CN202794915U - Isolation-type zero standby power consumption circuit - Google Patents
Isolation-type zero standby power consumption circuit Download PDFInfo
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- CN202794915U CN202794915U CN2012202512072U CN201220251207U CN202794915U CN 202794915 U CN202794915 U CN 202794915U CN 2012202512072 U CN2012202512072 U CN 2012202512072U CN 201220251207 U CN201220251207 U CN 201220251207U CN 202794915 U CN202794915 U CN 202794915U
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Abstract
The utility model relates to an isolation-type zero standby power consumption circuit. The circuit comprises an alternating-current first input terminal and an alternating-current second input terminal; the first input terminal is connected with an input terminal of an isolation voltage-stabilized power supply circuit by a fuse; the second input terminal is connected with the other input terminal of the isolation voltage-stabilized power supply circuit by a bidirectional silicon controlled rectifier; the second input terminal is connected with a T2 electrode of the bidirectional silicon controlled rectifier and a power supply SW; a T1 electrode of the bidirectional silicon controlled rectifier is connected with an output terminal of a pulse transformer of a pulse trigger circuit; the other terminal of the power supply SW is connected with an anode of a diode of an optical coupler detection circuit by a resister R4; and a cathode of the diode of the optical coupler detection circuit is connected with a cathode of a diode of the pulse trigger circuit and connected with a control electrode of the bidirectional silicon controlled rectifier by a resistor R5. According to the utility model, a transformer and an optical coupler are used for electrical isolation of a heavy current and a light current, and the bidirectional silicon controlled rectifier is turned on and off such that an electric appliance consumes no power in a standby state, thereby achieving the purpose of energy saving. The isolation-type zero standby power consumption circuit can be widely used in the fields of household electrical appliances and industrial control.
Description
Technical field
The utility model relates to a kind of power control circuit, and particularly a kind of isolated standby zero power consumption circuit belongs to the circuit engineering field.
Background technology
Many electrical equipment automatic shutdown all after working routine finishes, be in holding state, wait for and accept extraneous again startup work order of sending at any time, such as automatic shutdown all after the electrical work EOP (end of program) such as washing machine, suction cleaner, coffee machine, be in holding state, generally speaking, electrical equipment is in order to accept extraneous again startup work order of sending at any time at holding state, there is certain stand-by power consumption in the capital, the electric appliance standby power consumption is generally 0.5W-3W at present, and European command request family appliance standby power consumption is below 0.5W.A kind of improved form as standby zero power consumption circuit, generally adopt at present the zero power consumption circuit of Control AC power break-make, but because relay contact is mechanical contact, the mechanical action time is slower, serviceable life is lower, simultaneously interchange forceful electric power and the electric non-isolation of light current in the electrical equipment, it is larger on the impact of light current to exchange forceful electric power, and the system rejection to disturbance ability is not high.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of isolated standby zero power consumption circuit, utilize the break-make of bidirectional triode thyristor, thereby the break-make of control apparatus AC power, so that electrical equipment automatic shutdown after working routine finishes, zero-power consumes during holding state, bidirectional triode thyristor machinery-free contact, actuation time is fast, long service life, utilize simultaneously transformer and optocoupler, realize exchanging the electrical isolation of forceful electric power and light current, eliminated forceful electric power to the impact that light current disturbs, improved the system rejection to disturbance ability.
In order to solve the problems of the technologies described above, the utility model provides a kind of isolated standby zero power consumption circuit, comprises
The first input end Lin and the second input end Nin that exchange,
Described first input end Lin links to each other with isolation voltage-stabilized power supply circuit one input end by fuse Fuse,
Described the second input end Nin links to each other with described another input end of isolation voltage-stabilized power supply circuit by bidirectional triode thyristor TR1,
Described the second input end Nin links to each other with power switch SW one end with the T2 utmost point of described bidirectional triode thyristor TR1,
The T1 utmost point of described bidirectional triode thyristor TR1 links to each other with pulse transformer one output terminal of pulsed triggering circuit,
The other end of described power switch SW links to each other with the diode anode of optocoupler testing circuit by resistance R 4,
The diode cathode of described optocoupler testing circuit links to each other with the diode cathode of described pulsed triggering circuit and links to each other with the control utmost point G of described bidirectional triode thyristor TR1 by resistance R 5,
RC protection in parallel loop 2 between the T2 utmost point of described bidirectional triode thyristor TR1 and the T1 utmost point,
In parallel one triggers capacitor C 2 between the T1 utmost point of described bidirectional triode thyristor TR1 and the control utmost point G,
A safety capacitor C 1 in parallel and a voltage dependent resistor (VDR) RV between the first input end Lin of described interchange and described the second input end Nin,
Described isolation voltage-stabilized power supply circuit comprises VD Vcc and the simulation ground GND of isolation.
Wherein,
A safety electric capacity in parallel between the first input end Lin of described interchange and described the second input end Nin
C1 and a voltage dependent resistor (VDR) RV.
Described RC protection loop comprises resistance R 3 and the capacitor C 3 of serial connection.
Described the second input end Nin links to each other with another input end of isolation voltage-stabilized power supply circuit by bidirectional triode thyristor TR1, described the second input end Nin links to each other with power switch SW one end with the T2 utmost point of described bidirectional triode thyristor TR1, the T1 utmost point of described bidirectional triode thyristor TR1 links to each other with pulse transformer one output terminal of pulsed triggering circuit
Described optocoupler testing circuit comprises optocoupler IC1, resistance R 8, resistance R 9 and filter capacitor C4, the collector of described optocoupler IC1 is connected to VD Vcc by a resistance R 8, be connected with the first input/output port I/O1 by a resistance R 9 simultaneously, described the first input/output port I/O1 meets a filter capacitor C4 simultaneously to simulation ground GND, the emitter of described optocoupler IC1 meets simulation ground GND, the diode anode of described optocoupler IC1 is connected to described power switch SW one end by a resistance R 4, and the diode cathode of described optocoupler IC1 links to each other with the diode cathode of described pulsed triggering circuit 4 and links to each other with the control utmost point G of described bidirectional triode thyristor TR1 by resistance R 5.
Described pulsed triggering circuit comprises NPN triode Q1, resistance R 6, resistance R 7, filter capacitor C4, pulse transformer T4, switching diode D1 and switching diode D2, the base stage of described NPN triode Q1 meets a filter capacitor C5 to simulation ground GND, be connected with the second input/output terminal I/O2 by a resistance R 7 simultaneously, the collector of described NPN triode Q1 is connected to a direct current output voltage V cc by a resistance R 6, the emitter of described NPN triode Q1 links to each other with an end of pulse transformer T4 primary coil, another termination simulation ground GND of described transformer T4 primary coil, a switching diode D1 in parallel between the two ends of described transformer T4 primary coil, one of described transformer T4 secondary coil is rectified continuous with described diode cathode by optocoupler IC1 behind the serial connection one switching diode D2 and is connected with the control utmost point G of described bidirectional triode thyristor TR1 by resistance R 5, and the other end of described transformer T4 secondary coil is connected with the T1 utmost point of described controllable silicon TR1.
Connect one between the control utmost point G of the T1 utmost point of described bidirectional triode thyristor TR1 and described bidirectional triode thyristor TR1 and trigger capacitor C 2.
Described isolation voltage-stabilized power supply circuit comprises VD Vcc and the simulation ground GND of isolation.
The first input/output port I/O1 of described optocoupler testing circuit and the second input/output port I/O2 of described pulsed triggering circuit all are connected to single-chip microprocessor MCU.
Described isolation voltage-stabilized power supply circuit is transformer pressure-reducing bridge rectifier voltage-stabilized power supply circuit or isolation half-wave arrangement voltage-stabilized power supply circuit.
The beneficial effects of the utility model are:
Isolated standby zero power consumption circuit of the present utility model utilizes the break-make of bidirectional triode thyristor TR1, thus the break-make of control apparatus AC power, so that electrical equipment automatic shutdown after working routine finishes, zero-power consumes during holding state, reaches energy-conservation purpose, bidirectional triode thyristor machinery-free contact, movement response is fast, long service life is utilized transformer and optocoupler simultaneously, has realized exchanging the electrical isolation of forceful electric power and light current, eliminate forceful electric power to the impact that light current disturbs, improved the system rejection to disturbance ability.This circuit structure is simple, dependable performance, with low cost, can be widely used in the fields such as household electrical appliances, Industry Control.
Description of drawings
Fig. 1 is the circuit theory diagrams of isolated standby zero power consumption circuit of the present utility model.
Fig. 2 is the synoptic diagram of isolated standby zero power consumption circuit single chip part of the present utility model.
Among the figure: 1, isolation voltage-stabilized power supply circuit, 2, RC protects the loop, 3, the optocoupler testing circuit, 4, pulsed triggering circuit.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.Following examples only are used for the technical solution of the utility model more clearly is described, and can not limit protection domain of the present utility model with this.
In conjunction with illustrated in figures 1 and 2; mainly comprise isolation voltage-stabilized power supply circuit 1 in the isolated standby zero power consumption circuit of the present utility model; safety capacitor C 1, voltage dependent resistor (VDR) RV, fuse Fuse; bidirectional triode thyristor TR1; RC protects loop 2, pulsed triggering circuit 4, optocoupler testing circuit 3; trigger capacitor C 9, resistance R 4 and R5.
Safety capacitor C 1 in parallel and voltage dependent resistor (VDR) RV between the first input end Lin that exchanges and the second input end Nin.
Two incoming end first input end Lin and the second input end Nin of isolation standby zero power consumption circuit connect alternating voltage, first input end Lin links to each other with isolation voltage-stabilized power supply circuit 1 one input ends by fuse Fuse, and the second input end Nin is connected with isolation voltage-stabilized power supply circuit 1 another input end by bidirectional triode thyristor TR1.
The second input end Nin extremely links to each other with the T2 of power switch SW one end and bidirectional triode thyristor TR1, the T1 utmost point of bidirectional triode thyristor TR1 links to each other with pulse transformer one output terminal of pulsed triggering circuit 4, and the other end of power switch SW links to each other with the diode anode of optocoupler testing circuit 3 by resistance R 4.
Optocoupler testing circuit 3 comprises optocoupler IC1, resistance R 8, resistance R 9 and filter capacitor C4, the collector of described optocoupler IC1 is connected to VD Vcc by a resistance R 8, be connected with the first input/output port I/O1 by a resistance R 9 simultaneously, the first input/output port I/O1 meets a filter capacitor C4 simultaneously to simulation ground GND, the emitter of optocoupler IC1 meets simulation ground GND, the diode anode of optocoupler IC1 is connected to power switch SW one end by a resistance R 4, and the diode cathode of optocoupler IC1 links to each other with the diode cathode of pulsed triggering circuit 4 and links to each other with the control utmost point G of bidirectional triode thyristor TR1 by resistance R 5.
Pulsed triggering circuit 4 comprises NPN triode Q1, resistance R 6, resistance R 7, filter capacitor C4, pulse transformer T4, switching diode D1 and switching diode D2, the base stage of NPN triode Q1 meets a filter capacitor C5 to simulation ground GND, be connected with the second input/output terminal I/O2 by a resistance R 7 simultaneously, the collector of NPN triode Q1 is connected to a direct current output voltage V cc by a resistance R 6, the emitter of NPN triode Q1 links to each other with an end of pulse transformer T4 primary coil, another termination simulation ground GND of transformer T4 primary coil, a switching diode D1 in parallel between the two ends of transformer T4 primary coil, one of transformer T4 secondary coil is rectified behind the serial connection one switching diode D2 with continuous by the diode cathode of optocoupler IC1 and be connected with the control utmost point G of bidirectional triode thyristor TR1 by resistance R 5, and the other end of transformer T4 secondary coil is connected with the T1 utmost point of controllable silicon TR1.
RC protection in parallel loop 2 connects one and triggers capacitor C 2 between the T2 utmost point of bidirectional triode thyristor TR1 and the T1 utmost point between the control utmost point G of the T1 utmost point of bidirectional triode thyristor TR1 and bidirectional triode thyristor TR1.Triggering capacitor C 2 selection models in the present embodiment is the electric capacity of 0.1 μ F/50V.
Isolation voltage-stabilized power supply circuit 1 is the transformer pressure-reducing bridge rectifier voltage-stabilized power supply circuit that transformer T3, bridge rectifier D, integrated regulator IC2, filter capacitor C6, C7, C8 and C9 form, dc output power Vcc and simulation ground Vss provide direct supply for single-chip microprocessor MCU and other light current, because former limit and the secondary electrical isolation of transformer T3, so dc output power Vcc and simulation ground Vss and AC power electrical isolation.Isolation voltage-stabilized power supply circuit 1 can also be the isolation rectification mu balanced circuit of other form, such as isolation half-wave arrangement voltage-stabilized power supply circuit (not drawing in this case).The model of bridge rectifier D is 2A/800V in the present embodiment, the model of integrated regulator IC2 is 7805, the model of electrochemical capacitor C7 is 100 μ F/16V, the model of electrochemical capacitor C9 is 470uF/25V, the model of high-frequency filter capacitor C6, C8 is 0.1 μ F/50V, VD+5V.
Fuse Fuse one end is connected to first input end Lin, and an other end is connected to RC resistance-capacitance depressurization electricity---safety capacitor C 1 and voltage dependent resistor (VDR) RV in parallel, and safety capacitor C 1 in parallel and the other end of voltage dependent resistor (VDR) RV are connected to the second input end Nin.
Safety capacitor C 1 is by behind the fuse Fuse, be parallel to alternating voltage two input end Lin, Nin, be mainly used in circuit and suppress electromagnetic interference (EMI) (Electromagnetic Interference, EMI) Conduction Interference in, also can prevent from simultaneously jeopardizing personal safety and life because electronic equipment electric leakage or casing are charged.Safety capacitor C 1 selection model is the electric capacity of 0.22 μ F/280VAC in the present embodiment.
Voltage dependent resistor (VDR) RV is by after insuring a little Fuse; be parallel to alternating voltage two input end Lin, Nin; the main transient overvoltage defencive function that relies on himself; suppress randomnesss such as lightning surge and switching overvoltage, acyclic electrical surge abnormal overvoltage that ac input end Lin and Nin often may occur, holding circuit is avoided the infringement of transient overvoltage.Voltage dependent resistor (VDR) RV selection model is the voltage dependent resistor (VDR) of 14D471 in the present embodiment.
When electrical equipment automatic shutdown after working routine finishes, be in holding state, wait for when accepting extraneous again startup work order of sending at any time, power switch SW in the isolated standby zero power consumption circuit is in off-state, power switch SW is key switch, namely after power switch SW pressed, switch was pressed, and the contact is in closure; After power switch SW unclamped, switch was upspring, and the contact is in disconnection.Power switch SW is in off-state, and bidirectional triode thyristor TR1 turn-offs, and whole circuit power consumption is zero.
When electrical equipment receives the again startup work order of sending in the external world, voltage switch SW is pressed, its closing of contact, because the switching diode D2 acting in opposition of pulsed triggering circuit 4, this moment, the second input end Nin was by resistance R 4,5 pairs of the forward diode of optocoupler testing circuit 3 and resistance R trigger capacitor C 2 and charge, when charging voltage reaches the control utmost point G of bidirectional triode thyristor TR1 and T1 utmost point forward voltage, bidirectional triode thyristor TR1 conducting, the first input end Lin of alternating voltage and the second input end Nin are by the two-way controlled TR1 of isolation voltage-stabilized power supply circuit 1 and conducting, produce VD Vcc, single-chip microprocessor MCU obtains operating voltage Vcc, start working after resetting at once, optocoupler testing circuit 3 is because its diode forward conducting, the triode conducting of optocoupler testing circuit 3, its collector output I/O1 mouth output low level, single-chip microprocessor MCU is by the low level of I/O1 mouth, learn that power switch SW is pressed, single-chip microcomputer sends the high level pulse signal by the I/O2 mouth at each ac zero-crossing point (the ac zero-crossing point testing circuit does not draw), the triode high level conducting of pulsed triggering circuit 4, pulse transformer T4 output high level pulse signal, switching diode D2 and 5 pairs of triggerings of resistance R capacitor C 2 by forward are charged, when charging voltage reaches the control utmost point G of bidirectional triode thyristor TR1 and T1 utmost point forward voltage, bidirectional triode thyristor TR1 continues conducting, because the travelling speed of single-chip microprocessor MCU is higher than the release rate of extraneous human finger far away, therefore, before voltage switch SW is upspring, switching diode D2 negative electrode output by pulsed triggering circuit 4 between the control utmost point G of bidirectional triode thyristor TR1 and the T1 has obtained the zero crossing trigger pip, and bidirectional triode thyristor TR1 still continues conducting.
After power switch SW is upspring, its contact disconnects, bidirectional triode thyristor TR1 still continues conducting, isolation voltage-stabilized power supply circuit 1 still continues output dc voltage Vcc, optocoupler testing circuit 3 is owing to the not conducting of its diode at this moment, and its triode turn-offs, I/O1 mouth output high level, single-chip microprocessor MCU learns that voltage switch SW is upspring, and single-chip microprocessor MCU begins fully other working routine simultaneously.
After single-chip microprocessor MCU is finished other working routine, prepare automatic shutdown, when being in holding state, allow its I/O2 mouth output low level, the triode cut-off of pulsed triggering circuit 4, its pulse transformer T4 does not export the zero crossing pulse triggering signal, therefore there is not zero crossing pulsed triggering circuit signal between the control utmost point G of bidirectional triode thyristor TR1 and the T1 yet, bidirectional triode thyristor TR1 turn-offs, isolation voltage-stabilized power supply circuit 1 does not have input voltage subsequently, and its VD Vcc reduces to zero, and single-chip microprocessor MCU quits work, whole down circuitry, the electrical equipment automatic shutdown is in holding state, zero-power consumption, wait for and accept the extraneous instruction that next time again starts work, begin next time working cycle.In this example, commutation diode since the optocoupler IC1 of the pulse transformer T4 of transformer T3, the pulsed triggering circuit 4 of isolation voltage-stabilized power supply circuit 1 and optocoupler testing circuit 3 all with exchange forceful electric power and realized electrical isolation, eliminate forceful electric power to the impact that light current disturbs, improved the system rejection to disturbance ability.
Above-described embodiment just is to allow the one of ordinary skilled in the art can understand content of the present utility model and according to this enforcement for technical conceive of the present utility model and characteristics being described, its objective is, can not limit protection domain of the present utility model with this.Every some improvement and distortion of making according to the essence of the utility model content, these improvement and distortion also should be considered as protection domain of the present utility model.
Claims (9)
1. an isolated standby zero power consumption circuit is characterized in that, comprises
The first input end Lin and the second input end Nin that exchange,
Described first input end Lin links to each other with isolation voltage-stabilized power supply circuit (1) one input end by fuse,
Described the second input end Nin links to each other with another input end of described isolation voltage-stabilized power supply circuit (1) by bidirectional triode thyristor TR1,
Described the second input end Nin links to each other with power switch SW one end with the T2 utmost point of described bidirectional triode thyristor TR1,
The T1 utmost point of described bidirectional triode thyristor TR1 links to each other with pulse transformer one output terminal of pulsed triggering circuit (4),
The other end of described power switch SW links to each other with the diode anode of optocoupler testing circuit (3) by resistance R 4,
The diode cathode of described optocoupler testing circuit (3) links to each other with the diode cathode of described pulsed triggering circuit (4) and links to each other with the control utmost point G of described bidirectional triode thyristor TR1 by resistance R 5,
RC protection in parallel loop (2) between the T2 utmost point of described bidirectional triode thyristor TR1 and the T1 utmost point,
In parallel one triggers capacitor C 2 between the T1 utmost point of described bidirectional triode thyristor TR1 and the control utmost point G,
A safety capacitor C 1 in parallel and a voltage dependent resistor (VDR) RV between the first input end Lin of described interchange and described the second input end Nin,
Described isolation voltage-stabilized power supply circuit comprises VD Vcc and the simulation ground GND of isolation.
2. isolated standby zero power consumption circuit according to claim 1 is characterized in that, a safety capacitor C 1 in parallel and a voltage dependent resistor (VDR) RV between the first input end Lin of described interchange and described the second input end Nin.
3. isolated standby zero power consumption circuit according to claim 1 is characterized in that, described RC protection loop (2) comprises resistance R 3 and the capacitor C 3 of series connection.
4. non-isolated standby zero power consumption circuit according to claim 1, it is characterized in that, described the second input end Nin links to each other with another input end of isolation voltage-stabilized power supply circuit (1) by bidirectional triode thyristor TR1, described the second input end Nin links to each other with power switch SW one end with the T2 utmost point of described bidirectional triode thyristor TR1, the T1 utmost point of described bidirectional triode thyristor TR1 links to each other with pulse transformer one output terminal of pulsed triggering circuit (4)
5. isolated standby zero power consumption circuit according to claim 1, it is characterized in that, described optocoupler testing circuit (3) comprises optocoupler IC1, resistance R 8, resistance R 9 and filter capacitor C4, the collector of described optocoupler IC1 is connected to VD Vcc by a resistance R 8, be connected with the first input/output port I/O1 by a resistance R 9 simultaneously, described the first input/output port I/O1 meets a filter capacitor C4 simultaneously to simulation ground GND, the emitter of described optocoupler IC1 meets simulation ground GND, the diode anode of described optocoupler IC1 is connected to described power switch SW one end by a resistance R 4, and the diode cathode of described optocoupler IC1 links to each other with the diode cathode of described pulsed triggering circuit (4) and links to each other with the control utmost point G of described bidirectional triode thyristor TR1 by resistance R 5.
6. isolated standby zero power consumption circuit according to claim 1, it is characterized in that, described pulsed triggering circuit (4) comprises NPN triode Q1, resistance R 6, resistance R 7, filter capacitor C4, pulse transformer T4, switching diode D1 and switching diode D2, the base stage of described NPN triode Q1 meets a filter capacitor C5 to simulation ground GND, be connected with the second input/output port I/O2 by a resistance R 7 simultaneously, the collector of described NPN triode Q1 is connected to a direct current output voltage V cc by a resistance R 6, the emitter of described NPN triode Q1 links to each other with an end of pulse transformer T4 primary coil, another termination simulation ground GND of described transformer T4 primary coil, a switching diode D1 in parallel between the two ends of described transformer T4 primary coil, one of described transformer T4 secondary coil is rectified continuous with described diode cathode by optocoupler IC1 behind the serial connection one switching diode D2 and is connected with the control utmost point G of described bidirectional triode thyristor TR1 by resistance R 5, and the other end of described transformer T4 secondary coil is connected with the T1 utmost point of described controllable silicon TR1.
7. isolated standby zero power consumption circuit according to claim 1 is characterized in that, connects one between the control utmost point G of the T1 utmost point of described bidirectional triode thyristor TR1 and described bidirectional triode thyristor TR1 and triggers capacitor C 2.
8. isolated standby zero power consumption circuit according to claim 1, it is characterized in that the first input/output port I/O1 of described optocoupler testing circuit (3) and the second input/output port I/O2 of described pulsed triggering circuit (4) all are connected to single-chip microprocessor MCU.
9. isolated standby zero power consumption circuit according to claim 1 is characterized in that, described isolation voltage-stabilized power supply circuit (1) is transformer pressure-reducing bridge rectifier voltage-stabilized power supply circuit or isolation half-wave arrangement voltage-stabilized power supply circuit.
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| CN2012202512072U CN202794915U (en) | 2012-05-31 | 2012-05-31 | Isolation-type zero standby power consumption circuit |
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| CN2012202512072U CN202794915U (en) | 2012-05-31 | 2012-05-31 | Isolation-type zero standby power consumption circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103346754A (en) * | 2013-05-29 | 2013-10-09 | 天津罗斯诺普信息技术有限公司 | Filtering isolator |
| CN104901672A (en) * | 2015-05-26 | 2015-09-09 | 刘举柱 | Zero power consumption touch switch module circuit |
| CN107018615A (en) * | 2017-05-31 | 2017-08-04 | 田涛 | A kind of electronic switch of micro-current control |
| CN112235892A (en) * | 2020-09-27 | 2021-01-15 | 中国科学院上海光学精密机械研究所 | Multifunctional pulse xenon lamp power supply based on PLC control |
| CN113267097A (en) * | 2021-04-23 | 2021-08-17 | 安徽东风机电科技股份有限公司 | Electric fuse firing function monitoring circuit |
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2012
- 2012-05-31 CN CN2012202512072U patent/CN202794915U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103346754A (en) * | 2013-05-29 | 2013-10-09 | 天津罗斯诺普信息技术有限公司 | Filtering isolator |
| CN104901672A (en) * | 2015-05-26 | 2015-09-09 | 刘举柱 | Zero power consumption touch switch module circuit |
| CN104901672B (en) * | 2015-05-26 | 2017-09-29 | 六安市同心畅能电子科技有限公司 | Zero-power soft-touch control modular circuit |
| CN107018615A (en) * | 2017-05-31 | 2017-08-04 | 田涛 | A kind of electronic switch of micro-current control |
| CN107018615B (en) * | 2017-05-31 | 2024-01-30 | 惠州祺瑞电工有限公司 | Micro-current controlled electronic switch |
| CN112235892A (en) * | 2020-09-27 | 2021-01-15 | 中国科学院上海光学精密机械研究所 | Multifunctional pulse xenon lamp power supply based on PLC control |
| CN113267097A (en) * | 2021-04-23 | 2021-08-17 | 安徽东风机电科技股份有限公司 | Electric fuse firing function monitoring circuit |
| CN113267097B (en) * | 2021-04-23 | 2023-01-17 | 安徽东风机电科技股份有限公司 | Electric fuse firing function monitoring circuit |
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