CN218526470U - Light-operated lamp drive control circuit and controller - Google Patents

Light-operated lamp drive control circuit and controller Download PDF

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Publication number
CN218526470U
CN218526470U CN202222521455.0U CN202222521455U CN218526470U CN 218526470 U CN218526470 U CN 218526470U CN 202222521455 U CN202222521455 U CN 202222521455U CN 218526470 U CN218526470 U CN 218526470U
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constant current
control circuit
circuit
resistor
current chip
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CN202222521455.0U
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王继博
高君阳
李阳
余彬
钱建平
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Zhejiang Yankon Group Co Ltd
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Zhejiang Yankon Group Co Ltd
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Abstract

The utility model provides a light-operated lamp drive control circuit, include: the device comprises a rectifying circuit, a constant current control circuit and a photosensitive induction circuit; the rectifying circuit is connected with the constant current control circuit; the photosensitive induction circuit is connected with the constant current control circuit; the rectification circuit is connected with a mains supply, the rectification circuit rectifies the mains supply into a direct current from an alternating current and outputs the direct current to the constant current control circuit, a voltage threshold value for controlling an LED load switch is arranged in a constant current chip of the constant current control circuit, the photosensitive induction circuit outputs different voltage signals to the constant current chip according to the brightness change of the external environment, when the voltage signals are larger than the opening voltage threshold value of the constant current chip, the LED load is lightened, when the voltage signals are smaller than the closing voltage threshold value of the constant current chip, the LED load is extinguished, and because the photosensitive induction circuit is directly connected with the constant current control circuit, the single chip microcomputer control is omitted, so that the circuit cost is lower.

Description

Light-operated lamp drive control circuit and controller
Technical Field
The utility model relates to a light-operated technical field specifically is a light-operated lamp drive control circuit and controller.
Background
The light-operated lamp is a light which is automatically switched on and off to achieve energy conservation and environmental protection by sensing the brightness change of the external environment, if the external environment is in a daytime state, the light-operated lamp is in a lamp-off state, and when the external environment is at night and light is dark, the light-operated lamp is in a lamp-on state and is used for illumination.
The drive control circuit of present light-operated lamp generally includes detecting element, singlechip and control output unit, and detecting element sends a voltage signal for the singlechip according to photosensitive diode's received signal output, and the singlechip sends a height signal for control output unit according to the voltage signal output who receives, and control output unit sends switching signal for the bright or dim that LED lamp pearl is used for controlling the lamp pearl according to the height signal output received, because this drive circuit controls through the singlechip, leads to the circuit cost higher.
SUMMERY OF THE UTILITY MODEL
Technical problem to be solved
The utility model provides a not enough to prior art, the utility model provides a light-operated lamp drive control circuit and controller has solved the present light-operated lamp drive control circuit who proposes in the above-mentioned background art and need pass through single chip microcomputer control, leads to the problem that the circuit is with high costs.
(II) technical scheme
In order to achieve the above purpose, the utility model discloses a following technical scheme realizes:
a light-operated lamp driving control circuit comprises a rectifying circuit, a constant current control circuit and a photosensitive induction circuit;
the rectifying circuit is connected with the constant current control circuit;
the photosensitive induction circuit is connected with the constant current control circuit;
the constant current control circuit is connected with the LED load;
the rectification circuit is connected with mains supply and rectifies the mains supply from alternating current to direct current to be output to the constant current control circuit;
a voltage threshold value for controlling an LED load switch is arranged in a constant current chip of the constant current control circuit;
the photosensitive induction circuit outputs different voltage signals to the constant current chip according to the brightness change of the external environment, when the voltage signals are larger than the threshold of the starting voltage of the constant current chip, the LED load is lightened, and when the voltage signals are smaller than the threshold of the closing voltage of the constant current chip, the LED load is extinguished.
Preferentially, the photosensitive sensing circuit comprises a first resistor R1, a photosensitive diode Dgm, a first capacitor C1 and a second resistor R2, one end of the first resistor R1 is connected with a VDD pin of the constant current chip U1, the other end of the first resistor R1 is respectively connected with an anode of the photosensitive diode Dgm, one end of the first capacitor C1, a DIM pin of the constant current chip U1 and one end of the second resistor R2, and a cathode of the photosensitive diode Dgm, the other end of the first capacitor C1 and the other end of the second resistor R2 are grounded;
preferentially, the constant current control circuit comprises a constant current chip U1 and a sampling resistor R3, a VDD pin of the constant current chip U1 is connected with one end of a first resistor R1, a DIM pin of the constant current chip U1 is respectively connected with the other end of the first resistor R1, an anode of a photosensitive diode Dgm, one end of a first capacitor C1 and one end of a second resistor R2, a VD pin of the constant current chip U1 is suspended, a CS pin is connected with one end of the sampling resistor R3, a GND pin of the constant current chip U1 is grounded, an NC pin is suspended, a DRAD pin is connected with a cathode of an LED load, the NC pin is suspended, and a VIN pin is connected with an anode output end of the rectifying circuit and an anode of the LED load.
Preferably, a voltage threshold for controlling the LED load switch is set in the constant current chip U1, and the voltage threshold is set to 0.8-2.0V, where 0.8V is a turn-off voltage of the constant current chip U1, 2.0V is a turn-on voltage of the constant current chip U1, and a voltage difference between 0.8V and 2.0V is used as a hysteresis of the light control signal voltage.
The utility model also provides a light-operated lamp drive control ware, the controller is based on as aforesaid any a light-operated lamp drive control circuit.
Advantageous effects
The utility model provides a light-operated lamp drive control circuit and controller possesses following beneficial effect:
the utility model provides a pair of light-operated lamp drive control circuit and controller, including rectifier circuit, constant current control circuit, photosensitive induction circuit, rectifier circuit exports to constant current control circuit after becoming the direct current with the city alternating current rectification, be provided with the voltage threshold value of control LED load switch in constant current control circuit's the constant current chip, photosensitive induction circuit exports different voltage signal for the constant current chip according to external environment's luminance change, when voltage signal is greater than the opening voltage threshold value of constant current chip, the LED load is lighted, when voltage signal is less than the closing voltage threshold value of constant current chip, the LED load is extinguish, because photosensitive induction circuit directly is connected with constant current control circuit, singlechip control has been saved, make the circuit cost lower.
Drawings
Fig. 1 is a block diagram of a circuit structure of a driving control circuit for a light-operated lamp provided by the present invention;
fig. 2 is the utility model provides a light-operated lamp drive control circuit diagram.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.
An embodiment of the utility model provides a light-operated lamp drive control circuit, as shown in fig. 1-2, include: the device comprises a rectifying circuit 1, a constant current control circuit 2 and a photosensitive induction circuit 3;
the rectifying circuit 1 is connected with the constant current control circuit 2;
the photosensitive induction circuit 3 is connected with the constant current control circuit 2;
the constant current control circuit 2 is connected with an LED load;
the rectification circuit 1 is connected with commercial power, and the rectification circuit 1 rectifies the commercial power from alternating current into direct current and outputs the direct current to the constant current control circuit 2;
a voltage threshold value for controlling an LED load switch is arranged in a constant current chip U1 of the constant current control circuit 2;
the photosensitive induction circuit 3 outputs different voltage signals to the constant current chip U1 according to the brightness change of the external environment, when the voltage signals are larger than the threshold of the starting voltage of the constant current chip U1, the LED load is lightened, and when the voltage signals are smaller than the threshold of the closing voltage of the constant current chip U1, the LED load is extinguished.
The photosensitive induction circuit 3 comprises a first resistor R1, a photosensitive diode Dgm, a first capacitor C1 and a second resistor R2, one end of the first resistor R1 is connected with a VDD pin of the constant current chip U1, the other end of the first resistor R1 is respectively connected with the anode of the photosensitive diode Dgm, one end of the first capacitor C1, a DIM pin of the first constant current chip U1 and one end of the second resistor R2, and the cathode of the photosensitive diode Dgm, the other end of the first capacitor C1 and the other end of the second resistor R2 are grounded;
the constant current control circuit comprises a constant current chip U1 and a sampling resistor R3, a VDD pin of the constant current chip U1 is connected with one end of a first resistor R1, a DIM pin of the constant current chip U1 is respectively connected with the other end of the first resistor R1, an anode of a photosensitive diode Dgm, one end of a first capacitor C1 and one end of a second resistor R2, a VD pin of the constant current chip U1 is suspended, a CS pin is connected with one end of the sampling resistor R3, a GND pin of the constant current chip U1 is grounded, an NC pin is suspended, a DRAD pin is connected with a cathode of an LED load, the NC pin is suspended, and a VIN pin is connected with an anode output end of a rectifying circuit and an anode of the LED load.
The constant current chip U1 is internally provided with a voltage threshold for controlling an LED load switch, the voltage threshold is set to be 0.8-2.0V, wherein 0.8V is the closing voltage of the constant current chip U1, 2.0V is the conducting voltage of the constant current chip U1, and the voltage difference between 0.8 and 2.0V is used as the hysteresis of the light control signal voltage. Of course, the voltage threshold value can also be selected according to actual needs.
The rectifying circuit is a rectifying bridge stack BD1, the positive input end of the rectifying bridge stack BD1 is connected with the L end of the live line of the commercial power through a fuse F1, and the negative input end of the rectifying bridge stack BD1 is connected with the N end of the zero line of the commercial power.
The utility model also provides a light-operated lamp drive controller for control above-mentioned drive control circuit.
The working principle is as follows:
when the circuit is switched on, commercial power outputs direct current to the constant current chip U1 after passing through the rectifying circuit, 1 pin of the constant current chip U1 outputs voltage to the first resistor R1, the voltage is divided by the first resistor R1 and the photodiode Dgm and then output to 2 pins of the constant current chip U1, when the light is bright in the daytime, the resistance value of the photodiode Dgm is small, the voltage output to the constant current chip U1 after the voltage is divided by the first resistor R1 and the photodiode Dgm is smaller than a starting voltage threshold (2.0V), the MOS tube in the constant current chip U1 is not switched on, the LED load is not bright, when the light is dark in the night, the resistance value of the photodiode Dgm is large, the voltage output to the constant current chip U1 after the voltage is divided by the first resistor R1 and the photodiode Dgm is larger than the starting voltage threshold (2.0V), the MOS tube in the constant current chip U1 is switched on, the LED load is switched on, when the environment is bright, the voltage is switched on, the constant current chip U1 is switched off, and the constant current chip U1 is switched off (when the voltage is not switched on) and the environment reaches the photosensitive diode 3926.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (5)

1. A light-operated lamp drive control circuit is characterized in that: the device comprises a rectifying circuit, a constant current control circuit and a photosensitive induction circuit;
the rectifying circuit is connected with the constant current control circuit;
the photosensitive induction circuit is connected with the constant current control circuit;
the constant current control circuit is connected with the LED load;
the rectification circuit is connected with mains supply and rectifies the mains supply from alternating current to direct current to be output to the constant current control circuit;
a voltage threshold value for controlling an LED load switch is arranged in a constant current chip of the constant current control circuit;
the photosensitive induction circuit outputs different voltage signals to the constant current chip according to the brightness change of the external environment, when the voltage signals are larger than the threshold of the starting voltage of the constant current chip, the LED load is lightened, and when the voltage signals are smaller than the threshold of the closing voltage of the constant current chip, the LED load is extinguished.
2. A light-operated lamp driving control circuit as defined in claim 1, wherein: the photosensitive induction circuit comprises a first resistor R1, a photosensitive diode Dgm, a first capacitor C1 and a second resistor R2, one end of the first resistor R1 is connected with a VDD pin of the constant current chip U1, the other end of the first resistor R1 is connected with the anode of the photosensitive diode Dgm, one end of the first capacitor C1, the DIM pin of the constant current chip U1 and one end of the second resistor R2, and the cathode of the photosensitive diode Dgm, the other end of the first capacitor C1 and the other end of the second resistor R2 are grounded.
3. A light-operated lamp driver control circuit as claimed in claim 1, characterized in that: the constant current control circuit comprises a constant current chip U1 and a sampling resistor R3, a VDD pin of the constant current chip U1 is connected with one end of a first resistor R1, a DIM pin of the constant current chip U1 is connected with the other end of the first resistor R1, an anode of a photosensitive diode Dgm, one end of a first capacitor C1 and one end of a second resistor R2 respectively, a VD pin of the constant current chip U1 is suspended, a CS pin is connected with one end of the sampling resistor R3, a GND pin of the constant current chip U1 is grounded, an NC pin is suspended, a DRAD pin is connected with a cathode of an LED load, and a VIN pin is connected with an anode output end of a rectifying circuit and an anode of the LED load.
4. A light-operated lamp driver control circuit as claimed in claim 3, characterized in that: the voltage threshold value for controlling the LED load switch is set to be 0.8-2.0V in the constant current chip U1, wherein 0.8V is the closing voltage of the constant current chip U1, 2.0V is the conducting voltage of the constant current chip U1, and the voltage difference between 0.8 and 2.0V is used as the hysteresis of the light-operated signal voltage.
5. A light-operated lamp driving controller characterized by: the controller is based on a light-operated lamp driving control circuit as claimed in any one of claims 1-4.
CN202222521455.0U 2022-09-20 2022-09-20 Light-operated lamp drive control circuit and controller Active CN218526470U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202222521455.0U CN218526470U (en) 2022-09-20 2022-09-20 Light-operated lamp drive control circuit and controller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202222521455.0U CN218526470U (en) 2022-09-20 2022-09-20 Light-operated lamp drive control circuit and controller

Publications (1)

Publication Number Publication Date
CN218526470U true CN218526470U (en) 2023-02-24

Family

ID=85246770

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202222521455.0U Active CN218526470U (en) 2022-09-20 2022-09-20 Light-operated lamp drive control circuit and controller

Country Status (1)

Country Link
CN (1) CN218526470U (en)

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