CN109245525B - Electronic switch regulating circuit based on hybrid power supply and power supply - Google Patents
Electronic switch regulating circuit based on hybrid power supply and power supply Download PDFInfo
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- CN109245525B CN109245525B CN201811074151.6A CN201811074151A CN109245525B CN 109245525 B CN109245525 B CN 109245525B CN 201811074151 A CN201811074151 A CN 201811074151A CN 109245525 B CN109245525 B CN 109245525B
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- 230000008878 coupling Effects 0.000 claims abstract description 31
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 230000000087 stabilizing effect Effects 0.000 claims description 32
- 239000003990 capacitor Substances 0.000 claims description 13
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Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
- H02M3/00—Conversion of dc power input into dc power output
- H02M3/02—Conversion of dc power input into dc power output without intermediate conversion into ac
- H02M3/04—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters
- H02M3/10—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M3/145—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M3/155—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only
- H02M3/156—Conversion of dc power input into dc power output without intermediate conversion into ac by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only with automatic control of output voltage or current, e.g. switching regulators
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J3/00—Circuit arrangements for ac mains or ac distribution networks
- H02J3/12—Circuit arrangements for ac mains or ac distribution networks for adjusting voltage in ac networks by changing a characteristic of the network load
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/10—Technologies improving the efficiency by using switched-mode power supplies [SMPS], i.e. efficient power electronics conversion e.g. power factor correction or reduction of losses in power supplies or efficient standby modes
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Dc-Dc Converters (AREA)
- Circuit Arrangement For Electric Light Sources In General (AREA)
- Rectifiers (AREA)
Abstract
The invention discloses an electronic switch regulating circuit based on hybrid power supply and a power supply, wherein the electronic switch regulating circuit comprises: the device comprises a detection module, a control module, an adjustment module, a hybrid power supply module, a voltage dividing type electricity taking module and a current coupling type electricity taking module; the detection module is used for sending the detected live wire alternating current passing signal to the control module; the control module outputs an adjusting control signal to control an electronic switch of the adjusting module so as to adjust the load; the voltage-dividing type electricity taking module and the current-coupling type electricity taking module are respectively connected with the hybrid power supply module to output power, and the hybrid power supply module is connected with the control module to control power supply through the voltage-dividing type electricity taking module and/or the current-coupling type electricity taking module. The invention can ensure that the effective capacity of the load is fully exerted and the obtained power supply is stable and reliable.
Description
Technical Field
The invention relates to the technical field of electronic switch regulating circuits, in particular to an electronic switch regulating circuit based on hybrid power supply and a power supply.
Background
Electronic switches can be divided into two major types, namely an L (fire) line-N (zero) line type and a single L (fire) line type according to different power supply modes, and currently, the electronic switches are mostly used in the market in the mode of L (fire) line-N (zero) line type. There are many applications in which the electronic switch can only be connected in series to the L (fire) line due to the limitation of the power supply condition, i.e., a single fire wire type, such as a typical dimmer switch. The power supply of the electronic switch is innovation of a power supply of the electronic switch powered by a single live wire, and referring to a schematic diagram of a typical electronic switch regulating circuit powered by the single live wire shown in fig. 1, the power supply is generally powered by adopting a voltage division type power taking mode in the prior art, specifically, the live wire is led out of the power supply through a first diode D1 and a second diode D2 and then is treated by a third switching tube Q3 and a first voltage stabilizing module IC1 to be used as the power supply; the main principle is that the first switching tube Q1 and the second switching tube Q2 are not conducted (see the diagram of figure 2) or are in a light-load state (see the diagram of figure 3), wherein the period of the shaded part t1 represents that the switching tube is turned on, the period of the blank part t2 represents that the switching tube is not turned on), and the voltage is stabilized by the third switching tube Q3 and the first voltage stabilizing module IC1 to serve as a power supply, so that when the first switching tube Q1 and the second switching tube Q2 are close to full conduction (see the diagram of figure 4) until the switching tube Q1 and the second switching tube Q2 are fully conducted (see the diagram of figure 5), the power supply is unreliable and even zero; if the power supply taken out by the power supply is to be ensured to be reliable, the first switching tube Q1 and the second switching tube Q2 are required to be kept non-conductive for a certain period of time, for example, t2 in fig. 4 is required to be kept non-conductive for a certain period of time to meet the requirement of the acquisition of the control power supply, but if the non-conductive for a certain period of time is kept, the effective capacity of the load is not fully utilized, so that the output is insufficient and the effective capacity of the load is wasted.
Disclosure of Invention
The invention mainly aims to provide an electronic switch regulating circuit based on hybrid power supply and a power supply, which can ensure that the effective capacity of a load can be fully exerted and the obtained power supply is stable and reliable.
The invention adopts the following technical scheme:
In one aspect, the invention provides an electronic switch regulating circuit based on mixed power supply, comprising: the device comprises a detection module, a control module and an adjustment module; the detection module is used for sending the detected live wire alternating current signal to the control module; the control module outputs an adjusting control signal to control an electronic switch of the adjusting module so as to adjust the load; the electronic switching regulating circuit further includes: the system comprises a hybrid power supply module, a voltage dividing type power taking module and a current coupling type power taking module; the voltage-dividing type electricity taking module and the current-coupling type electricity taking module are respectively connected with the hybrid power supply module to output power, the voltage-dividing type electricity taking module is used for acquiring power from a single live wire, and the current-coupling type electricity taking module is used for acquiring power from the output end or the input end of the adjusting module; the hybrid power supply module is connected with the control module to control the voltage-dividing power taking module and/or the current-coupling power taking module to provide power supply, so that the electronic switch controlled by the single live wire can obtain reliable control power supply when being started, light-load, heavy-load, full-load and full-load during standby.
Preferably, the electronic switching regulating circuit further includes: a driving module; the control module outputs an adjusting control signal to control an electronic switch of the adjusting module through the driving module so as to adjust the load; the hybrid power supply module is connected with the driving module to control power supply through the voltage dividing type power taking module and/or the current coupling type power taking module.
Preferably, the current coupling type electricity taking module comprises: the power taking element, the rectifier bridge stack, the DC/DC converter and the second voltage stabilizing module; the power taking element is connected in series between the output end of the adjusting module and the load, or connected in series between the input end of the adjusting module and the power supply; the power taking element is connected to the input end of the DC/DC converter after being rectified by the rectifier bridge stack; the output end of the DC/DC converter is connected to one input end of the hybrid power supply module after being stabilized by the second voltage stabilizing module.
Preferably, the current coupling power taking module further includes: a fourth diode; the anode of the fourth diode is connected with the output end of the second voltage stabilizing module, and the cathode of the fourth diode is connected with one input end of the hybrid power supply module.
Preferably, the electricity taking element comprises a current transformer, a high-power resistor or an inductor.
Preferably, the electricity taking element is a current transformer; the current coupling type electricity taking module further comprises a first inductor; the first inductor is connected between the current transformer and the rectifier bridge stack; the primary side of the current transformer is connected between the output end of the adjusting module and a load, or the primary side of the current transformer is connected between the input end of the adjusting module and a power supply; and the secondary side of the current transformer is connected with the rectifier bridge stack.
Preferably, the adjusting module comprises a first switch tube, a second switch tube, a first resistor and a second resistor; the input end of the first switching tube is connected with the live wire end through a power switch, the control end of the first switching tube receives the adjusting control signal, the output end of the first switching tube is connected with the input end of the second switching tube through the first resistor and the second resistor, the control end of the second switching tube receives the adjusting control signal, and the output end of the second switching tube is connected with the zero line end through the current coupling type electricity taking module and a load; or the fire wire end is connected with the input end of the first switching tube through a power switch and the current coupling type electricity taking module, the control end of the first switching tube receives the adjusting control signal, the output end of the first switching tube is connected with the input end of the second switching tube through the first resistor and the second resistor, the control end of the second switching tube receives the adjusting control signal, and the output end of the second switching tube is connected with the zero wire end through a load.
Preferably, the first switch tube comprises an MOS tube, a silicon controlled rectifier or a thyristor; the second switching tube comprises an MOS tube, a controllable silicon or a thyristor.
Preferably, the voltage dividing type electricity taking module comprises a first diode, a second diode, a third resistor, a sixth resistor, a third switching tube, a first capacitor and a first voltage stabilizing module; the anode of the first diode is connected between the switch and the input end of the regulating module; the anode of the second diode is connected between the load and the output end of the regulating module; cathodes of the first diode and 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 switching tube; the other end of the sixth resistor is connected with one end of the first capacitor and the input end of the first voltage stabilizing module respectively; the other end of the first capacitor is grounded; the output end of the first voltage stabilizing module is connected with the other input end of the hybrid power supply module.
Preferably, the voltage dividing type electricity taking module further comprises a third diode; the anode of the third diode is connected with the output end of the first voltage stabilizing module, and the cathode of the third diode is connected with the other input end of the hybrid power supply module.
On the other hand, the power supply of the electronic switch regulating circuit comprises the hybrid power supply module, the voltage dividing type power taking module and the current coupling type power taking module.
Compared with the prior art, the invention has the following beneficial effects:
(1) The invention relates to an electronic switch regulating circuit based on mixed power supply, which adopts a mixed power supply mode of voltage-dividing power taking and current-coupling power taking to supply power, and is characterized in that when the electronic switch is started (a first switch tube Q1 and a second switch tube Q2 are not conducted) or lightly loaded (the conduction time of the first switch tube Q1 and the second switch tube Q2 is short), the power obtained by voltage-dividing is mainly used, and when the electronic switch is heavily loaded (the first switch tube Q1 and the second switch tube Q2 are close to fully conducted or fully conducted), the power obtained by current-coupling power is mainly used, namely, the power is supplied in a mode of mixed parallel power supply by voltage-dividing power taking and current-coupling power taking, so that the electronic switch can obtain reliable control power, and the electronic switch can flexibly and reliably control the load, and the reliable control the reliable power necessary for realizing remote and intelligent control on the switch and the electric of a single-live wire control system is realized, and the reliable power supply module is provided for a control unit, a radio frequency module and the like;
(2) According to the electronic switch regulating circuit based on hybrid power supply, the voltage-dividing power taking module and the current-coupling power taking module are connected to the hybrid power supply module through the third diode and the fourth diode respectively, so that reverse protection effect is achieved, the voltage-dividing power taking module and the current-coupling power taking module are mutually isolated, and the independence of power taking of the voltage-dividing power taking module and the current-coupling power taking module is guaranteed.
The foregoing description is only an overview of the present invention, and is intended to provide a more clear understanding of the technical means of the present invention, so that it may be carried out in accordance with the teachings of the present specification, and to provide a more complete understanding of the above and other objects, features and advantages of the present invention, as exemplified by the following detailed description.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of the specific embodiments of the present invention when taken in conjunction with the accompanying drawings.
Drawings
FIG. 1 is a prior art single-hot powered electronic switching regulator circuit diagram;
FIG. 2 is a waveform diagram of an electronic switch when not conducting or waiting;
FIG. 3 is a waveform diagram of an electronic switch operating in a light load state;
FIG. 4 is a waveform diagram of an electronic switch operating in a heavy load condition;
FIG. 5 is a waveform diagram of an electronic switch operating in a full load state;
FIG. 6 is a block diagram of a hybrid power based electronic switch regulating circuit according to a first embodiment of the present invention;
FIG. 7 is a circuit diagram of a hybrid power based electronic switch regulation circuit according to a first embodiment of the present invention;
FIG. 8 is a block diagram of a hybrid power based electronic switch regulating circuit according to a second embodiment of the present invention;
Fig. 9 is a circuit diagram of an electronic switch adjusting circuit based on hybrid power supply according to a second embodiment of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the present invention more apparent, the embodiments of the present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 6 and 7, in one aspect, the present invention provides an electronic switch regulating circuit based on hybrid power supply, comprising: the device comprises a detection module 11, a control module 12, an adjusting module 13, a hybrid power supply module 14, a voltage division type electricity taking module 15 and a current coupling type electricity taking module 16. The detection module 11 comprises a zero-crossing detection module, which is used for detecting zero crossing points of live wire alternating current and outputting zero-crossing detection signals to the control module 12; the control module 12 receives the zero-crossing detection signal and outputs an adjustment control signal according to the zero-crossing detection information to control the electronic switch of the adjustment module 13 so as to adjust the load RL; the voltage division type electricity taking module 15 and the current coupling type electricity taking module 16 are respectively connected with the hybrid power supply module 14 to output power, the voltage division type electricity taking module 15 is used for obtaining power from a single live wire, and the current coupling type electricity taking module 16 is used for obtaining power from the output end of the regulating module 13; the hybrid power supply module 14 is connected with the control module 12 to control the power supply through the voltage dividing type power taking module 15 and/or the current coupling type power taking module 16, so that the electronic switch controlled by the single live wire can obtain reliable control power supply when being started, light-load, heavy-load, full-load and shutdown when being full-load during standby. 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 switching regulating 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 driving module 17 so as to adjust the load RL; the hybrid power supply module 14 is connected with the driving module 17 to control the power supply through the voltage dividing type power taking module 15 and/or the current coupling type power taking module 16.
The load comprises a resistive or capacitive load, such as an electronic product load of a lamp, a lighting product or an electrothermal product; the control module outputs a regulation control signal to control an electronic switch of the regulation module to regulate power to the resistive or capacitive load. In addition, the load can also be an inductive load, such as an inductive load of a fan, a motor and the like, and the control module outputs a regulating control signal to control an electronic switch of the regulating module so as to regulate the speed or the power of the inductive load.
Specifically, the driving module 17 includes a driving chip, and is configured to amplify the adjustment control signal output by the control module 12 and output the amplified adjustment control signal to the adjustment module 13 to drive the first switching tube Q1 and the second switching tube Q2. In other embodiments, the first switching tube Q1 and the second switching tube Q2 may also be driven using a push-pull circuit composed of discrete elements.
Specifically, the hybrid power supply module 14 may determine who provides the power according to the power output by the voltage dividing power taking module 15 and the current coupling power taking module 16, and if the power output by the voltage dividing 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 take-off module 16 is large, the control module 12 or the like is selectively powered by the current-coupled power take-off module 16. Of course, the power sources output by the voltage dividing power taking module 15 and the current coupling power taking module 16 may be comprehensively utilized, for example, the sum of the two power sources is taken for power supply, and the embodiment of the invention is not particularly limited in a specific manner.
Further, the current-coupled power taking module 16 includes: the power taking element, the rectifier bridge BD1, the DC/DC converter, the second voltage stabilizing module IC2 and the fourth diode D4; the power taking element comprises, but is not limited to, a current transformer CT, a high-power resistor or an inductor.
In this embodiment, the electricity-taking element is a current transformer CT; the current coupling power taking module 16 further comprises a first inductor L1; materials used for the CT magnetic core of the current transformer include, but are not limited to, silicon steel, ultracrystalline or permalloy.
Further, the adjusting module 13 includes: the switching device comprises a first switching tube Q1, a second switching tube Q2, a first resistor R1 and a second resistor R2. The first switching tube Q1 comprises, but is not limited to, a MOS tube, a silicon controlled rectifier or a thyristor; the second switching tube Q2 includes, but is not limited to, a MOS tube, a thyristor, or a thyristor.
The input end of the first switching tube Q1 is connected with the live wire end L through a power switch K; the control end of the first switching tube Q1 receives the adjusting control signal; the output end of the first switching tube Q1 is connected with the input end of the second switching tube Q2 through the first resistor R1 and the second resistor R2; the control end of the second switching tube Q2 receives the adjusting control signal; the output end of the second switching tube Q2 is connected with the zero line end N through the current coupling power taking module 16 and the load RL.
Specifically, the power switch K connected to the live wire end L may be a push button switch or a push button switch, as long as the same function as the present invention can be achieved.
In this embodiment, the first switching tube Q1 and the second switching tube Q2 are N-channel field effect tubes (N-channel MOS tubes), the control end, the input end and the output end of the first switching tube Q1 are respectively corresponding to the gate, the drain and the source of the N-channel field effect tube, and the control end, the input end and the output end of the second switching tube Q2 are respectively corresponding to the gate, the source and the drain of the N-channel field effect tube. In other embodiments, the first switching tube Q1 and the second switching tube Q2 may be other types of switching devices, such as thyristors or thyristors, as long as the same function as the present invention can be achieved.
In this embodiment, the adjusting module 13 receives the adjusting control signal output by the control module 12, and controls the conduction condition of the first switching tube Q1 and the second switching tube Q2 according to the adjusting control signal. The control module 12 controls the switching duty ratio of the first switching tube Q1 and the second switching tube Q2 through the pulse width modulation signal, so that the consumption power of the load RL is adjusted, and the adjusting function of the load RL is realized; if the load RL is a fan, the speed of the fan is adjusted, and the larger the duty ratio is, the larger the power of the fan is, and the faster the speed of the fan is. Of course, the load RL of the present invention may be other adjustable devices, and embodiments of the present invention are not limited in particular.
Specifically, the primary side of the current transformer CT is connected between the output end of the adjusting module 13 and the load RL; the secondary side of the current transformer CT is connected to the rectifier bridge BD1 through the first inductor L1, and the rectifier bridge BD1 is connected to the input end of the DC/DC converter after being rectified; the output end of the DC/DC converter is stabilized by the second voltage stabilizing module IC 2; the anode of the fourth diode D4 is connected to the output end of the second voltage stabilizing module IC2, and the cathode of the fourth diode D4 is connected to an input end of the hybrid power supply module 14. In this embodiment, the output end of the adjusting module 13 is the output end of the second switching tube Q2.
Further, the voltage dividing and voltage 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, a voltage stabilizing tube ZD2, a third switching tube Q3, a first capacitor C1 and a first voltage stabilizing module IC1.
In this embodiment, the third switching tube Q3 is an NPN triode, and in other embodiments, the third switching tube Q3 may be another type of switching device, as long as the same function as the present invention can be achieved.
Specifically, the anode of the first diode D1 is connected between the switch and the input end of the adjusting module 13 (in this embodiment, the input end of the adjusting module 13 is the input end of the first switching tube Q1); the anode of the second diode D2 is connected between the load RL and the primary side of the current transformer CT; cathodes of the first diode D1 and the second diode D2 are respectively connected to one end of the third resistor R3; the other end of the third resistor R3 is connected with the collector electrode of the third switching tube Q3; an emitter of the third switching tube Q3 is connected with one end of the sixth resistor R6; the fourth resistor R4 is connected between the collector and the base of the third switching tube Q3; the fifth resistor R5 is connected between the emitter and the base of the third switching tube Q3; the cathode of the voltage stabilizing tube ZD2 is connected with the base electrode of the third switching tube Q3, and the anode of the voltage stabilizing tube ZD2 is grounded; the other end of the sixth resistor R6 is respectively connected with one end of the first capacitor C1 and the input end of the first voltage stabilizing module IC 1; the other end of the first capacitor C1 is grounded; the output end of the first voltage stabilizing module IC1 is connected with the other input end of the hybrid power supply module 14; one end of the detection module is connected with the cathodes of the first diode D1 and the second diode D2 respectively, and the other end of the detection module is connected to the control module 12.
The voltage dividing type electricity taking module 15 further comprises a third diode; the anode of the third diode is connected with the output end of the first voltage stabilizing module IC1, and the cathode of the third diode is connected with the other input end of the hybrid power supply module 14.
On the other hand, the power supply of the electronic switch regulating circuit comprises the hybrid power supply module 14, the voltage dividing type power taking module 15 and the current coupling type power taking module 16; the power supply provides reliable control power for electronic switches in various working states; the various working states comprise startup during standby, light load, heavy load, full load and shutdown during full load; the electronic switch is a single live wire controlled electronic switch and comprises an MOS tube, a silicon controlled rectifier or a thyristor, and in the embodiment, the electronic switch comprises a first switching tube Q1 and a second switching tube Q2, and the first switching tube Q1 and the second switching tube Q2 are N-channel field effect transistors.
The invention utilizes the longer the conduction period t1 of the first switching tube Q1 and the second switching tube Q2 in the electronic switch controlled by a single live wire, the larger the current flowing through the load RL is, the more the energy is coupled to the secondary side by the current transformer CT connected in the main current loop in series, the energy can be reliably obtained as the control power supply of the control loop, the problem that the energy of the power supply is insufficient when the voltage division type power supply mode is powered off in heavy load, full load and full load is well solved, and the current coupling type power supply mode can provide the required power supply when the power supply is powered off in heavy load, full load and full load, so that the two power supplies are in parallel connection with each other to ensure that the power supply is more reliable.
Specifically, when the power switch K is turned on, the first switching tube Q1 and the second switching tube Q2 receive the adjustment control signal of the control module 12 and then work, and when the first switching tube Q1 and the second switching tube Q2 work, current passes through the power switch K, the first switching tube Q1, the first resistor R1, the second resistor R2, the second switching tube Q2 and the current transformer CT to supply power to the load RL. When the electronic switch is started or lightly loaded in standby, the conduction time of the first switching tube Q1 and the second switching tube Q2 is relatively short, and the electronic switch is mainly used for taking electricity through the first diode D1 and the second diode D2, and then is used as one group of power supply VCC1 required by the electronic switch control after the voltage stabilizing network voltage stabilizing treatment is formed through the elements such as the second resistor R2, the third triode, the sixth resistor R6, the first voltage stabilizing module IC1, the fourth resistor R4, the voltage stabilizing tube ZD2, the fifth resistor R5, the first capacitor C1, the second capacitor and the like. During heavy load, full load operation and shutdown operation in full load, because the first switching tube Q1 and the second switching tube Q2 are close to full conduction or full conduction, the energy obtained by the voltage-dividing power supply is smaller, for example, the energy obtained by the voltage-dividing power supply in full conduction of the first switching tube Q1 and the second switching tube Q2 is smaller and even zero, but the current flowing through the load RL is larger, and meanwhile, the current flows through the primary side of the current transformer CT which is connected in series in the main current loop, under the working condition, the more energy is coupled to the secondary side of the current transformer CT, the energy can be obtained very reliably, and then the energy is converted and processed by the elements such as the first inductor L1, the rectifier bridge BD1, the DC/DC converter, the second voltage stabilizing module IC2, the third capacitor and the fourth capacitor to form the other group of power supply VCC2 which is required by the electronic switch voltage stabilizing control; the VCC1 is isolated by the third diode and the VCC2 by the fourth diode D4 to form a parallel hybrid power supply, and the parallel hybrid power supply is provided for a reliable and stable working power supply required by the electronic switch.
The combination of the power supplies is mainly obtained by voltage division during the starting-up or light-load operation in standby, the power supply is mainly obtained by CT coupling of a current transformer during heavy load, full load and full load, and the power supply is carried out in a mode of obtaining the working power supply by mixing and parallel power supply, so that the electronic switch controlled by a single live wire can be effectively ensured to obtain reliable working power supplies under various working conditions such as starting-up, light load, heavy load, full load and full load during standby, and the like, and the flexible and reliable control of the switch to the load RL is satisfied.
Example two
Referring to fig. 8 and 9, an electronic switch regulating circuit based on hybrid power supply of the present invention includes: the device comprises a detection module 11, a control module 12, an adjusting module 13, a hybrid power supply module 14, a voltage division type electricity taking module 15 and a current coupling type electricity taking module 16. The detection module 11 comprises a zero-crossing detection module, which is used for detecting zero crossing points of live wire alternating current and outputting zero-crossing detection signals to the control module 12; the control module 12 receives the zero-crossing detection signal and outputs an adjustment control signal according to the zero-crossing detection information to control the electronic switch of the adjustment module 13 so as to adjust the load RL; the voltage division type electricity taking module 15 and the current coupling type electricity taking module 16 are respectively connected with the hybrid power supply module 14 to output power, the voltage division type electricity taking module 15 is used for obtaining power from a single live wire, and the current coupling type electricity taking module 16 is used for obtaining power from the input end of the adjusting module 13; the hybrid power supply module 14 is connected with the control module 12 to control the power supply through the voltage dividing type power taking module 15 and/or the current coupling type power taking module 16, so that the electronic switch controlled by the single live wire can obtain reliable control power supply when being started, light-load, heavy-load, full-load and shutdown when being full-load during standby. The electronic switch includes, but is not limited to, a MOS transistor, a thyristor, or a thyristor.
The difference between this embodiment and the first embodiment is that the current-coupled power taking module 16 is disposed between the power switch and the input terminal of the adjusting module 13. The circuit connection relationship and principle of other parts are the same as those of the embodiment, and the description of the embodiment will not be repeated.
The foregoing is merely illustrative of specific embodiments of the present invention, but the design concept of the present invention is not limited thereto, and any insubstantial modification of the present invention by using the design concept shall fall within the scope of the present invention.
Claims (10)
1. An electronic switching regulating circuit based on hybrid power supply, comprising: the device comprises a detection module, a control module and an adjustment module; the detection module is used for sending the detected live wire alternating current signal to the control module; the control module outputs an adjusting control signal to control an electronic switch of the adjusting module so as to adjust the load; characterized by further comprising: the system comprises a hybrid power supply module, a voltage dividing type power taking module and a current coupling type power taking module; the voltage-dividing type electricity taking module and the current-coupling type electricity taking module are respectively connected with the hybrid power supply module to output power, the voltage-dividing type electricity taking module is used for acquiring power from a single live wire, and the current-coupling type electricity taking module is used for acquiring power from the output end or the input end of the adjusting module; the mixed power supply module is connected with the control module to control the voltage-dividing power taking module and/or the current-coupling power taking module to provide a power supply, so that the electronic switch controlled by a single live wire can obtain reliable control power supply when being started, light-load, heavy-load, full-load and full-load during standby;
The adjusting module comprises a first switching tube, a second switching tube, a first resistor and a second resistor; the input end of the first switching tube is connected with the live wire end through a power switch, the control end of the first switching tube receives the adjusting control signal, the output end of the first switching tube is connected with the input end of the second switching tube through the first resistor and the second resistor, the control end of the second switching tube receives the adjusting control signal, and the output end of the second switching tube is connected with the zero line end through the current coupling type electricity taking module and a load; or the fire wire end is connected with the input end of the first switching tube through a power switch and the current coupling type electricity taking module, the control end of the first switching tube receives the adjusting control signal, the output end of the first switching tube is connected with the input end of the second switching tube through the first resistor and the second resistor, the control end of the second switching tube receives the adjusting control signal, and the output end of the second switching tube is connected with the zero wire end through a load.
2. The hybrid-power-based electronic switching regulator circuit of claim 1, further comprising: a driving module; the control module outputs an adjusting control signal to control an electronic switch of the adjusting module through the driving module so as to adjust the load; the hybrid power supply module is connected with the driving module to control power supply through the voltage dividing type power taking module and/or the current coupling type power taking module.
3. The hybrid-power-based electronic switching regulator circuit of claim 1, wherein the current-coupled power extraction module comprises: the power taking element, the rectifier bridge stack, the DC/DC converter and the second voltage stabilizing module; the power taking element is connected in series between the output end of the adjusting module and the load, or connected in series between the input end of the adjusting module and the power supply; the power taking element is connected to the input end of the DC/DC converter after being rectified by the rectifier bridge stack; the output end of the DC/DC converter is connected to one input end of the hybrid power supply module after being stabilized by the second voltage stabilizing module.
4. The hybrid-power-based electronic switch regulation circuit of claim 3 wherein the current-coupled power extraction module further comprises: a fourth diode; the anode of the fourth diode is connected with the output end of the second voltage stabilizing module, and the cathode of the fourth diode is connected with one input end of the hybrid power supply module.
5. A hybrid-power-based electronic switching regulator circuit according to claim 3, wherein the power harvesting element comprises a current transformer, a high-power resistor, or an inductor.
6. The hybrid-power-based electronic switch regulating circuit of claim 3, wherein said power take-off element is a current transformer; the current coupling type electricity taking module further comprises a first inductor; the first inductor is connected between the current transformer and the rectifier bridge stack; the primary side of the current transformer is connected between the output end of the adjusting module and a load, or the primary side of the current transformer is connected between the input end of the adjusting module and a power supply; and the secondary side of the current transformer is connected with the rectifier bridge stack.
7. The hybrid power supply based electronic switching regulator circuit of claim 1, wherein the first switching tube comprises a MOS tube, a thyristor, or a thyristor; the second switching tube comprises an MOS tube, a controllable silicon or a thyristor.
8. The hybrid power supply based electronic switch regulating circuit of claim 1, wherein the voltage dividing power taking module comprises a first diode, a second diode, a third resistor, a sixth resistor, a third switching tube, a first capacitor and a first voltage stabilizing module; the anode of the first diode is connected between the switch and the input end of the regulating module; the anode of the second diode is connected between the load and the output end of the regulating module; cathodes of the first diode and 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 switching tube; the other end of the sixth resistor is connected with one end of the first capacitor and the input end of the first voltage stabilizing module respectively; the other end of the first capacitor is grounded; the output end of the first voltage stabilizing module is connected with the other input end of the hybrid power supply module.
9. The hybrid-power-based electronic switch regulation circuit of claim 8 wherein the voltage step-up power harvesting module further comprises a third diode; the anode of the third diode is connected with the output end of the first voltage stabilizing module, and the cathode of the third diode is connected with the other input end of the hybrid power supply module.
10. A power supply of an electronic switching regulating circuit, characterized by comprising a hybrid power supply module according to any one of claims 1 to 9, a voltage dividing power taking module and a current coupling power taking module.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811074151.6A CN109245525B (en) | 2018-09-14 | 2018-09-14 | Electronic switch regulating circuit based on hybrid power supply and power supply |
| PCT/CN2019/090735 WO2020052296A1 (en) | 2018-09-14 | 2019-06-11 | Hybrid power supply-based electronic switch adjusting circuit and power supply |
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| CN201811074151.6A CN109245525B (en) | 2018-09-14 | 2018-09-14 | Electronic switch regulating circuit based on hybrid power supply and power supply |
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| CN109245525B true CN109245525B (en) | 2024-07-09 |
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| CN109245525B (en) * | 2018-09-14 | 2024-07-09 | 厦门天力源光电科技有限公司 | Electronic switch regulating circuit based on hybrid power supply and power supply |
| CN110165760B (en) * | 2019-04-16 | 2024-06-21 | 杰华特微电子股份有限公司 | Control method and control circuit of single-live-wire charging circuit and single-live-wire charging circuit |
| CN110300480A (en) * | 2019-08-07 | 2019-10-01 | 苏州迪芬德物联网科技有限公司 | A kind of diode single fire line control circuit |
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| CN208874471U (en) * | 2018-09-14 | 2019-05-17 | 厦门天力源光电科技有限公司 | A kind of electronic switch adjusting circuit and power supply based on hybrid power supply |
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| US6980441B2 (en) * | 2003-07-28 | 2005-12-27 | Astec International Limited | Circuit and method for controlling a synchronous rectifier in a power converter |
| US7282863B2 (en) * | 2005-07-11 | 2007-10-16 | Varon Lighting Group, Llc | Auxiliary quartz lamp lighting system for electronic high intensity discharge lamp ballasts |
| CN102292786B (en) * | 2008-12-22 | 2014-08-27 | 松下电器产业株式会社 | Load control device |
| CN201450643U (en) * | 2009-07-31 | 2010-05-05 | 梁绍辉 | Remote control power switch and a power switch system |
| CN103427675A (en) * | 2012-05-21 | 2013-12-04 | 施耐德电气东南亚(总部)有限公司 | Converter for converting alternating current into direct current |
| CN104617778B (en) * | 2015-02-10 | 2017-08-25 | 兰州空间技术物理研究所 | The low current output high-voltage power circuit of wide input voltage range high capacity regulation |
| EP3367761B1 (en) * | 2015-09-04 | 2020-05-27 | Lutron Technology Company LLC | Load control device for high-efficiency loads |
| CN105406851B (en) * | 2015-12-17 | 2018-07-06 | 北京昊恒天科技有限公司 | A kind of list firewire switch |
| CN106488619B (en) * | 2016-12-06 | 2018-11-09 | 东莞市罗姆斯智能家居有限公司 | A kind of list live-line double-control switch connection circuit |
| US9837928B1 (en) * | 2017-03-24 | 2017-12-05 | Loong Yee Industrial Corp., Ltd. | Single fire-wire phase-front dynamic AC power fetching module |
| CN206650419U (en) * | 2017-04-26 | 2017-11-17 | 国网黑龙江省电力有限公司绥化供电公司 | Electrical fuse circuit for load control |
| JP3213057U (en) * | 2017-06-09 | 2017-10-19 | 隆怡工業股▲ふん▼有限公司Ｌｏｏｎｇ Ｙｅｅ Ｉｎｄｕｓｔｒｉａｌ Ｃｏｒｐ．， Ｌｔｄ． | Single firewire dynamic in-phase fetch circuit module for AC power |
| CN109245525B (en) * | 2018-09-14 | 2024-07-09 | 厦门天力源光电科技有限公司 | Electronic switch regulating circuit based on hybrid power supply and power supply |
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| CN208874471U (en) * | 2018-09-14 | 2019-05-17 | 厦门天力源光电科技有限公司 | A kind of electronic switch adjusting circuit and power supply based on hybrid power supply |
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| WO2020052296A1 (en) | 2020-03-19 |
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