CN109494845A - Load driving control system - Google Patents
Load driving control system Download PDFInfo
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- CN109494845A CN109494845A CN201811643114.2A CN201811643114A CN109494845A CN 109494845 A CN109494845 A CN 109494845A CN 201811643114 A CN201811643114 A CN 201811643114A CN 109494845 A CN109494845 A CN 109494845A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
- H02J7/0034—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits using reverse polarity correcting or protecting circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The embodiment of the invention discloses a kind of load driving control systems, comprising: the output end of battery provides first voltage and the first electric current for exporting the first power supply signal, the first power supply signal；Switching circuit and load driving circuits；Control module, the control terminal of switching circuit are electrically connected with the output end of control module, and control module is connected or turns off for control switch circuit.Technical solution provided in an embodiment of the present invention, provided with including switching circuit, the first current distributing for will be provided by battery avoids battery the problem of powered on moment sparking occurs because transient current is excessive, corrosion is even exploded, makes battery power supply mode safer.
Description
Technical field
The present embodiments relate to battery protection technical field more particularly to a kind of load driving control systems.
Background technique
Some biggish loads of power dissipation ratio usually require powerful power supply, and powerful power supply is directly the drive of load
Dynamic circuit power supply.If power supply does not have anti-reverse design, in fact it could happen that power positive cathode reversal connection is directly damaged in load driving circuits
Bad battery or driving circuit.On the other hand, if power supply does not have protecting circuit designed, the switch of directly opening power supply is to load
Power supply, this mode that powers on are easy to allow battery sparking occurs because transient current is excessive in powered on moment, corrode and even explode
The phenomenon that.
Illustratively, marine electric propeller is powered using lithium battery or solar panel, drives spiral shell by motor
It revolves paddle or impeller transmission generates thrust and then provides power to ships and light boats, be applicable to the occasions such as fishing leisure, sports waterborne.
These marine electric propellers usually require the heavy-duty motor more than using multikilowatt to provide and meet needs
Torque, and great-capacity power battery is equipped with as power supply.Existing battery lacks the protection circuit under high power discharge operating condition,
It directly turns on the power switch and powers to the heavy current installation on propeller.It is this power on mode be easy to allow battery powered on moment because
Transient current is excessive and the security risks such as sparking, explosion occurs.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of load driving control system, to solve battery in the prior art
Powered on moment because transient current is excessive occur sparking, corrosion even explode the technical issues of, allow battery power supply mode more
Safety.
The embodiment of the invention provides a kind of load driving control systems, comprising:
Battery, including output end, the output end of the battery is for exporting the first power supply signal, first power supply signal
First voltage and the first electric current are provided；
Switching circuit and load driving circuits, the power input of the switching circuit and the output end of the battery are electrically connected
It connects；The power output end of the switching circuit is electrically connected with the power input of the load driving circuits；
Control module, the control terminal of the switching circuit are electrically connected with the output end of the control module, the control mould
Block is used for for controlling the switching circuit conducting or shutdown, the switching circuit by first current distributing.
Optionally, the switching circuit includes at least one branch, the first end of every branch and the battery
Output end electrical connection, the second end of every branch are electrically connected with the power input of the load driving circuits, the branch
Power input of the first end on road as the switching circuit, power supply of the second end of the branch as the switching circuit
Output end.
Optionally, the switching circuit further includes first diode, current-limiting resistance and charging capacitor, the first diode
Anode be electrically connected with the output end of the battery, the cathode of the first diode and the first end of the current-limiting resistance are electrically connected
It connects, the second end of the current-limiting resistance is electrically connected with the anode of the charging capacitor, the cathode ground connection of the charging capacitor, described
The second end of current-limiting circuit is electrically connected with the power input of the load driving circuits, and the control module controls the switch
When circuit turns off, the battery is charging capacitor charging.
It optionally, further include direct current transformation unit, the input terminal of the direct current transformation unit and the output end of the battery
Electrical connection, the output end of the direct current transformation unit are electrically connected with the power input of the control module, for being the control
Molding block provides power supply, and the direct current transformation unit is used to convert second source signal for first power supply signal, described
The numerical value for the second voltage that second source signal provides is less than the numerical value for the first voltage that first power supply signal provides.
Optionally, the control module includes first control unit and switch driving circuit；
The control signal output of the first control unit and the control signal input of switch driving circuit electricity
Connection, the control signal output output high level signal or low level signal of the first control unit；
The switch driving circuit includes the first power output end and second source output end, and the switch driving circuit is used
In the level signal that is exported according to the control signal output of the first control unit change first power output end and
The voltage value of the second source output end output.
Optionally, the control module further includes reception of wireless signals unit；
The output end of the reception of wireless signals unit is electrically connected with the signal input part of the first control unit, described
The control signal output of first control unit is electrically connected with the control signal input of the switch driving circuit, and described first
Control unit is used for the wireless signal exported according to the output end of the reception of wireless signals unit, and it is single to control first control
The control signal output output high level signal or low level signal of member.
Optionally, the switch driving circuit includes the first transistor and isolated power supply chip；
The base stage of the first transistor is electrically connected with the control signal output of the first control unit, and described first
The emitter of transistor is grounded, the first power input electricity of the collector of the first transistor and the isolated power supply chip
Connection, the second source input terminal of the isolated power supply chip is electrically connected with the output end of the direct current transformation unit, for connecing
Enter the second voltage, first power supply of the first power output end of the isolated power supply chip as the switch driving circuit
Output end, second source output end of the second source output end of the isolated power supply chip as the switch driving circuit；
When the first transistor is connected, the second of the first power output end of the isolated power supply chip and the isolated power supply chip
The numerical value of the voltage of power output end output is greater than the first power input and the isolated power supply of the isolated power supply chip
The numerical value of the voltage of the second source input terminal of chip.
Optionally, each branch includes first switch unit and second switch unit；
The first power output end or the second electricity of the control terminal of the first switch unit and the isolated power supply chip
Source output terminal electrical connection, the first end of the first switch unit are electrically connected with the output end of the battery, the first switch
The second end of unit is electrically connected with the second source output end of the isolated power supply chip or the first power output end；Described
The control terminal of two switch units is electrically connected with the first power output end of the isolated power supply chip or second source output end,
The first end of the second switch unit is electrically connected with the power input of the load driving circuits, the second switch unit
Second end be electrically connected with the second source output end of the isolated power supply chip or the first power output end.
Optionally, the first switch unit includes the first NMOS tube, and the second switch unit includes the second NMOS tube；
In branch described in each, the grid of first NMOS tube and the first power supply of the switch driving circuit are defeated
Outlet electrical connection, the drain electrode of first NMOS tube are electrically connected with the output end of the battery, the source electrode of first NMOS tube
It is electrically connected with the second source output end of the switch driving circuit；The grid of second NMOS tube and switch driving electricity
First power output end on road is electrically connected, the drain electrode of second NMOS tube and the power input electricity of the load driving circuits
Connection, the source electrode of second NMOS tube are electrically connected with the second source output end of the switch driving circuit；
Alternatively, the first switch unit includes the first PMOS tube, the second switch unit includes the second PMOS tube；
In branch described in each, the second source of the grid and the switch driving circuit of first PMOS tube is defeated
Outlet electrical connection, the source electrode of first PMOS tube are electrically connected with the output end of the battery, the drain electrode of first PMOS tube
It is electrically connected with the first power output end of the switch driving circuit；The grid of second PMOS tube and switch driving electricity
The second source output end on road is electrically connected, the source electrode of second PMOS tube and the power input electricity of the load driving circuits
Connection, the drain electrode of second PMOS tube are electrically connected with the first power output end of the switch driving circuit.
Optionally, the switch driving circuit further includes the first voltage regulation filtering unit and the second voltage regulation filtering unit；
The first voltage regulation filtering unit is connected in parallel on the first power input and described second of the isolated power supply chip
Between power input, the first power input of the first end of the first voltage regulation filtering unit and the isolated power supply chip
Electrical connection, the second end of the first voltage regulation filtering unit are electrically connected with the second source input terminal of the isolated power supply chip；
The second voltage regulation filtering unit is connected in parallel on the first power output end and the second source output of the isolated power supply chip
Between end, the first end of the second voltage regulation filtering unit is electrically connected with the first power output end of the isolating chip, described
The second end of second voltage regulation filtering unit is electrically connected with the second source output end of the isolating chip.
The embodiment of the invention provides a kind of load driving control systems, switching circuit are provided with, for that will be mentioned by battery
The first current distributing supplied, with solution, there is sparking, corrosion because transient current is excessive in powered on moment in battery in the prior art
The technical issues of even exploding.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram for loading driving control system provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another load driving control system provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of the switch driving circuit provided in Fig. 1 and Fig. 2；
Fig. 4 is a kind of structural schematic diagram of the switching circuit provided in Fig. 1 and Fig. 2；
Fig. 5 is the structural schematic diagram of another switching circuit in Fig. 1 and Fig. 2；
Fig. 6 is the structural schematic diagram of another switching circuit in Fig. 1 and Fig. 2；
Fig. 7 is the structural schematic diagram of another switching circuit in Fig. 1 and Fig. 2；
Fig. 8 is the structural schematic diagram of another switching circuit in Fig. 1 and Fig. 2；.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram for loading driving control system provided in an embodiment of the present invention, and referring to Fig. 1, this is negative
Carrying driving control system includes: battery 100, including output terminals A 1, and the output terminals A 1 of battery 100 is for exporting the first power supply letter
Number, the first power supply signal provides first voltage and the first electric current；First voltage is illustrative, is+48V.Switching circuit 200 and negative
Driving circuit 300 is carried, the power input B1 of switching circuit 200 is electrically connected with the output terminals A 1 of battery 100；Switching circuit 200
Power output end B2 be electrically connected with the power input C1 of load driving circuits 300；Control module 400, switching circuit 200
Control terminal B3 is electrically connected with the output end D1 of control module 400, control module 400 for control switch circuit 200 be connected or
Shutdown, switching circuit 200 are used for the first current distributing.
It should be noted that in the present embodiment, load is illustrated by taking motor as an example.Load driving circuits are with electronic
Drive circuit is illustrated.Load driving control system is illustrated with motor-driven control system.The power supply of motor
Input terminal is electrically connected with the output end of motor drive circuit, and motor drive circuit is used to provide power supply for motor, and drives
Dynamic motor running.
The embodiment of the invention provides a kind of load driving control systems, switching circuit are provided with, for that will be mentioned by battery
The first current distributing supplied, to solve to provide the battery of power supply in powered on moment because transient current is excessive for load in the prior art
And there is sparking, corrodes the technical issues of even exploding.Illustratively, full in the driving circuit of marine electric propeller
It needs to use high power battery as power supply in the foot driving circuit of marine electric propeller, and directly turns on the power switch just
The technical need that can be powered to heavy current installations various on machine outside.
Optionally, switching circuit 200 includes at least one branch, and the first end of every branch and the output end of battery are electrically connected
It connects, the second end of every branch is electrically connected with the power input of load driving circuits, and the first end of branch is as switching circuit
Power input, power output end of the second end of branch as switching circuit.
Optionally, based on the above technical solution, referring to fig. 4, switching circuit 200 further includes first diode
D211, current-limiting resistance R9 and charging capacitor C10, the anode of first diode D211 are electrically connected with the output terminals A 1 of battery 100, the
The cathode of one diode D211 is electrically connected with the first end of current-limiting resistance R9, the second end and charging capacitor C10 of current-limiting resistance R9
Anode electrical connection, the cathode ground connection of charging capacitor C10, the second end of current-limiting circuit R9 and the power input of load driving circuits
C1 electrical connection is held, when 400 control switch circuit 200 of control module turns off, battery 100 is charging capacitor C10 charging.
Optionally, referring to fig. 2, on the basis of above-mentioned technology, above-mentioned control system further includes direct current transformation unit 500,
The input terminal E1 of direct current transformation unit 500 is electrically connected with the output terminals A 1 of battery 100, the output end E2 of direct current transformation unit 500
It is electrically connected with the power input D2 of control module 400, for providing power supply for control module 400, direct current transformation unit 500 is used
In converting second source signal for the first power supply signal, the numerical value for the second voltage that second source signal provides is less than the first electricity
The numerical value for the first voltage that source signal provides.The second source signal of the output end E2 output of direct current transformation unit 500 is for being
Control module 400 provides power supply and illustratively provides the voltage of+15V.Under normal circumstances, the device in control module 400 is equal
It needs light current as power supply, therefore second source signal is used to provide power supply for control module 400, avoid burning control module
Device in 400 increases marine electric to realize the stable operating voltage of marine electric propeller battery powered on moment weak current equipment
The safety and stability that dynamic propeller uses.
Optionally, referring to fig. 2, on the basis of above-mentioned technology, control module 400 includes first control unit 410 and opens
Close driving circuit 430；The control signal output G2 of first control unit 410 and the control signal of switch driving circuit 430 are defeated
Enter H1 is held to be electrically connected, the control signal output G2 output high level signal or low level signal of first control unit 410；It opens
Closing driving circuit 430 includes the first power output end H2 and second source output end H3, and switch driving circuit 430 is used for according to the
The level signal of the control signal output G2 output of one control unit 410 changes the first power output end H2 and second source is defeated
The voltage value of outlet H3 output.
Optionally, based on the above technical solution, a light current key switch can be used in first control unit 410
It replaces, light current key switch can issue high level or low level signal comes unlatching and the pass of trigger switch driving circuit 430
It closes.First control unit exports the triggering reason of low and high level signal, and first control unit output signal can be under normal circumstances
By the signal of an other controller, perhaps sampled signal to trigger perhaps triggers also by key switch or passes through nothing
Line signal triggers.The technical solution for triggering first control unit 410 by wireless signal is specifically described as follows:
Optionally, control module 400 further includes reception of wireless signals unit 420.The output of reception of wireless signals unit 420
End F1 be electrically connected with the signal input part G1 of first control unit 410, the control signal output G2 of first control unit 410 and
The control signal input H1 of switch driving circuit 430 is electrically connected, and first control unit 410 is used for according to reception of wireless signals list
The wireless signal of the output end F1 output of member 420, the control signal output G2 of control first control unit 410 export high level
Signal or low level signal；Switch driving circuit 430 includes the first power output end H2 and second source output end H3, switch
Driving circuit 430 is used to change the first electricity according to the level signal that the defeated G2 of control signal output of first control unit 310 goes out
The voltage value of source output terminal H2 and second source output end H3 output.
It optionally, further include wireless control module 600, wireless control module 600 includes key 610, the second control unit
620 and wireless signal transmission unit 630；The signal input part G21 electricity of the output end H11 of key 610 and the second control unit 620
Connection, the output end G11 of the second control unit 620 are electrically connected with the control signal input F11 of wireless signal transmission unit 430
It connects；The output end F12 of wireless signal transmission unit 630 and the input terminal F2 of reception of wireless signals unit 420 are communicated to connect.Example
Property, wireless signal transmission unit 630 can be infrared emission unit, and reception of wireless signals unit 420 can be infrared receiver
Unit.
Optionally, referring to Fig. 3, based on the above technical solution, switch driving circuit 430 includes the first transistor Q1
With isolated power supply chip U1；The base stage Q11 of the first transistor Q1 is electrically connected with the control signal output G2 of first control unit 410
It connects, the emitter Q12 ground connection of the first transistor Q1, the first of the collector Q13 and isolated power supply chip U1 of the first transistor Q1
Power input U11 electrical connection, the output of the second source input terminal U12 and direct current transformation unit 500 of isolated power supply chip U1
E2 electrical connection is held, is illustratively+15V, the first power output end U13 of isolated power supply chip U1 for accessing second voltage
As the first power output end H2 of switch driving circuit 430, the second source output end U14 of isolated power supply chip U1, which is used as, to be opened
Close the second source output end H3 of driving circuit；When the first transistor Q1 is connected, the first power supply output of isolated power supply chip U1
Hold the numerical value of the voltage of the second source output end U14 output of U13 and isolated power supply chip U1 greater than isolated power supply chip U1's
The numerical value of the voltage of the second source input terminal U12 of first power input U11 and isolated power supply chip.
Optionally, based on the above technical solution, referring to fig. 4, switching circuit 200 includes at least one branch, is shown
Example property, show five parallel branches.Optionally, Fig. 4 shows the road of five parallel connections, is L1, L2, L3, L4 and L5 respectively.
Five branch circuit parallel connections are between the output terminals A 1 of battery 100 and the power input C1 of load driving circuits 300, in the present embodiment
In, it is the power supply import and export end of motor drive circuit.The first end of every branch is electrically connected with the output end of battery 100, often
The second end of branch is electrically connected with the power input C1 of load driving circuits 300, and the first end of branch is as switching circuit
Power input, power output end of the second end of branch as switching circuit, five branches are used for the first current distributing.
It is L1, L2, L3, L4 and L5 respectively for the road of five parallel connections.Each branch includes that first switch unit 2101 and second open
Close unit 2102；The control terminal I1 of first switch unit 2101 and the first power output end H2 of switch driving circuit 430 or
Second source output end H3 electrical connection, the first end I2 of first switch unit 2101 are electrically connected with the output terminals A 1 of battery 100, the
The second end I3 of one switch unit 2101 and the second source output end H3 of switch driving circuit 430 or the first power output end
H2 electrical connection；The control terminal J1 of second switch unit 2102 and the first power output end H2 of switch driving circuit 430 or the
Two power output end H3 electrical connection, load driving circuits of the first end J2 and motor of second switch unit 2102 as load
200 power input C1 electrical connection, the second end J3 of second switch unit 2012 and the second source of switch driving circuit 430
Output end H3 or the first power output end H2 electrical connection.
Optionally, referring to fig. 4, switching circuit 200 further includes first diode D211, current-limiting resistance R9 and charging capacitor
C10, the anode of first diode D211 are electrically connected with the output terminals A 1 of the battery 100, the cathode of first diode D211 with
The first end of current-limiting resistance R9 is electrically connected, and the second end of current-limiting resistance R9 is electrically connected with the anode of charging capacitor C10, charging capacitor
The cathode of C10 is grounded, and the second end of current-limiting resistance R9 is electrically connected with the power input C1 of load driving circuits, control module
When the branch shutdown of 400 control switch circuits 200, battery 100 is charging capacitor C10 charging.
It should be understood that the output terminals A 1 of battery 100 is for exporting the first power supply letter referring to Fig. 1, Fig. 2, Fig. 3 and Fig. 4
Number, the power input B1 of switching circuit is electrically connected with the output terminals A 1 of battery 100, and battery 100 provides power supply for switching circuit,
It is illustratively+48V.Above-mentioned control system further includes direct current transformation unit 500, the input terminal E1 of direct current transformation unit 500 with
The output terminals A 1 of battery 100 is electrically connected, the output end E2 of direct current transformation unit 500 and the power input D2 of control module 400
Electrical connection, for providing power supply, the second source signal of the output end E2 output of direct current transformation unit 500 for control module 400
For providing power supply for control module 400, illustratively, the voltage of+15V is provided.Illustratively, when the output end of battery 100
The voltage signal of A1 output -48V, battery 100 provide power supply, -48V for switching circuit.Meanwhile direct current transformation unit 500 is defeated
The second source signal of outlet E2 output is used to provide power supply for control module 400, illustratively, provides the voltage of -15V.This
When, 400 control switch circuit 200 of control module shutdown, battery 100 is charging capacitor C10 charging, and the time of charging is first pre-
It is illustratively t1 if the time.
I.e. control module 400 is being powered on and initialized, in the first preset time t of time 1, the first control of control module 400
Unit 410 processed sends the first driving signal, 430 first power output end of control switch driving circuit to switch driving circuit 430
The voltage value of H2 and second source output end H3 output, the voltage of the first power output end H2 and second source output end H3 output
It is in an off state to be worth control switch circuit 200.Electric plating propulsion thus is avoided that after connecting battery in the t1 time, to large capacity
Battery spark phenomenon caused by the charging current of the capacitive load of charging capacitor C10 and rear class high-power circuit is excessive.
After the t1 time, i.e., after the capacitive load charging complete of above-mentioned large bulk capacitance C10 and rear class high-power circuit,
First control unit 410 sends the second driving signal, 430 first power supply of control switch driving circuit to switch driving circuit 430
The voltage value of output end H2 and second source output end H3 output, the first power output end H2 and second source output end H3 output
Voltage value control switch circuit 200 it is in the conductive state.Battery 100 export high current can be by switching circuit 200
The power supply of rear class high-power circuit, then class large power circuit works normally.
When power input of the user by the positive and negative anodes reversal connection electric plating propulsion of battery, due to first diode D211's
One-way conduction and first diode D211 are in reverse-bias state, therefore direct current transformation unit 500 does not work on power, because
This control module does not work on power, therefore switching circuit is in off state.Meanwhile first diode D211 is also at reversely
Bias state, therefore battery, under reversal connection state, switching circuit is not turned on, and plays anti-reverse effect.
Optionally, referring to Fig. 5, first switch unit 2101 includes the first NMOS tube N1, and second switch unit 2102 includes
Second NMOS tube N2；In each branch, the grid N1G of the first NMOS tube N1 and the first power supply of switch driving circuit 430
Output end H2 electrical connection, the drain electrode N1D of the first NMOS tube N1 are electrically connected with the output terminals A 1 of battery 100, the first NMOS tube N1's
Source electrode N1S is electrically connected with the second source output end H3 of switch driving circuit 430；The grid N2G and switch of second NMOS tube N2
First power output end H2 of driving circuit 430 is electrically connected, the drain electrode N2D and motor drive circuit 200 of the second NMOS tube N2
Power input C1 electrical connection, the second source output end H3 of the source electrode N2S of the second NMOS tube N2 and switch driving circuit 430
Electrical connection.
Alternatively, first switch unit includes the first PMOS tube P1 referring to Fig. 6, second switch unit includes the second PMOS tube
P2；In each branch, the grid P1G of the first PMOS tube P1 and the second source output end H3 electricity of switch driving circuit 430
Connection, the source electrode P1S of the first PMOS tube P1 is electrically connected with the output terminals A 1 of battery 100, the drain electrode P1D of the first PMOS tube P1 with open
Close the first power output end H2 electrical connection of driving circuit 430；The grid P2G and switch driving circuit 430 of second PMOS tube P2
Second source output end H3 electrical connection, the power input of the source electrode P2S of the second PMOS tube P2 and motor drive circuit 200
C1 electrical connection, the drain electrode P2D of the second PMOS tube P2 are electrically connected with the first power output end H2 of switch driving circuit 430.
It should be noted that first switch unit and second switch unit are in addition to can be metal oxide semiconductcor field effect
It answers except transistor (NMOS or PMOS), can also be insulated gate bipolar transistor or bipolar junction transistor.
Optionally, a D210 is respectively further comprised referring to Fig. 5, first switch unit and second switch unit；Two or two pole
The anode of pipe D210 is electrically connected with the source electrode N1S of the first NMOS tube N1, the cathode of the second diode D210 and the first NMOS tube N1
Drain electrode N1D electrical connection, the anode of the second diode D210 is electrically connected with the source electrode N2S of the second NMOS tube N2, the second diode
The cathode of D210 is electrically connected with the drain electrode N2D of the second NMOS tube N2；Alternatively, referring to Fig. 6, the anode of the second diode D210 and
The drain electrode P1D of one PMOS tube P1 is electrically connected, and the cathode of the second diode D210 is electrically connected with the source electrode P1S of the first PMOS tube P1,
The anode of second diode D210 is electrically connected with the drain electrode P2D of the second PMOS tube P2, the cathode and second of the second diode D210
The source electrode P2S of PMOS tube P2 is electrically connected.
The metal-oxide-semiconductor that switch unit in Fig. 5 and Fig. 6 is chosen, switching circuit include 5 branches, and each branch includes two
A concatenated metal-oxide-semiconductor, the first current distributing for providing battery.
Optionally, the grid Q11 for the first transistor Q1 that the switch driving circuit 430 in Fig. 3 includes is single in the first control
When the high level signal of the control signal output G2 of member 410, the first transistor Q1 conducting, the first electricity of isolated power supply chip U1
Source input terminal U11 accesses ground signalling, and the first power output end U13 of isolated power supply chip U1 exports tertiary voltage, isolation electricity
The second source output end U14 of source chip U1 exports the 4th voltage.The first crystalline substance that switch driving circuit 430 in Fig. 3 includes
The grid Q11 of body pipe Q1 is in the low level signal of the control signal output G2 of first control unit 310, the first transistor Q1
Cut-off, the second source output end of the first power output end U13 and isolated power supply chip U1 of isolated power supply chip U1 do not export
Voltage signal.
Specifically, the first transistor Q1 is connected, the first power input U11 access ground connection letter of isolated power supply chip U1
Number, the first power output end U13 of isolated power supply chip U1 exports tertiary voltage, the second source output of isolated power supply chip U1
When U14 being held to export four voltage, Fig. 5 and the metal-oxide-semiconductor shown in Fig. 6 are connected under the control of tertiary voltage and the 4th voltage, composition 5
Branch parallel branch, the first current distributing for providing battery module.
Optionally, referring to Fig. 3, switch driving circuit further includes the first voltage regulation filtering unit 4301 and the second voltage regulation filtering list
Member 4302；First voltage regulation filtering unit 4301 is connected in parallel on the first power input U11 and second source of isolated power supply chip U1
Between input terminal U12, the first end of the first voltage regulation filtering unit 4301 and the first power input U11 of isolated power supply chip U1
Electrical connection, the second end of the first voltage regulation filtering unit 4302 are electrically connected with the second source input terminal U12 of isolated power supply chip U1；
Second voltage regulation filtering unit 4302 is connected in parallel on the first power output end U13 and second source output end of isolated power supply chip U1
Between U14, the first end of the second voltage regulation filtering unit 4302 is electrically connected with the first power output end U13 of isolated power supply chip U1
It connects, the second end of the second voltage regulation filtering unit 4302 is electrically connected with the second source output end U14 of isolated power supply chip U1.It is optional
, the first voltage regulation filtering unit 4301 includes the first zener diode D3, the second zener diode D4, first capacitor C2, second
Capacitor C3 and third capacitor C4.Second voltage regulation filtering unit 4302 includes the 4th capacitor C5, the 5th capacitor C6, third diode
D5, first resistor R1 and the 4th diode D6.Optionally, isolated power supply chip U1 further includes second resistance R2 and light emitting diode
D7, light emitting diode D7 shine when Q1 is connected.Optionally, based on the above technical solution, the 4th zener diode D6
Cathode U13 ' as switch driving circuit 430 the first power output end H2, the 4th zener diode D6 anode U14 ' make
For the second source output end H3 of switch driving circuit, for exporting the telecommunications more stable than the electric signal between U13 and U14
Number.Optionally, switch driving circuit 430 further includes 3rd resistor R3, the 4th resistance R4 and the 6th capacitor C7.
Optionally, in referring to figs. 5 and 6, the switching circuit in Fig. 5 further includes the 5th resistance for voltage regulation filtering
R5, the 6th resistance R6 and the 7th capacitor C8 and the 7th resistance R7, the 8th resistance R8 and the 8th capacitor C9.
It should be noted that based on the above technical solution, referring to figs. 7 and 8.In Fig. 7, due to above-mentioned technical side
It is mentioned in case, switch driving circuit includes isolated power supply chip U1, and switch driving circuit further includes the first voltage regulation filtering unit
4301 and the second voltage regulation filtering unit 4302, therefore, first switch unit 2101 includes the first NMOS tube N1, second switch unit
2102 include the second NMOS tube N2；In each branch, the grid N1G's and the 4th zener diode D6 of the first NMOS tube N1
Cathode U13 ' electrical connection, the source electrode N1S of the first NMOS tube N1 are electrically connected with the anode U14 ' of the 4th zener diode D6.Second
The grid N2G of NMOS tube N2 is electrically connected with the cathode U13 ' of the 4th zener diode D6, the source electrode N2S of the second NMOS tube N2 and
The anode U14 ' of four zener diode D6 is electrically connected.
In Fig. 8, first switch unit includes the first PMOS tube P1, and second switch unit includes the second PMOS tube P2.First
The grid P1G of PMOS tube P1 is electrically connected with the anode U14 ' of the 4th zener diode D6, the drain electrode P1D of the first PMOS tube P1 and
The cathode U13 ' of four zener diode D6 is electrically connected.The anode of the grid P2G and the 4th zener diode D6 of second PMOS tube P2
U14 ' electrical connection, the drain electrode P2D of the second PMOS tube P2 are electrically connected with the cathode U13 ' of the 4th zener diode D6.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of load driving control system characterized by comprising
Battery, including output end, the output end of the battery are provided for exporting the first power supply signal, first power supply signal
First voltage and the first electric current；
Switching circuit and load driving circuits, the power input of the switching circuit are electrically connected with the output end of the battery；
The power output end of the switching circuit is electrically connected with the power input of the load driving circuits；
Control module, the control terminal of the switching circuit are electrically connected with the output end of the control module, and the control module is used
In controlling the switching circuit conducting or turning off, the switching circuit is used for first current distributing.
2. load driving control system according to claim 1, which is characterized in that
The switching circuit includes at least one branch, and the first end of every branch and the output end of the battery are electrically connected
It connects, the second end of every branch is electrically connected with the power input of the load driving circuits, the first end of the branch
As the power input of the switching circuit, power output end of the second end of the branch as the switching circuit.
3. load driving control system according to claim 2, which is characterized in that
The switching circuit further includes first diode, current-limiting resistance and charging capacitor, the anode of the first diode and institute
The output end electrical connection of battery is stated, the cathode of the first diode is electrically connected with the first end of the current-limiting resistance, the limit
The second end of leakage resistance is electrically connected with the anode of the charging capacitor, the cathode ground connection of the charging capacitor, the current-limiting circuit
Second end be electrically connected with the power input of the load driving circuits, the control module controls the switching circuit shutdown
When, the battery is charging capacitor charging.
4. load driving control system according to claim 2, which is characterized in that
It further include direct current transformation unit, the input terminal of the direct current transformation unit is electrically connected with the output end of the battery, described
The output end of direct current transformation unit is electrically connected with the power input of the control module, for providing electricity for the control module
Source, the direct current transformation unit are used to convert second source signal, the second source signal for first power supply signal
The numerical value of the second voltage of offer is less than the numerical value for the first voltage that first power supply signal provides.
5. load driving control system according to claim 4, which is characterized in that
The control module includes first control unit and switch driving circuit；
The control signal output of the first control unit is electrically connected with the control signal input of the switch driving circuit,
The control signal output output high level signal or low level signal of the first control unit；
The switch driving circuit includes the first power output end and second source output end, and the switch driving circuit is used for root
Change first power output end and described according to the level signal that the control signal output of the first control unit exports
The voltage value of second source output end output.
6. load driving control system according to claim 5, which is characterized in that
The control module further includes reception of wireless signals unit；
The output end of the reception of wireless signals unit is electrically connected with the signal input part of the first control unit, and described first
The control signal output of control unit is electrically connected with the control signal input of the switch driving circuit, first control
Unit is used for the wireless signal exported according to the output end of the reception of wireless signals unit, controls the first control unit
Control signal output exports high level signal or low level signal.
7. load driving control system according to claim 5, which is characterized in that
The switch driving circuit includes the first transistor and isolated power supply chip；
The base stage of the first transistor is electrically connected with the control signal output of the first control unit, the first crystal
The emitter of pipe is grounded, and the collector of the first transistor and the first power input of the isolated power supply chip are electrically connected
It connects, the second source input terminal of the isolated power supply chip is electrically connected with the output end of the direct current transformation unit, for accessing
First power output end of the second voltage, the isolated power supply chip is defeated as the first power supply of the switch driving circuit
Outlet, second source output end of the second source output end of the isolated power supply chip as the switch driving circuit；Institute
When stating the first transistor conducting, the second electricity of the first power output end of the isolated power supply chip and the isolated power supply chip
The numerical value of the voltage of source output terminal output is greater than the first power input and the isolated power supply core of the isolated power supply chip
The numerical value of the voltage of the second source input terminal of piece.
8. load driving control system according to claim 7, which is characterized in that
Each branch includes first switch unit and second switch unit；
The control terminal of the first switch unit and the first power output end or second source of the isolated power supply chip are defeated
Outlet electrical connection, the first end of the first switch unit are electrically connected with the output end of the battery, the first switch unit
Second end be electrically connected with the second source output end of the isolated power supply chip or the first power output end；Described second opens
The control terminal for closing unit is electrically connected with the first power output end of the isolated power supply chip or second source output end, described
The first end of second switch unit is electrically connected with the power input of the load driving circuits, and the of the second switch unit
Two ends are electrically connected with the second source output end of the isolated power supply chip or the first power output end.
9. load driving control system according to claim 8, which is characterized in that
The first switch unit includes the first NMOS tube, and the second switch unit includes the second NMOS tube；
In branch described in each, the grid of first NMOS tube and the first power output end of the switch driving circuit
Electrical connection, the drain electrode of first NMOS tube are electrically connected with the output end of the battery, the source electrode of first NMOS tube and institute
State the second source output end electrical connection of switch driving circuit；The grid of second NMOS tube and the switch driving circuit
The electrical connection of first power output end, the drain electrode of second NMOS tube and the power input of the load driving circuits are electrically connected
It connects, the source electrode of second NMOS tube is electrically connected with the second source output end of the switch driving circuit；
Alternatively, the first switch unit includes the first PMOS tube, the second switch unit includes the second PMOS tube；
In branch described in each, the grid of first PMOS tube and the second source output end of the switch driving circuit
Electrical connection, the source electrode of first PMOS tube are electrically connected with the output end of the battery, the drain electrode of first PMOS tube and institute
State the first power output end electrical connection of switch driving circuit；The grid of second PMOS tube and the switch driving circuit
The electrical connection of second source output end, the power input of the source electrode and the load driving circuits of second PMOS tube are electrically connected
It connects, the drain electrode of second PMOS tube is electrically connected with the first power output end of the switch driving circuit.
10. load driving control system according to claim 7, which is characterized in that
The switch driving circuit further includes the first voltage regulation filtering unit and the second voltage regulation filtering unit；
The first voltage regulation filtering unit is connected in parallel on the first power input and the second source of the isolated power supply chip
Between input terminal, the first end of the first voltage regulation filtering unit and the first power input of the isolated power supply chip are electrically connected
It connects, the second end of the first voltage regulation filtering unit is electrically connected with the second source input terminal of the isolated power supply chip；It is described
Second voltage regulation filtering unit be connected in parallel on the isolated power supply chip the first power output end and the second source output end it
Between, the first end of the second voltage regulation filtering unit is electrically connected with the first power output end of the isolating chip, and described second
The second end of voltage regulation filtering unit is electrically connected with the second source output end of the isolating chip.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811643114.2A CN109494845B (en) | 2018-12-29 | 2018-12-29 | Load drive control system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811643114.2A CN109494845B (en) | 2018-12-29 | 2018-12-29 | Load drive control system |
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| CN109494845B CN109494845B (en) | 2021-06-29 |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516916A (en) * | 2001-08-13 | 2004-07-28 | 应达公司 | Fault tolerant power supply circuit |
| CN102035238A (en) * | 2010-12-28 | 2011-04-27 | 广东易事特电源股份有限公司 | Solar charging control circuit |
| CN102055346A (en) * | 2009-11-09 | 2011-05-11 | 群康科技(深圳)有限公司 | Switch power supply circuit |
| CN102055210A (en) * | 2009-11-01 | 2011-05-11 | 姜笃勇 | Equalizing charge method and device for series battery pack |
| JP2012009327A (en) * | 2010-06-25 | 2012-01-12 | Hitachi Koki Co Ltd | Battery pack and power tool having the same |
| CN102570552A (en) * | 2012-01-04 | 2012-07-11 | 周宇超 | Multifunctional control and protection circuit for storage battery power supply |
| CN104704704A (en) * | 2014-03-04 | 2015-06-10 | 华为终端有限公司 | Charging circuit and terminal |
| CN105703434A (en) * | 2016-03-21 | 2016-06-22 | 南京金龙新能源汽车研究院有限公司 | Battery management system with active equalization function |
-
2018
- 2018-12-29 CN CN201811643114.2A patent/CN109494845B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1516916A (en) * | 2001-08-13 | 2004-07-28 | 应达公司 | Fault tolerant power supply circuit |
| CN102055210A (en) * | 2009-11-01 | 2011-05-11 | 姜笃勇 | Equalizing charge method and device for series battery pack |
| CN102055346A (en) * | 2009-11-09 | 2011-05-11 | 群康科技(深圳)有限公司 | Switch power supply circuit |
| JP2012009327A (en) * | 2010-06-25 | 2012-01-12 | Hitachi Koki Co Ltd | Battery pack and power tool having the same |
| CN102035238A (en) * | 2010-12-28 | 2011-04-27 | 广东易事特电源股份有限公司 | Solar charging control circuit |
| CN102570552A (en) * | 2012-01-04 | 2012-07-11 | 周宇超 | Multifunctional control and protection circuit for storage battery power supply |
| CN104704704A (en) * | 2014-03-04 | 2015-06-10 | 华为终端有限公司 | Charging circuit and terminal |
| CN105703434A (en) * | 2016-03-21 | 2016-06-22 | 南京金龙新能源汽车研究院有限公司 | Battery management system with active equalization function |
Non-Patent Citations (2)
| Title |
|---|
| 咸庆信: "《变频器电路维修与故障实例分析》", 30 June 2013, 机械工业出版社 * |
| 贲洪奇: "《现代高频开关电源技术与应用》", 31 March 2018, 哈尔滨工业大学出版社 * |
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