CN208462120U - A kind of light-operated circuit of changeable control model - Google Patents
A kind of light-operated circuit of changeable control model Download PDFInfo
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- CN208462120U CN208462120U CN201821171047.4U CN201821171047U CN208462120U CN 208462120 U CN208462120 U CN 208462120U CN 201821171047 U CN201821171047 U CN 201821171047U CN 208462120 U CN208462120 U CN 208462120U
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Abstract
The utility model provides a kind of light-operated circuit of changeable control model, including voltage providing unit, MCU controller, illuminance detection unit and relay unit, the MCU controller connection illuminance detection unit and relay unit, voltage providing unit is powered to MCU controller, it further include control mode switch unit, it includes resistance and 0R wire jumper, the resistance front end connects voltage providing unit, rear end is grounded through 0R wire jumper, the contact of AD pin the connection resistance and 0R wire jumper of the MCU controller, the light-operated circuit can carry out switching control mode according to different needs, light-controller using the light-operated circuit of the utility model does not have limitation.
Description
Technical field
The utility model relates to light-operated circuit, in particular to a kind of light-operated circuit of changeable control model.
Background technique
Light-controller is widely used in street lamp, advertising lamp box or other workloads, the light-operated electricity in existing light-controller
Road by MCU controller, illuminance detection unit and relay unit, can respectively on daytime and at night to above-mentioned workload into
Row control.As at night when, street lamp need to open it is bright, at this time the MCU controller in light-operated circuit according to illuminance detection unit examine
The illuminance value measured is judged as at night, so that controlling relay unit opens bright street lamp, and to daytime, street lamp needs to extinguish,
The MCU controller in light-operated circuit is judged as daytime according to the illuminance value that illuminance detection unit detects at this time, to control
Relay unit processed extinguishes street lamp, can reach good energy-saving effect in this way.
But according to different requirements, can be correspondingly different to the control of workload on daytime and at night, for example, handle
When light-controller is applied on production line, worker on daytime working when need production line to operate, and at night worker's rest when need
Production line stops, and the light-operated circuit in such light-controller is on daytime and the control model to workload and the control to street lamp at night
Molding formula is on the contrary, the existing light-controller for street lamp cannot be used for production line, therefore existing light-controller has limitation.
Utility model content
The technical problems to be solved in the utility model is that a kind of circuit structure of light-controller is provided for software engineer, so as to
Software engineer is to the MCU controller programming in circuit structure so that the circuit structure can carry out switching control according to different needs
Mode, so that light-controller be enabled not have limitation.
In order to solve the above-mentioned technical problem, the utility model provides a kind of light-operated circuit of changeable control model, including
Voltage providing unit, MCU controller, relay unit and illuminance detection unit, the MCU controller are separately connected relay
Unit and illuminance detection unit, voltage providing unit are powered to MCU controller, further include control mode switch unit, packet
Include resistance R9 and 0R wire jumper, the front end the resistance R9 connects voltage providing unit, and rear end is grounded through 0R wire jumper, the resistance R9 and
The second pin AD1 of the contact connection MCU controller of 0R wire jumper.
Preferably, the voltage providing unit includes rectifier bridge and voltage regulation unit, and the voltage regulation unit includes resistance R3, electricity
Hinder one end of R4, resistance R5, zener diode ZD3 and triode Q2, resistance R3, one end of resistance R4 and zener diode ZD3
Cathode connection rectifier bridge direct current output anode, the collection of the other end connecting triode Q2 of the other end and resistance R4 of resistance R3
Electrode, one end of the anode connection resistance R5 of zener diode ZD3, the base stage of the other end connecting triode Q2 of resistance R5, three
The emitter of pole pipe Q2 connects rectifier bridge direct current output cathode.
Preferably, the voltage providing unit further includes pressure unit and filter unit, the pressure unit, rectifier bridge,
Voltage regulation unit and filter unit are sequentially connected.
Preferably, the voltage providing unit includes lightning strike protector.
Preferably, the relay unit includes relay RY1, pressure release diode D1 and triode Q1, the relay
RY1 includes contact switch K1 and electromagnetic coil J1, the pressure release diode D1 parallel connection electromagnetic coil J1, the triode Q1 base stage
MCU controller is connected, collector connects electromagnetic coil J1, emitter ground connection.
Circuit structure provided by the utility model has the advantages that in software engineer in circuit structure
After MCU controller programming, the control model of light-operated circuit can be controlled by open or closed 0R wire jumper: when 0R wire jumper disconnects
When, voltage providing unit makes the AD pin of MCU controller be in high level, if at this time to the AD pin powered of MCU controller
MCU controller is judged as daytime according to the illuminance value that illuminance detection unit detects, then MCU controller is to relay unit
High level is exported, so that relay unit control workload is not worked, if MCU controller is detected according to illuminance detection unit
Illuminance value be judged as that at night, then MCU controller exports low level to relay unit, keep relay unit control work negative
Carry work；When 0R wire jumper is connected, the AD pin ground connection of MCU controller, then voltage providing unit is not drawn to the AD of MCU controller
Foot power supply, makes the AD pin of MCU controller be in low level, if MCU controller is detected according to illuminance detection unit at this time
Illuminance value be judged as daytime, then to relay unit export low level, make relay unit control workload work, if
MCU controller is judged as at night according to the illuminance value that illuminance detection unit detects, then exports high electricity to relay unit
It is flat, so that relay unit control workload is not worked.Exist in this way, the light-operated circuit of the utility model both can control workload
It works by day, work at night, and can control that workload works at night, daytime does not work, i.e., light-operated circuit can be according to not
Same demand carrys out switching control mode, and the light-controller using the light-operated circuit of the utility model does not have limitation.
Detailed description of the invention
Fig. 1 is the circuit diagram of light-operated circuit.
Description of symbols: 1- lightning strike protector；2- pressure unit；3- rectifier bridge；4- voltage regulation unit；5- filter unit；
6-MCU controller；7- relay unit；8- illuminance detection unit；9- control mode switch unit.
Specific embodiment
Light-operated circuit is as shown in Figure 1, include lightning strike protector 1, pressure unit 2, rectifier bridge 3, voltage regulation unit 4, filtering list
Member 5, MCU controller 6, relay unit 7, illuminance detection unit 8 and control mode switch unit 9.
The two-way ac input end of light-operated circuit is separately connected firewire Li and zero curve N for alternating current, and lightning strike protector 1 connects
Between two-way ac input end, play the role of protecting circuit.
Pressure unit 2 includes capacitor C1, resistance R1, resistance R21 and resistance R22, and the one end capacitor C1 connects firewire Li, another
The front end of end connection resistance R1, shunt capacitance C1 after both resistance R21 and resistance R22 series connection.
The rear end of ac input end one end connection resistance R1 of rectifier bridge 3, the other end connect zero curve N；3 direct current of rectifier bridge is defeated
Anode connection voltage regulation unit 4 out, direct current output cathode ground connection.Then alternating current output after the decompression of pressure unit 2 is whole to rectifier bridge 3
Bridge 3 is flowed the commercial power rectification after decompression into the direct current with harmonic wave.
Voltage regulation unit 4 connects between the direct current output anode and direct current output cathode of rectifier bridge 3, including resistance R3, resistance
R4, resistance R5, triode Q2 and zener diode ZD3, after both resistance R3 and resistance R4 are in parallel, common front-end connection is whole
The direct current output anode of bridge 3, the collector of public rear end connecting triode Q2 are flowed, zener diode ZD3 cathode connects rectifier bridge 3
Output cathode, the positive base stage through resistance R5 connecting triode Q2, the emitter ground connection of triode Q2.Voltage regulation unit 4 can be right
The direct current that rectifier bridge 3 exports carries out pressure stabilizing, makes the voltage value constant of direct current.Because voltage regulation unit 4 is capacitance-resistance voltage reduction circuit,
So the DC current flow that rectifier bridge 3 exports can increase when the voltage for inputting voltage regulation unit 4 is high voltage, flow through at this time steady
It presses the electric current Ib of the base stage of diode ZD3, resistance R5, triode Q2 to increase, flows through the collector current of R3, R4, triode Q2
Ic also follows raising, because base stage-emitter voltage drop of ZD3, triode Q2 are certain, it is possible to reach output pressure stabilizing
Purpose.Transistor collector electric current Ic=β Ib (β is constant), so raised major part electric current can pass through resistance R3, resistance
R4, triode Q2 collector-emitter to bridge heap cathode (the Current amplifier characteristic of triode: Ic to Ib have control make
With will cause the variation of very big collector current Ic, make collector current as long as there is small base current b variation
Variable quantity is far longer than the variable quantity of base current).If therefore input 4 voltage of voltage regulation unit is high voltage, as long as R5 parameter is set
Meter rationally, then flows through voltage-stabiliser tube ZD3 variation with regard to very little, so that the power consumption of voltage-stabiliser tube diode ZD3, calorific value work with circuit
The same very little when low-voltage.
Filter unit 5 includes electrolytic capacitor C2, resistance R6 and zener diode ZD2, electrolytic capacitor C2 cathode ground connection, anode
Connect the front end of resistance R6, the cathode of the rear end connection zener diode ZD2 of resistance R6, the plus earth of zener diode ZD2.
Electrolytic capacitor C2 connects the direct current output anode of rectifier bridge 3, the contact of resistance R6 and zener diode ZD2 with the contact of resistance R6
The first pin VDD of MCU controller 6 is connected, then the direct current with harmonic wave that rectifier bridge 3 exports is through electrolytic capacitor C2 and resistance R6
After filtering out harmonic wave, then after zener diode ZD2 pressure stabilizing export to MCU controller 6 the first pin VDD, thus give MCU control
Device 6 provides operating voltage.
MCU controller 6 have eight pins, the contact of the first pin VDD connection resistance R6 and zener diode ZD2,
Second pin AD1 connection relay contact on-off mode checking unit 7, third pin AD0, the 6th pin PA3, the 7th pin
PA4 is hanging, and the 4th pin PA7 successively connects relay unit 8, the 5th pin PA1 connection illumination with triode Q1 through resistance R8
Detection unit 9, the 8th pin GND ground connection are spent, capacitor C4 connects between the first pin VDD and the 8th pin GND.
Relay unit 7 includes relay RY1 and pressure release diode D1, triode Q1 and resistance R7, resistance R8, relay
RY1 includes electromagnetic coil J1 and contact switch K1, and pressure release diode D1 parallel connection electromagnetic coil J1, pressure release diode D1 is in electromagnetic wire
It is formed into a loop when enclosing J1 power-off with electromagnetic coil J1, so that electromagnetic coil J1 be protected not to be damaged.The 4th of MCU controller 6
The contact of the base stage of base stage of the pin PA7 through resistance R8 connecting triode Q1, resistance R8 and triode Q1 is grounded through resistance R7, and three
The other end connection of pole pipe Q1 emitter ground connection, one end of the electromagnetic coil of collector connection relay RY1, electromagnetic coil J1 is whole
Flow the direct current output anode of bridge 3, contact switch K1 connection firewire, for controlling the work of workload (not shown).
Illuminance detection unit 8 includes resistance R10, capacitor C5 and phototriode PT1, and the front end resistance R10 connects resistance
The contact of R6 and zener diode ZD2, rear end connect the collector of phototriode PT1, and the emitter of phototriode PT1 connects
Ground, the both ends of capacitor C5 are separately connected the collector and emitter of phototriode PT1.5th pin PA1 of MCU controller connects
The contact of connecting resistance R10 and phototriode PT1, then MCU controller acquires illuminance detection unit 9 by the 5th pin PA1
The illuminance value detected.
Control mode switch unit 9 include resistance R9,0R wire jumper and electrolytic capacitor C6, the front end resistance R9 connect resistance R6 and
The contact of zener diode ZD2, rear end are grounded through 0R wire jumper, and second pin AD1 connection the resistance R9 and 0R of MCU controller 6 are jumped
The contact of line, electrolytic capacitor C6 anode connect the contact of resistance R6 and zener diode ZD2, cathode ground connection.Can by disconnect or
0R wire jumper is connected to control the control model of light-operated circuit, to control the contact switch K1 of relay RY1, contact switch K1 can
Using normally opened and two kinds normally closed:
If relay RY1 uses normally-closed contact relay, when 0R wire jumper disconnects, the direct current of the output of filter unit 5
It is input to the second pin AD1 of MCU controller 6 through resistance R9, the second pin AD1 of MCU controller 6 is made to be in high level, this
When light-operated circuit control model it is as follows:
If --- it is at this time daytime, the illuminance value that illuminance detection unit 9 detects is set higher than MCU controller 6
Threshold value, then in MCU controller 6 after the 5th pin PA1 collects the illuminance value, the internal processes of MCU controller 6 are run
And start timing, after program is run five seconds, MCU controller 6 was judged at this time for daytime.Due to the second of MCU controller 6
Pin AD1 is in high level, its 4th pin PA7 when judging daytime of MCU controller 6 exports high level signal, height electricity
Ordinary mail number control triode Q1 conducting, then the electromagnetic coil J1 of relay RY1 is obtained electric, electromagnetic coil J1 obtain it is electric after control normally closed touching
Point switch K1 disconnection is not turned on, and is not worked to control high power load；
If --- at this time at night, the illuminance value that illuminance detection unit 9 detects is set lower than MCU controller 6
Threshold value, then in MCU controller 6 after the 5th pin PA1 collects the illuminance value, the internal processes of MCU controller 6 are run
And start timing, after program is run five seconds, MCU controller 6 is judged at this time at night.Due to the second of MCU controller 6
Pin AD1 is in high level, its 4th pin PA7 when judging evening of MCU controller 6 exports low level signal, the low electricity
Ordinary mail number control triode Q1 is not turned on, then the electromagnetic coil J1 of relay RY1 must not be electric, and electromagnetic coil J1 must not be electric then normally closed
Contact switch K1 remains closed on state, to control high power load work.
In 0R wire jumper closure, the second pin AD1 ground connection of resistance R9 and MCU controller 6, then no current input MCU control
The second pin AD1 of device 6 processed is grounded, and so that the second pin AD1 of MCU controller 6 is in low level, the control of light-operated circuit at this time
Mode is as follows:
If --- it is at this time daytime, the illuminance value that illuminance detection unit 9 detects is set higher than MCU controller 6
Threshold value, then in MCU controller 6 after the 5th pin PA1 collects the illuminance value, the internal processes of MCU controller 6 are run
And start timing, after program is run five seconds, MCU controller 6 was judged at this time for daytime.Due to the second of MCU controller 6
Pin AD1 is in low level, its 4th pin PA7 when judging daytime of MCU controller 6 exports low level signal, the low electricity
Ordinary mail number control triode Q1 is not turned on, then the electromagnetic coil J1 of relay RY1 must not be electric, and electromagnetic coil J1 must not be electric then normally closed
Contact switch K1 keeps normally closed not on-state, to control high power load work；
If --- at this time at night, the illuminance value that illuminance detection unit 9 detects is set lower than MCU controller 6
Threshold value, then in MCU controller 6 after the 5th pin PA1 collects the illuminance value, the internal processes of MCU controller 6 are run
And start timing, after program is run five seconds, MCU controller 6 is judged at this time at night.Due to the second of MCU controller 6
Pin AD1 is in low level, its 4th pin PA7 when judging evening of MCU controller 6 exports high level signal, height electricity
Ordinary mail number control triode Q1 conducting, then the electromagnetic coil J1 of relay RY1 is obtained electric, electromagnetic coil J1 obtain it is electric after control normally closed touching
Point switch K1 disconnection is not turned on, and is not worked to control high power load.
In addition, when 0R wire jumper disconnects, filter unit 5 exports straight if relay RY1 uses normally opened contact relay
Galvanic electricity is input to the second pin AD1 of MCU controller 6 through resistance R9, and the second pin AD1 of MCU controller 6 is made to be in high electricity
Flat, the control model of light-operated circuit is as follows at this time:
If --- it is at this time daytime, the illuminance value that illuminance detection unit 9 detects is set higher than MCU controller 6
Threshold value, then in MCU controller 6 after the 5th pin PA1 collects the illuminance value, the internal processes of MCU controller 6 are run
And start timing, after program is run five seconds, MCU controller 6 was judged at this time for daytime.Due to the second of MCU controller 6
Pin AD1 is in high level, its 4th pin PA7 when judging daytime of MCU controller 6 exports high level signal, height electricity
Ordinary mail number control triode Q1 conducting, then the electromagnetic coil J1 of relay RY1 is obtained electric, electromagnetic coil J1 obtain it is electric after control normally opened touching
Point switch K1 closure conducting, to control high power load work；
If --- at this time at night, the illuminance value that illuminance detection unit 9 detects is set lower than MCU controller 6
Threshold value, then in MCU controller 6 after the 5th pin PA1 collects the illuminance value, the internal processes of MCU controller 6 are run
And start timing, after program is run five seconds, MCU controller 6 is judged at this time at night.Due to the second of MCU controller 6
Pin AD1 is in high level, its 4th pin PA7 when judging evening of MCU controller 6 exports low level signal, the low electricity
Ordinary mail number control triode Q1 is not turned on, then the electromagnetic coil J1 of relay RY1 must not be electric, and electromagnetic coil J1 must not be electric then normally opened
Contact switch K1 remains open not on-state, does not work to control high power load.
In 0R wire jumper closure, the second pin AD1 ground connection of resistance R9 and MCU controller 6, then no current input MCU control
The second pin AD1 of device 6 processed is grounded, and so that the second pin AD1 of MCU controller 6 is in low level, the control of light-operated circuit at this time
Mode is as follows:
If --- it is at this time daytime, the illuminance value that illuminance detection unit 9 detects is set higher than MCU controller 6
Threshold value, then in MCU controller 6 after the 5th pin PA1 collects the illuminance value, the internal processes of MCU controller 6 are run
And start timing, after program is run five seconds, MCU controller 6 was judged at this time for daytime.Due to the second of MCU controller 6
Pin AD1 is in low level, its 4th pin PA7 when judging daytime of MCU controller 6 exports low level signal, the low electricity
Ordinary mail number control triode Q1 is not turned on, then the electromagnetic coil J1 of relay RY1 must not be electric, and electromagnetic coil J1 must not be electric then normally opened
Contact switch K1 maintains a normally open not on-state, does not work to control high power load；
If --- at this time at night, the illuminance value that illuminance detection unit 9 detects is set lower than MCU controller 6
Threshold value, then in MCU controller 6 after the 5th pin PA1 collects the illuminance value, the internal processes of MCU controller 6 are run
And start timing, after program is run five seconds, MCU controller 6 is judged at this time at night.Due to the second of MCU controller 6
Pin AD1 is in low level, its 4th pin PA7 when judging evening of MCU controller 6 exports high level signal, height electricity
Ordinary mail number control triode Q1 conducting, then the electromagnetic coil J1 of relay RY1 is obtained electric, electromagnetic coil J1 obtain it is electric after control normally opened touching
Point switch K1 actuation is not turned on, to control high power load work.
Claims (5)
1. a kind of light-operated circuit of changeable control model, including voltage providing unit, MCU controller (6), relay unit
(7) and illuminance detection unit (8), the MCU controller (6) are separately connected relay unit (7) and illuminance detection unit
(8), voltage providing unit is powered to MCU controller (6), it is characterised in that: and it further include control mode switch unit (9), packet
Include resistance R9 and 0R wire jumper, the front end the resistance R9 connects voltage providing unit, and rear end is grounded through 0R wire jumper, the resistance R9 and
The second pin AD1 of contact connection MCU controller (6) of 0R wire jumper.
2. the light-operated circuit of changeable control model according to claim 1, it is characterised in that: the voltage providing unit
Including rectifier bridge (3) and voltage regulation unit (4), the voltage regulation unit (4) includes resistance R3, resistance R4, resistance R5, zener diode
One end of ZD3 and triode Q2, resistance R3, one end of resistance R4 connect the straight of rectifier bridge (3) with the cathode of zener diode ZD3
Stream output cathode, the collector of the other end connecting triode Q2 of the other end and resistance R4 of resistance R3, zener diode ZD3's
The emitter connection of one end of anode connection resistance R5, the base stage of the other end connecting triode Q2 of resistance R5, triode Q2 is whole
Flow bridge (3) direct current output cathode.
3. the light-operated circuit of changeable control model according to claim 2, it is characterised in that: the voltage providing unit
It further include pressure unit (2) and filter unit (5), the pressure unit (2), rectifier bridge (3), voltage regulation unit (4) and filtering are single
First (5) are sequentially connected.
4. the light-operated circuit of changeable control model according to claim 2, it is characterised in that: the voltage providing unit
Including lightning strike protector (1).
5. the light-operated circuit of changeable control model according to claim 1, it is characterised in that: the relay unit
It (7) include relay RY1, pressure release diode D1 and triode Q1, the relay RY1 include contact switch K1 and electromagnetic coil
J1, the pressure release diode D1 parallel connection electromagnetic coil J1, the triode Q1 base stage connect MCU controller (6), collector connection
Electromagnetic coil J1, emitter ground connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821171047.4U CN208462120U (en) | 2018-07-23 | 2018-07-23 | A kind of light-operated circuit of changeable control model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821171047.4U CN208462120U (en) | 2018-07-23 | 2018-07-23 | A kind of light-operated circuit of changeable control model |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208462120U true CN208462120U (en) | 2019-02-01 |
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ID=65179947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821171047.4U Active CN208462120U (en) | 2018-07-23 | 2018-07-23 | A kind of light-operated circuit of changeable control model |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208462120U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114625192A (en) * | 2022-05-17 | 2022-06-14 | 深圳市海泰微电子科技有限公司 | Air fryer control circuit based on single chip microcomputer |
-
2018
- 2018-07-23 CN CN201821171047.4U patent/CN208462120U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114625192A (en) * | 2022-05-17 | 2022-06-14 | 深圳市海泰微电子科技有限公司 | Air fryer control circuit based on single chip microcomputer |
| CN114625192B (en) * | 2022-05-17 | 2022-07-29 | 深圳市海泰微电子科技有限公司 | Air fryer control circuit based on single chip microcomputer |
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