CN114069825A - Multi-output power direct current system - Google Patents
Multi-output power direct current system Download PDFInfo
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- CN114069825A CN114069825A CN202111264959.2A CN202111264959A CN114069825A CN 114069825 A CN114069825 A CN 114069825A CN 202111264959 A CN202111264959 A CN 202111264959A CN 114069825 A CN114069825 A CN 114069825A
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- 238000011105 stabilization Methods 0.000 claims description 17
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical group [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 9
- 238000004804 winding Methods 0.000 claims description 6
- 229910044991 metal oxide Inorganic materials 0.000 claims 1
- 150000004706 metal oxides Chemical class 0.000 claims 1
- 239000004065 semiconductor Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 3
- 238000010586 diagram Methods 0.000 description 2
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/061—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems for DC powered loads
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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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/08—Three-wire systems; Systems having more than three wires
- H02J1/084—Three-wire systems; Systems having more than three wires for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
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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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/08—Three-wire systems; Systems having more than three wires
- H02J1/084—Three-wire systems; Systems having more than three wires for selectively connecting the load or loads to one or several among a plurality of power lines or power sources
- H02J1/086—Three-wire systems; Systems having more than three wires for selectively connecting the load or loads to one or several among a plurality of power lines or power sources for providing alternative feeding paths between load or loads and source or sources when the main path fails
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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
- H02J1/00—Circuit arrangements for dc mains or dc distribution networks
- H02J1/10—Parallel operation of dc sources
- H02J1/102—Parallel operation of dc sources being switching converters
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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
- H02J9/00—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting
- H02J9/04—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source
- H02J9/06—Circuit arrangements for emergency or stand-by power supply, e.g. for emergency lighting in which the distribution system is disconnected from the normal source and connected to a standby source with automatic change-over, e.g. UPS systems
- H02J9/068—Electronic means for switching from one power supply to another power supply, e.g. to avoid parallel connection
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/22—Conversion of dc power input into dc power output with intermediate conversion into ac
- H02M3/24—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters
- H02M3/28—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac
- H02M3/325—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal
- H02M3/335—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/33569—Conversion of dc power input into dc power output with intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode to produce the intermediate ac using devices of a triode or a transistor type requiring continuous application of a control signal using semiconductor devices only having several active switching elements
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Business, Economics & Management (AREA)
- Emergency Management (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention provides a multi-output power direct current system, which comprises: the input end of the switch detection circuit is connected with 220V direct current, the output end of the switch control circuit is connected with the input ends of the load and the multi-path output voltage stabilizing module, the input end of the battery management circuit is connected with the output end of the switch control circuit, the output end of the battery management circuit is connected with the anode of the storage battery, the anode of the storage battery is connected with the input end of the detection switching circuit, the output end of the detection switching circuit is connected with the input end of the booster circuit, the output end of the booster circuit is electrified to the input ends of the load and the multi-path output voltage stabilizing module, the detection input end of the detection switching circuit is connected to the output end of the switch control circuit, direct currents with various voltage levels can be provided for direct current loads in an electric power system, a direct current power supply does not need to be additionally arranged, and in addition, overvoltage and undervoltage detection and power failure detection can be carried out on the direct current in the power supply process.
Description
Technical Field
The present invention relates to a dc system, and more particularly, to a multi-output power dc system.
Background
In an electric power system, a direct current system is required to supply power, for example, power consumption of a direct current screen, power consumption of various monitoring devices, and the like.
Therefore, in order to solve the above technical problems, it is necessary to provide a new technical means.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a multi-output power dc system, which can provide dc power with different voltage levels for a dc load in a power system, without an additional dc power supply, and can perform overvoltage, undervoltage and power failure detection on the dc power during power supply, and can realize almost uninterrupted power supply of the dc system, and the whole system has high stability and a simple structure.
The invention provides a multi-output power direct-current system which comprises a switch control circuit, a multi-output voltage stabilizing module, a storage battery, a battery management circuit, a booster circuit and a detection switching circuit, wherein the switch control circuit is connected with the multi-output voltage stabilizing module;
the input list of switch detection circuitry is connected in the 220V direct current, and switch control circuit's output is connected with the input of load and multiplexed output voltage stabilization module, battery management circuit's input is connected in switch control circuit's output, battery management circuit's output is connected with the positive pole of battery, the positive pole of battery is connected in the input that detects switching circuit, and the output that detects switching circuit is connected in boost circuit's input, boost circuit's output is to the input circular telegram of load and multiplexed output voltage stabilization module, the detection input that detects switching circuit is connected in switch control circuit's output.
Further, the multi-output voltage stabilizing module comprises a first voltage stabilizing module DC-DC I, a second voltage stabilizing module DC-DC II, a third voltage stabilizing module DC-DC III, a fourth voltage stabilizing module DC-DC IV, a resistor R5, a diode D2, a resistor R5, a resistor R6 and a capacitor C2;
one end of a resistor R5 is used as the input end of the multi-output voltage stabilization module and connected to the output end of the switch control circuit, the other end of the resistor R5 is connected to the anode of a diode D2, the cathode of the diode D2 is grounded through a capacitor C2, the cathode of a diode D2 is connected to the input end of the first voltage stabilization module DC-DC I through a resistor R6, and the output end of the first voltage stabilization module DC-DC I outputs 48V direct current;
the input end of the second voltage stabilizing module DC-DC II is connected with the output end of the first voltage stabilizing module DC-DC I, and the second voltage stabilizing module DC-DC II outputs 24V direct current;
the input end of the third voltage stabilizing module DC-DC III is connected with the output end of the second voltage stabilizing module DC-DC II, and the third voltage stabilizing module DC-DC III outputs 12V direct current;
the input end of the fourth voltage stabilizing module DC-DC IV is connected with the output end of the third voltage stabilizing module DC-DC III, and the fourth voltage stabilizing module DC-DC IV outputs 5V direct current.
Further, the switch control circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a voltage regulator tube DW1, a voltage regulator tube DW2, a capacitor C1, a PMOS tube Q1, a triode Q2 and a silicon chain D1;
the source electrode of the PMOS tube Q1 is used as the input end of the switch control circuit, the drain electrode of the PMOS tube Q1 is connected with the anode of the silicon chain D1, and the cathode of the silicon chain D1 is used as the output end of the switch control circuit;
the source electrode of the PMOS tube Q1 is connected to the negative electrode of the voltage-regulator tube DW1 through a resistor R1, the positive electrode of the voltage-regulator tube DW1 is connected to the negative electrode of the voltage-regulator tube DW2, the positive electrode of the voltage-regulator tube DW2 is grounded, the source electrode of the PMOS tube Q1 is connected to the grid electrode of the PMOS tube Q1 through a resistor R2, the grid electrode of the PMOS tube Q1 is connected to the collector electrode of the triode Q2 through a resistor R3, the emitter electrode of the triode Q2 is grounded, the base electrode of the triode Q2 is grounded through a capacitor C1, and the base electrode of the triode Q2 is connected to the negative electrode of the voltage-regulator tube DW2 through a resistor R4.
Further, the detection switching circuit comprises a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R1, a resistor R12, a resistor R13, a resistor R16, a PMOS tube Q3, a triode Q4, a triode Q5, a capacitor C4, a capacitor C3 and a voltage regulator DW 3;
the source electrode of a PMOS pipe Q3 is used as the input end of a detection switching circuit and connected to the positive electrode of a storage battery, the drain electrode of a PMOS pipe Q3 is used as the output end of the detection switching circuit, the source electrode of a PMOS pipe Q3 is connected to the grid electrode of a PMOS pipe Q3 through a resistor R9, the grid electrode of a PMOS pipe Q3 is connected to the collector electrode of a triode Q5 through a resistor R12, the emitter electrode of the triode Q5 is grounded, the base electrode of a triode Q5 is grounded through a capacitor C4, the base electrode of a triode Q5 is connected to the collector electrode of a triode Q4 through a resistor R11, and the emitter electrode of a triode Q4 is connected to the source electrode of a PMOS pipe Q3 through a resistor R8;
one end of a resistor R6 is used as a detection input end of a detection control circuit and connected to the drain electrode of a PMOS tube Q1, the other end of a resistor R6 is grounded through a resistor R10, a common connection point of the resistor R6 and the resistor R10 is connected with the negative electrode of a voltage regulator tube DW3, the positive electrode of the voltage regulator tube DW3 is grounded, a common connection point of the resistor R6 and the resistor R10 is connected to the base electrode of a triode Q4 through a resistor R7, and the base electrode of the triode Q4 is grounded after being connected in series through a resistor R16 and a capacitor C3.
Further, the booster circuit comprises an inverter circuit, an inverter controller, a transformer, a sixth voltage stabilizing module DC-DC VI and a controller power supply circuit;
the input end of the inverter circuit is connected with the output end of the detection switching circuit, the output end of the inverter circuit is connected with the primary winding of the transformer, the secondary winding of the transformer is connected with the input end of the sixth voltage stabilizing module DC-DC VI, the output end of the sixth voltage stabilizing module DC-DC VI supplies power to the input ends of the load and the multi-path output voltage stabilizing modules, the control output end of the inverter controller is connected with the control end of the inverter, the input end of the controller power supply circuit is connected with the anode of the storage battery, the output end of the controller power supply circuit supplies power to the inverter controller, and the control end of the controller power supply circuit is connected with the collector of the triode Q4.
Further, the power supply circuit of the controller comprises an NMOS transistor Q6, a resistor R13, a resistor R14, a resistor R15, a capacitor C5, a capacitor C6 and a fifth voltage stabilizing circuit V;
the drain electrode of an NMOS tube Q6 is used as the input end of a controller power supply circuit, the source electrode of an NMOS tube Q6 is connected in series with a resistor R15 through a resistor R14 and then is grounded, the common connection point of the resistor R15 and the resistor R14 is grounded through a capacitor C5, the common connection point of the resistor R15 and the resistor R14 is connected to the input end of a fifth voltage stabilizing circuit V, the output end of the fifth voltage stabilizing circuit V is grounded through a capacitor C6, the output end of the fifth voltage stabilizing circuit V supplies power to an inverter controller, the grid electrode of the NMOS tube Q6 is connected to one end of a resistor R13, and the other end of the resistor R13 is used as the control input end of the controller power supply circuit.
The invention has the beneficial effects that: the invention can provide direct current with various voltage grades for direct current loads in an electric power system without additionally arranging a direct current power supply, can detect direct current overvoltage and undervoltage and power failure in the power supply process, can realize almost uninterrupted power supply of the direct current system, and has high stability and simple structure of the whole system.
Drawings
The invention is further described below with reference to the following figures and examples:
FIG. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic diagram of a circuit embodying the present invention.
Detailed Description
The invention is described in further detail below with reference to the drawings of the specification:
the invention provides a multi-output power direct-current system which comprises a switch control circuit, a multi-output voltage stabilizing module, a storage battery, a battery management circuit, a booster circuit and a detection switching circuit, wherein the switch control circuit is connected with the multi-output voltage stabilizing module;
the input unit of the switch detection circuit is connected with 220V direct current, the output end of the switch control circuit is connected with the input ends of the load and the multi-path output voltage stabilization module, the input end of the battery management circuit is connected with the output end of the switch control circuit, the output end of the battery management circuit is connected with the anode of the storage battery, the anode of the storage battery is connected with the input end of the detection switching circuit, the output end of the detection switching circuit is connected with the input end of the booster circuit, the output end of the booster circuit is electrified to the input ends of the load and the multi-path output voltage stabilization module, and the detection input end of the detection switching circuit is connected with the output end of the switch control circuit; through the structure, can provide the direct current of multiple different voltage levels for the direct current load in the electric power system, need not additionally to set up DC power supply, and, can advance excessive pressure to the direct current in power supply process, undervoltage detection and outage detection, and can realize that direct current system is almost uninterrupted (almost uninterrupted means that the 220V main loop condition of cutting off the power supply appears, including excessive pressure, undervoltage and fault power failure, the reserve circuit that the battery is constituteed can in time cut into in the power supply, though have certain time gap (millisecond level), but the power consumption of direct current system is not influenced in this clearance), and entire system's stability is high, moreover, simple structure, and need not external controller to control in main supply circuit and the battery power supply switch, battery management circuit adopts current lithium battery management circuit.
In this embodiment, the multi-output voltage stabilizing module includes a first voltage stabilizing module DC-DC i, a second voltage stabilizing module DC-DC ii, a third voltage stabilizing module DC-DC iii, a fourth voltage stabilizing module DC-DC iv, a resistor R5, a diode D2, a resistor R5, a resistor R6, and a capacitor C2;
one end of a resistor R5 is used as the input end of the multi-output voltage stabilization module and connected to the output end of the switch control circuit, the other end of the resistor R5 is connected to the anode of a diode D2, the cathode of the diode D2 is grounded through a capacitor C2, the cathode of a diode D2 is connected to the input end of the first voltage stabilization module DC-DC I through a resistor R6, and the output end of the first voltage stabilization module DC-DC I outputs 48V direct current;
the input end of the second voltage stabilizing module DC-DC II is connected with the output end of the first voltage stabilizing module DC-DC I, and the second voltage stabilizing module DC-DC II outputs 24V direct current;
the input end of the third voltage stabilizing module DC-DC III is connected with the output end of the second voltage stabilizing module DC-DC II, and the third voltage stabilizing module DC-DC III outputs 12V direct current;
the input end of the fourth voltage stabilizing module DC-DCIV is connected with the output end of the third voltage stabilizing module DC-DCIII, and the fourth voltage stabilizing module DC-DCIV outputs 5V direct current, so that stable working power consumption can be provided for low-voltage power consumption equipment (such as various sensors, monitoring controllers and the like) through the structure, and the requirements of different application occasions are met, wherein the first voltage stabilizing module DC-DCI, the second voltage stabilizing module DC-DCII, the third voltage stabilizing module DC-DCIII and the fourth voltage stabilizing module DC-DCIV can be realized by adopting the existing voltage stabilizing chip and peripheral circuits, a user selects the voltage stabilizing chip according to actual requirements, and the principle and the structure of the voltage stabilizing module DC-DCIV are not repeated.
In this embodiment, the switch control circuit includes a resistor R1, a resistor R2, a resistor R3, a resistor R4, a voltage regulator DW1, a voltage regulator DW2, a capacitor C1, a PMOS transistor Q1, a triode Q2, and a silicon chain D1;
the source electrode of the PMOS tube Q1 is used as the input end of the switch control circuit, the drain electrode of the PMOS tube Q1 is connected with the anode of the silicon chain D1, and the cathode of the silicon chain D1 is used as the output end of the switch control circuit;
the source electrode of a PMOS tube Q1 is connected to the negative electrode of a voltage regulator tube DW1 through a resistor R1, the positive electrode of the voltage regulator tube DW1 is connected to the negative electrode of a voltage regulator tube DW2, the positive electrode of the voltage regulator tube DW2 is grounded, the source electrode of a PMOS tube Q1 is connected to the grid electrode of a PMOS tube Q1 through a resistor R2, the grid electrode of a PMOS tube Q1 is connected to the collector electrode of a triode Q2 through a resistor R3, the emitter electrode of the triode Q2 is grounded, the base electrode of a triode Q2 is grounded through a capacitor C1, the base electrode of a triode Q2 is connected to the negative electrode of a voltage regulator tube DW2 through a resistor R4, and through the structure, the voltage regulator tubes DW1 and DW2 are connected in series to form simple undervoltage and overvoltage detection, namely: when the voltage of 220V direct current is too low due to fluctuation, namely, undervoltage occurs, the voltage-regulator tube DW1 is cut off, the PMO tube Q1 is cut off, so that power supply of a main loop is cut off, and when the voltage is too high, the voltage-regulator tube DW1 and the voltage-regulator tube DW2 are simultaneously conducted, so that the triode Q2 is cut off, the PMOs tube Q1 is cut off, and power supply of a subsequent load is avoided.
In this embodiment, the detection switching circuit includes a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R1, a resistor R12, a resistor R13, a resistor R16, a PMOS transistor Q3, a triode Q4, a triode Q5, a capacitor C4, a capacitor C3, and a voltage regulator DW 3;
the source electrode of a PMOS pipe Q3 is used as the input end of a detection switching circuit and connected to the positive electrode of a storage battery, the drain electrode of a PMOS pipe Q3 is used as the output end of the detection switching circuit, the source electrode of a PMOS pipe Q3 is connected to the grid electrode of a PMOS pipe Q3 through a resistor R9, the grid electrode of a PMOS pipe Q3 is connected to the collector electrode of a triode Q5 through a resistor R12, the emitter electrode of the triode Q5 is grounded, the base electrode of a triode Q5 is grounded through a capacitor C4, the base electrode of a triode Q5 is connected to the collector electrode of a triode Q4 through a resistor R11, and the emitter electrode of a triode Q4 is connected to the source electrode of a PMOS pipe Q3 through a resistor R8;
one end of a resistor R6 is used as a detection input end of the detection control circuit and is connected to a drain electrode of a PMOS tube Q1, the other end of the resistor R6 is grounded through a resistor R10, a common connection point of a resistor R6 and a resistor R10 is connected with a negative electrode of a voltage regulator DW3, a positive electrode of the voltage regulator DW3 is grounded, a common connection point of a resistor R6 and a resistor R10 is connected to a base electrode of a triode Q4 through a resistor R7, a base electrode of a triode Q4 is connected in series with a capacitor C3 and then is grounded, wherein the PMOS tube Q3 is connected with the base electrode of the triode Q6 through a resistor R16 and a resistor C8672, like a PMOS tube Q1, the existing PMOS tube with higher withstand voltage is selected, when the PMOS tube Q1 is switched on, the resistor R6 and the resistor R6 form a voltage-dividing circuit and the voltage is limited through the resistor R6 and then is supplied to the base electrode of the triode Q6, at the moment, the base electrode of the triode Q6 is higher than the voltage of an emitter electrode (the triode Q6 is a P type triode Q6, the triode Q6 is cut off, the triode Q6 is not supplied with the power supply of the accumulator, when the PMOS transistor has no output, including over-voltage, under-voltage or 220V dc power failure, and so on, no voltage is output between the resistor R6 and the resistor R10, but due to the function of the capacitor C3, when the drain of the PMOS transistor is powered off by the capacitor C3, the capacitor C3 will maintain a short-time voltage state, and a discharge loop is formed by the positive electrode of the capacitor C3, the resistor R16, the resistor R7, the resistor R10 and the negative electrode of the capacitor C3, at this time, the base of the transistor Q4 will maintain a certain voltage and keep the transistor Q4 on for a certain time when the PMOS transistor Q1 is turned off, the time is used for buffering to prevent malfunction, when the voltage of the capacitor C3 drops, the transistor Q4 is turned on, at this time, the capacitor C4 is charged, before the voltage of the capacitor C4 reaches the base-emitter voltage of the transistor Q5, the power supply circuit of the controller is turned on, so that the inverter controller is started and initialized, when the triode Q5 is conducted and the PMOS tube Q3 is conducted, the inverter in the booster circuit enters a working state and then is boosted through the transformer, and the sixth voltage stabilizing module outputs 220V direct current after DC-DC VI processing.
In this embodiment, the boost circuit includes an inverter circuit, an inverter controller, a transformer, a sixth voltage stabilization module DC-DC vi, and a controller power supply circuit;
the input end of an inverter circuit is connected with the output end of a detection switching circuit, the output end of the inverter circuit is connected with a primary winding of a transformer, a secondary winding of the transformer is connected with the input end of a sixth voltage stabilizing module DC-DC VI, the output end of the sixth voltage stabilizing module DC-DC VI supplies power to the input ends of a load and a multi-path output voltage stabilizing module, the control output end of an inverter controller is connected with the control end of an inverter, the input end of a controller power supply circuit is connected with the anode of a storage battery, the output end of the controller power supply circuit supplies power to the inverter controller, the control end of the controller power supply circuit is connected with the collector of a triode Q4, wherein, the inverter is of the existing structure, an inverter composed of IGBTs is adopted, the inverter controller adopts the existing control chip, and the sixth voltage stabilizing module DC-DC VI adopts the existing DC-DC conversion circuit, through the structure, the direct current output by the storage battery can be converted into the stable 220V direct current and provided to the load and the multi-output voltage stabilizing module.
In this embodiment, the power supply circuit of the controller includes an NMOS transistor Q6, a resistor R13, a resistor R14, a resistor R15, a capacitor C5, a capacitor C6, and a fifth voltage regulator circuit v;
the drain electrode of an NMOS tube Q6 is used as the input end of a controller power supply circuit, the source electrode of an NMOS tube Q6 is grounded after being connected in series with a resistor R14 and a resistor R15, the common connection point of the resistor R15 and a resistor R14 is grounded through a capacitor C5, the common connection point of the resistor R15 and the resistor R14 is connected with the input end of a fifth voltage stabilizing circuit V, the output end of the fifth voltage stabilizing circuit V is grounded through a capacitor C6, the output end of the fifth voltage stabilizing circuit V supplies power to an inverter controller, the grid electrode of the NMOS tube Q6 is connected with one end of a resistor R13, the other end of the resistor R13 is used as the control input end of the controller power supply circuit, through the structure, the starting time of the inverter controller can be accurately controlled, the inverter controller is guaranteed to supply power stably and is independent of a multi-path output voltage stabilizing module, the fifth voltage stabilizing circuit adopts the existing DC-DC voltage stabilizing circuit, selection is carried out according to the working voltage of the inverter controller, such as LM2596, LM7809, and so on.
Finally, the above embodiments are only for illustrating the technical solutions of the present invention and not for limiting, although the present invention has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications or equivalent substitutions may be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all of them should be covered in the claims of the present invention.
Claims (6)
1. A multi-output power direct current system is characterized in that: the device comprises a switch control circuit, a multi-output voltage stabilization module, a storage battery, a battery management circuit, a booster circuit and a detection switching circuit;
the input list of switch detection circuitry is connected in the 220V direct current, and switch control circuit's output is connected with the input of load and multiplexed output voltage stabilization module, battery management circuit's input is connected in switch control circuit's output, battery management circuit's output is connected with the positive pole of battery, the positive pole of battery is connected in the input that detects switching circuit, and the output that detects switching circuit is connected in boost circuit's input, boost circuit's output is to the input circular telegram of load and multiplexed output voltage stabilization module, the detection input that detects switching circuit is connected in switch control circuit's output.
2. The multi-output power dc system of claim 1, wherein: the multi-path output voltage stabilizing module comprises a first voltage stabilizing module DC-DC I, a second voltage stabilizing module DC-DC II, a third voltage stabilizing module DC-DC III, a fourth voltage stabilizing module DC-DC IV, a resistor R5, a diode D2, a resistor R5, a resistor R6 and a capacitor C2;
one end of a resistor R5 is used as the input end of the multi-output voltage stabilization module and connected to the output end of the switch control circuit, the other end of the resistor R5 is connected to the anode of a diode D2, the cathode of the diode D2 is grounded through a capacitor C2, the cathode of a diode D2 is connected to the input end of the first voltage stabilization module DC-DC I through a resistor R6, and the output end of the first voltage stabilization module DC-DC I outputs 48V direct current;
the input end of the second voltage stabilizing module DC-DC II is connected with the output end of the first voltage stabilizing module DC-DC I, and the second voltage stabilizing module DC-DC II outputs 24V direct current;
the input end of the third voltage stabilizing module DC-DC III is connected with the output end of the second voltage stabilizing module DC-DC II, and the third voltage stabilizing module DC-DC III outputs 12V direct current;
the input end of the fourth voltage stabilizing module DC-DC IV is connected with the output end of the third voltage stabilizing module DC-DC III, and the fourth voltage stabilizing module DC-DC IV outputs 5V direct current.
3. The multi-output power dc system of claim 1, wherein: the switch control circuit comprises a resistor R1, a resistor R2, a resistor R3, a resistor R4, a voltage-regulator tube DW1, a voltage-regulator tube DW2, a capacitor C1, a PMOS tube Q1, a triode Q2 and a silicon chain D1;
the source electrode of the PMOS tube Q1 is used as the input end of the switch control circuit, the drain electrode of the PMOS tube Q1 is connected with the anode of the silicon chain D1, and the cathode of the silicon chain D1 is used as the output end of the switch control circuit;
the source electrode of the PMOS tube Q1 is connected to the negative electrode of the voltage-regulator tube DW1 through a resistor R1, the positive electrode of the voltage-regulator tube DW1 is connected to the negative electrode of the voltage-regulator tube DW2, the positive electrode of the voltage-regulator tube DW2 is grounded, the source electrode of the PMOS tube Q1 is connected to the grid electrode of the PMOS tube Q1 through a resistor R2, the grid electrode of the PMOS tube Q1 is connected to the collector electrode of the triode Q2 through a resistor R3, the emitter electrode of the triode Q2 is grounded, the base electrode of the triode Q2 is grounded through a capacitor C1, and the base electrode of the triode Q2 is connected to the negative electrode of the voltage-regulator tube DW2 through a resistor R4.
4. The multi-output power dc system of claim 3, wherein: the detection switching circuit comprises a resistor R6, a resistor R7, a resistor R8, a resistor R9, a resistor R10, a resistor R1, a resistor R12, a resistor R13, a resistor R16, a PMOS tube Q3, a triode Q4, a triode Q5, a capacitor C4, a capacitor C3 and a voltage regulator DW 3;
the source electrode of a PMOS pipe Q3 is used as the input end of a detection switching circuit and connected to the positive electrode of a storage battery, the drain electrode of a PMOS pipe Q3 is used as the output end of the detection switching circuit, the source electrode of a PMOS pipe Q3 is connected to the grid electrode of a PMOS pipe Q3 through a resistor R9, the grid electrode of a PMOS pipe Q3 is connected to the collector electrode of a triode Q5 through a resistor R12, the emitter electrode of the triode Q5 is grounded, the base electrode of a triode Q5 is grounded through a capacitor C4, the base electrode of a triode Q5 is connected to the collector electrode of a triode Q4 through a resistor R11, and the emitter electrode of a triode Q4 is connected to the source electrode of a PMOS pipe Q3 through a resistor R8;
one end of a resistor R6 is used as a detection input end of a detection control circuit and connected to the drain electrode of a PMOS tube Q1, the other end of a resistor R6 is grounded through a resistor R10, a common connection point of the resistor R6 and the resistor R10 is connected with the negative electrode of a voltage regulator tube DW3, the positive electrode of the voltage regulator tube DW3 is grounded, a common connection point of the resistor R6 and the resistor R10 is connected to the base electrode of a triode Q4 through a resistor R7, and the base electrode of the triode Q4 is grounded after being connected in series through a resistor R16 and a capacitor C3.
5. The multi-output power dc system of claim 4, wherein: the booster circuit comprises an inverter circuit, an inverter controller, a transformer, a sixth voltage stabilizing module DC-DC VI and a controller power supply circuit;
the input end of the inverter circuit is connected with the output end of the detection switching circuit, the output end of the inverter circuit is connected with the primary winding of the transformer, the secondary winding of the transformer is connected with the input end of the sixth voltage stabilizing module DC-DC VI, the output end of the sixth voltage stabilizing module DC-DC VI supplies power to the input ends of the load and the multi-path output voltage stabilizing modules, the control output end of the inverter controller is connected with the control end of the inverter, the input end of the controller power supply circuit is connected with the anode of the storage battery, the output end of the controller power supply circuit supplies power to the inverter controller, and the control end of the controller power supply circuit is connected with the collector of the triode Q4.
6. The multiple-output power dc system of claim 5, wherein: the power supply circuit of the controller comprises an NMOS (N-channel metal oxide semiconductor) tube Q6, a resistor R13, a resistor R14, a resistor R15, a capacitor C5, a capacitor C6 and a fifth voltage stabilizing circuit V;
the drain electrode of an NMOS tube Q6 is used as the input end of a controller power supply circuit, the source electrode of an NMOS tube Q6 is connected in series with a resistor R15 through a resistor R14 and then is grounded, the common connection point of the resistor R15 and the resistor R14 is grounded through a capacitor C5, the common connection point of the resistor R15 and the resistor R14 is connected to the input end of a fifth voltage stabilizing circuit V, the output end of the fifth voltage stabilizing circuit V is grounded through a capacitor C6, the output end of the fifth voltage stabilizing circuit V supplies power to an inverter controller, the grid electrode of the NMOS tube Q6 is connected to one end of a resistor R13, and the other end of the resistor R13 is used as the control input end of the controller power supply circuit.
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| CN202111264959.2A CN114069825A (en) | 2021-10-28 | 2021-10-28 | Multi-output power direct current system |
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Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204068198U (en) * | 2014-09-26 | 2014-12-31 | 深圳市伊爱高新技术开发有限公司 | A kind of over under-voltage protection circuit of automatic support different electrical power system |
| CN206922420U (en) * | 2017-05-12 | 2018-01-23 | 广州视琨电子科技有限公司 | A kind of over-and under-voltage protection circuit |
| WO2018049955A1 (en) * | 2016-09-14 | 2018-03-22 | 深圳源创智能照明有限公司 | Solar street light control system |
| CN109687571A (en) * | 2018-12-29 | 2019-04-26 | 国家电网有限公司 | Electric power 48V direct current supply control system |
| CN211744132U (en) * | 2020-04-29 | 2020-10-23 | 重庆步航科技有限公司 | Intelligent control system for uninterrupted power supply |
| CN211860608U (en) * | 2019-12-31 | 2020-11-03 | 重庆绿色科技开发（集团）有限公司 | Intelligent control system for multi-color temperature LED street lamp |
| CN212462818U (en) * | 2020-05-21 | 2021-02-02 | 深圳创维－Rgb电子有限公司 | Direct current protection control circuit |
| CN112421755A (en) * | 2020-10-30 | 2021-02-26 | 国家电网有限公司 | Power supply system for electric power monitoring based on Internet of things |
| CN112952979A (en) * | 2020-12-31 | 2021-06-11 | 重庆伟仕达电子有限公司 | Low-voltage direct-current redundant power supply control system |
| CN214069659U (en) * | 2020-12-31 | 2021-08-27 | 重庆伟仕达电子有限公司 | DC UPS power supply |
| CN214069805U (en) * | 2020-12-24 | 2021-08-27 | 重庆伟仕达电子有限公司 | Front-end protection device for switching power supply |
| CN214150844U (en) * | 2020-12-23 | 2021-09-07 | 三峡大学 | Insulator leakage current monitoring system |
| CN217849247U (en) * | 2021-10-28 | 2022-11-18 | 国家电网有限公司 | Electric power direct current output control system |
-
2021
- 2021-10-28 CN CN202111264959.2A patent/CN114069825A/en active Pending
Patent Citations (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204068198U (en) * | 2014-09-26 | 2014-12-31 | 深圳市伊爱高新技术开发有限公司 | A kind of over under-voltage protection circuit of automatic support different electrical power system |
| WO2018049955A1 (en) * | 2016-09-14 | 2018-03-22 | 深圳源创智能照明有限公司 | Solar street light control system |
| CN206922420U (en) * | 2017-05-12 | 2018-01-23 | 广州视琨电子科技有限公司 | A kind of over-and under-voltage protection circuit |
| CN109687571A (en) * | 2018-12-29 | 2019-04-26 | 国家电网有限公司 | Electric power 48V direct current supply control system |
| CN211860608U (en) * | 2019-12-31 | 2020-11-03 | 重庆绿色科技开发（集团）有限公司 | Intelligent control system for multi-color temperature LED street lamp |
| CN211744132U (en) * | 2020-04-29 | 2020-10-23 | 重庆步航科技有限公司 | Intelligent control system for uninterrupted power supply |
| CN212462818U (en) * | 2020-05-21 | 2021-02-02 | 深圳创维－Rgb电子有限公司 | Direct current protection control circuit |
| CN112421755A (en) * | 2020-10-30 | 2021-02-26 | 国家电网有限公司 | Power supply system for electric power monitoring based on Internet of things |
| CN214150844U (en) * | 2020-12-23 | 2021-09-07 | 三峡大学 | Insulator leakage current monitoring system |
| CN214069805U (en) * | 2020-12-24 | 2021-08-27 | 重庆伟仕达电子有限公司 | Front-end protection device for switching power supply |
| CN112952979A (en) * | 2020-12-31 | 2021-06-11 | 重庆伟仕达电子有限公司 | Low-voltage direct-current redundant power supply control system |
| CN214069659U (en) * | 2020-12-31 | 2021-08-27 | 重庆伟仕达电子有限公司 | DC UPS power supply |
| CN217849247U (en) * | 2021-10-28 | 2022-11-18 | 国家电网有限公司 | Electric power direct current output control system |
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