CN109888768A - Interface arrangement and power-supply system - Google Patents
Interface arrangement and power-supply system Download PDFInfo
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- CN109888768A CN109888768A CN201910216688.XA CN201910216688A CN109888768A CN 109888768 A CN109888768 A CN 109888768A CN 201910216688 A CN201910216688 A CN 201910216688A CN 109888768 A CN109888768 A CN 109888768A
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Abstract
This application involves a kind of interface arrangement and power-supply systems, a kind of interface arrangement, for in power-supply system, power-supply system includes DC power supply and bus, interface arrangement includes input, output end and half-bridge topology circuit, input terminal is connect with DC power supply, and output end is connect with bus, and half-bridge topology circuit is used for the input-output power of control interface device；Wherein, half-bridge topology circuit includes first switch tube and second switch, and first switch tube is in parallel with input terminal, and second switch is connected between input terminal and first switch tube.Above-mentioned interface arrangement is connected between DC power supply and bus, after interface arrangement receives the electric energy of DC power supply, output is to bus after the processing of half-bridge topology circuit, it realizes to the power regulation between DC power supply and bus, improve the safety of power-supply system, and when multiple DC power supplies are connected on bus, it may be implemented to obtain plucked instrument interconnection between each DC power supply and power mutually help.
Description
Technical field
The present invention relates to the technical fields of electric system, more particularly to a kind of interface arrangement and power-supply system.
Background technique
In traditional DC power system, generally there are multiple low-voltage dc power supplies to be connected on DC bus.Due to
Single power is limited, needs when use to limit the general power of local power load, and multiple independent electricity
Source can reduce the flexibility of electricity consumption, cannot achieve the power regulation between each DC power supply and DC bus.And it directly will be electric
Each DC power supply in the system of source is attached, and can have some potential safety problems.
Summary of the invention
Based on this, it is necessary in view of the above technical problems, a kind of interface arrangement and power-supply system are provided, it can safe spirit
The interconnection of realization DC power supply living, and the power between DC power supply and bus is adjusted.
A kind of interface arrangement, in power-supply system, the power-supply system to include DC power supply and bus, the interface dress
Set including input, output end and half-bridge topology circuit, the input terminal is connect with the DC power supply, the output end with
The bus connection, the half-bridge topology circuit are used to control the input-output power of the interface arrangement；
Wherein, the half-bridge topology circuit includes first switch tube and second switch, the first switch tube and institute
Input terminal parallel connection is stated, the second switch is connected between the input terminal and the first switch tube.
Above-mentioned interface arrangement is connected between DC power supply and bus, after interface arrangement receives the electric energy of DC power supply,
Output is realized to the power regulation between DC power supply and bus, is improved to bus after the processing of half-bridge topology circuit
The safety of power-supply system, and when multiple DC power supplies are connected on bus, it may be implemented between each DC power supply
It is connected with each other and power mutually helps.
The half-bridge topology circuit further includes first diode and the second diode in one of the embodiments,；It is described
First diode is in parallel with the first switch tube, and second diode is in parallel with the second switch.
The first switch tube and the second switch are field-effect tube in one of the embodiments, described first
The source electrode of switching tube is connect with the input terminal, and the drain electrode of the first switch tube is connect with the output end；Described second opens
The source electrode for closing pipe is connect with the drain electrode of the first switch tube, and the drain electrode of the second switch is connect with the input terminal.
The interface arrangement includes control unit in one of the embodiments, and described control unit includes processor, deposits
At least one of reservoir, power management chip, digital quantity input/output interface and analog input and output interface.
The interface arrangement further includes protection location in one of the embodiments,；Described control unit is in the power supply
In the case that overcurrent or short circuit occurs in system, the protection location is controlled by the first switch tube and/or the second switch
Pipe disconnects.
The interface arrangement further includes communication unit and/or display unit in one of the embodiments,；The control is single
Member controls the communication unit and PERCOM peripheral communication, described control unit control the number that the display unit shows the interface arrangement
It is believed that breath.
A kind of power-supply system, including bus, DC power supply and above-mentioned interface arrangement；
Wherein, the DC power supply is connected on the bus by the interface arrangement, and the half-bridge topology circuit is used
In the input-output power for controlling the interface arrangement.
Above-mentioned power-supply system, is connected between DC power supply and bus by interface arrangement, and interface arrangement receives direct current
After the electric energy in source, output is realized to bus to the function between DC power supply and bus after the processing of half-bridge topology circuit
Rate is adjusted, and improves the safety of power-supply system, and when multiple DC power supplies are connected on bus, may be implemented each straight
Interconnection and power between galvanic electricity source are mutually helped.
The quantity of the DC power supply is multiple in one of the embodiments, and the quantity of the interface arrangement is multiple；
Wherein, each DC power supply is connected in parallel to the bus by an interface arrangement.
The bus includes line inductance in one of the embodiments, and the interface arrangement utilizes the line inductance
It is filtered.
The power-supply system further includes power load in one of the embodiments, and the power load passes through load line
Road is connected on the DC power supply.
Detailed description of the invention
Fig. 1 is the module diagram of interface arrangement in one embodiment；
Fig. 2 is the module diagram of interface arrangement in another embodiment；
Fig. 3 is the structural schematic diagram of interface arrangement in one embodiment；
Fig. 4 is the structural schematic diagram of power-supply system in one embodiment；
Fig. 5 is the structural schematic diagram of power-supply system in another embodiment.
Specific embodiment
It is with reference to the accompanying drawings and embodiments, right in order to which the objects, technical solutions and advantages of the application are more clearly understood
The application is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain the application, and
It is not used in restriction the application.
Fig. 1 is the module diagram of interface arrangement in one embodiment, as shown in Figure 1, in one embodiment, Yi Zhongjie
Mouthful device 100, in power-supply system, power-supply system includes DC power supply and bus, interface arrangement 100 include input terminal 140,
Output end 160 and half-bridge topology circuit, input terminal 140 are connect with DC power supply, and output end 160 is connect with bus, and half-bridge is opened up
Flutter input-output power of the circuit for control interface device 100；Wherein, half-bridge topology circuit include first switch tube 122 with
And second switch 124, first switch tube 122 is in parallel with input terminal 140, and second switch connects 124 and connects in input terminal and first
Between switching tube.
Specifically, in interface arrangement 100, input terminal 140 is used to receive electric energy from DC power supply, and output end 160 is used for
It is powered to bus, passes through half-bridge topology circuit connection, the half-bridge of interface arrangement 100 between input terminal 140 and output end 160
Topological circuit mainly by two set of power switches at, i.e. first switch tube 122 and second switch 124, first switch
Pipe 122 is connect in the form of totem with second switch 124, is connected to the output 160 using intermediate point as output.Direct current
Source via the half-bridge topology circuit connection of interface arrangement 100 to bus, to realize that the power between DC power supply and bus is defeated
Enter/exports.
First switch tube 122 is the upper switches pipe in half-bridge topology circuit, and second switch 124 is half-bridge topology circuit
In lower switches pipe the switch for controlling upper down tube is passed through according to the power flow direction demand of input terminal 140 and output end 160
State, the adjustable voltage for flowing through interface arrangement 100 come actively realize active power adjust.Work as in route simultaneously and overcurrent occurs
Or when short trouble, the switching tube in half-bridge topology circuit can be turned off, and protection act be generated, to improve power-supply system
Safety.
Further, in interface arrangement 100, the first switch tube 122 and second switch 124 of half-bridge topology circuit
Type can according to actual use situation determine, can specifically choose switching diode, switching transistor and field-effect tube
Equal switch performances are good, the state rate of transformation of conducting and cut-off is fast, and small device is lost, to improve the efficiency and surely of power-supply system
It is qualitative.
Above-mentioned interface arrangement 100 is connected between DC power supply and bus, and interface arrangement receives the electric energy of DC power supply
Afterwards, output is realized to the power regulation between DC power supply and bus, is improved to bus after the processing of half-bridge topology circuit
The safety of power-supply system, and when multiple DC power supplies are connected on bus, it may be implemented between each DC power supply
Interconnection and power mutually help.
Fig. 2 is the module diagram of interface arrangement in another embodiment, as shown in Fig. 2, in one embodiment, interface
In device 100 input terminal 140, output end 160, first switch tube 122 and second switch 124 can respectively with above-mentioned implementation
Corresponding construction in example is identical.The half-bridge topology circuit of interface arrangement 100 further includes first diode D1 and the second diode D2；
First diode D1 is in parallel with first switch tube 122, and the second diode D2 is in parallel with second switch 144.
It specifically, can also include first diode D1 and the second second level in the half-bridge topology circuit of interface arrangement 100
Pipe D2, first diode D1 and the second diode D2 respectively parallel at 124 both ends of first switch tube 122 and second switch, lead to
It crosses first diode D1 and the second diode D2 rectifies interface arrangement 100.It is understood that half-bridge topology circuit
Specific structure can be configured according to the actual conditions of interface arrangement, the structure being not limited in the present embodiment, can be with
The devices such as other inductance, capacitor are set, for realizing functions such as filtering or pressure stabilizings, it is further provided the power supply product of power-supply system
Matter.
Fig. 3 is the structural schematic diagram of interface arrangement in one embodiment, as shown in figure 3, in one embodiment, interface dress
It sets 200 and includes input terminal 240, output end 260, first switch tube 222 and second switch 224, wherein first switch tube 222
It is field-effect tube with second switch 224, the source electrode (Source, abbreviation S) of first switch tube 222 is connect with input terminal 240, the
The drain electrode (Drain, abbreviation D) of one switching tube 222 is connect with output end 260；The source electrode and first switch tube of second switch 224
222 drain electrode connection, the drain electrode of second switch 224 are connect with input terminal 240.
Specifically, first switch tube 222 and second switch 224 can be field-effect tube in interface arrangement 200
(Field Effect Transistor, abbreviation FET), field-effect tube is common switch tube device, is widely used in switching
In circuit, has many advantages, such as that noise is small, low in energy consumption, dynamic range is big, is easily integrated, safety operation area field width.First switch tube
222 can specifically choose metal-oxide semiconductor (MOS) (Metal Oxide Semiconductor, abbreviation with second switch 224
MOS) field-effect tube.First switch tube 222 is connect in the form of totem with second switch 224, the source electrode of first switch tube 222
Drain electrode with second switch 224 is connected to the both ends of the DC power supply of input terminal 240, the drain electrode of first switch tube and the
The source electrode of two switching tubes 224 is connected, the bus using intermediate point as output to output end 260.According to the input of DC power supply
The output voltage of voltage and bus controls the switch state of first switch tube 222 and second switch 224, to realize docking
The adjusting of mouth device input-output power.It is understood that can also choose other in half-bridge topology circuit meets function
The device for power switching of demand as first switch tube 222 and second switch 224, imitate by the field being not limited in the present embodiment
Ying Guan.
In one embodiment, interface arrangement includes control unit, and control unit includes processor, memory, power supply pipe
Manage at least one of chip, digital quantity input/output interface and analog input and output interface.
Specifically, in interface arrangement, in addition to half-bridge topology circuit is as the main circuit for connecting DC power supply and bus, also
It may include control unit and other functional units, control unit is for realizing the control to work each section in interface arrangement
System and processing.Control unit can acquire half-bridge topology circuit and the trip information of other units, make operation and sentence
It is disconnected, and command adapted thereto is provided, corresponding units are acted on, to realize the control to interface arrangement.Control unit specifically can wrap
Include processor, memory, power management chip, digital quantity input/output interface and analog input and output interface with etc. devices
Part, wherein processor is used for for storing information data, power management chip to each list for carrying out data operation, memory
Member is powered, and digital quantity input/output interface and analog input and output interface are respectively used to transceiving digital signals and simulation
Signal, to realize the communication connection of other units in control unit and interface arrangement.
In one embodiment, above-mentioned interface arrangement further includes protection location；There is overcurrent in power-supply system in control unit
Or in the case where short circuit, control and protection unit disconnects first switch tube and/or second switch.
It specifically, can also include independent protection location in interface arrangement, protection location and control unit communicate to connect,
Parameter information on control unit real-time detection half-bridge topology circuit, when monitoring that there is a situation where overcurrent or short circuits in circuit
When, control unit can send control command to protection location, and first in control and protection unit disconnection half-bridge topology circuit opens
Pipe and/or second switch are closed, to realize the active protection in power-supply system, improves the safety of power-supply system.
In one embodiment, interface arrangement further includes communication unit and/or display unit；Control unit controls communication unit
Member and PERCOM peripheral communication, control unit control the data information of display unit DIU display interface unit.It can also be arranged in interface arrangement
There are communication unit and display unit, communication unit and display unit are communicated to connect with control unit.Communication unit can lead to
It crosses wired or wireless mode to be communicated with outside, realizes interface arrangement and external information exchange.Display unit specifically may be used
To include that display screen or projector etc. show display device, the parameter informations such as the operating status of interface arrangement can be shown to use
Family.
Fig. 4 is the structural schematic diagram of power-supply system in one embodiment, as shown in figure 4, in one embodiment, Yi Zhong electricity
Source system 10 includes DC power supply 300, bus 500 and above-mentioned interface arrangement 100；Wherein, DC power supply 300 passes through interface
Device 100 is connected on bus 500, and half-bridge topology circuit is used for the input-output power of control interface device 100.
Specifically, power-supply system 10 includes the interface arrangement in DC power supply 300, bus 500 and above-described embodiment
100, the input terminal 140 of interface arrangement 100 is connected with DC power supply 300, the output end 160 and bus 500 of interface arrangement 100
It is connected, DC power supply 300 is connected to bus via interface arrangement 100, to realize the power between DC power supply and bus
Input/output.It include first switch tube 122 and second switch 124, first switch tube 122 and the in half-bridge topology circuit
Two switching tubes 124 are connected in the form of totem, are connected to the output 160 using intermediate point as output.According to input terminal 140 with
And the power flow direction demand of output end 160 can be with by controlling the switch state of first switch tube 122 and second switch 124
The input-output power of control interface device 100, to realize to the power regulation between DC power supply 300 and bus 500.
Further, in power-supply system 10, in interface arrangement 100 first switch tube 122 of half-bridge topology circuit and
Second switch 124 can choose switching diode, switching transistor and field-effect tube constant power switching device.Bus 500
It generally can be DC master row, DC power supply 300 can be the DC suppling equipments such as battery or dc generator, DC power supply
The performance parameters such as 300 voltage and power can determine according to actual needs.It can also simultaneously include multiple straight in power-supply system
Galvanic electricity source 300 and interface arrangement 100, multiple DC power supplies 300 are connected on bus 500 by interface arrangement 100, with reality
Existing multiple DC power supplies 300 interconnect.
Fig. 5 is the structural schematic diagram of power-supply system in another embodiment, as shown in figure 5, in one embodiment, power supply
The quantity of the DC power supply 300 of system 20 be it is multiple, the quantity of interface arrangement 100 is multiple；Wherein, each DC power supply 300
Bus 500 is connected in parallel to by an interface arrangement 100.
It specifically, include multiple DC power supplies 300 in power-supply system 20, the particular number of DC power supply 300 can root
Determine that each DC power supply 300 is connected with an interface arrangement 100, multiple direct currents according to the actual demand of power-supply system 20
Power supply 300 is connected in parallel on by interface arrangement 100 on bus 500.Due to the performance parameter and work of each DC power supply 300
State is different, therefore there may be differences for the voltage of multiple DC power supplies 300 and power, and each interface arrangement 100 is according to its company
The voltage of the DC power supply 300 connect and the voltage of bus 500, are adjusted input-output power, to guarantee power supply system
The stabilization of voltage in system 20, multiple DC power supplies 300 are also interconnected by interface arrangement 100, to realize DC power supply 300
Between power mutually help.
In one embodiment, above-mentioned power-supply system 20 further includes power load 400, and power load 400 passes through load line
Road is connected on DC power supply 300.In power-supply system 20, the local that power load 400 is generally each DC power supply 300 is negative
It carries, power load 400 is specifically as follows the electrical equipments such as base station, and DC power supply 300 and power load 400 are to be connected in series, directly
Galvanic electricity source 300 is powered power load 400 connected to it, at the same power load 400 also with 100 company of series connection of interface arrangement
It connects, so that the voltage and power to power load 400 are adjusted.
In one embodiment, above-mentioned bus 500 includes line inductance, and interface arrangement 100 is filtered using line inductance
Wave.In power-supply system 20, bus 500 can specifically include positive and negative two DC master rows, and there are wired on the busbar of bus 500
Road inductance, since the half-bridge topology circuit in interface arrangement 100 is worked in the form of HF switch, there is no need in power supply system
Filter inductance is separately provided in system 20, the line inductance that interface arrangement 100 can use bus 500 is realized filter function, reduced
Voltage ripple in power-supply system 20 improves the efficiency and stability of power-supply system 20.
In one embodiment, above-mentioned DC power supply 300 is 48V DC power supply.DC power supply 300 can be constant current
Power supply unit, such as can use 48V low-voltage dc power supply, can specifically pass through dry cell, battery or DC generation
The DC power supply apparatus such as machine are realized.The low-voltage dc power supply of 48V is more universal in the communication medium use of power supply system at present, uses
48V DC power supply can well adapt to practical application.It is understood that the specific type and performance of DC power supply 3000 are joined
Number can determine according to actual needs, the 48V DC power supply being not limited in the present embodiment.
Above-mentioned power-supply system, is connected between DC power supply and bus by interface arrangement, and interface arrangement receives direct current
After the electric energy in source, output is realized to bus to the function between DC power supply and bus after the processing of half-bridge topology circuit
Rate is adjusted, and improves the safety of power-supply system, and when multiple DC power supplies are connected on bus, may be implemented each straight
Interconnection and power between galvanic electricity source are mutually helped.
Each technical characteristic of embodiment described above can be combined arbitrarily, for simplicity of description, not to above-mentioned reality
It applies all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not deposited
In contradiction, all should be considered as described in this specification.
The several embodiments of the application above described embodiment only expresses, the description thereof is more specific and detailed, but simultaneously
It cannot therefore be construed as limiting the scope of the patent.It should be pointed out that coming for those of ordinary skill in the art
It says, without departing from the concept of this application, various modifications and improvements can be made, these belong to the protection of the application
Range.Therefore, the scope of protection shall be subject to the appended claims for the application patent.
Claims (10)
1. a kind of interface arrangement, in power-supply system, the power-supply system to include DC power supply and bus, which is characterized in that
The interface arrangement includes input, output end and half-bridge topology circuit, and the input terminal is connect with the DC power supply, institute
It states output end to connect with the bus, the half-bridge topology circuit is used to control the input-output power of the interface arrangement；
Wherein, the half-bridge topology circuit includes first switch tube and second switch, the first switch tube with it is described defeated
It is in parallel to enter end, the second switch is connected between the input terminal and the first switch tube.
2. interface arrangement according to claim 1, which is characterized in that the half-bridge topology circuit further includes first diode
With the second diode；The first diode is in parallel with the first switch tube, second diode and the second switch
Pipe is in parallel.
3. interface arrangement according to claim 1, which is characterized in that the first switch tube and the second switch are
Field-effect tube, the source electrode of the first switch tube are connect with the input terminal, the drain electrode of the first switch tube and the output
End connection；The source electrode of the second switch is connect with the drain electrode of the first switch tube, the drain electrode of the second switch with
The input terminal connection.
4. interface arrangement according to claim 1, which is characterized in that the interface arrangement includes control unit, the control
Unit processed includes processor, memory, power management chip, digital quantity input/output interface and analog input and output interface
At least one of.
5. interface arrangement according to claim 4, which is characterized in that the interface arrangement further includes protection location；It is described
Control unit controls the protection location for the first switch tube in the case where overcurrent or short circuit occurs in the power-supply system
And/or the second switch disconnects.
6. interface arrangement according to claim 4, which is characterized in that the interface arrangement further include communication unit and/or
Display unit；Described control unit controls the communication unit and PERCOM peripheral communication, and described control unit controls the display unit
Show the data information of the interface arrangement.
7. a kind of power-supply system, which is characterized in that including any one of bus, DC power supply and the claims 1 to 6
The interface arrangement；
Wherein, the DC power supply is connected on the bus by the interface arrangement, and the half-bridge topology circuit is for controlling
Make the input-output power of the interface arrangement.
8. power-supply system according to claim 7, which is characterized in that the quantity of the DC power supply be it is multiple, it is described to connect
The quantity of mouth device is multiple；
Wherein, each DC power supply is connected in parallel to the bus by an interface arrangement.
9. power-supply system according to claim 7, which is characterized in that the bus includes line inductance, the interface dress
It sets and is filtered using the line inductance.
10. power-supply system according to claim 7, which is characterized in that further include power load, the power load is logical
Overload connection is on the DC power supply.
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| CN201910216688.XA CN109888768A (en) | 2019-03-21 | 2019-03-21 | Interface arrangement and power-supply system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910216688.XA CN109888768A (en) | 2019-03-21 | 2019-03-21 | Interface arrangement and power-supply system |
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| US20040123164A1 (en) * | 2002-12-21 | 2004-06-24 | Power-One Limited | Method and system for controlling and monitoring an array of point-of-load regulators |
| US20120043818A1 (en) * | 2010-08-18 | 2012-02-23 | Volterra Semiconductor Corporation | Switching Circuits For Extracting Power From An Electric Power Source And Associated Methods |
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