CN204304808U - A kind of capacitance-resistance voltage reduction circuit - Google Patents

A kind of capacitance-resistance voltage reduction circuit Download PDF

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Publication number
CN204304808U
CN204304808U CN201420839645.XU CN201420839645U CN204304808U CN 204304808 U CN204304808 U CN 204304808U CN 201420839645 U CN201420839645 U CN 201420839645U CN 204304808 U CN204304808 U CN 204304808U
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CN
China
Prior art keywords
circuit
resistance
electric capacity
triode
diode
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Expired - Fee Related
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CN201420839645.XU
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Chinese (zh)
Inventor
段军红
常蓬彬
马世伟
李方军
张华峰
张小东
衡飞
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GANSU LUTENG ELECTRONIC TECHNOLOGY Co Ltd
State Grid Gansu Electric Power Co Ltd
Gansu Tongxing Intelligent Technology Development Co Ltd
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GANSU LUTENG ELECTRONIC TECHNOLOGY Co Ltd
State Grid Gansu Electric Power Co Ltd
Gansu Tongxing Intelligent Technology Development Co Ltd
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Priority to CN201420839645.XU priority Critical patent/CN204304808U/en
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Publication of CN204304808U publication Critical patent/CN204304808U/en
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Abstract

The utility model relates to non-isolated accessory power supply technical field, disclose a kind of capacitance-resistance voltage reduction circuit, it comprises antisurge leadage circuit, half-wave rectifying circuit, linear voltage-stabilizing circuit, soft starting circuit is provided with between described half-wave rectifying circuit and linear stable circuit, described half-wave rectifying circuit is additional capacitor charge-discharge circuit, and described linear voltage-stabilizing circuit is made up of constant-current source mu balanced circuit and the first triode, the 6th electric capacity; Alternating current is successively through described antisurge leadage circuit, half-wave rectifying circuit, soft starting circuit, linear stable circuit, described antisurge leadage circuit, half-wave rectifying circuit, soft starting circuit eliminate the surge current in circuit, linear voltage-stabilizing circuit carries out step-down constant current output electric current, provides stable, reliable power supply to load.This circuit forms in the mode of discrete component, more high pressure resistant than integrated electronic component, more can adapt to particular surroundings, and after one of them components and parts breaks down, change easy, maintenance cost is low.

Description

A kind of capacitance-resistance voltage reduction circuit
Technical field
The utility model relates to non-isolated accessory power supply technical field, specifically a kind of high reliability capacitance-resistance voltage reduction circuit be made up of discrete component.
Background technology
Now commercially Switching Power Supply is numerous, capacitance-resistance voltage reduction circuit is as non-isolated accessory power supply, utilize the logical AC characteristic of electric capacity to transmit electric current, its circuit, based on the principle of closed loop feedback, utilizes the energy of break-make control store in inductance or electric capacity of HF switch pipe, but its topological structure is obviously too complicated, be made up of numerous integrated electronic components, there is problem in certain in integrated electronic component, and whole power-supply system is by cisco unity malfunction, and the cost changing spare part is higher.
Utility model content
The purpose of this utility model is to provide a kind of capacitance-resistance voltage reduction circuit, problem is there is once certain in integrated electronic component to solve the capacitance-resistance voltage reduction circuit be made up of integrated electronic component, whole power-supply system, by cisco unity malfunction, changes the problem that the cost of spare part is higher.
For solving the problems of the technologies described above, this novel taked technical scheme is:
A kind of capacitance-resistance voltage reduction circuit, it comprises antisurge leadage circuit, half-wave rectifying circuit, linear voltage-stabilizing circuit, soft starting circuit is provided with between described half-wave rectifying circuit and linear stable circuit, described half-wave rectifying circuit is additional capacitor charge-discharge circuit, and described linear voltage-stabilizing circuit is made up of constant-current source mu balanced circuit and the first triode, the 6th electric capacity; Described antisurge leadage circuit is connected with ac power input end, the output of described antisurge leadage circuit is connected with the input of described half-wave rectifying circuit, the output of described half-wave rectifying circuit is connected with the input of described soft starting circuit, and be connected with the input of the described linear voltage-stabilizing circuit output of described linear voltage-stabilizing circuit of the output of described soft starting circuit is connected with lead-out terminal; Alternating current is successively through described antisurge leadage circuit, half-wave rectifying circuit, soft starting circuit, linear stable circuit, described antisurge leadage circuit, half-wave rectifying circuit, soft starting circuit eliminate the surge current in circuit, linear voltage-stabilizing circuit carries out step-down constant current output electric current, provides stable, reliable power supply to load.
As further improvement of the utility model, described antisurge leadage circuit by being serially connected with the 3rd resistance of AC power zero line input, the first inductance, be parallel to the 4th piezo-resistance between AC power live wire, zero line input, the second filter capacitor forms, the other end of described first inductance is connected with the first electric capacity, and the first bleeder resistance is connected in parallel on the two ends of described first electric capacity; Described 3rd resistance, the first inductance have Antisurge current effect, described 4th piezo-resistance, the second filter capacitor enhance the stability of electric current, the energy that first bleeder resistance can be released in certain hour on described first electric capacity after power cut-off, improves the safety and reliability of circuit.
Further improve as of the present utility model, the resistance of described first bleeder resistance is 5-9 ohm.
Further improve as of the present utility model, described half-wave rectifying circuit is by the first diode, second diode, 6th diode, 7th diode, 5th resistance, 8th resistance, 3rd electric capacity, 5th electric capacity, 4th triode is formed, one end of described 8th resistance and one end of described first resistance, the positive pole of described first diode, the negative pole of described second diode is connected, and the other end of described 8th resistance is connected with the base stage of described 4th triode, the grounded collector of described 4th triode, the emitter stage of described 4th triode and the positive pole of described second diode, one end of described 5th electric capacity is connected, the other end of described 5th electric capacity and the positive pole of described 6th diode, the negative pole of described 7th diode is connected, the plus earth of described 7th diode, the negative pole of described 6th diode and the negative pole of described first diode, one end of described 3rd electric capacity is connected, the other end ground connection of described 3rd electric capacity, and described 5th resistor coupled in parallel is at the two ends of described 3rd electric capacity, when current signal is when exchanging negative half period, electric current is charged by the 5th electric capacity described in described 7th diode, the second diode pair, when current signal transfers the positive half cycle of interchange to, described 4th triode ON, energy stored by described 5th electric capacity is by described 6th diode, load and described 4th triode release, and described 5th resistance can be released in certain hour the energy on described 3rd electric capacity after power cut-off, the characteristic that the existing halfwave rectifier of described half-wave rectifying circuit easily processes altogether, can export again the electric current close to full-wave rectifying type.
Further improve as of the present utility model, described soft starting circuit is by the second triode, second resistance, 7th resistance, 3rd Zener diode, 4th electric capacity is formed, one end of described 7th resistance and one end of described 3rd electric capacity, the colelctor electrode of the second triode is connected, the other end of described 7th resistance and the base stage of described second triode, one end of 4th electric capacity is connected, the other end ground connection of described 4th electric capacity, between the colelctor electrode that described second resistance is connected to described second triode and emitter stage, the emitter stage of described second triode is connected with the negative pole of described 3rd Zener diode, the plus earth of described 3rd Zener diode, in the moment of power on circuitry, described second resistance suppresses the surge current in circuit, after described 4th capacitor charging to certain value as current-limiting resistance, described second triode saturation conduction, described second resistance is shorted, and the lower power consumption of circuit enhances the reliability of circuit.
Further improve as of the present utility model, the resistance of described second resistance is 100-600 ohm.
Further improve as of the present utility model, described linear voltage-stabilizing circuit is by constant-current source mu balanced circuit and the first triode, 6th electric capacity composition, described constant-current source mu balanced circuit is by the 3rd triode, 4th Zener diode, 5th diode, 8th Zener diode, 6th resistance, 9th resistance, 7th electric capacity composition, the negative pole of described 4th Zener diode and the negative pole of described 3rd Zener diode, one end of 6th resistance, the colelctor electrode of the first triode is connected, and the positive pole of described 4th Zener diode is connected with the positive pole of described 5th diode, the negative pole of described 5th diode and one end of described 9th resistance, the base stage of the 3rd triode is connected, the other end ground connection of described 9th resistance, and the other end of described 6th resistance is connected with the emitter stage of described 3rd triode, the colelctor electrode of described 3rd triode and the negative pole of described 8th Zener diode, one end of 7th electric capacity, the base stage of the first triode is connected, and the emitter stage of described first triode is connected with one end of described 6th electric capacity, is connected with one end of lead-out terminal, the positive pole of described 8th Zener diode, the other end of the 6th electric capacity, the other end ground connection of the 7th electric capacity, is connected with the other end of lead-out terminal, described linear voltage-stabilizing circuit provides stable power supply for load, resists surge current.
Further improve as of the present utility model, high-voltage three-pole pipe all selected by described first triode, the 3rd triode.
The beneficial effects of the utility model are:
(1) this circuit forms in the mode of discrete component, more high pressure resistant than integrated electronic component, more can adapt to particular surroundings, and after one of them components and parts breaks down, change easy, maintenance cost is low;
(2) by antisurge leadage circuit and soft starting circuit surge current suppression, avoid surge current on the impact of the performance of load, soft starting circuit can be increased work efficiency and reliability simultaneously;
(3) by increasing charging capacitor, improve the ability of circuit output current;
(4) the utility model in use, and withstand voltage by changing filter capacitor, piezo-resistance is withstand voltage, withstand voltage and the capacity of ac buck electric capacity, the voltage stabilizing numerical value of Zener diode on constant-current source circuit, just can at interchange 110V, 220V, power taking in 380V system, output voltage and output current all can be changed, simple to operate, and volume is little, the scope of application is large, practical.
Accompanying drawing explanation
Fig. 1 is the utility model structured flowchart;
The utility model circuit theory diagrams during Fig. 2;
In figure: 1, antisurge leadage circuit, 2, half-wave rectifying circuit, 3, soft starting circuit, 4, linear stable circuit.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.
A kind of capacitance-resistance voltage reduction circuit as shown in Figure 1 and Figure 2, it comprises antisurge leadage circuit 1, half-wave rectifying circuit 2, linear voltage-stabilizing circuit 4, it is characterized in that: between half-wave rectifying circuit 2 and linear stable circuit 4, be provided with soft starting circuit 3, half-wave rectifying circuit 2 is additional capacitor charge-discharge circuit, and linear voltage-stabilizing circuit 4 is made up of constant-current source mu balanced circuit and the first triode Q1, the 6th electric capacity C6; Antisurge leadage circuit 1 is connected with ac power input end, the output of antisurge leadage circuit 1 is connected with the input of half-wave rectifying circuit 2, the output of half-wave rectifying circuit is connected with the input of soft starting circuit 3, and be connected with the input of linear voltage-stabilizing circuit 4 output of linear voltage-stabilizing circuit 4 of the output of soft starting circuit 3 is connected with lead-out terminal; Alternating current is successively through antisurge leadage circuit 1, half-wave rectifying circuit 2, soft starting circuit 3, linear stable circuit 4, antisurge leadage circuit 1, half-wave rectifying circuit 2, soft starting circuit 3 eliminate the surge current in circuit, linear voltage-stabilizing circuit 4 carries out step-down constant current output electric current, provides stable, reliable power supply to load.
Antisurge leadage circuit 1 by being serially connected with the 3rd resistance R3 of AC power zero line input, the first inductance L 1, the 4th piezo-resistance R4, the second filter capacitor C2 be parallel between AC power live wire, zero line input form, the other end of the first inductance L 1 is connected with the first electric capacity C1, and the first bleeder resistance R1 is connected in parallel on the two ends of the first electric capacity C1; 3rd resistance R3, the first inductance L 1 have Antisurge current effect, 4th piezo-resistance R4, the second filter capacitor C2 enhance the stability of electric current, the energy that first bleeder resistance R1 can release in certain hour on the first electric capacity C1 after power cut-off, improves the safety and reliability of circuit.
The resistance of the first bleeder resistance R1 is 5-9 ohm.
Half-wave rectifying circuit 2 is by the first diode D1, second diode D2, 6th diode D6, 7th diode D7, 5th resistance R5, 8th resistance R8, 3rd electric capacity C3, 5th electric capacity C5, 4th triode Q4 is formed, one end of the 8th resistance R8 and one end of the first resistance R1, the positive pole of the first diode D1, the negative pole of the second diode D2 is connected, and the other end of the 8th resistance R8 is connected with the base stage of the 4th triode Q4, the grounded collector of the 4th triode Q4, the emitter stage of the 4th triode Q4 and the positive pole of the second diode D2, one end of 5th electric capacity C5 is connected, the other end of the 5th electric capacity C5 and the positive pole of the 6th diode D6, the negative pole of the 7th diode D7 is connected, the plus earth of the 7th diode D7, the negative pole of the 6th diode D6 and the negative pole of the first diode D1, one end of 3rd electric capacity C3 is connected, the other end ground connection of the 3rd electric capacity C3, and the 5th resistance R5 is connected in parallel on the two ends of the 3rd electric capacity C3, and when current signal is when exchanging negative half period, electric current is by the 7th diode D7, second diode D2 charges to the 5th electric capacity C5, when current signal transfers the positive half cycle of interchange to, and the 4th triode Q4 conducting, the energy stored by the 5th electric capacity R5 is by the 6th diode D6, load and the 4th triode Q4 discharge, the energy that the 5th resistance R5 can release in certain hour on the 3rd electric capacity C3 after power cut-off, the characteristic that the existing halfwave rectifier of half-wave rectifying circuit 2 easily processes altogether, can export again the electric current close to full-wave rectifying type.
Soft starting circuit 3 is by the second triode Q2, second resistance R2, 7th resistance R7, 3rd Zener diode D3, 4th electric capacity C4 is formed, one end of 7th resistance R7 and one end of the 3rd electric capacity C3, the colelctor electrode of the second triode Q2 is connected, the other end of the 7th resistance R7 and the base stage of the second triode Q2, one end of 4th electric capacity C4 is connected, the other end ground connection of the 4th electric capacity C4, between the colelctor electrode that second resistance R2 is connected to the second triode Q2 and emitter stage, the emitter stage of the second triode Q2 is connected with the negative pole of the 3rd Zener diode D3, the plus earth of the 3rd Zener diode D3, in the moment of power on circuitry, the second resistance R2 suppresses the surge current in circuit, after the 4th electric capacity C4 is charged to certain value as current-limiting resistance, second triode Q2 saturation conduction, second resistance R2 is shorted, and the lower power consumption of circuit enhances the reliability of circuit.
The resistance of the second resistance R2 is 100-600 ohm.
Linear voltage-stabilizing circuit 4 is by constant-current source mu balanced circuit and the first triode Q1, 6th electric capacity C6 forms, and constant-current source mu balanced circuit is by the 3rd triode Q3, 4th Zener diode D4, 5th diode D5, 8th Zener diode D8, 6th resistance R6, 9th resistance R9, 7th electric capacity C7 forms, the negative pole of the 4th Zener diode D4 and the negative pole of the 3rd Zener diode D3, one end of 6th resistance R6, the colelctor electrode of the first triode Q1 is connected, and the positive pole of the 4th Zener diode D4 is connected with the positive pole of the 5th diode D5, the negative pole of the 5th diode D5 and one end of the 9th resistance D9, the base stage of the 3rd triode Q3 is connected, the other end ground connection of the 9th resistance R9, and the other end of the 6th resistance R6 is connected with the emitter stage of the 3rd triode Q3, the colelctor electrode of the 3rd triode Q3 and the negative pole of the 8th Zener diode D8, one end of 7th electric capacity C7, the base stage of the first triode Q1 is connected, and the emitter stage of the first triode Q1 is connected with one end of the 6th electric capacity C6, is connected with one end of lead-out terminal, the positive pole of the 8th Zener diode D8, the other end of the 6th electric capacity C6, the other end ground connection of the 7th electric capacity C7, is connected with the other end of lead-out terminal, linear voltage-stabilizing circuit 4 provides stable power supply for load, resists surge current.
First triode Q1, the 3rd triode Q3 all select high-voltage three-pole pipe.
The utility model, can regulation output voltage and output current by changing the components and parts of different model, can be used for the power taking of 110V, 220V, 380V alternating current, for load provides stable, reliable power supply.

Claims (8)

1. a capacitance-resistance voltage reduction circuit, it comprises antisurge leadage circuit (1), half-wave rectifying circuit (2), linear voltage-stabilizing circuit (4), it is characterized in that: between described half-wave rectifying circuit (2) and linear stable circuit (4), be provided with soft starting circuit (3), described half-wave rectifying circuit (2) is additional capacitor charge-discharge circuit, and described linear voltage-stabilizing circuit (4) is made up of constant-current source mu balanced circuit and the first triode (Q1), the 6th electric capacity (C6); Described antisurge leadage circuit (1) is connected with ac power input end, the output of described antisurge leadage circuit (1) is connected with the input of described half-wave rectifying circuit (2), the output of described half-wave rectifying circuit is connected with the input of described soft starting circuit (3), and be connected with the input of described linear voltage-stabilizing circuit (4) output of described linear voltage-stabilizing circuit (4) of the output of described soft starting circuit (3) is connected with lead-out terminal; Alternating current is successively through described antisurge leadage circuit (1), half-wave rectifying circuit (2), soft starting circuit (3), linear stable circuit (4), surge current in described antisurge leadage circuit (1), half-wave rectifying circuit (2), soft starting circuit (3) elimination circuit, linear voltage-stabilizing circuit (4) carries out step-down constant current output electric current, provides stable, reliable power supply to load.
2. capacitance-resistance voltage reduction circuit according to claim 1, it is characterized in that: described antisurge leadage circuit (1) by being serially connected with the 3rd resistance (R3) of AC power zero line input, the first inductance (L1), be parallel to the 4th piezo-resistance (R4) between AC power live wire, zero line input, the second filter capacitor (C2) forms, the other end of described first inductance (L1) is connected with the first electric capacity (C1), and the first bleeder resistance (R1) is connected in parallel on the two ends of described first electric capacity (C1); Described 3rd resistance (R3), the first inductance (L1) have Antisurge current effect, described 4th piezo-resistance (R4), the second filter capacitor (C2) enhance the stability of electric current, and the first bleeder resistance (R1) can be released in certain hour the energy on described first electric capacity (C1) after power cut-off.
3. capacitance-resistance voltage reduction circuit according to claim 2, is characterized in that: the resistance of described first bleeder resistance (R1) is 5-9 ohm.
4. capacitance-resistance voltage reduction circuit according to claim 1 and 2, it is characterized in that: described half-wave rectifying circuit (2) is by the first diode (D1), second diode (D2), 6th diode (D6), 7th diode (D7), 5th resistance (R5), 8th resistance (R8), 3rd electric capacity (C3), 5th electric capacity (C5), 4th triode (Q4) is formed, described one end of 8th resistance (R8) and one end of described first resistance (R1), the positive pole of the first diode (D1), the negative pole of described second diode (D2) is connected, the other end of described 8th resistance (R8) is connected with the base stage of described 4th triode (Q4), the grounded collector of described 4th triode (Q4), the described emitter stage of the 4th triode (Q4) and the positive pole of described second diode (D2), one end of described 5th electric capacity (C5) is connected, the other end of described 5th electric capacity (C5) and the positive pole of described 6th diode (D6), the negative pole of described 7th diode (D7) is connected, the plus earth of described 7th diode (D7), the described negative pole of the 6th diode (D6) and the negative pole of described first diode (D1), one end of described 3rd electric capacity (C3) is connected, the other end ground connection of described 3rd electric capacity (C3), described 5th resistance (R5) is connected in parallel on the two ends of described 3rd electric capacity (C3), when current signal is when exchanging negative half period, electric current is by described 7th diode (D7), second diode (D2) charges to described 5th electric capacity (C5), when current signal transfers the positive half cycle of interchange to, described 4th triode (Q4) conducting, energy stored by described 5th electric capacity (R5) is by described 6th diode (D6), load and described 4th triode (Q4) release, described 5th resistance (R5) can be released in certain hour the energy on described 3rd electric capacity (C3) after power cut-off, described half-wave rectifying circuit (2) exports the electric current close to full-wave rectifying type.
5. capacitance-resistance voltage reduction circuit according to claim 4, it is characterized in that: described soft starting circuit (3) is by the second triode (Q2), second resistance (R2), 7th resistance (R7), 3rd Zener diode (D3), 4th electric capacity (C4) is formed, one end of described 7th resistance (R7) and one end of described 3rd electric capacity (C3), the colelctor electrode of the second triode (Q2) is connected, the described other end of the 7th resistance (R7) and the base stage of described second triode (Q2), one end of 4th electric capacity (C4) is connected, the other end ground connection of described 4th electric capacity (C4), between the colelctor electrode that described second resistance (R2) is connected to described second triode (Q2) and emitter stage, the emitter stage of described second triode (Q2) is connected with the negative pole of described 3rd Zener diode (D3), the plus earth of described 3rd Zener diode (D3), in the moment of power on circuitry, described second resistance (R2) suppresses the surge current in circuit as current-limiting resistance, after described 4th electric capacity (C4) is charged to certain value, described second triode (Q2) saturation conduction, described second resistance (R2) is shorted, the lower power consumption of circuit, enhances the reliability of circuit.
6. capacitance-resistance voltage reduction circuit according to claim 5, is characterized in that: the resistance of described second resistance (R2) is 100-600 ohm.
7. according to capacitance-resistance voltage reduction circuit according to claim 5, it is characterized in that: described linear voltage-stabilizing circuit (4) is by constant-current source mu balanced circuit and the first triode (Q1), 6th electric capacity (C6) composition, described constant-current source mu balanced circuit is by the 3rd triode (Q3), 4th Zener diode (D4), 5th diode (D5), 8th Zener diode (D8), 6th resistance (R6), 9th resistance (R9), 7th electric capacity (C7) composition, the negative pole of described 4th Zener diode (D4) and the negative pole of described 3rd Zener diode (D3), one end of 6th resistance (R6), the colelctor electrode of the first triode (Q1) is connected, the positive pole of described 4th Zener diode (D4) is connected with the positive pole of described 5th diode (D5), the negative pole of described 5th diode (D5) and one end of described 9th resistance (D9), the base stage of the 3rd triode (Q3) is connected, the other end ground connection of described 9th resistance (R9), the other end of described 6th resistance (R6) is connected with the emitter stage of described 3rd triode (Q3), the colelctor electrode of described 3rd triode (Q3) and the negative pole of described 8th Zener diode (D8), one end of 7th electric capacity (C7), the base stage of the first triode (Q1) is connected, the emitter stage of described first triode (Q1) is connected with one end of described 6th electric capacity (C6), be connected with one end of lead-out terminal, the positive pole of described 8th Zener diode (D8), the other end of the 6th electric capacity (C6), the other end ground connection of the 7th electric capacity (C7), be connected with the other end of lead-out terminal, described linear voltage-stabilizing circuit (4) provides stable power supply for load, resists surge current.
8. capacitance-resistance voltage reduction circuit according to claim 7, is characterized in that: described first triode (Q1), the 3rd triode (Q3) all select high-voltage three-pole pipe.
CN201420839645.XU 2014-12-26 2014-12-26 A kind of capacitance-resistance voltage reduction circuit Expired - Fee Related CN204304808U (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107907354A (en) * 2017-11-07 2018-04-13 南京高华科技股份有限公司 One kind is used for standard EMU Cross deformation detection device
CN108039828A (en) * 2017-12-27 2018-05-15 浙江恒业电子有限公司 Capacitance-resistance full-wave rectifying circuit
CN114050642A (en) * 2022-01-12 2022-02-15 库珀(天津)科技有限公司 Low-cost and function block decoupling electric UPS system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107907354A (en) * 2017-11-07 2018-04-13 南京高华科技股份有限公司 One kind is used for standard EMU Cross deformation detection device
CN108039828A (en) * 2017-12-27 2018-05-15 浙江恒业电子有限公司 Capacitance-resistance full-wave rectifying circuit
CN114050642A (en) * 2022-01-12 2022-02-15 库珀(天津)科技有限公司 Low-cost and function block decoupling electric UPS system

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