CN108882483B - Three-way control single live wire power taking system - Google Patents
Three-way control single live wire power taking system Download PDFInfo
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- CN108882483B CN108882483B CN201810747361.0A CN201810747361A CN108882483B CN 108882483 B CN108882483 B CN 108882483B CN 201810747361 A CN201810747361 A CN 201810747361A CN 108882483 B CN108882483 B CN 108882483B
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- 230000000087 stabilizing effect Effects 0.000 claims abstract description 24
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims abstract description 20
- 229910052710 silicon Inorganic materials 0.000 claims abstract description 20
- 239000010703 silicon Substances 0.000 claims abstract description 20
- 239000003990 capacitor Substances 0.000 claims description 27
- 239000003381 stabilizer Substances 0.000 claims description 24
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05B—ELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
- H05B47/00—Circuit arrangements for operating light sources in general, i.e. where the type of light source is not relevant
- H05B47/10—Controlling the light source
-
- 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
- Y02B20/00—Energy efficient lighting technologies, e.g. halogen lamps or gas discharge lamps
- Y02B20/40—Control techniques providing energy savings, e.g. smart controller or presence detection
Abstract
The invention discloses a three-way control single-live wire power taking system which comprises a silicon controlled rectifier control circuit, a power taking circuit and a voltage reducing and stabilizing circuit, wherein the input end of the silicon controlled rectifier control circuit is connected with a wiring terminal, the output end of the silicon controlled rectifier control circuit is connected with the input end of the power taking circuit, the input end of the voltage reducing and stabilizing circuit is connected with the wiring terminal, and the output end of the voltage reducing and stabilizing circuit is connected with the input end of the power taking circuit.
Description
Technical Field
The invention relates to a single-live-wire power taking circuit, in particular to a three-way control single-live-wire power taking system.
Background
In the intelligent household lighting control system, the single-live wire power-taking control switch is used, and the current output on the single-live wire power-taking control switch is small enough to support the operation of modules with more than 180MA, so that when the starting switch is a relay with high starting power requirement, the working performance of the power-taking control switch is unstable, the reliability is poor, the electronic switch adopting the single-live wire is also arranged on the market at present, but can only be connected with a load in a single-control mode, the multi-control function cannot be realized, namely, the working mode of controlling a street lamp by a plurality of switches cannot be realized, inconvenience is brought to the use, and popularization and application are also unfavorable.
Disclosure of Invention
In order to solve the problems in the prior art, the invention aims to provide a three-way control single-live-wire power taking system which has the advantages of larger single-live-wire power taking current output and support of being connected with a load in a multi-way control mode.
In order to achieve the above purpose, the invention adopts the following technical scheme: the power supply circuit comprises a silicon controlled rectifier control circuit, a power taking circuit and a voltage reducing and stabilizing circuit, wherein the input end of the silicon controlled rectifier control circuit is connected with a wiring terminal, the output end of the silicon controlled rectifier control circuit is connected with the input end of the power taking circuit, the input end of the voltage reducing and stabilizing circuit is connected with the wiring terminal, and the output end of the voltage reducing and stabilizing circuit is connected with the input end of the power taking circuit.
Preferably, the thyristor Control circuit includes a first Control circuit, a second Control circuit and a third Control circuit, the second Control circuit includes a fuse F1, a resistor, a thyristor BTA24800B, a diode, a photoelectric coupler and a triode, pin No. 3 of the wiring terminal is connected back to pin No. 1 of the wiring terminal through the fuse F1 and the thyristor BTA24800B, the Control stage of the thyristor BTA24800B is connected to pin No. 4 of the photoelectric coupler after being reversely connected in series through a diode D1 and a diode D2, the fuse F1 is connected to the Control stage of the thyristor BTA24800B through a resistor R1, pin No. 1 of the wiring terminal is connected to pin No. 6 of the photoelectric coupler through a resistor R3 and a stable voltage source of 3.3V, pin No. 2 of the photoelectric coupler is connected to a collector of the triode Q1, an emitter of the triode Q1 is grounded through a resistor R4 and then connected to a cathode of the diode D3, a base electrode of the triode Q1 is connected to a base electrode of the triode 2 through a resistor R4 and a resistor C2 and a Control circuit is connected to the third Control circuit in parallel.
Preferably, the circuit of getting includes BR1 bridge chip, the diode, electric capacity and stabiliser U1, ground after the negative pole of BR1 bridge chip's No. 2 pin connects in diode D4, the positive pole back of BR1 bridge chip's No. 2 pin connects diode D5 with 5.0V's stable voltage source links to each other, the negative pole of diode D5 is ground after electric capacity C2, and electric capacity C2 connects in parallel between stabiliser U1's No. 3 pin and stabiliser U1's No. 1 pin, stabiliser U1's No. 1 pin ground, stabiliser U1's No. 2 pin ground, stabiliser U1's No. 4 pin links to each other with 51 singlechip JP 1's No. 8 pin, there is electric capacity C3 between stabiliser U1's No. 4 pin and No. 2 pin, stabiliser U1's No. 4 pin is ground through electric capacity C3.
Preferably, the first control circuit is further connected to the power taking circuit, the pin No. 2 of the connection terminal is connected to the pin No. 1 of the BR1 bridge chip after passing through the fuse F1, the control stage of the silicon controlled rectifier BTA24800B is connected to the pin No. 3 of the BR1 bridge chip after passing through the diode D1 and the diode D2 in reverse series connection, and the pin No. 3 of the BR1 bridge chip is further connected to the pin No. 4 of the photoelectric coupler.
Preferably, the step-down voltage stabilizing circuit comprises a BR2 bridge chip, an electrolytic capacitor, a resistor, a step-down device U2, a voltage stabilizing tube D6 and a transformer T1, wherein the No. 1 pin of the BR2 bridge chip is connected to the No. 2 pin of a wiring terminal, the No. 3 pin of the BR2 bridge chip is connected to the No. 1 pin of the wiring terminal, the No. 2 pin of the BR2 bridge chip is connected with the positive pole of the electrolytic capacitor C4, the positive pole of the electrolytic capacitor C4 is also connected with an AVCC power supply, the No. 4 pin of the BR2 bridge chip is connected with the negative pole of the electrolytic capacitor C4, the negative pole of the electrolytic capacitor C4 is also grounded, the AVCC power supply is connected with the No. 3 pin of the step-down device U2 through a resistor R7, the No. 1 pin of the step-down device U2 is connected with the resistor C5 in parallel through a resistor R7, the No. 1 pin of the step-down device U2 is connected with the secondary of the transformer T1 through a resistor R9 in parallel, the No. 2 pin of the step-down device U2 is connected with the secondary of the step-down device T1 through a resistor T1 in parallel, the No. 2 pin of the step-down device U2 is connected with the C6 in parallel through a resistor T7, the No. 1 is connected with the primary side of the step-down device U2, the step-down device U2 is connected with the primary side of the step-down device U7 through a series connection 7, and the primary side of the step-down device is connected with the step-down device U1, and the primary side of the step-down device is connected with the primary side 7.
In a load closing state, namely in a non-conducting state of the silicon controlled rectifier control circuit, the power taking circuit automatically takes power from the wiring terminal through the step-down voltage stabilizing circuit, and the power taking circuit changes 220V power grid voltage into 3.3V stable low-voltage direct current output to obtain current 1000MA; in the load on state, namely in the on state of the thyristor control circuit, in order to maintain the power supply of the circuit, the current 400MA is obtained through the thyristor control circuit and the power taking circuit, the self power supply problem of the load switch circuit can be solved no matter the load switch is on or off, and the load can realize the multi-path control switch through the three-path thyristor control circuit.
The beneficial effects of the invention are as follows:
(1) The single live wire power-taking current is larger, so that more intelligent devices can be driven;
(2) The support is connected with the load in a three-way control mode, which is superior to the traditional one-way control connection.
Drawings
FIG. 1 is a schematic system diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a circuit connection between a SCR control circuit and a power-taking circuit according to an embodiment of the present invention;
fig. 3 is a schematic diagram of a buck regulator circuit according to an embodiment of the present invention.
Reference numerals illustrate:
1. a thyristor control circuit; 2. a power take-off circuit; 3. a step-down voltage stabilizing circuit; 4. a connection terminal; 5. and (3) loading.
Detailed Description
Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
Example 1:
as shown in fig. 1-3, the three-way control single live wire power taking system comprises a silicon controlled rectifier control circuit 1, a power taking circuit 2 and a voltage reducing and stabilizing circuit 3, wherein the input end of the silicon controlled rectifier control circuit 1 is connected with a wiring terminal 4, the output end of the silicon controlled rectifier control circuit 1 is connected with the input end of the power taking circuit 2, the input end of the voltage reducing and stabilizing circuit 3 is connected with the wiring terminal, and the output end of the voltage reducing and stabilizing circuit 3 is connected with the input end of the power taking circuit 2.
In the state that the load 5 is closed, namely the thyristor control circuit 1 is not conducted, the power taking circuit 2 automatically takes power from the wiring terminal 4 through the step-down voltage stabilizing circuit 3, and the power taking circuit 2 changes the 220V power grid voltage into 3.3V stable low-voltage direct current output to obtain current 1000MA; in the on state of the load 5, namely in the on state of the thyristor control circuit 1, in order to maintain the power supply of the circuit, the current 400MA is obtained through the thyristor control circuit 1 and the power taking circuit 2, no matter whether the load 5 is switched on or off, the self power supply problem of the load 5 switching circuit can be solved, and the load 5 can realize the multi-path control switch through the three-path thyristor control circuit 1.
Example 2:
as shown in fig. 1-3, in this embodiment, based on embodiment 1, the thyristor Control circuit 1 includes a first Control circuit, a second Control circuit and a third Control circuit, the second Control circuit includes a fuse F1, a resistor, a thyristor BTA24800B, a diode, a photo coupler and a triode, pin No. 3 of the connection terminal 4 is connected to pin No. 1 of the terminal 4 through the fuse F1 and the thyristor BTA24800B, the Control stage of the thyristor BTA24800B is connected to pin No. 4 of the photo coupler through the diode D1 and the diode D2 in reverse series, the fuse F1 is connected to the Control stage of the thyristor BTA24800B through the resistor R1, pin No. 1 of the terminal 4 is connected to pin No. 6 of the photo coupler through the resistor R3, pin No. 2 of the photo coupler is connected to the collector of the triode Q1 through the resistor R3, the Control stage Q1 is connected to the base of the same circuit after the diode D2 is connected to the resistor D3, and the triode is connected to the drain terminal 3 through the resistor D4.
Example 3:
as shown in fig. 1-3, in this embodiment, based on embodiment 1, the circuit 2 includes a BR1 bridge chip, a diode, a capacitor and a voltage stabilizer U1, where pin No. 2 of the BR1 bridge chip is connected to the cathode of diode D4 and then grounded, pin No. 2 of the BR1 bridge chip is connected to the anode of diode D5 and then connected to a stable voltage source of 5.0V, the cathode of diode D5 is grounded via capacitor C2, and capacitor C2 is connected in parallel between pin No. 3 of voltage stabilizer U1 and pin No. 1 of voltage stabilizer U1, pin No. 1 of voltage stabilizer U1 is grounded, pin No. 2 of voltage stabilizer U1 is grounded, pin No. 4 of voltage stabilizer U1 is connected to pin No. 8 of 51 single chip JP1, a capacitor C3 is connected between pin No. 4 and pin No. 2 of voltage stabilizer U1, and pin No. 4 of voltage stabilizer U1 is grounded via capacitor C3.
Example 4:
as shown in fig. 1-3, in this embodiment, on the basis of embodiment 1, the first control circuit is further connected to the power supply circuit 2, pin No. 2 of the connection terminal 4 is connected to pin No. 1 of the BR1 bridge chip after passing through the fuse F1, the control stage of the thyristor BTA24800B is connected to pin No. 3 of the BR1 bridge chip after passing through the inverse series connection of the diode D1 and the diode D2, and pin No. 3 of the BR1 bridge chip is further connected to pin No. 4 of the photocoupler.
Example 5:
as shown in fig. 1-3, in this embodiment, based on embodiment 1, the step-down voltage stabilizing circuit 3 includes a BR2 bridge chip, an electrolytic capacitor, a resistor, a step-down device U2, a voltage stabilizing tube D6 and a transformer T1, pin 1 of the BR2 bridge chip is connected to pin 2 of the wiring terminal 4, pin 3 of the BR2 bridge chip is connected to pin 1 of the wiring terminal 4, pin 2 of the BR2 bridge chip is connected to the positive electrode of the electrolytic capacitor C4, the positive electrode of the electrolytic capacitor C4 is further connected to an AVCC power supply, pin 4 of the BR2 bridge chip is connected to the negative electrode of the electrolytic capacitor C4, the negative electrode of the electrolytic capacitor C4 is further grounded, the AVCC power supply is connected to pin 3 of the step-down device U2 via a resistor R6, pin 1 of the step-down device U2 is connected to the resistor R9 after being connected in parallel to the capacitor C5 and resistor R8, pin 1 of the step-down device U2 is connected to the secondary of the transformer T1 after being connected to pin 2 via the resistor C5, pin 2 is connected to the step-down pin 2 is connected to the primary side 6 of the transformer T1, and the primary diode is connected to the primary side 6 after being connected to the voltage stabilizing tube D6, and the primary side of the transformer is connected to the primary side 6.
The foregoing examples merely illustrate specific embodiments of the invention, which are described in greater detail and are not to be construed as limiting the scope of the invention. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the invention, which are all within the scope of the invention.
Claims (1)
1. The three-way control single-live wire power taking system is characterized by comprising a silicon controlled rectifier control circuit, a power taking circuit and a voltage reducing and stabilizing circuit, wherein the input end of the silicon controlled rectifier control circuit is connected with a wiring terminal, the output end of the silicon controlled rectifier control circuit is connected with the input end of the power taking circuit, the input end of the voltage reducing and stabilizing circuit is connected with the wiring terminal, and the output end of the voltage reducing and stabilizing circuit is connected with the input end of the power taking circuit;
the silicon controlled rectifier Control circuit comprises a first Control circuit, a second Control circuit and a third Control circuit, wherein the second Control circuit comprises a fuse F1, a resistor, a silicon controlled rectifier BTA24800B, a diode, a photoelectric coupler and a triode, a pin 3 of a wiring terminal is connected with a pin 1 of the wiring terminal through the fuse F1 and the silicon controlled rectifier BTA24800B, a Control stage of the silicon controlled rectifier BTA24800B is connected with a pin 4 of the photoelectric coupler after being reversely connected in series through a diode D1 and a diode D2, the fuse F1 is connected with the Control stage of the silicon controlled rectifier BTA24800B through a resistor R1, a pin 1 of the wiring terminal is connected with a pin 6 of the photoelectric coupler through a resistor R2, a pin 1 of the photoelectric coupler is connected with a stable voltage source of 3.3V through a resistor R3, a pin 2 of the photoelectric coupler is connected with an emitter of the triode Q1, a cathode of the triode Q1 is connected with a pin 4 of the diode D3 after being connected with a resistor R4, a cathode of the triode Q1 is connected with a collector of the same type of the diode C3, and the cathode of the triode is connected with a Control circuit in parallel through a resistor R5;
the power taking circuit comprises a BR1 bridge chip, a diode, a capacitor and a voltage stabilizer U1, wherein a pin No. 2 of the BR1 bridge chip is connected with the cathode of a diode D4 and then grounded, a pin No. 2 of the BR1 bridge chip is connected with the anode of a diode D5 and then connected with a stable voltage source of 5.0V, the cathode of the diode D5 is grounded after passing through a capacitor C2, the capacitor C2 is connected between a pin No. 3 of the voltage stabilizer U1 and a pin No. 1 of the voltage stabilizer U1 in parallel, the pin No. 1 of the voltage stabilizer U1 is grounded, a pin No. 2 of the voltage stabilizer U1 is grounded, a pin No. 4 of the voltage stabilizer U1 is connected with a pin No. 8 of a 51 single chip microcomputer JP1, a capacitor C3 is connected between the pin No. 4 of the voltage stabilizer U1 and the pin No. 2, and the pin No. 4 of the voltage stabilizer U1 is grounded through the capacitor C3;
the first control circuit is also connected with the power taking circuit, a pin 2 of the wiring terminal is connected with a pin 1 of the BR1 bridge chip after passing through the fuse F1, the control stage of the silicon controlled rectifier BTA24800B is connected with a pin 3 of the BR1 bridge chip after passing through the diode D1 and the diode D2 in reverse series connection, and the pin 3 of the BR1 bridge chip is also connected with a pin 4 of the photoelectric coupler;
the step-down voltage stabilizing circuit comprises a BR2 bridge chip, an electrolytic capacitor, a resistor, a step-down device U2, a voltage stabilizing tube D6 and a transformer T1, wherein the No. 1 pin of the BR2 bridge chip is connected to the No. 2 pin of a wiring terminal, the No. 3 pin of the BR2 bridge chip is connected to the No. 1 pin of the wiring terminal, the No. 2 pin of the BR2 bridge chip is connected with the positive electrode of the electrolytic capacitor C4, the positive electrode of the electrolytic capacitor C4 is also connected with an AVCC power supply, the No. 4 pin of the BR2 bridge chip is connected with the negative electrode of the electrolytic capacitor C4, the negative electrode of the electrolytic capacitor C4 is also grounded, the AVCC power supply is connected with the No. 3 pin of the step-down device U2 through a resistor R6, the No. 1 pin of the step-down device U2 is connected with the resistor R7 in parallel, the No. 1 pin of the step-down device U2 is connected with the resistor R9 through a capacitor C5 and a resistor R8, the No. 1 pin of the step-down device U2 is connected with the secondary of the transformer T1 through a resistor R9 in parallel, the No. 2 pin of the step-down device U2 is connected with the C6 in parallel, the No. 2 pin of the step-down device U2 is connected with the primary side of the step-down device U2 through a voltage stabilizing tube T6, and the step-down device U2 is connected with the primary side 7 in parallel, the primary side of the step-down device is connected with the primary side of the step-down device U2 through a voltage stabilizing tube T6, and the primary side of the step-down device is connected with the primary voltage transformer 7.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810747361.0A CN108882483B (en) | 2018-07-09 | 2018-07-09 | Three-way control single live wire power taking system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810747361.0A CN108882483B (en) | 2018-07-09 | 2018-07-09 | Three-way control single live wire power taking system |
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| CN108882483A CN108882483A (en) | 2018-11-23 |
| CN108882483B true CN108882483B (en) | 2024-01-26 |
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| CN201810747361.0A Active CN108882483B (en) | 2018-07-09 | 2018-07-09 | Three-way control single live wire power taking system |
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| CN108882483A (en) | 2018-11-23 |
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