CN209517577U - A kind of LED lamp light-controlled switching circuit and LED light - Google Patents
A kind of LED lamp light-controlled switching circuit and LED light Download PDFInfo
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- CN209517577U CN209517577U CN201822044585.3U CN201822044585U CN209517577U CN 209517577 U CN209517577 U CN 209517577U CN 201822044585 U CN201822044585 U CN 201822044585U CN 209517577 U CN209517577 U CN 209517577U
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- 239000004065 semiconductor Substances 0.000 claims abstract description 24
- 239000003990 capacitor Substances 0.000 claims abstract description 18
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- 230000000087 stabilizing effect Effects 0.000 claims description 2
- 241001465382 Physalis alkekengi Species 0.000 abstract description 7
- 230000009286 beneficial effect Effects 0.000 abstract description 3
- 101100112673 Rattus norvegicus Ccnd2 gene Proteins 0.000 description 4
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- 230000036772 blood pressure Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
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- 230000005622 photoelectricity Effects 0.000 description 1
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Abstract
The utility model provides a kind of LED lamp light-controlled switching circuit, including phototriode, capacitor, metal-oxide-semiconductor, the first operational amplifier, second operational amplifier, zener diode, second resistance, 3rd resistor, the 4th resistance, second operational amplifier negative input end is connect with the first operational amplifier output terminal, second operational amplifier positive input terminal is connected with the first operational amplifier positive input terminal, second operational amplifier output end is connected with metal-oxide-semiconductor grid, metal-oxide-semiconductor collector connects negative pole of output end, and metal-oxide-semiconductor emitter connects input cathode.The beneficial effects of the utility model are: the light-controlled switching circuit of 1. the utility model is DC operation, connects and driven between output and LED lamp panel input in LED, overcome the small problem of some high-voltage alternating light-controller operating voltage ranges；2. not influencing the PF value and EMC of whole lamp；3. operating temperature range is wide, small in size to be built into inside lamps and lanterns.
Description
Technical field
The utility model relates to LED lamp switch control application field more particularly to a kind of LED lamp light-controlled switching circuits
And LED light.
Background technique
It is automatically switched as door head lamp, this outdoor LED lamp of garden lamp be more and more with light sensation, at present market glazing
Controlled LED lamp tool is all to realize light-operated switch function by high-voltage alternating light-controller of connecting before the driving of lamps and lanterns, this
Light-controller connects alternating current work with lamps and lanterns driving together, and this light-controller is divided into thermal type and electronic type two major classes again.Thermal type
Principle be that temperature-sensitive elastic slice and photo resistance are cascaded, the resistance value of photo resistance changes as illuminance changes, from
And the heating current by temperature-sensitive elastic slice is changed come control switch；The principle of electronic type is after input high-voltage alternating electric rectification
Lowering and stabilizing blood pressure, then with single-chip microcontroller detection photodiode and control relay come control switch.
High-voltage alternating thermal type light-controller is influenced by the mild operating voltage of building ring, cannot be used in Width funtion (100~
277VAC) on the product inputted, it is built into impacted big inside the big lamps and lanterns of temperature rise.The PF of the light-controller of high-voltage alternating electronic type
Be worth it is low, especially Width funtion input light-operated switch, when input voltage is high, PF can be as low as 0.1 hereinafter, in this way can be whole lamp
PF is dragged down, and the PF value of the whole lamp of most regional requirements lamps and lanterns is greater than 0.9, and the decompression voltage regulator of light-controller will affect
The EMC of whole lamp.
Utility model content
The utility model provides a kind of LED lamp light-controlled switching circuit, including phototriode, capacitor, metal-oxide-semiconductor,
One operational amplifier, second operational amplifier, zener diode, second resistance, 3rd resistor, the 4th resistance, second fortune
Calculation amplifier negative input end connect composition one with first operational amplifier output terminal and follows circuit, and second operation is put
Big device positive input terminal is connected with the first operational amplifier positive input terminal, the second operational amplifier output end with it is described
Metal-oxide-semiconductor grid is connected, and the metal-oxide-semiconductor collector connects negative pole of output end, and the metal-oxide-semiconductor emitter connects input cathode；Institute
It states phototriode one end to be connected with the first operational amplifier negative input end, the phototriode other end connection input
Hold cathode；Described second resistance one end is separately connected the zener diode, first operational amplifier anode, described second
Operational amplifier anode, the second resistance other end are separately connected the 3rd resistor, the 4th resistance, first fortune
Calculate amplifier positive input terminal and the second operational amplifier positive input terminal；Described 3rd resistor one end is separately connected described second
Resistance, the 4th resistance, the first operational amplifier positive input terminal and the second operational amplifier positive input terminal, it is described
The 3rd resistor other end connects input cathode；Described 4th resistance one end is separately connected the second resistance, third electricity
Resistance, the first operational amplifier positive input terminal and the second operational amplifier positive input terminal, the 4th resistance other end
Connect first operational amplifier output terminal；Described capacitor one end is connected with the second operational amplifier negative input end, institute
State another termination negative pole of output end of capacitor.
The LED lamp light-controlled switching circuit further includes the 7th resistance as a further improvement of the utility model, and described
Seven resistance one end are connected with the second operational amplifier output end, the 7th resistance other end and the metal-oxide-semiconductor grid phase
Even.
The LED lamp light-controlled switching circuit further includes the 5th resistance, the light as a further improvement of the utility model,
Quick triode one end is connected with the 5th resistance and the first operational amplifier negative input end respectively.
The LED lamp light-controlled switching circuit further includes first resistor as a further improvement of the utility model, and described
One resistance one end connects input anode, and the first resistor other end is separately connected the zener diode, second electricity
Resistance, the 5th resistance, first operational amplifier anode and second operational amplifier anode；The second resistance one
End is separately connected the zener diode, the first resistor, the 5th resistance, first operational amplifier anode, institute
State second operational amplifier anode.
Described 5th resistance one end is positive with first operational amplifier respectively, the second operational amplifier is positive,
The zener diode is connected, and the 5th resistance other end is connected with the first operational amplifier negative input end.
The LED lamp light-controlled switching circuit further includes the 6th resistance and two poles as a further improvement of the utility model,
Pipe, described 6th resistance one end is separately connected first operational amplifier output terminal and the diode, the 6th resistance
The other end is separately connected the capacitor and the second operational amplifier negative input end；Diode one end connection the described 4th
Resistance, the diode other end are separately connected first operational amplifier output terminal and the 6th resistance.
The invention also discloses a kind of LED light, which is built-in with the described in any item LED lamps of claim
Light-controlled switching circuit.
The beneficial effects of the utility model are: the light-controlled switching circuit of 1. the utility model is DC operation, connects and driven in LED
Between dynamic output and LED lamp panel input, the small problem of some high-voltage alternating light-controller operating voltage ranges is overcome；2. practical
Novel light-operated does not influence the PF value and EMC of whole lamp；3. the light-controlled switching circuit operating temperature range of the utility model is wide, small in size
It can be built into inside lamps and lanterns.
Detailed description of the invention
Fig. 1 is the utility model LED lamp light-controlled switching circuit working principle diagram.
Specific embodiment
As shown in Figure 1, the utility model discloses a kind of LED lamp light-controlled switching circuit, including phototriode PH1,
Capacitor C1, metal-oxide-semiconductor Q1, the first operational amplifier AR1, second operational amplifier AR2, zener diode D1, second resistance R2,
Three resistance R3, the 4th resistance R4, the second operational amplifier AR2 negative input end and the first operational amplifier AR1 are exported
End connection composition one follows circuit, and the second operational amplifier AR2 positive input terminal and the first operational amplifier AR1 are just
Input terminal is connected, and the second operational amplifier AR2 output end is connected with the metal-oxide-semiconductor Q1 grid, the metal-oxide-semiconductor Q1 collector
Negative pole of output end OUTPUT- is connected, the metal-oxide-semiconductor Q1 emitter connects input cathode INPUT-；The phototriode PH1
One end is connected with the first operational amplifier AR1 negative input end, and the phototriode PH1 other end connects input cathode
INPUT-；The one end the second resistance R2 be separately connected the zener diode D1, the first operational amplifier AR1 anode,
The second operational amplifier AR2 anode, the second resistance R2 other end are separately connected the 3rd resistor R3, the described 4th
Resistance R4, the first operational amplifier AR1 positive input terminal and the second operational amplifier AR2 positive input terminal；The third
The one end resistance R3 is separately connected the second resistance R2, the 4th resistance R4, the first operational amplifier AR1 positive input terminal
With the second operational amplifier AR2 positive input terminal, the 3rd resistor R3 other end connects input cathode INPUT-；It is described
It is just defeated that 4th one end resistance R4 is separately connected the second resistance R2, the 3rd resistor R3, the first operational amplifier AR1
Enter end and the second operational amplifier AR2 positive input terminal, the 4th resistance R4 other end connects first operation amplifier
Device AR1 output end；The one end the capacitor C1 is connected with the second operational amplifier AR2 negative input end, and the capacitor C1 is another
Terminate negative pole of output end INPUT-.
The LED lamp light-controlled switching circuit further includes the 7th resistance R7, described 7th one end resistance R7 and second fortune
It calculates amplifier AR2 output end to be connected, the 7th resistance R7 other end is connected with the metal-oxide-semiconductor Q1 grid.
The LED lamp light-controlled switching circuit further includes the 5th resistance R5, the one end the phototriode PH1 respectively with it is described
5th resistance R5 is connected with the first operational amplifier AR1 negative input end.
The LED lamp light-controlled switching circuit further includes first resistor R1, and the connection input of the one end the first resistor R1 is rectified
Pole INPUT+, the first resistor R1 other end are separately connected the zener diode D1, the second resistance R2, the described 5th
Resistance R5, the first operational amplifier AR1 anode and second operational amplifier AR2 anode；The second resistance R2 mono-
End is separately connected the zener diode D1, the first resistor R1, the 5th resistance R5, first operational amplifier
AR1 anode, second operational amplifier AR2 anode.
The one end the 5th resistance R5 respectively with the first operational amplifier AR1 anode, the second operational amplifier
AR2 anode, the zener diode D1 are connected, and the 5th resistance R5 other end is born defeated with the first operational amplifier AR1
Enter end to be connected.
The LED lamp light-controlled switching circuit further includes the 6th resistance R6 and diode D2, described 6th one end resistance R6 point
The first operational amplifier AR1 output end and the diode D2 are not connected, and the 6th resistance R6 other end is separately connected
The capacitor C1 and the second operational amplifier AR2 negative input end；The one end the diode D2 connects the 4th resistance R4,
The diode D2 other end is separately connected the first operational amplifier AR1 output end and the 6th resistance R6.
The invention also discloses a kind of LED light, it is light-operated which is built-in with the described in any item LED lamps of claim
Switching circuit.
The LED lamp light-controlled switching circuit of the utility model, input terminal INPUT connect LED driving DC output, output end
OUTPUT connects LED lamp panel control lamp plate switch.
If zener diode D1 voltage of voltage regulation is Vd1, the first operational amplifier AR1 positive input terminal is IN1+, the first operation
Amplifier AR1 negative input end is IN1-, and the first operational amplifier AR1 output is OUT1, second operational amplifier AR2 positive input terminal
For IN2+, second operational amplifier AR2 negative input end is IN2-, and second operational amplifier AR2 output is OUT2.
Working principle is as follows:
1. power-up initializing, capacitor C1 does not charge also, second operational amplifier AR2 negative input end IN2- voltage Vin2- etc.
It is equal to Vd1* (R3*R4)/(R3+R4)/(R2+ (R3* in 0V, second operational amplifier AR2 positive input terminal IN2+ voltage Vin2+
R4)/(R3+R4)), so Vin2- is greater than Vin2+, so second operational amplifier AR2 output OUT2 is equal to Vd1, metal-oxide-semiconductor Q1
Conducting, so not external environment brightness how much, lamp is bright when just powering on, and lets the user know that energization is normal.
2. the resistance value of phototriode PH1 is inversely proportional with ambient brightness, when ambient brightness is higher than setting threshold values, i.e., the first fortune
When calculating amplifier AR1 negative input end IN1- voltage Vin1- less than the first operational amplifier AR1 positive input terminal IN1+ voltage Vin1+,
First operational amplifier AR1 exports OUT1 and is equal to Vd1, and at this moment the 4th resistance R4 is equivalent to vacantly, capacitor C1 charging (delay is used),
Capacitor C1 it is fully charged after Vin2- be equal to Vd1, and Vin2+ be equal to Vd1*R3/ (R2+R3), so Vin2- be greater than Vin2+, second
Operational amplifier AR2 exports OUT2 and is equal to 0V, and metal-oxide-semiconductor Q1 cut-off lamp goes out.
3. when ambient brightness is higher than setting threshold values, i.e. when Vin1- is greater than Vin1+, the first operational amplifier AR1 output end
OUT1 is equal to 0V, and the 4th resistance R4, which is equivalent to, is conducting to 0V, and capacitor C1 discharges (delay), and capacitor C1 is discharged rear Vin2- and is equal to
0V, but Vin2+ is equal to Vd1* (R3*R4)/(R3+R4)/(R2+ (R3*R4)/(R3+R4)), so Vin2- is less than Vin2+, the
Two operational amplifier AR2 export OUT2 and are equal to Vd1, and it is bright that lamp is connected in metal-oxide-semiconductor Q1.
4. by above-mentioned 2 and 3 it is found that Vin1=Vin2=Vd1*R3/ (R2+R3), Vin1=Vin2=when lamp goes out when bright lamp
Vd1* (R3*R4)/(R3+R4)/(R2+ (R3*R4)/(R3+R4)), i.e., decision threshold when decision threshold when lamp is bright is gone out than lamp
Greatly, it can be flashed in this way to avoid environment light in critical point.
Phototriode PH1 mono- terminates the 5th resistance R5 and the first operational amplifier AR1 negative input end IN1-, photosensitive three pole
Another termination input cathode of pipe PH1；First resistor R1 (positive current-limiting resistance) and 10V zener diode D1 series connection, effect be to
Light-operated circuit provides 10V voltage；Second resistance R2 connects partial pressure with 3rd resistor R3, (compares to the first operational amplifier AR1
Device) positive input terminal IN1+ and second operational amplifier AR2 (comparator) positive input terminal IN2+ provide comparison voltage, the 5th electricity
Resistance R5 connect partial pressure with phototriode PH1, and the first operational amplifier AR1 (comparator) negative input end IN1- is given to feed back photoelectricity turn
Change signal；4th resistance R4 connects with diode D2, is connect respectively in second resistance R2 and the junction 3rd resistor R3 and the first fortune
Amplifier AR1 output end is calculated, effect is the 4th resistance R4 and 3rd resistor R3 when the first operational amplifier AR1 exports low level
Change the comparison voltage of comparator positive input terminal with being parallel to；Second operational amplifier AR2 negative input end IN2- and the first operation
Amplifier AR1 output connection composition one follows circuit, and the 6th intermediate resistance R6 series capacitance C1 carries out signal delay to ground；
Second operational amplifier AR2 output is followed by metal-oxide-semiconductor Q1 grid control metal-oxide-semiconductor switch by the 7th resistance R7 current limliting.
The beneficial effects of the utility model are: the light-controlled switching circuit of 1. the utility model is DC operation, connects and driven in LED
Between dynamic output and LED lamp panel input, the small problem of some high-voltage alternating light-controller operating voltage ranges is overcome；2. practical
Novel light-operated does not influence the PF value and EMC of whole lamp；3. the light-controlled switching circuit operating temperature range of the utility model is wide, small in size
It can be built into inside lamps and lanterns.
It, cannot the above content is specific preferred embodiment further detailed description of the utility model is combined
Assert that the specific implementation of the utility model is only limited to these instructions.For the ordinary skill of the utility model technical field
For personnel, without departing from the concept of the premise utility, a number of simple deductions or replacements can also be made, should all regard
To belong to the protection scope of the utility model.
Claims (7)
1. a kind of LED lamp light-controlled switching circuit, it is characterised in that: including phototriode (PH1), capacitor (C1), metal-oxide-semiconductor
(Q1), the first operational amplifier (AR1), second operational amplifier (AR2), zener diode (D1), second resistance (R2), third
Resistance (R3), the 4th resistance (R4), second operational amplifier (AR2) negative input end and first operational amplifier
(AR1) output end connection composition one follows circuit, second operational amplifier (AR2) positive input terminal and first operation
Amplifier (AR1) positive input terminal is connected, and second operational amplifier (AR2) output end is connected with the metal-oxide-semiconductor (Q1) grid,
Metal-oxide-semiconductor (Q1) collector connects negative pole of output end (OUTPUT-), and metal-oxide-semiconductor (Q1) emitter connects input cathode
(INPUT-)；Described phototriode one end (PH1) is connected with the first operational amplifier (AR1) negative input end, the light
Quick triode (PH1) other end connects input cathode (INPUT-)；Described second resistance (R2) one end is separately connected described steady
Press diode (D1), first operational amplifier (AR1) anode, the second operational amplifier (AR2) positive, described second
Resistance (R2) other end is separately connected the 3rd resistor (R3), the 4th resistance (R4), first operational amplifier
(AR1) positive input terminal and the second operational amplifier (AR2) positive input terminal；Described 3rd resistor (R3) one end is separately connected institute
State second resistance (R2), the 4th resistance (R4), the first operational amplifier (AR1) positive input terminal and second operation
Amplifier (AR2) positive input terminal, 3rd resistor (R3) other end connect input cathode (INPUT-)；4th resistance
(R4) it is just defeated to be separately connected the second resistance (R2), the 3rd resistor (R3), first operational amplifier (AR1) for one end
Enter end and the second operational amplifier (AR2) positive input terminal, the 4th resistance (R4) other end connects first operation
Amplifier (AR1) output end；Described capacitor one end (C1) is connected with the second operational amplifier (AR2) negative input end, described
Another termination negative pole of output end (INPUT-) of capacitor (C1).
2. a kind of LED lamp light-controlled switching circuit according to claim 1, it is characterised in that: the LED lamp light-operated switch
Circuit further includes the 7th resistance (R7), the 7th resistance one end (R7) and the second operational amplifier (AR2) output end phase
Even, the 7th resistance (R7) other end is connected with the metal-oxide-semiconductor (Q1) grid.
3. a kind of LED lamp light-controlled switching circuit according to claim 1, it is characterised in that: the LED lamp light-operated switch
Circuit further includes the 5th resistance (R5), described phototriode (PH1) one end respectively with the 5th resistance (R5) and described
One operational amplifier (AR1) negative input end is connected.
4. a kind of LED lamp light-controlled switching circuit according to claim 3, it is characterised in that: the LED lamp light-operated switch
Circuit further includes first resistor (R1), and described first resistor one end (R1) connects input anode (INPUT+), first electricity
Resistance (R1) other end is separately connected the zener diode (D1), the second resistance (R2), the 5th resistance (R5), described
First operational amplifier (AR1) anode and the second operational amplifier (AR2) anode；Second resistance one end (R2) difference
Connect the zener diode (D1), the first resistor (R1), the 5th resistance (R5), first operational amplifier
(AR1) anode, the second operational amplifier (AR2) anode.
5. a kind of LED lamp light-controlled switching circuit according to claim 4, it is characterised in that: the 5th resistance (R5)
One end is positive with first operational amplifier (AR1) respectively, the second operational amplifier (AR2) is positive, the pressure stabilizing two
Pole pipe (D1) is connected, and the 5th resistance (R5) other end is connected with the first operational amplifier (AR1) negative input end.
6. a kind of LED lamp light-controlled switching circuit according to claim 1, it is characterised in that: the LED lamp light-operated switch
Circuit further includes the 6th resistance (R6) and diode (D2), and described 6th resistance (R6) one end is separately connected first operation and puts
Big device (AR1) output end and the diode (D2), the 6th resistance (R6) other end be separately connected the capacitor (C1) and
Second operational amplifier (AR2) negative input end；Diode one end (D2) connection the 4th resistance (R4), described two
Pole pipe (D2) other end is separately connected the first operational amplifier (AR1) output end and the 6th resistance (R6).
7. a kind of LED light, it is characterised in that: the LED light is built-in with that LED lamp described in any one of claims 1-6 is light-operated to be opened
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Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822044585.3U CN209517577U (en) | 2018-12-06 | 2018-12-06 | A kind of LED lamp light-controlled switching circuit and LED light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822044585.3U CN209517577U (en) | 2018-12-06 | 2018-12-06 | A kind of LED lamp light-controlled switching circuit and LED light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209517577U true CN209517577U (en) | 2019-10-18 |
Family
ID=68194395
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822044585.3U Expired - Fee Related CN209517577U (en) | 2018-12-06 | 2018-12-06 | A kind of LED lamp light-controlled switching circuit and LED light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209517577U (en) |
-
2018
- 2018-12-06 CN CN201822044585.3U patent/CN209517577U/en not_active Expired - Fee Related
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|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191018 |
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| CF01 | Termination of patent right due to non-payment of annual fee |