WO2020052296A1

WO2020052296A1 - Hybrid power supply-based electronic switch adjusting circuit and power supply

Info

Publication number: WO2020052296A1
Application number: PCT/CN2019/090735
Authority: WO
Inventors: 张文龙; 陈元木
Original assignee: 厦门天力源光电科技有限公司
Priority date: 2018-09-14
Filing date: 2019-06-11
Publication date: 2020-03-19
Also published as: CN109245525A

Abstract

Disclosed in the present invention are a hybrid power supply-based electronic switch adjusting circuit and a power supply, wherein the electronic switch adjusting circuit comprises a detection module (11), a control module (12), an adjustment module (13), a hybrid power supply module (14), a voltage voltage-divided power-taking module (15) and a current-coupled power-taking module (16); the adjustment module (13) contains an electronic switch, and the detection module (11) is used to send a detected live-wire alternating-current power over signal to the control module (12); the control module (12) outputs an adjustment control signal to control the electronic switch of the adjustment module (13) to adjust a load; the voltage voltage-divided power-taking module (15) and the current-coupled power-taking module (16) are separately connected to the hybrid power supply module (14) so as to output power, and the hybrid power supply module (14) is connected to the control module (12) to control the power supplied by means of the voltage voltage-divided power-taking module (15) and/or the current-coupled power-taking module (16). The present invention may not only ensure that the effective capacity of the load is fully exerted, but may also ensure that the obtained power supply is stable and reliable.

Description

Electronic switch adjusting circuit based on hybrid power supply and power supply

Technical field

The present invention relates to the technical field of electronic switch adjustment circuits, and in particular, to an electronic switch adjustment circuit and a power supply based on hybrid power supply.

Background technique

Electronic switches can be divided into "L (fire) line-N (zero) line" type and single "L (fire) line" type according to different power supply methods. At present, "L (fire) line- N (zero) wire type electronic switches are mostly. However, there are many applications where the electronic switch can only be connected in series with the L (fire) wire due to the limitation of the power supply condition, that is, a single fire wire type, such as a typical dimmer switch. The “power supply for an electronic switch” disclosed in the prior art is a power supply for an electronic switch powered by a single fire wire. See FIG. 1, which is a schematic diagram of a typical single fire wire powered electronic switch regulation circuit. Figure, the power supply is generally obtained by voltage-dividing power supply, specifically, the hot wire is led out by the first diode D1, the second diode D2, and then the third switch Q3 and the first voltage regulator module. IC1 is used as a power supply after processing; the main principle is to use the first switch Q1 and the second switch Q2 are not turned on (see Figure 2) or in a small opening angle and light load state (see Figure 3, where the shadow Part of the t1 period indicates that it is turned on, and the blank part of t2 period indicates that it is not turned on.) The voltage is divided out during the non-open period, and is regulated by the third switch Q3 and the first voltage stabilization module IC1 as the power supply. The tube Q1 and the second switching tube Q2 are close to full conduction (see FIG. 4), and when they are fully conductive (see FIG. 5), the power supply they take is very unreliable, or even zero; if To ensure that the power supply it takes is reliable, the first turn on The switch Q1 and the second switch Q2 are not allowed to conduct for a certain period of time. For example, during the period t2 in FIG. 4, it is necessary to retain a certain period of non-conduction to meet the control power acquisition. The effective capacity of the load is not fully utilized, causing disadvantages such as insufficient output and wasted effective capacity of the load.

Summary of the Invention

In order to solve the technical problems in the prior art, the present invention provides an electronic switch adjustment circuit and power supply based on hybrid power supply. Through structural improvement, both the effective capacity of the load can be fully exerted and the obtained power supply can be guaranteed. Power supply is stable and reliable.

The technical solution adopted by the present invention to solve the above technical problems is to provide an electronic switch adjustment circuit based on hybrid power supply, which includes: a detection module, a control module, and an adjustment module; the adjustment module includes an electronic switch; and the detection module is used for detecting The incoming FireWire AC signal is sent to the control module; the control module outputs an adjustment control signal to control the electronic switch of the adjustment module to adjust the load; the electronic switch adjustment circuit further includes: a hybrid power supply module, a voltage branch A voltage-type power-taking module and a current-coupled power-taking module; the voltage-dividing power-taking module and the current-coupled power-taking module are respectively connected to the hybrid power supply module to output power, and the voltage-dividing power-taking module The module is used to obtain power from a single live line, and the current-coupled power take module is used to obtain power from the output or input of the adjustment module; the hybrid power supply module is connected to the control module to control The voltage-dividing power-taking module and / or the current-coupled power-taking module to provide a power supply to make a single fire Wire-controlled electronic switches can obtain reliable control power when turned on in standby, light load, heavy load, full load and shutdown under full load.

As a preferred solution of the present invention, the electronic switch adjustment circuit further includes a drive module; the control module outputs an adjustment control signal to control the electronic switch of the adjustment module via the drive module to adjust the load; the hybrid power supply The module is connected to the driving module to control power supply through the voltage-dividing power-taking module and / or the current-coupled power-taking module.

As a preferred solution of the present invention, the current-coupled power taking module includes: a power taking element, a rectifier bridge stack, a DC / DC converter, and a second voltage stabilizing module; the power taking element is connected in series to the adjustment module Between the output terminal of the load and the load, or the power taking element is connected in series between the input terminal of the regulating module and the power source; the power taking element is rectified by the rectifier bridge stack and connected to the DC / DC Converter input terminal; the DC / DC converter output terminal is connected to an input terminal of the hybrid power supply module after being stabilized by the second voltage stabilizing module.

As a preferred solution of the present invention, a fourth diode is further included between the current-coupled power taking module and an input terminal of the hybrid power supply module; the anode of the fourth diode and the second diode An output terminal of the voltage stabilization module is connected, and a cathode of the fourth diode is connected to an input terminal of the hybrid power supply module.

As a preferred solution of the present invention, the power taking element includes a current transformer, a high-power resistor or an inductor.

As a preferred solution of the present invention, the power taking element is a current transformer; the current coupling power taking module further includes a first inductor; the first inductor is connected between the current transformer and the rectifier bridge stack. Between; the primary side of the current transformer is connected between the output terminal of the regulation module and the load, or the primary side of the current transformer is connected between the input terminal of the regulation module and the power source; The secondary side of the current transformer is connected to the rectifier bridge stack.

As a preferred solution of the present invention, the adjustment module includes a first switch tube, a second switch tube, a first resistor, and a second resistor; an input end of the first switch tube is connected to a live line terminal through a power switch, and The control terminal of the first switch tube receives the adjustment control signal, and the output terminal of the first switch tube is connected to the input terminal of the second switch tube through the first resistor and the second resistor. The control ends of the two switch tubes receive the adjustment control signal, and the output end of the second switch tube is connected to the neutral line terminal through the current-coupled power taking module and the load; A current-coupled power taking module is connected to the input terminal of the first switch tube, the control terminal of the first switch tube receives the adjustment control signal, and the output terminal of the first switch tube passes the first resistor And a second resistor is connected to an input terminal of the second switch tube, a control terminal of the second switch tube receives the adjustment control signal, and an output terminal of the second switch tube is connected to a neutral terminal through a load .

As a preferred solution of the present invention, the first switching transistor is a MOS transistor, a thyristor, or a thyristor; and the second switching transistor is a MOS transistor, a thyristor, or a thyristor.

As a preferred solution of the present invention, the voltage-dividing power taking module includes a first diode, a second diode, a third resistor, a sixth resistor, a third switch tube, a first capacitor, and a first stabilizer. Voltage module; the anode of the first diode is connected between the switch and the input terminal of the adjustment module; the anode of the second diode is connected between the load and the output terminal of the adjustment module; the first two The cathode and the cathode of the second diode are respectively connected to one end of the third resistor; the other end of the third resistor is connected to one end of the sixth resistor through the third switch tube; the sixth The other end of the resistor is connected to one end of the first capacitor and the input end of the first voltage stabilization module; the other end of the first capacitor is grounded; the output end of the first voltage stabilization module is connected to the The other input of the hybrid power supply module is connected.

As a preferred solution of the present invention, a third diode is further connected between the voltage-dividing power taking module and the other input terminal of the hybrid power supply module; the anode of the third diode is connected to all The output terminal of the first voltage stabilization module is connected, and the cathode of the third diode is connected to the other input terminal of the hybrid power supply module.

The invention also provides a power supply based on hybrid power supply, including the electronic switch adjustment circuit.

With the above technical solution, compared with the prior art, the beneficial effects obtained by the present invention are:

(1) The present invention is an electronic switch adjustment circuit based on hybrid power supply, which adopts a hybrid power supply method of voltage-dividing and current-coupling power supply, and is turned on in standby (the first switch Q1 and the second switch Q2 is not turned on) or lightly loaded (the first switching transistor Q1 and the second switching transistor Q2 are turned on for a short time). The voltage-dividing method is used to obtain power. The second switch Q2 is close to full conduction or full conduction) and shutdown at full load is mainly based on current coupling to obtain power, that is, power is supplied by a hybrid parallel power supply method of voltage-dividing and current coupling. , To ensure that the electronic switch in standby, light load, heavy load, full load and shutdown at full load can obtain reliable control power, to achieve flexible and reliable control of the electronic switch to the load, and the switch of the single fire wire control system 2. The realization of the reliable power supply necessary for the remote and intelligent control of electricity plays an active role, providing a reliable power source for the control unit and the RF module;

(2) An electronic switch adjustment circuit based on hybrid power supply according to the present invention, the voltage-dividing power-taking module and the current-coupled power-taking module are connected to the hybrid through a third diode and a fourth diode, respectively. The power supply module plays a reverse protection role, so that the voltage-dividing power-taking module and the current-coupled power-taking module are isolated from each other, ensuring the independence of each power-taking.

BRIEF DESCRIPTION OF THE DRAWINGS

1 is a prior art single-wire-powered electronic switch adjustment circuit diagram;

FIG. 2 is a waveform diagram when the electronic switch is not turned on or in standby;

FIG. 3 is a waveform diagram of the electronic switch working in a light load state; FIG.

4 is a waveform diagram of an electronic switch working in a heavy load state;

FIG. 5 is a waveform diagram of the electronic switch working at a full load state;

6 is a block diagram of an electronic switch adjustment circuit module based on hybrid power supply according to the first embodiment of the present invention;

7 is a circuit diagram of an electronic switch adjustment circuit based on hybrid power supply according to the first embodiment of the present invention;

8 is a block diagram of an electronic switch adjustment circuit module based on hybrid power supply according to a second embodiment of the present invention;

FIG. 9 is a circuit diagram of an electronic switch adjustment based on hybrid power supply according to the second embodiment of the present invention.

detailed description

The technical solution according to the present invention will be described in detail below with reference to the drawings and embodiments.

Example one

6 and FIG. 7, an electronic switch adjustment circuit based on hybrid power supply according to the present invention includes a detection module 11, a control module 12, an adjustment module 13, a hybrid power supply module 14, a voltage-divided power-take module 15, and a current. Coupling power module 16. The detection module 11 includes a zero-crossing detection module, and the zero-crossing detection module is configured to output the detected zero-crossing detection signal of the live wire AC power to the control module 12; the control module 12 receives the zero-crossing detection signal And outputting a control signal according to the zero-crossing detection signal to control the electronic switch of the adjusting module 13 to adjust the load RL; the voltage-dividing power-taking module 15 and the current-coupled power-taking module 16 are respectively connected with the The hybrid power supply module 14 is connected to output power. The voltage-divided power take-off module 15 is used to obtain power from a single live line. The current-coupled power take-up module 16 is used to obtain power from the output of the adjustment module 13. Power supply; the hybrid power supply module 14 is connected to the control module 12 to control the power supply through the voltage-dividing power-taking module 15 and / or the current-coupled power-taking module 16 so that The electronic switch can obtain reliable control power when it is turned on in standby, light load, heavy load, full load and shutdown under full load. The electronic switch includes, but is not limited to, a MOS transistor, a thyristor or a thyristor.

Specifically, the control module 12 includes a single-chip microcomputer and its peripheral circuits.

In this embodiment, the electronic switch adjustment circuit further includes a drive module 17; the control module 12 outputs an adjustment control signal to control the electronic switch of the adjustment module 13 through the drive module 17 to adjust the load RL; The hybrid power supply module 14 is connected to the driving module 17 to control the power supply through the voltage-dividing power-taking module 15 and / or the current-coupled power-taking module 16.

The load includes a resistive or capacitive load, such as an electronic product load such as a lamp, a lighting product, or an electric heating product; the control module outputs an adjustment control signal to control an electronic switch of the adjustment module to adjust power to the resistive or capacitive load . In addition, the load may also be an inductive load, such as an inductive load such as a fan or a motor. The control module outputs an adjustment control signal to control an electronic switch of the adjustment module to adjust the speed or power of the inductive load.

Specifically, the driving module 17 includes a driving chip for amplifying the adjustment control signal output by the control module 12 and outputting the adjustment control signal to the adjustment module 13 to drive the first switch Q1 and the second switch Q2. In other embodiments, a push-pull circuit composed of discrete components can also be used to drive the first switch Q1 and the second switch Q2.

Specifically, the hybrid power supply module 14 may determine who supplies power based on the power output from the voltage-divided power-take module 15 and the current-coupled power-take module 16. If the power output by the power-taking module 15 is large, the voltage-dividing power-taking module 15 is selected to supply power to the control module 12 and the like; if the power output by the current-coupled power-taking module 16 is large, the current is selected by current The coupled power taking module 16 supplies power to the control module 12 and the like. Of course, it is also possible to comprehensively utilize the power output by the voltage-divided power-take module 15 and the current-coupled power-take module 16, such as taking the sum of the two to supply power. The embodiments of the present invention are not specifically limited. .

Further, the current-coupled power taking module 16 includes a power taking component, a rectifier bridge stack BD1, a DC / DC converter, a second voltage stabilizing module IC2, and a fourth diode D4. The power taking component includes but does not include: Limited to CT, high-power resistor or inductor.

In this embodiment, the power taking element is a current transformer CT; the current coupling power taking module 16 further includes a first inductor L1; and the material used for the CT core of the current transformer includes, but is not limited to, silicon steel, Superfine crystal or permalloy.

Further, the adjustment module 13 includes a first switch Q1, a second switch Q2, a first resistor R1, and a second resistor R2. The first switching transistor Q1 may be, but is not limited to, a MOS transistor, a thyristor, or a thyristor; the second switching transistor Q2 may be, but is not limited to, a MOS transistor, a thyristor, or a thyristor.

The input terminal of the first switch tube Q1 is connected to the live wire terminal L through the power switch K; the control terminal of the first switch tube Q1 receives the adjustment control signal; the output terminal of the first switch tube Q1 passes through The first resistor R1 and the second resistor R2 are connected to an input terminal of the second switch tube Q2; a control terminal of the second switch tube Q2 receives the adjustment control signal; an output of the second switch tube Q2 The terminal is connected to the neutral terminal N through the current coupling power taking module 16 and the load RL.

Specifically, the power switch K connected to the live wire terminal L may be a button switch or a key switch, as long as the same function as the present invention can be achieved.

In this embodiment, the first switching transistor Q1 and the second switching transistor Q2 are both N-channel field effect transistors (N-channel MOS transistors), and the control terminal, input terminal, and output terminal of the first switching transistor Q1 correspond to N, respectively. The gate, drain, and source of the channel FET, and the control terminal, input, and output of the second switch Q2 correspond to the gate, source, and drain of the N-channel FET. In other embodiments, the first switching transistor Q1 and the second switching transistor Q2 may also be other types of switching devices, such as a thyristor or a thyristor, as long as they can achieve the same function as the present invention.

In this embodiment, the adjustment module 13 receives the adjustment control signal output from the control module 12 and controls the conduction of the first switch Q1 and the second switch Q2 according to the adjustment control signal. The adjustment control signal is a pulse width modulation signal, and the control module 12 controls the switching duty ratio of the first switch Q1 and the second switch Q2 through the pulse width modulation signal, thereby adjusting the power consumption of the load RL and realizing the adjustment function of the load RL For example, when the load RL is a lamp, adjust the brightness function of the lamp. The larger the duty cycle, the greater the power of the lamp, and the higher the brightness of the lamp. For example, when the load RL is a fan, the speed function of the fan is adjusted. The larger the air ratio, the greater the power of the fan and the faster the fan. Of course, the load RL of the present invention may also be other adjustable devices, which are not specifically limited in the embodiment of the present invention.

Specifically, the primary side of the current transformer CT is connected between the output terminal of the adjustment module 13 and the load RL; the secondary side of the current transformer CT passes the first inductor L1 and the rectifier bridge. The reactor BD1 is connected, and the rectifier bridge reactor BD1 is rectified and connected to the DC / DC converter input terminal; the DC / DC converter output terminal is regulated by the second voltage stabilization module IC2; The anode of the four diode D4 is connected to the output terminal of the second voltage stabilization module IC2, and the cathode of the fourth diode D4 is connected to an input terminal of the hybrid power supply module 14. In this embodiment, the output terminal of the adjustment module 13 is the output terminal of the second switch Q2.

The voltage-dividing power-taking module 15 includes a first diode D1, a second diode D2, a third resistor R3, a fourth resistor R4, a fifth resistor R5, a sixth resistor R6, and a voltage regulator ZD2. The third switch Q3, the first capacitor C1, and the first voltage stabilization module IC1.

In this embodiment, the third switching transistor Q3 is an NPN transistor. In other embodiments, the third switching transistor Q3 may also be another type of switching device, as long as it can achieve the same function as the present invention.

Specifically, the anode of the first diode D1 is connected to the input terminal of the switch and adjustment module 13 (in this embodiment, the input terminal of the adjustment module 13 is the input terminal of the first switch Q1) Between; the anode of the second diode D2 is connected between the load RL and the primary side of the current transformer CT; the cathodes of the first diode D1 and the second diode D2 are respectively connected to the One end of the third resistor R3; the other end of the third resistor R3 is connected to the collector of the third switch Q3; an emitter of the third switch Q3 is connected to one end of the sixth resistor R6 The fourth resistor R4 is connected between the collector and the base of the third switch Q3; the fifth resistor R5 is connected between the emitter and the base of the third switch Q3; The cathode of the Zener ZD2 is connected to the base of the third switch Q3, and the anode of the Zener ZD2 is grounded; the other end of the sixth resistor R6 is connected to one end of the first capacitor C1, The input ends of the first voltage stabilization module IC1 are connected respectively; the other end of the first capacitor C1 is grounded; the first voltage stabilization module The output end of IC1 is connected to the other input end of the hybrid power supply module 14; one end of the detection module is respectively connected to the cathodes of the first diode D1 and the second diode D2, and the detection module The other end is connected to the control module 12.

A third diode D3 is also connected between the voltage-dividing power-take module 15 and the other input terminal of the hybrid power supply module 14; the anode of the third diode D3 and the first stable The output terminal of the voltage module IC1 is connected, and the cathode of the third diode D3 is connected to the other input terminal of the hybrid power supply module 14.

The invention provides a power supply based on hybrid power supply, which includes the hybrid power supply module 14, a voltage-dividing power-taking module 15 and a current-coupled power-taking module 16. The power supply is provided for electronic switches in various working states. Reliable control power; the various working states include start-up, light load, heavy load, full load and full load shutdown in standby; the electronic switch is a single fire wire controlled electronic switch, including MOS tube, controllable Silicon or thyristor. In this embodiment, the electronic switch includes a first switch Q1 and a second switch Q2, and the first switch Q1 and the second switch Q2 are N-channel field effect transistors.

According to the present invention, the first switch tube Q1 and the second switch tube Q2 in the electronic switch controlled by a single fire wire have a longer conducting period t1, and the larger the current flowing through the load RL, the current transformer CT connected in the main current loop is connected. The more energy is coupled to the secondary side, the energy can be reliably obtained as the control power source of the control loop, and it is a good complement to the voltage divided voltage power take-off method. It takes the power energy taken during heavy load, full load, and full load shutdown. Inadequate problems, the current-coupled power supply method of the present invention can provide the required power supply when it is under heavy load, full load, and full load shutdown, so that the two are mixed in parallel to make the power supply more reliable.

Specifically, after the power switch K is closed, the first switch Q1 and the second switch Q2 receive the control control signal of the control module 12 and work. When the first switch Q1 and the second switch Q2 work, the current passes through the power switch. K. The first switch Q1, the first resistor R1, the second resistor R2, the second switch Q2, and the current transformer CT supply power to the load RL. During the start-up or light-load operation in standby, the first switch Q1 and the second switch Q2 have a shorter conduction time, and are mainly powered by the first diode D1 and the second diode D2 and then pass the second The resistor R2, the third transistor, the sixth resistor R6, the first voltage regulator module IC1, the fourth resistor R4, the voltage regulator ZD2, the fifth resistor R5, the first capacitor C1, and the second capacitor form a voltage stabilization network. After the voltage stabilization process, it is used as one of the power supply sources VCC1 required for the control of the electronic switch. During heavy load, full load operation, and shutdown operation at full load, because the first switch Q1 and the second switch Q2 are close to full conduction or full conduction, the energy obtained by the above voltage-divided power source It is smaller. For example, when the first switch Q1 and the second switch Q2 are fully turned on, the energy obtained by the voltage-dividing power source is smaller, or even zero, but the current flowing through the load RL is relatively large, and Simultaneously flows through the primary side of the current transformer CT that is serially connected to the main current loop. Under this operating condition, the more energy the current transformer CT couples to the secondary side, the energy can be obtained reliably and then passed through the first inductor. L1, rectifier bridge stack BD1, DC / DC converter, second voltage regulator module IC2, third capacitor, fourth capacitor and other components make up the transformation and voltage stabilization network and process as another group of power supply required for the control of the electronic switch. Power VCC2; VCC1 is isolated by a third diode and VCC2 is isolated by a fourth diode D4 to form a parallel hybrid power supply, which provides the reliable and stable working power required by the electronic switch.

The combination of the above power supply sources is mainly obtained by voltage-dividing power supply during startup at standby or light-load operation, and shutdown at heavy load, full load, and full load. The two are connected in parallel and parallel to obtain the working power for power supply, which can effectively ensure that the electronic switch controlled by single fire wire can be turned on during standby, light load, heavy load, full load and shutdown under full load. Can obtain a reliable working power supply to meet the switch's flexible and reliable control of the load RL.

Example two

As shown in FIG. 8 and FIG. 9, an electronic switch adjustment circuit based on hybrid power supply according to the present invention includes: a detection module 11, a control module 12, an adjustment module 13, a hybrid power supply module 14, a voltage-divided power taking module 15 and Current-coupled power module 16. The adjustment module (13) includes an electronic switch, and the detection module 11 includes a zero-crossing detection module, which is configured to output the detected zero-crossing detection signal of the live wire AC power to the control module 12; the control The module 12 receives the zero-crossing detection signal and outputs an adjustment control signal to control the electronic switch of the adjustment module 13 to adjust the load RL according to the zero-crossing detection signal. The voltage-dividing power-taking module 15 and current coupling. The power extraction module 16 is connected to the hybrid power supply module 14 to output power. The voltage-divided voltage extraction module 15 is used to obtain power from a single live line, and the current-coupled power extraction module 16 is used to receive power from The input terminal of the adjustment module 13 obtains power; the hybrid power supply module 14 is connected to the control module 12 to control the voltage-dividing power-taking module 15 and / or the current-coupled power-taking module 16 To supply power, so that the single-wire-controlled electronic switch can obtain reliable control power when it is turned on during standby, light load, heavy load, full load and shutdown under full load. The electronic switch includes, but is not limited to, a MOS transistor, a thyristor or a thyristor.

This embodiment is different from the first embodiment in that the current-coupled power taking module 16 is disposed between a power switch and an input terminal of the adjustment module 13. The circuit connection relationship and principle of other parts are consistent with the first embodiment, and this embodiment will not be described repeatedly.

The above are only preferred embodiments of the present invention, and are not intended to limit the present invention in any form. Although the present invention has been disclosed as above with preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make many possible changes and modifications to the technical solution of the present invention or modify it into equivalent equivalent embodiments without departing from the scope of the technical solution of the present invention. . Therefore, any simple modification, equivalent change, and modification made to the above embodiments according to the technical essence of the present invention without departing from the content of the technical solution of the present invention shall fall within the protection scope of the technical solution of the present invention.

Industrial applicability

The invention comprises a detection module, a control module, an adjustment module, a hybrid power supply module, a voltage-dividing power-taking module and a current-coupled power-taking module to form an electronic switch regulating circuit. The power is taken from the hybrid power supply mode. When the machine is turned on in standby (the first switch Q1 and the second switch Q2 are not turned on) or lightly loaded (the first switch Q1 and the second switch Q2 are turned on for a short time), The voltage-dividing method is mainly to obtain power, and the heavy load or full load (that is, the first switch Q1 and the second switch Q2 are close to full conduction or full conduction) and the shutdown at full load is mainly based on the current coupling power supply. That is, the power is supplied by a hybrid parallel power supply method of voltage-divided power extraction and current-coupled power extraction, to ensure that the electronic switch can be reliably turned on, lightly loaded, heavy loaded, fully loaded, and shut down when fully loaded. The control power supply realizes the flexible and reliable control of the load by the electronic switch, and the realization of the reliable power supply power necessary for the remote and intelligent control of the switch and electrical control of the single fire wire control system. Provide reliable power element and RF module. The present invention is easy to implement in industry. The detection module, control module, adjustment module, hybrid power supply module, voltage-dividing power-taking module and current-coupled power-taking module are mainly composed of electronic components. These electronic components are also industrially Easy to process.

Claims

An electronic switch adjustment circuit based on hybrid power supply includes: a detection module (11), a control module (12), and an adjustment module (13); the adjustment module (13) contains an electronic switch, and the detection module (11) is used for The detected live wire AC signal is sent to the control module (12); the control module (12) outputs an adjustment control signal to control the electronic switch of the adjustment module (13) to adjust the load; Including: a hybrid power supply module (14), a voltage-divided power-take module (15), and a current-coupled power-take module (16); the voltage-divide-voltage power-take module (15), and a current-coupled power-take module ( 16) respectively connected to the hybrid power supply module (14) to output power, the voltage-divided power take-off module (15) is used to obtain power from a single live wire, and the current-coupled power take-off module (16) Configured to obtain power from an output or an input of the regulating module (13); the hybrid power supply module (14) is connected to the control module (12) to control the voltage-dividing power taking module ( 15) and / or the current-coupled power take-off module (16) to provide a power supply for Firewire-controlled electronic switches can obtain reliable control power during start-up, light load, heavy load, full load and shutdown at full load.
The electronic switch adjustment circuit based on hybrid power supply according to claim 1, wherein the electronic switch adjustment circuit further comprises a drive module (17); the control module (12) outputs an adjustment control signal via the drive module (17) controlling the electronic switch of the regulating module (13) to regulate the load; the hybrid power supply module (14) is connected to the driving module (17) to control the voltage-dividing power taking module (15) and / or the current-coupled power taking module (16) to supply power.
The electronic switch adjusting circuit based on hybrid power supply according to claim 1, wherein the current-coupled power taking module (16) comprises: a power taking element, a rectifier bridge stack BD1, a DC / DC converter, and a second Voltage stabilization module IC2; the power taking element is connected in series between the output terminal of the adjusting module (13) and a load, or the power taking element is connected in series between an input terminal of the adjusting module (13) and a power source Between; the power taking element is rectified by the rectifier bridge stack BD1 and connected to the DC / DC converter input; the output of the DC / DC converter is stabilized by the second voltage stabilization module IC2 Connected to an input terminal of the hybrid power supply module (14).
The electronic switch adjustment circuit based on hybrid power supply according to claim 3, wherein a first terminal of the current coupling power taking module (16) and an input terminal of the hybrid power supply module (14) are further connected. Four diodes D4; the anode of the fourth diode D4 is connected to the output terminal of the second voltage stabilization module IC2, and the cathode of the fourth diode D4 is connected to the hybrid power supply module (14). One input terminal is connected.
The electronic switch adjusting circuit based on hybrid power supply according to claim 3, wherein the power taking element comprises a current transformer, a high-power resistor or an inductor.
The electronic switch adjustment circuit based on hybrid power supply according to claim 3, wherein the power taking element is a current transformer CT; the current-coupled power taking module (16) further comprises a first inductor L1; The first inductor L1 is connected between the current transformer CT and the rectifier bridge stack BD1; the primary side of the current transformer CT is connected between the output terminal of the regulation module (13) and a load, or A primary side of the current transformer CT is connected between the input terminal of the regulating module (13) and a power source; a secondary side of the current transformer CT is connected to the rectifier bridge stack BD1.
The electronic switch adjustment circuit based on hybrid power supply according to claim 1 or 2, wherein the adjustment module (13) comprises a first switch Q1, a second switch Q2, a first resistor R1 and a second resistor R2; the input terminal of the first switch tube Q1 is connected to the live line terminal via a power switch, the control terminal of the first switch tube Q1 receives the adjustment control signal, and the output terminal of the first switch tube Q1 passes through The first resistor R1 and the second resistor R2 are connected to an input terminal of the second switch tube Q2, a control terminal of the second switch tube Q2 receives the adjustment control signal, and an output of the second switch tube Q2 The terminal is connected to the neutral terminal through the current-coupled power-taking module (16) and the load; or, the hot-wire terminal is connected to the first switch tube Q1 through a power switch and the current-coupled power-taking module (16). The input ends are connected, the control end of the first switch Q1 receives the adjustment control signal, and the output end of the first switch Q1 is connected to the second switch through the first resistor R1 and the second resistor R2. The input end of the second switching tube Q2 is connected. Receiving said adjustment control signal, the output of the second switching transistor Q2 through a load connected to the zero line end.
The electronic switch adjusting circuit based on hybrid power supply according to claim 7, wherein the first switching transistor Q1 is a MOS transistor, a thyristor or a thyristor; and the second switching transistor Q2 is a MOS transistor, a controllable transistor Silicon or thyristor.
The electronic switch adjustment circuit based on hybrid power supply according to claim 1, wherein the voltage-dividing power-taking module (15) comprises a first diode D1, a second diode D2, and a third resistor R3, a sixth resistor R6, a third switch Q3, a first capacitor C1, and a first voltage stabilization module IC1; the anode of the first diode D1 is connected between the switch and the input terminal of the adjustment module (13); The anode of the second diode D2 is connected between the load and the output terminal of the adjustment module (13); the cathodes of the first diode D1 and the second diode D2 are respectively connected to the third resistor. One end of R3; the other end of the third resistor R3 is connected to one end of the sixth resistor R6 via the third switch Q3; the other end of the sixth resistor R6 and one end of the first capacitor C1 The input ends of the first voltage stabilization module IC1 are connected respectively; the other end of the first capacitor C1 is grounded; the output end of the first voltage stabilization module IC1 is connected to the other of the hybrid power supply module (14). The inputs are connected.
The electronic switch adjusting circuit based on hybrid power supply according to claim 9, characterized in that the voltage-dividing power-taking module (15) and another input terminal of the hybrid power supply module (14) are further connected There is a third diode D3; the anode of the third diode D3 is connected to the output terminal of the first voltage stabilization module IC1, and the cathode of the third diode D3 is connected to the hybrid power supply module (14 ) Is connected to the other input.
A power supply based on a hybrid power supply, comprising an electronic switch adjusting circuit according to any one of claims 1 to 10.