CN206674248U - A kind of LED drive power for carrying photo controller - Google Patents
A kind of LED drive power for carrying photo controller Download PDFInfo
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- CN206674248U CN206674248U CN201720255705.7U CN201720255705U CN206674248U CN 206674248 U CN206674248 U CN 206674248U CN 201720255705 U CN201720255705 U CN 201720255705U CN 206674248 U CN206674248 U CN 206674248U
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Abstract
The utility model discloses a kind of LED drive power for carrying photo controller, including with exchanging the common mode inhibition lattice network electrically connected and the photosensitive detection circuit for detecting ambient light, the common mode inhibition lattice network has been sequentially connected with primary rectifier filter circuit, transformer circuit and secondary commutation filter circuit, the secondary commutation filter circuit output end is connected with LED, the voltage feedback circuit for exporting feedback voltage signal according to photosensitive detection circuit detection signal is sequentially connected between the photosensitive detection circuit and transformer circuit, for the switch controlled circuit according to voltage feedback circuit feedback voltage signal output control signal, change transformer circuit output voltage size for controlling its break-make according to switch controlled circuit control signal so as to realize the switching tube circuit of LED switch.
Description
[technical field]
It the utility model is related to a kind of LED drive power for carrying photo controller.
[background technology]
LED in lighting field using more and more extensive, for LED Power Management Design also more come also more so that band is intelligently
The system of the control LED of design ceaselessly occurs, and the intelligent light controlled lamp bright at night that goes out daytime also produces therewith, due to former
Intelligent light-controlled system is both for illuminators such as traditional incandescent lamps and fluorescent lamp, wherein photosensitive control circuit is required for independence
Electric power system, close output all close input high pressure with controllable silicon or relay, although can be controlled using such system
LED processed, but wiring is complicated when being so that installation, and control system is complicated, increases unnecessary circuit control cost.
[utility model content]
The utility model overcomes the deficiency of above-mentioned technology, there is provided a kind of LED drive power for carrying photo controller
To achieve the above object, the utility model employs following technical proposal：
A kind of LED drive power for carrying photo controller, including with exchange electrical connection common mode inhibition lattice network 1 and
For detecting the photosensitive detection circuit 2 of ambient light, the common mode inhibition lattice network 1 has been sequentially connected with primary rectifier filtered electrical
Road 3, transformer circuit 4 and secondary commutation filter circuit 5, the output end of secondary commutation filter circuit 5 are connected with LED, institute
State and be sequentially connected between photosensitive detection circuit 2 and transformer circuit 4 for being exported instead according to the detection signal of photosensitive detection circuit 2
The voltage feedback circuit 6 of feedthrough voltage signal, for the switch according to the feedback voltage signal output control signal of voltage feedback circuit 6
Pipe control circuit 7, for controlling its break-make to export electricity to change transformer circuit 4 according to the control signal of switch controlled circuit 7
Size is pressed so as to realize the switching tube circuit 8 of LED switch.
5 another output end of secondary commutation filter circuit, which is connected with, to be used for photosensitive detection circuit 2, voltage feedback circuit
6th, switch controlled circuit 7, the detection control power supply circuit 9 of the pipe circuit 8 that opens the light power supply.
The photosensitive detection circuit 2 includes detection chip U3 and photodiode RES-LED, and the detection chip U3 draws
1. pin is connected with electric capacity C6 one end, photodiode RES-LED positive terminals, detection control power supply circuit 9 respectively, electric capacity C6 is another
End ground connection, the photodiode RES-LE other ends are connected with resistance R25 one end, resistance R14 one end respectively by resistance R3,
The resistance R25 other ends are grounded, and 6. resistance 614 is connected with detection chip U3 pins, 2. the detection chip U3 pins are grounded, described
7. detection chip U3 pins are connected with voltage feedback circuit 6,8. the detection chip U3 pins are grounded.
The voltage feedback circuit 6 includes photoelectrical coupler OC, the photoelectrical coupler OC inputs negative pole end ground connection, institute
State photoelectrical coupler OC input positive terminals to be connected with photosensitive detection circuit 2, resistance R18 one end respectively, the resistance R18 other ends and inspection
Observing and controlling power supply circuit 9 connects, the photoelectrical coupler OC output negative poles end ground connection, the photoelectrical coupler OC output cathodes end
It is connected respectively with resistance R10 one end, resistance R9 one end, switch controlled circuit 7 by resistance R21, another terminations of resistance R10
Ground, resistance R9 other ends ground connection, resistance R34 are connected in parallel with resistance R9, diode D2 positive terminals ground connection, diode D2 negative pole ends
It is connected by resistance R7 with switch controlled circuit 7.
The switch controlled circuit 7 includes control chip U1, the control chip U1 pins 1. with switching tube circuit 8
2. connection, the control chip U1 pins are grounded, 3. the control chip U1 pins are grounded by electric capacity C7, resistance R11, described
4. control chip U1 pins are connected with voltage feedback circuit 6,5. the control chip U1 pins are grounded by electric capacity EC2, described
6. control chip U1 pins are connected by resistance R12 with switching tube circuit 8.
The switching tube circuit 8 includes FET Q1, and the FET Q1 drain electrode ends connect with transformer circuit 4
Connect, the FET Q1 source terminals are connected with resistance R19 one end, resistance R13 one end, electric capacity C8 one end respectively, and resistance R19 is another
One end is grounded, and the resistance R13 other ends are connected with FET Q1 gate terminals, switch controlled circuit 7 respectively, the electric capacity C8 other ends
It is connected with FET Q1 drain electrode ends, resistance R20, resistance R27 are connected in parallel with resistance R19 respectively.
The beneficial effects of the utility model are：
The utility model utilizes the switch of the diode of LED, when driving voltage is less than its blanking voltage Vf values,
LED light emitting diodes are not turned on closing LED automatically, so there is no need to completely close output voltage, as long as voltage is reduced to
LED blanking voltage Vf values, while be reduced to the output voltage in the case of LED blanking voltage Vf values and remain to photosensitive detection
Circuit, voltage feedback circuit, the circuits such as pipe control circuit that open the light power supply, save whereabouts photosensitive detection circuit, voltage feedback circuit with
And the circuit such as switch controlled circuit is additionally powered, make its normal work, while reduce and completely close voltage output and need more
Control device metal-oxide-semiconductor or controllable silicon or relay.
[brief description of the drawings]
Fig. 1 is structural representation of the present utility model；
Fig. 2 is common mode inhibition lattice network schematic diagram；
Fig. 3 is photosensitive detection circuit schematic diagram；
Fig. 4 is primary rectifier filter circuit schematic diagram；
Fig. 5 is transformation transformer circuit schematic diagram；
Fig. 6 is secondary commutation filter circuit schematic diagram；
Fig. 7 is voltage feedback circuit schematic diagram；
Fig. 8 is switch controlled circuit diagram；
Fig. 9 is switching tube circuit diagram；
Figure 10 is detection control power supply circuit.
[embodiment]
It is described in further detail below in conjunction with the accompanying drawings with embodiment of the present utility model：
As shown in figure 1, a kind of LED drive power for carrying photo controller, including with exchanging the common mode inhibition of electrical connection
Lattice network 1 and the photosensitive detection circuit 2 for detecting ambient light, the common mode inhibition lattice network 1 have been sequentially connected with just
Level current rectifying and wave filtering circuit 3, transformer circuit 4 and secondary commutation filter circuit 5, the output end of secondary commutation filter circuit 5 with
LED connects, and has been sequentially connected between the photosensitive detection circuit 2 and transformer circuit 4 for being examined according to photosensitive detection circuit 2
Survey the voltage feedback circuit 6 of signal output feedback voltage signal, controlled for being exported according to the feedback voltage signal of voltage feedback circuit 6
The switch controlled circuit 7 of signal processed, for controlling its break-make to change transformer according to the control signal of switch controlled circuit 7
The output voltage size of circuit 4 so as to realize LED switch switching tube circuit 8.
Wherein, 5 another output end of secondary commutation filter circuit is connected with for anti-to photosensitive detection circuit 2, voltage
Current feed circuit 6, switch controlled circuit 7, the detection control power supply circuit 9 of the pipe circuit 8 that opens the light power supply.
As shown in Fig. 2 the photosensitive detection circuit 2 includes detection chip U3 and photodiode RES-LED, the inspection
Chip U3 pins are surveyed 1. to be connected with electric capacity C6 one end, photodiode RES-LED positive terminals, detection control power supply circuit 9 respectively,
The electric capacity C6 other ends be grounded, the photodiode RES-LE other ends by resistance R3 respectively with resistance R25 one end, resistance
R14 one end is connected, and 6. resistance R25 other ends ground connection, resistance 614 is connected with detection chip U3 pins, the detection chip U3 draws
2. pin is grounded, 7. the detection chip U3 pins are connected with voltage feedback circuit 6,8. the detection chip U3 pins are grounded.
As shown in fig. 7, the voltage feedback circuit 6 includes photoelectrical coupler OC, the photoelectrical coupler OC inputs are negative
Extreme ground connection, the photoelectrical coupler OC inputs positive terminal are connected with photosensitive detection circuit 2, resistance R18 one end respectively, resistance
The R18 other ends are connected with detection control power supply circuit 9, the photoelectrical coupler OC output negative poles end ground connection, the photoelectric coupling
Device OC output cathodes end is connected with resistance R10 one end, resistance R9 one end, switch controlled circuit 7 respectively by resistance R21, electricity
R10 other ends ground connection, resistance R9 other ends ground connection are hindered, resistance R34 is connected in parallel with resistance R9, diode D2 positive terminals ground connection,
Diode D2 negative pole ends are connected by resistance R7 with switch controlled circuit 7.
As shown in figure 8, the switch controlled circuit 7 includes control chip U1, the control chip U1 pins 1. with
Switching tube circuit 8 is connected, 2. the control chip U1 pins are grounded, 3. the control chip U1 pins pass through electric capacity C7, resistance
R11 is grounded, and 4. the control chip U1 pins are connected with voltage feedback circuit 6,5. the control chip U1 pins pass through electric capacity
EC2 is grounded, 6. the control chip U1 pins are connected by resistance R12 with switching tube circuit 8.
As shown in figure 9, the switching tube circuit 8 includes FET Q1, the FET Q1 drain electrode ends and transformation
Device circuit 4 is connected, and the FET Q1 source terminals are connected with resistance R19 one end, resistance R13 one end, electric capacity C8 one end respectively,
The resistance R19 other ends are grounded, and the resistance R13 other ends are connected with FET Q1 gate terminals, switch controlled circuit 7 respectively, electricity
Hold the C8 other ends to be connected with FET Q1 drain electrode ends, resistance R20, resistance R27 are connected in parallel with resistance R19 respectively.
Wherein, Fig. 2 is common mode inhibition lattice network schematic diagram；Fig. 4 is primary rectifier filter circuit schematic diagram；Fig. 5 is change
Pressure transformer circuit diagram；Fig. 6 is secondary commutation filter circuit schematic diagram；Figure 10 is detection control power supply circuit.
Operation principle is as follows：
At day, the photodiode RES-LE conductings in photosensitive detection circuit 2, detection chip U3 shut-off Voltage Feedback electricity
Photoelectrical coupler OC in road 6, voltage feedback circuit 6 is set to export low-voltage feedback signal, switching tube to pipe control circuit 7 of opening the light
When control circuit 7 receives low-voltage feedback signal, transformer circuit 4 is controlled to reduce transformer circuit by switching tube circuit 8
Output voltage to LED blanking voltages, now LED is closed.
Similarly, when it is dark, the photodiode RES-LE in photosensitive detection circuit 2 is not turned on, detection chip U3 electric conductions
The photoelectrical coupler OC in feedback circuit 6 is pressed, makes voltage feedback circuit 6 to the output HIGH voltage feedback letter of pipe control circuit 7 of opening the light
Number, when switch controlled circuit 7 receives high voltage feedback signal, control the increase of transformer circuit 4 to become by switching tube circuit 8
Transformer circuits output voltage is to LED ON operation voltages, the now shinny work of LED.
Claims (6)
- A kind of 1. LED drive power for carrying photo controller, it is characterised in that：Including the common mode inhibition net with exchanging electrical connection Network circuit (1) and the photosensitive detection circuit (2) for detecting ambient light, the common mode inhibition lattice network (1) are sequentially connected with There are primary rectifier filter circuit (3), transformer circuit (4) and secondary commutation filter circuit (5), the secondary commutation filter circuit (5) output end is connected with LED, has been sequentially connected between the photosensitive detection circuit (2) and transformer circuit (4) for basis Photosensitive detection circuit (2) detection signal exports the voltage feedback circuit (6) of feedback voltage signal, for according to voltage feedback circuit (6) the switch controlled circuit (7) of feedback voltage signal output control signal, for according to switch controlled circuit (7) control Signal controls its break-make to change transformer circuit (4) output voltage size so as to realize the switching tube circuit of LED switch (8)。
- A kind of 2. LED drive power for carrying photo controller according to claim 1, it is characterised in that：The secondary Current rectifying and wave filtering circuit (5) another output end, which is connected with, to be used for photosensitive detection circuit (2), voltage feedback circuit (6), switch management and control Circuit (7) processed, the detection control power supply circuit (9) of the pipe circuit (8) that opens the light power supply.
- A kind of 3. LED drive power for carrying photo controller according to claim 2, it is characterised in that：It is described photosensitive Detection circuit (2) includes detection chip U3 and photodiode RES-LED, the detection chip U3 pins 1. respectively with electric capacity C6 one end, photodiode RES-LED positive terminals, detection control power supply circuit (9) connection, electric capacity C6 other ends ground connection are described The photodiode RES-LE other ends are connected with resistance R25 one end, resistance R14 one end respectively by resistance R3, and resistance R25 is another 6. end ground connection, resistance 614 are connected with detection chip U3 pins, 2. the detection chip U3 pins are grounded, the detection chip U3 7. pin is connected with voltage feedback circuit (6), 8. the detection chip U3 pins are grounded.
- A kind of 4. LED drive power for carrying photo controller according to claim 2, it is characterised in that：The voltage Feedback circuit (6) includes photoelectrical coupler OC, the photoelectrical coupler OC inputs negative pole end ground connection, the photoelectrical coupler OC Input positive terminal is connected with photosensitive detection circuit (2), resistance R18 one end respectively, the resistance R18 other ends and detection control power supply electricity Road (9) connects, and the photoelectrical coupler OC output negative poles end ground connection, the photoelectrical coupler OC output cathodes end passes through resistance R21 is connected with resistance R10 one end, resistance R9 one end, switch controlled circuit (7) respectively, resistance R10 other ends ground connection, resistance The R9 other ends are grounded, and resistance R34 is connected in parallel with resistance R9, and diode D2 positive terminals ground connection, diode D2 negative pole ends pass through electricity Resistance R7 is connected with switch controlled circuit (7).
- A kind of 5. LED drive power for carrying photo controller according to claim 2, it is characterised in that：The switch Pipe control circuit (7) includes control chip U1, and 1. the control chip U1 pins are connected with switching tube circuit (8), the control 2. coremaking piece U1 pins are grounded, 3. the control chip U1 pins are grounded by electric capacity C7, resistance R11, the control chip U1 4. pin is connected with voltage feedback circuit (6), 5. the control chip U1 pins are grounded by electric capacity EC2, the control chip 6. U1 pins are connected by resistance R12 with switching tube circuit (8).
- A kind of 6. LED drive power for carrying photo controller according to claim 2, it is characterised in that：The switch Pipe circuit (8) includes FET Q1, and the FET Q1 drain electrode ends are connected with transformer circuit (4), the field-effect Pipe Q1 source terminals are connected with resistance R19 one end, resistance R13 one end, electric capacity C8 one end respectively, resistance R19 other ends ground connection, resistance The R13 other ends are connected with FET Q1 gate terminals, switch controlled circuit (7) respectively, the electric capacity C8 other ends and FET Q1 drain electrode ends are connected, and resistance R20, resistance R27 are connected in parallel with resistance R19 respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720255705.7U CN206674248U (en) | 2017-03-15 | 2017-03-15 | A kind of LED drive power for carrying photo controller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720255705.7U CN206674248U (en) | 2017-03-15 | 2017-03-15 | A kind of LED drive power for carrying photo controller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206674248U true CN206674248U (en) | 2017-11-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720255705.7U Active CN206674248U (en) | 2017-03-15 | 2017-03-15 | A kind of LED drive power for carrying photo controller |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114364085A (en) * | 2021-09-28 | 2022-04-15 | 浙江沪乐电气设备制造有限公司 | LED navigation light control system and light source detection early warning method |
-
2017
- 2017-03-15 CN CN201720255705.7U patent/CN206674248U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114364085A (en) * | 2021-09-28 | 2022-04-15 | 浙江沪乐电气设备制造有限公司 | LED navigation light control system and light source detection early warning method |
| CN114364085B (en) * | 2021-09-28 | 2023-08-29 | 浙江沪乐电气设备制造有限公司 | LED navigation lamp control system and light source detection early warning method |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20210120 Address after: No.33, Xiaolan Industrial Avenue, Xiaolan Town, Zhongshan City, Guangdong Province, 528415 Patentee after: Guangdong Longde Electronic Technology Co.,Ltd. Address before: No.33, middle Industrial Avenue, Xiaolan Town, Zhongshan City, Guangdong Province, 528415 Patentee before: ZHONGSHAN LONGDE DIGITAL ELECTRONIC TECHNOLOGY Co.,Ltd. |