CN208210374U - A kind of infrared induction control circuit powered using main winding tap in non-isolated circuit - Google Patents
A kind of infrared induction control circuit powered using main winding tap in non-isolated circuit Download PDFInfo
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- CN208210374U CN208210374U CN201820594622.5U CN201820594622U CN208210374U CN 208210374 U CN208210374 U CN 208210374U CN 201820594622 U CN201820594622 U CN 201820594622U CN 208210374 U CN208210374 U CN 208210374U
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Abstract
The utility model discloses a kind of infrared induction control circuits powered using main winding tap in non-isolated circuit, including non-isolated main circuit, infrared induction circuit, switching tube Q1 and LED load, non-isolated main circuit output end is connected with main winding T1, main winding T1 tap goes out the input terminal of the end VL1 connection infrared induction circuit, switching tube Q1 is serially connected in LED load cathode and the one end main winding T1, the grid of switching tube Q1 is connected with the output end of infrared induction circuit, the one end main winding T1, and the anode of LED load is connected with the busbar voltage of non-isolated main circuit.The input terminal and output end of infrared induction circuit are only connected with the output par, c of non-isolated main circuit, which can be suitably used for the non-isolated main circuit of various parameters, and compatibility is high；And by carrying out tap for tap terminals to main winding be that infrared induction circuit is powered, such power-supply service can simplify circuit, reduce loss, optimization cost and space.
Description
Technical field
The utility model relates to a kind of infrared induction control circuits powered using main winding tap in non-isolated circuit.
Background technique
The infrared control circuit of existing LED light, main circuit use constant pressure isolation circuit substantially, while infrared induction
Circuit is serially connected in output circuit, controls conducting and shutdown between LED cathode and secondary ground.Because of constant voltage output, can protect
Card is that the MCU in infrared induction circuit supplies stable voltage.And the infrared induction circuit of the type is in constant pressure isolation applications
It is relatively conventional and be easier to be compatible with, but as low cost and the small requirement isolation circuit in space provide no advantage against already.It is necessary to will
Non-isolated main circuit is combined with infrared induction circuit and is improved.
Utility model content
The utility model provides a kind of infrared induction control circuit powered using main winding tap in non-isolated circuit,
Which overcome the existing deficiencies of background technique.
The technical solution adopted by the utility model to solve the technical problem is that:
The infrared induction control circuit powered using main winding tap in non-isolated circuit, it is characterised in that: it includes non-
Isolation main circuit, infrared induction circuit, switching tube Q1 and LED load, non-isolated main circuit output end are connected with main winding T1, main
Winding T1 tap goes out the input terminal of the end VL1 connection infrared induction circuit, and switching tube Q1 is serially connected in LED load cathode and main winding T1
The grid of one end, switching tube Q1 is connected with the output end of infrared induction circuit, the one end main winding T1, the anode of LED load with
The busbar voltage of non-isolated main circuit is connected.
Among one preferred embodiment: the source electrode of switching tube Q1 is connected with the one end main winding T1, the drain electrode of switching tube Q1 with
The cathode of LED load is connected.
Among one preferred embodiment: non-isolated main circuit further includes diode D1, the anode and main winding T1 of diode D1
The other end be connected, the cathode of diode D1 is connected with LED load anode.
Among one preferred embodiment: being parallel with electrolytic capacitor EC5 and resistance R13 between the anode and cathode of LED load.
Among one preferred embodiment: non-isolated main circuit further includes electrolytic capacitor EC4 and resistance R7, electrolytic capacitor EC4 and
Resistance R7 is connected in parallel between the anode of LED load and the one end main winding T1.
Among one preferred embodiment: connecting resistance R12, switching tube Q1 between the source electrode and the one end main winding T1 of switching tube Q1
Grid and infrared induction circuit output end between connect resistance R11.
Among one preferred embodiment: infrared induction circuit include rectification module, Voltage stabilizing module, infrared sensor module and
MCU single-chip microcontroller, rectification module input terminal connect main winding T1 tap terminals VL1, and rectification module output end connects Voltage stabilizing module input
End, Voltage stabilizing module output end connect infrared sensor module input terminal, and it is defeated that infrared sensor module output end connects MCU single-chip microcontroller
Enter end, the grid of MCU single-chip microcomputer output connection switch pipe Q1.
Among one preferred embodiment: infrared induction circuit further includes filter module, filter module input terminal connection rectification mould
Block output end, filter module output end connect Voltage stabilizing module input terminal.
Among one preferred embodiment: infrared induction circuit further includes signal amplification module, and signal amplification module input terminal connects
Infrared sensor module output end is connect, signal amplification module output end connects MCU single-chip microcomputer input.
The technical program compared with the background art, it has the following advantages:
1. since main winding T1 is located at the output end of non-isolated main circuit, so that the input terminal of infrared induction circuit and output
End is only connected with the output par, c of non-isolated main circuit, so that the circuit can be suitably used for the non-isolated main circuit of various parameters,
Suitability and compatibility are high；And by main winding carry out tap by tap terminals be infrared induction circuit power, such power supply
Design can simplify circuit, reduce loss, optimize cost and space.
It is parallel with electrolytic capacitor EC5 and resistance R13 between the anode and cathode of 2.LED load, switching tube Q1 is can avoid and leads
The raw spike of clearance stopping pregnancy.
3. electrolytic capacitor EC4 and resistance R7 are connected in parallel between the anode of LED load and the one end main winding T1, for pair
The voltage that main winding T1 is generated when powering is filtered.
4. infrared induction circuit further includes signal amplification module, the distance of reaction of infrared sensor can be increased.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawings and examples.
Fig. 1 depicts the overall structure diagram of the infrared induction control circuit of a preferred embodiment.
Fig. 2 depicts the overall structure diagram of the infrared induction control circuit of another preferred embodiment.
Specific embodiment
Fig. 1 is please referred to, it is preferably real using one of the infrared induction control circuit of main winding tap power supply in non-isolated circuit
Example is applied, the infrared induction control circuit powered using main winding tap in non-isolated circuit, it includes non-isolated main electricity
Road 1, infrared induction circuit 2, switching tube Q1 and LED load.
Non-isolated 1 output end of main circuit is connected with main winding T1, and main winding T1 tap goes out the end VL1 connection infrared induction circuit
Input terminal.
In the present embodiment, non-isolated main circuit 1 include protective tube F1, capacitor C1, rectifier bridge DB1, rectification filtering module R1,
L1, EC1, EC2, diode D1, electrolytic capacitor EC4 and resistance R7, capacitor C3, resistance R4, R5, main control chip U1, resistance R6,
R2, R3, capacitor C2.
The end power supply L is connected with the one end protective tube F1, the protective tube F1 other end and capacitor C1 and rectifier bridge DB1 input terminal phase
Connection, capacitor C1 and rectifier bridge DB1 cathode output end are connected with power supply N-terminal, rectifier bridge DB1 cathode output end and resistance
R2, R1, electrolytic capacitor EC1, inductance L1 are connected, and resistance R1, the inductance L1 other end are negative with electrolytic capacitor EC2, diode D1
Extremely, electrolytic capacitor EC4, resistance R7 are connected with LED load anode, and electrolytic capacitor EC1 is connected and connects with the EC2 other end
Ground, the one end main winding T1 are connected with electrolytic capacitor EC4, the resistance R7 other end, the main winding T1 other end and diode D1 anode,
The end DRAIN of main control chip U1 is connected, and the end CS of main control chip U1 is connected with resistance R4, R5, another termination of resistance R4, R5
The end ROVP on ground, main control chip U1 is connected with resistance R6, resistance R6 other end ground connection, the end VCCD of main control chip U1 and resistance
R3 is connected with capacitor C2, and capacitor C2 other end ground connection, the resistance R3 other end is connect with resistance R2.
As needed, which also can be replaced other non-isolated circuits.
Switching tube Q1 is serially connected in LED load cathode and the one end main winding T1, the grid and infrared induction circuit of switching tube Q1
Output end, the one end main winding T1 be connected, the anode of LED load is connected with the busbar voltage of non-isolated main circuit.
In the present embodiment, the source electrode of switching tube Q1 is connected with the one end main winding T1, the drain electrode and LED load of switching tube Q1
Cathode be connected.
In the present embodiment, resistance R12, the grid of switching tube Q1 are connected between the source electrode and the one end main winding T1 of switching tube Q1
Resistance R11 is connected between 2 output end of infrared induction circuit.
In the present embodiment, electrolytic capacitor EC5 and resistance R13 are parallel between the anode and cathode of LED load.
In the present embodiment, infrared induction circuit 2 includes rectification module, Voltage stabilizing module, infrared sensor module and MCU monolithic
Machine, rectification module input terminal connect main winding T1 tap terminals VL1, and rectification module output end connects Voltage stabilizing module input terminal, pressure stabilizing
Module output end connects infrared sensor module input terminal, and infrared sensor module output end connects MCU single-chip microcomputer input,
The grid of MCU single-chip microcomputer output connection switch pipe Q1.
In the present embodiment, infrared induction circuit 2 further includes filter module, and filter module input terminal connects rectification module output
End, filter module output end connect Voltage stabilizing module input terminal.
As shown in Figure 1, rectification module uses diode D2, Voltage stabilizing module uses chip U2, and infrared sensor module includes
Infrared sensor S1, MCU single-chip microcontroller uses chip U3.The filter module uses electrolytic capacitor EC3.The infrared induction circuit also wraps
Include resistance R8, R9, R10, capacitor C4, C5.
The tap terminals VL1 of main winding T1 is connected with the anode of diode D2, and the cathode of diode D2 is connected with resistance R8
It connects, the resistance R8 other end is connected with electrolytic capacitor EC3 and chip U2 input terminal, chip U2 output end and capacitor C4, resistance R9
Be connected, the capacitor C4 other end is connected with the ground terminal of the electrolytic capacitor EC3 other end, chip U2, the resistance R9 other end with it is red
Outer sensor S1 electrode input end is connected, and infrared sensor S1 negative input is connected with the 6th pin of chip U3, infrared
The first output end of sensor S1 is connected with the 7th pin of R10 and chip U3, infrared sensor S1 second output terminal and capacitor C4
The 8th pin of the other end and chip U3 are connected, and the resistance R10 other end is connected with the 1st pin of capacitor C5 and chip U3,
The capacitor C5 other end is connected with the 8th pin of chip U3, and the 2nd pin of chip U3 is connected with resistance R11.
As shown in Fig. 2, for using in non-isolated circuit the infrared induction control circuit of main winding tap power supply it is another compared with
Good embodiment, the present embodiment and the difference of a upper embodiment are that infrared induction circuit 2 further includes signal amplification module 3, signal
3 input terminal of amplification module connects infrared sensor module output end, and 3 output end of signal amplification module connects the input of MCU single-chip microcontroller
End.
The signal amplification module 3 includes capacitor C6, resistance R14, R16, R15, R17, R18, capacitor C7, triode Q2, Q3
(Darlington transistor), capacitor C6 are connected with the first output end of infrared sensor, the capacitor C6 other end and resistance R14, R15, three poles
The base stage of pipe Q2 is connected, and the resistance R14 other end is connected with the base stage of resistance R16, the emitter of triode Q2, triode Q3
Connect, resistance R16 is connected with the 1st pin of the emitter of triode Q3, capacitor C5, chip U3, the collector of triode Q3 with
Collector, resistance R17, R18, R15 of triode Q2 is connected, resistance R17 other end ground connection, the resistance R18 other end and capacitor
C7, chip U3 the 7th pin be connected, the capacitor C7 other end ground connection.
The infrared induction control method powered using main winding tap in non-isolated circuit, are as follows:
When infrared induction circuit output end is high level, first state are as follows: the source electrode and drain electrode of switching tube Q1 is conducted, electricity
LED load positive and negative anodes, main winding T1 and non-isolated main circuit negative input are passed through from non-isolated main circuit electrode input end in source
Forming circuit, so that LED load is connected, and main winding T1 storage；The specific circuit are as follows: power supply is defeated from non-isolated main circuit anode
Enter end by protective tube F1, rectifier bridge DB1, rectification filtering module R1, L1, EC1, EC2, LED load anode, LED load cathode,
Switching tube Q1, main winding T1, chip U1, R4, R5 return to power cathode end.Second state main winding T1 passes through diode D1, warp
Cross LED load positive and negative anodes forming circuit, main winding T1 electric discharge；Main winding T1 is in continuous charging and discharging state；Meanwhile main winding T1
Tap terminals VL1 to provide supply voltage after the rectified filtering of continuous square-wave voltage for infrared induction circuit；
When 2 output end of infrared induction circuit is low level, the source electrode and drain electrode of switching tube Q1 is disconnected, and LED load is disconnected
It is in standby, main winding T1 discontinuity charge and discharge；Meanwhile the tap terminals VL1 of main winding T1 is the rectified filter of pulse voltage
Supply voltage is provided after wave for infrared induction circuit；
Since main winding T1 is located at the output end of non-isolated main circuit 1, so that the input terminal of infrared induction circuit 2 and output
End is only connected with the output par, c of non-isolated main circuit 1, so that the circuit can be suitably used for the non-isolated main circuit of various parameters,
Suitability and compatibility are high；And by main winding carry out tap by tap terminals be infrared induction circuit power, such power supply
Design can simplify circuit, reduce loss, optimize cost and space.
The above, only the utility model preferred embodiment, therefore, it cannot be limited according to, and the utility model is implemented
It is practical new to should still belong to this for range, i.e., equivalent changes and modifications made according to the scope of the patent of the utility model and the content of the manual
In the range of type covers.
Claims (9)
1. a kind of infrared induction control circuit powered using main winding tap in non-isolated circuit, it is characterised in that: it includes
Non-isolated main circuit, infrared induction circuit, switching tube Q1 and LED load, non-isolated main circuit output end are connected with main winding T1,
Main winding T1 tap goes out the input terminal of the end VL1 connection infrared induction circuit, and switching tube Q1 is serially connected in LED load cathode and main winding
The grid of the one end T1, switching tube Q1 is connected with the output end of infrared induction circuit, the one end main winding T1, the anode of LED load
It is connected with the busbar voltage of non-isolated main circuit.
2. a kind of infrared induction powered using main winding tap in non-isolated circuit according to claim 1 controls electricity
Road, it is characterised in that: the source electrode of switching tube Q1 is connected with the one end main winding T1, and the drain electrode of switching tube Q1 and LED load are negative
Pole is connected.
3. a kind of infrared induction powered using main winding tap in non-isolated circuit according to claim 1 controls electricity
Road, it is characterised in that: non-isolated main circuit further includes diode D1, and the anode of diode D1 is connected with the other end of main winding T1
It connects, the cathode of diode D1 is connected with LED load anode.
4. a kind of infrared induction powered using main winding tap in non-isolated circuit according to claim 1 controls electricity
Road, it is characterised in that: be parallel with electrolytic capacitor EC5 and resistance R13 between the anode and cathode of LED load.
5. a kind of infrared induction powered using main winding tap in non-isolated circuit according to claim 1 controls electricity
Road, it is characterised in that: non-isolated main circuit further includes electrolytic capacitor EC4 and resistance R7, and electrolytic capacitor EC4 and resistance R7 parallel connection connect
It connects between the anode and the one end main winding T1 of LED load.
6. described according to claim 1 or 2 or 3 or 4 or 5 it is a kind of using in non-isolated circuit main winding tap power it is infrared
Inductive control circuit, it is characterised in that: resistance R12, switching tube Q1 are connected between the source electrode and the one end main winding T1 of switching tube Q1
Grid and infrared induction circuit output end between connect resistance R11.
7. described according to claim 1 or 2 or 3 or 4 or 5 it is a kind of using in non-isolated circuit main winding tap power it is infrared
Inductive control circuit, it is characterised in that: infrared induction circuit includes rectification module, Voltage stabilizing module, infrared sensor module and MCU
Single-chip microcontroller, rectification module input terminal connect main winding T1 tap terminals VL1, and rectification module output end connects Voltage stabilizing module input terminal,
Voltage stabilizing module output end connects infrared sensor module input terminal, and infrared sensor module output end connects the input of MCU single-chip microcontroller
End, the grid of MCU single-chip microcomputer output connection switch pipe Q1.
8. a kind of infrared induction powered using main winding tap in non-isolated circuit according to claim 7 controls electricity
Road, it is characterised in that: infrared induction circuit further includes filter module, and filter module input terminal connects rectification module output end, filter
Wave module output end connects Voltage stabilizing module input terminal.
9. a kind of infrared induction powered using main winding tap in non-isolated circuit according to claim 8 controls electricity
Road, it is characterised in that: infrared induction circuit further includes signal amplification module, and signal amplification module input terminal connects infrared sensor
Module output end, signal amplification module output end connect MCU single-chip microcomputer input.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820594622.5U CN208210374U (en) | 2018-04-24 | 2018-04-24 | A kind of infrared induction control circuit powered using main winding tap in non-isolated circuit |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820594622.5U CN208210374U (en) | 2018-04-24 | 2018-04-24 | A kind of infrared induction control circuit powered using main winding tap in non-isolated circuit |
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| CN208210374U true CN208210374U (en) | 2018-12-07 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108575028A (en) * | 2018-04-24 | 2018-09-25 | 厦门恩耐照明技术有限公司 | The infrared induction control circuit and control method powered using main winding tap in non-isolated circuit |
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2018
- 2018-04-24 CN CN201820594622.5U patent/CN208210374U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108575028A (en) * | 2018-04-24 | 2018-09-25 | 厦门恩耐照明技术有限公司 | The infrared induction control circuit and control method powered using main winding tap in non-isolated circuit |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20200422 Address after: Xinyang Industrial Park Haicang District of Xiamen City, Fujian province 361000 after Cheung Road No. 88 Patentee after: XIAMEN YANKON ENERGETIC LIGHTING Co.,Ltd. Address before: 361000, Xiamen District, Haicang District, Fujian Province Road, No. 88, science building, two floor, A District Patentee before: Xiamen Energetic Lighting Co.,Ltd. |
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| TR01 | Transfer of patent right |