CN203748061U - A new driver for sensing LEDs - Google Patents

Abstract

The utility model discloses a novel driver for responding to LED, its characterized in that: the LED constant current source power supply comprises a purification and voltage-stabilized power supply unit which can inhibit and eliminate harmonic components in the LED constant current source power supply and adjust the LED constant current source into a constant voltage source, wherein the purification and voltage-stabilized power supply unit is connected with a power supply which can turn on or off part of an LED control circuit according to illumination and a light control unit which adjusts a non-illumination monitoring circuit into a dormant state, the purification and voltage-stabilized power supply unit comprises a rectifying circuit which converts alternating current generated by the constant current source into direct current, a first-stage power supply purification circuit and a second-stage power supply purification circuit are connected to the rectifying circuit, and a voltage stabilizing circuit is connected to the second-stage power supply. The utility model aims at overcoming the weak point among the prior art, provide one kind can simple structure for respond to LED's novel driver.

Description

A new driver for sensing LEDs

technical field

The utility model relates to a novel driver for sensing LEDs.

Background technique

The LED constant current source is used as the power supply of control circuits such as time-delay switches. Since the voltage difference of the constant-current source is large when the load is turned on and the load is disconnected, and the harmonic components of the power output by the constant-current source are large, the time-delay switch Easy to control circuit interference.

In the existing induction LED driver, even if the illuminance is sufficient or the power supply of the control circuit and the non-illuminance monitoring circuit are always in the working state during the day, this will consume a large amount of standby power consumption, which is not conducive to energy saving and environmental protection.

Therefore, the existing inductive LED driver needs to be further improved.

Utility model content

The purpose of the utility model is to overcome the deficiencies in the prior art and provide a new driver with simple structure for sensing LEDs.

In order to achieve the above object, the utility model adopts the following scheme:

A new type of driver for inductive LEDs is characterized in that it includes a purification and regulated power supply unit that can suppress and eliminate harmonic components in the LED constant current source power supply and adjust the LED constant current source to a constant voltage source. The purification stabilized power supply unit is connected with a power supply that can turn on or off part of the LED control circuit according to the illuminance and a light control unit that adjusts the non-illuminance monitoring circuit to a dormant state. A rectification circuit for converting alternating current into direct current, a first-stage power purification circuit and a second-stage power purification circuit are connected to the rectification circuit, and a voltage stabilizing circuit is connected to the second-stage power purification circuit.

A novel driver for inductive LEDs as described above is characterized in that the voltage stabilizing circuit includes a primary voltage stabilizing circuit and a secondary voltage stabilizing circuit, and the primary voltage stabilizing circuit and the secondary voltage stabilizing circuit There is a third-stage power purification circuit between them, the first-stage voltage stabilizing circuit includes a transistor Q2 connected to the second-stage power purification circuit, and a resistor R23 is connected between the collector and the base of the transistor Q2 A Zener diode Z2 is connected to the base of the triode Q2, and a capacitor C4 is parallelly connected to both ends of the Zener diode Z2, and the emitter of the triode Q1 is connected to the third-stage power purification circuit 25 .

A new type of driver for inductive LEDs as described above is characterized in that a fourth-stage power supply purification circuit is provided between the first-stage voltage stabilization circuit and the third-stage power supply purification circuit, and the fourth-stage power supply purification circuit The circuit includes a resistor R3 connected in series between the second-stage power purification circuit and the primary voltage stabilizing circuit, a capacitor C5 and a capacitor EC4 are arranged between the resistor R3 and the primary voltage stabilizing circuit, and the resistor R3 Capacitor C6 and capacitor EC5 are provided between the second-stage power supply purification circuit.

A novel driver for inductive LEDs as described above is characterized in that the rectification circuit includes a diode D1 connected in series to one end of the LED constant current source 1, and a capacitor is connected in parallel to the cathode of the diode D1 EC7, the first-stage power purification circuit includes a common-mode inductor L1 connected to the rectifier circuit, a capacitor C7 is connected in parallel between the common-mode inductor L1 and the rectifier circuit, and a capacitor C7 is connected between the common-mode inductor L1 Connect capacitor C6 in parallel with the second-stage power purification circuit.

A new type of driver for inductive LEDs as described above is characterized in that the second-stage power supply purification circuit includes an inductor L2 or a resistor R3 connected in series to the inductor L1, and the inductance L2 or resistor R3 and the voltage regulator A capacitor C5 and a capacitor EC4 are connected in parallel between the circuits, and a capacitor C6 and a capacitor EC5 are connected in parallel between the inductance L2 or the resistor R3 and the first-stage power purification circuit.

A new type of driver for inductive LEDs as described above is characterized in that the third-stage power supply purification circuit includes an inductor L3 or a resistor R2, and is connected in parallel between the inductor L3 or resistor R2 and the primary voltage regulator circuit. The capacitor C3 and the capacitor EC3 are connected in parallel between the inductor L3 or the resistor R2 and the secondary voltage stabilizing circuit.

A novel driver for inductive LEDs as described above is characterized in that the secondary voltage stabilizing circuit includes a triode Q1 connected to the third-stage power supply purification circuit, and the collector and base of the triode Q1 are parallel A resistor R1 is connected, a Zener diode Z1 is connected in series on the base of the triode Q1, a capacitor C2 is connected in parallel at both ends of the Zener diode Z1, and a capacitor C2 is connected in parallel at the emitter of the triode Q2. capacitor C1 and capacitor EC1.

A novel driver for inductive LEDs as described above is characterized in that the secondary voltage regulator circuit includes a three-terminal voltage regulator U1 connected to the third-stage power supply purification circuit, and the three-terminal voltage regulator U1 A capacitor C2 is connected in parallel with the third-stage power purification circuit, and a capacitor C1 and a capacitor EC1 are connected in parallel at the output end of the three-terminal regulator U1.

A new type of driver for sensing LEDs as described above is characterized in that the light control unit includes a triode Q1 or a NAND gate or a NOR gate, and on the collector of the triode Q1 or a NAND gate or a NOR gate A resistor R3 is connected in series, and the other end of the resistor R3 is connected to the collector of the transistor Q2, and the base of the transistor Q2 is connected to the collector of the transistor Q1 or the NAND gate or the gate of the transistor Q2. A Zener diode Z1 is connected in series on the base, a capacitor EC1 and a capacitor C2 are connected between the emitter of the triode Q2 and the Zener diode Z1, and an antenna power interface and a resistor are connected to the emitter of the triode Q2. R5.

A novel driver for inductive LEDs as described above is characterized in that a capacitor C1 is connected in parallel at both ends of the Zener diode Z1, and the capacitor C1 is connected in parallel with the collector and emitter of the triode Q2, A capacitor EC2 or/and a Zener diode Z2 are connected in parallel between the transistor Q1 or the NAND gate 31 and the transistor Q2 .

In summary, the utility model has the beneficial effects relative to the prior art as follows:

The purifying and stabilizing power supply unit in the utility model can effectively suppress and eliminate the harmonic components in the LED constant current source power supply and adjust the power supply with large fluctuations in the LED constant current source due to the large voltage difference between turning on and off the LED lamp into a constant voltage source , to provide a reliable purification power supply for the control system.

The light control unit of the utility model can close the power supply of some control circuits according to the light intensity, put the non-light intensity monitoring circuit into sleep, reduce standby power consumption, and achieve energy saving and environmental protection.

Description of drawings

1 to 9 are schematic diagrams of the first to ninth implementations of the purified regulated power supply unit;

10-18 are schematic diagrams of the first to third implementations of the light control unit.

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments:

As shown in Figure 1, a new driver for inductive LEDs, including a purification and regulated power supply unit 2 that can suppress and eliminate the harmonic components in the LED constant current source power supply and adjust the LED constant current source 1 to a constant voltage source , on the said purification stabilized power supply unit 2 is connected with the light control unit 3 which can turn on or off the power supply of some LED control circuits according to the illuminance and adjust the non-illuminance monitoring circuit to the dormant state. It includes a rectification circuit 21 that converts the alternating current generated by the constant current source 1 into a direct current. The rectification circuit 21 is connected with a first-stage power purification circuit 22 and a second-stage power purification circuit 23. In the second stage A voltage stabilizing circuit 24 is connected to the power purification circuit 23 .

In the utility model, the voltage stabilizing circuit 24 includes a primary voltage stabilizing circuit 241 and a secondary voltage stabilizing circuit 242, and a third power supply is provided between the primary voltage stabilizing circuit 241 and the secondary voltage stabilizing circuit 242 Purification circuit 25, the first-stage voltage stabilizing circuit 22 includes a triode Q2 connected to the second-stage power supply purification circuit 23, a resistor R23 is connected between the collector and the base of the triode Q2, and the triode The base of Q2 is connected with a voltage stabilizing diode Z2 , and a capacitor C4 is connected in parallel at both ends of the voltage stabilizing diode Z2 , and the emitter of the triode Q1 is connected with a third-stage power purification circuit 25 .

In the utility model, a fourth-stage power supply purification circuit 26 is provided between the first-stage voltage stabilizing circuit 241 and the third-stage power supply purification circuit 25, and the fourth-stage power supply thermal purification circuit 26 includes a Resistor R3 between the primary power purification circuit 23 and the primary voltage stabilizing circuit 241, capacitor C5 and capacitor EC4 are arranged between the resistor R3 and the primary voltage stabilizing circuit 241, between the resistor R3 and the secondary power supply A capacitor C6 and a capacitor EC5 are provided between the purification circuit 23 .

The rectifier circuit 21 described in the utility model includes a diode D1 connected in series to one end of the LED constant current source 1, and a capacitor EC7 is connected to the cathode of the diode D1 in parallel. The first stage power supply purification circuit 22 It includes a common-mode inductor L1 connected to the rectifier circuit 21, a capacitor C7 is connected in parallel between the common-mode inductor L1 and the rectifier circuit 21, and a capacitor C7 is connected between the common-mode inductor L1 and the second-stage power purification circuit 23 Connect capacitor C6 in parallel.

The second-stage power supply purification circuit 23 in the utility model includes an inductance L2 or a resistor R3 connected in series on the inductance L1, and a capacitor C5 and a capacitor EC4 are connected in parallel between the inductor L2 or the resistor R3 and the voltage stabilizing circuit 24 A capacitor C6 and a capacitor EC5 are connected in parallel between the inductor L2 or the resistor R3 and the first-stage power purification circuit 22 .

In the utility model, the third-stage power supply purification circuit 25 includes an inductance L3 or a resistor R2, and a capacitor C3 and a capacitor EC3 are connected between the inductance L3 or the resistor R2 and the primary voltage stabilizing circuit 241. A capacitor C2 and a capacitor EC2 are connected in parallel between R2 and the secondary voltage stabilizing circuit 242 .

The secondary voltage stabilizing circuit 242 described in the utility model includes a triode Q1 connected with the third-stage power supply purification circuit 25, and a resistor R1 is connected in parallel on the collector and base of the triode Q1, and a resistor R1 is connected in parallel with the triode Q1. A voltage stabilizing diode Z1 is connected in series on the base, a capacitor C2 is connected in parallel at both ends of the voltage stabilizing diode Z1 , and a capacitor C1 and a capacitor EC1 are connected in parallel at the emitter of the triode Q2.

The secondary voltage stabilizing circuit 242 described in the utility model comprises a three-terminal voltage stabilizer U1 connected with the third-level power supply purification circuit 25, and is connected between the three-terminal voltage stabilizer U1 and the third-level power supply purification circuit 25. A capacitor C2 is connected, and a capacitor C1 and a capacitor EC1 are connected in parallel at the output end of the three-terminal regulator U1.

In the utility model, the light control unit 3 includes a triode Q1 or a NAND gate 31 or a NOR gate 32, and a resistor R3 is connected in series on the collector of the triode Q1 or a NAND gate 31 or a NOR gate 32. The other end of the resistor R3 is connected to the collector of the transistor Q2, the base of the transistor Q2 is connected to the collector of the transistor Q1 or the NAND gate 31 or the NOR gate 32, and the base of the transistor Q2 is connected in series with Zener diode Z1, a capacitor EC1 and a capacitor C2 are connected between the emitter of the triode Q2 and the Zener diode Z1, and an antenna power interface and a resistor R5 are connected to the emitter of the triode Q2.

In the utility model, a capacitor C1 is connected in parallel at both ends of the voltage stabilizing diode Z1, and the capacitor C1 is connected in parallel with the collector and emitter of the triode Q2. A capacitor EC2 or/and a Zener diode Z2 are connected in parallel between 32 and the transistor Q2.

Below in conjunction with accompanying drawing, further describe the utility model technical solution:

As shown in Figure 1, in the first embodiment of the utility model's purified and regulated power supply unit, the alternating current generated by the constant current source is rectified by the diode D1 and the rectified and filtered circuit composed of the capacitor EC7 to form a direct current. The power supply passes through a filter circuit composed of common mode inductor L1, capacitor C6, and capacitor C7, which is the first-stage purification power supply circuit, suppressing and eliminating harmonic components in the power supply. Capacitor EC4, capacitor C5, capacitor EC5, capacitor C6, and inductance L2 form a π-type filter, which is the second-stage purification power supply circuit. Resistor R2, Zener diode Z1, transistor Q1, and capacitor C4 form a first-stage voltage regulator circuit, which adjusts the voltage to an appropriate voltage value that meets the input voltage requirements of the three-terminal regulator. Capacitor C2, capacitor EC2, inductor L3, capacitor C3, and capacitor EC3 form a π-type filter as the third-stage power purification circuit. After the voltage stabilization and electronic filtering of the U1 three-terminal regulator, the power supply is well purified and eliminated. The harmonic components in the power supply are eliminated, and the purified power supply can be used as the power supply of the control circuit.

As shown in Figure 2, the second embodiment of the utility model purification stabilized power supply unit, for control circuits with relatively low power requirements, such as acousto-optic control delay switch and human body induction delay switch; 2 power purification circuit, which can reduce the manufacturing cost of the driver. The alternating current generated by the constant current source is rectified by diode D1 and filtered by capacitor EC7 to form direct current. The power supply passes through the first-stage power purification circuit composed of common-mode inductor L1, capacitor C6, and capacitor C7 to suppress and eliminate harmonic components in the power supply. Capacitor EC4, capacitor C5, capacitor EC5, capacitor C6, and resistor R3 form a π-type filter, which is a second-stage power purification circuit. Resistor R2, Zener diode Z1, transistor Q1, and capacitor C4 form a first voltage stabilizing and electronic filter circuit to adjust the voltage to an appropriate voltage value that meets the input voltage requirements of the three-terminal voltage stabilizer. Capacitor C2, capacitor EC2, inductor L3, capacitor C3, and capacitor EC3 form a π-type filter, which is the third-stage power supply purification circuit. After the three-terminal voltage stabilization of U1, the power supply reaches purification, and the purified power supply can be used as Control circuit power supply.

As shown in Fig. 3, in the third implementation mode of the purified and stabilized power supply unit of the present invention, the alternating current generated by the constant current source is rectified by the diode D1 and the rectified and filtered circuit composed of the capacitor EC7 to form a direct current. The power supply passes through a filter circuit composed of common-mode inductor L1, capacitor C6, and capacitor C7, which is the first-stage power supply purification circuit to suppress and eliminate harmonic components in the power supply. Capacitor EC4, capacitor C5, capacitor EC5, capacitor C6, and resistor R4 form a π-type filter, which is a second-stage power purification circuit. Capacitor EC4, capacitor C5, capacitor EC5, capacitor C6, and resistor R4 form a π-type filter, which is a second-stage power purification circuit. Resistor R2, Zener diode Z1, transistor Q1, and capacitor C4 form the first-stage voltage regulator circuit and electronic filter circuit to adjust the voltage to an appropriate voltage value that meets the input voltage requirements of the three-terminal regulator. Capacitor C2, capacitor EC2, resistor R1, capacitor C3, and capacitor EC3 form a π-type filter, which is a third-stage power supply purification circuit to suppress and eliminate harmonic components in the power supply. After the power supply is stabilized by U1 three-terminal voltage regulator and electronically filtered, the power supply is purified, and the purified power supply can be used as the power supply of the control circuit.

As shown in Fig. 4, in the fourth implementation mode of the purified and regulated power supply unit of the present invention, the alternating current generated by the constant current source is rectified by the diode D1 and the rectified and filtered circuit composed of the capacitor EC7 to form a direct current. The power supply passes through a filter circuit composed of common-mode inductor L1, capacitor C6, and capacitor C7, which is the first-stage power supply purification circuit to suppress and eliminate harmonic components in the power supply. Capacitor EC6, capacitor C6, capacitor EC5, capacitor C6, and resistor R4 form a π-type filter, which is a second-stage power purification circuit. Capacitor EC5, capacitor C6, capacitor EC4, capacitor C5, and resistor R3 form a π-type filter, which is the fourth-stage power supply purification circuit to suppress and eliminate harmonic components in the power supply. Resistor R2, Zener diode Z1, transistor Q1, and capacitor C4 form a voltage regulator circuit to adjust the voltage to an appropriate voltage value that meets the input voltage requirements of the three-terminal regulator. Capacitor C2, capacitor EC2, inductor L3, capacitor C3, and capacitor EC3 form a π-type filter, which is a third-stage power supply purification circuit that suppresses and eliminates harmonic components in the power supply. After filtering, the power supply is purified, and the purified power supply can be used as a power supply for infrared human body induction and acousto-optic control delay switch control circuits that have lower requirements on the harmonic components of the power supply.

As shown in Fig. 5, in the fifth embodiment of the purified and stabilized power supply unit of the present invention, the alternating current generated by the constant current source is rectified by the diode D1 and rectified and filtered by the capacitor EC7 to form a direct current. The power supply passes through a filter circuit composed of common-mode inductor L1, capacitor C8, capacitor C7, and capacitor EC5, which is the first-stage power supply purification circuit to suppress and eliminate harmonic components in the power supply. Capacitor EC4, capacitor C6, capacitor EC5, capacitor C7, and inductor L2 form a π-type filter, which is a second-stage power purification circuit. Resistor R3, Zener diode Z2, Transistor Q2, and capacitor C5 form a first-stage voltage regulator circuit, which adjusts the voltage to a voltage value that meets the requirements of the second-stage stabilized voltage input voltage. Capacitor C3, capacitor EC2, inductor L3, capacitor C4, and capacitor EC3 form a π-type filter, which is the third-stage power purification circuit. Resistor R1, transistor Q1, capacitor C2, and Zener diode Z1 form the second-stage voltage regulator circuit. The purified power supply can be used as the power supply of the induction delay switch control circuit.

As shown in Figure 6, in the sixth embodiment of the purified and stabilized power supply unit of the present invention, the alternating current generated by the constant current source is rectified by the diode D1 and the rectified and filtered circuit composed of the capacitor EC7 to form a direct current. The power supply passes through a filter circuit composed of common-mode inductor L1, capacitor C8, capacitor C7, and capacitor EC5, which is the first-stage power supply purification circuit to suppress and eliminate harmonic components in the power supply. Capacitor EC4, capacitor C6, capacitor EC5, capacitor C7, and resistor R4 form a π-type filter, which is a second-stage power purification circuit. Resistor R3, Zener diode Z2, Transistor Q2, and capacitor C5 form a first-stage voltage regulator circuit, which adjusts the voltage to a voltage value that meets the requirements of the second-stage stabilized voltage input voltage. Capacitor C3, capacitor EC2, resistor R2, capacitor C4, and capacitor EC3 form a π-type filter, which is a third-stage power purification circuit. Resistor R1, transistor Q1, capacitor C2, and Zener diode Z1 form a second-stage voltage regulator circuit. The purified power can be used as an induction delay switch to control circuit power.

As shown in Figure 7, in the seventh embodiment of the purified and stabilized power supply unit of the present invention, the alternating current generated by the constant current source is rectified by the diode D1 and the rectified and filtered circuit composed of the capacitor EC7 to form a direct current. The power supply passes through a filter circuit composed of common-mode inductor L1, capacitor C8, capacitor C7, and capacitor EC5, which is the first-stage power supply purification circuit to suppress and eliminate harmonic components in the power supply. Capacitor EC4, capacitor C6, capacitor EC5, capacitor C7, and resistor R4 form a π-type filter, which is a second-stage power purification circuit. Resistor R3, Zener diode Z2, Transistor Q2, and capacitor C5 form a first-stage voltage regulator circuit, which adjusts the voltage to a voltage value that meets the requirements of the second-stage stabilized voltage input voltage. Capacitor C3, capacitor EC2, inductor L3, capacitor C4, and capacitor EC3 form a π-type filter, which is the third-stage power purification circuit. Resistor R1, transistor Q1, capacitor C2, and Zener diode Z1 form the second-stage voltage regulator circuit. The purified power supply can be used as the power supply of the induction delay switch control circuit.

As shown in Figure 8, in the eighth embodiment of the purified and stabilized power supply unit of the present invention, the alternating current generated by the constant current source is converted into direct current through the rectification and filter circuit composed of diode D1 and capacitor EC7. The power supply passes through a filter circuit composed of common-mode inductor L1, capacitor C8, capacitor C7, and capacitor EC5, which is the first-stage power supply purification circuit to suppress and eliminate harmonic components in the power supply. Capacitor EC4, capacitor C6, capacitor EC5, capacitor C7, and inductor L2 form a π-type filter, which is a second-stage power purification circuit. Resistor R3, Zener diode Z2, transistor Q2, and capacitor C5 form a voltage regulator circuit to adjust the voltage to a voltage value that meets the requirements of the control circuit. The purified power supply can be used as the power supply of the induction delay switch control circuit.

As shown in Fig. 9, in the ninth embodiment of the purified and stabilized power supply unit of the present invention, the alternating current generated by the constant current source is converted into direct current by the rectification and filtering circuit composed of diode D1 rectification and capacitor EC7 filter capacitor. The power supply passes through a filter circuit composed of common-mode inductor L1, capacitor C8, capacitor C7, and capacitor EC5, which is the first-stage power supply purification circuit to suppress and eliminate harmonic components in the power supply. Capacitor EC4, capacitor C6, capacitor EC5, capacitor C7, and resistor R4 form a π-type filter, which is a second-stage power purification circuit. Resistor R3, voltage stabilizing diode Z2, transistor Q2, capacitor C5, and capacitor EC3 form a voltage stabilizing circuit. The purified power supply can be used as the power supply of the induction delay switch control circuit.

As shown in Figure 10-12, in the first implementation mode of the light control unit of the present utility model, when it is daytime or when the illumination is sufficient, the photosensitive resistor is in a low resistance state, the transistor Q1 is cut off, the transistor Q2 is saturated, and the saturation of the transistor Q2 short-circuits the Zener diode Z1, the emitter of the voltage regulating tube Q3 has no voltage output, which turns off the power supply of the non-illuminance monitoring system to reduce the standby power consumption of the whole machine. The output terminal of resistor R5 is at a low level, and the photoresistor detection terminal of the pyrothermal infrared control circuit and the sound-light control control circuit is set to the prohibition trigger state, so as to ensure that the heat-release infrared control circuit, sound-light control and other time-delay switch control circuits can or when the light intensity is sufficient, triggering is prohibited. At night or when the illumination is dark, the photoresistor is in a high-impedance state, the transistor Q1 is saturated, the transistor Q2 is cut off, the transistor Q3 is turned on, and the emitter output voltage of the transistor Q3 is used. This power supplies power to non-illuminance monitoring circuits including radar antenna power supply, radar antenna and The non-illuminance monitoring circuit and other control circuits enter the working state, the output terminal of the resistor R5 is at a high level, the detection terminal of the photosensitive resistor CDS is at a high level, and the delay switch control circuits such as the pyroelectric infrared control circuit and the sound and light control delay control are allowed to trigger .

As shown in Figure 13-15, the second implementation of the light control unit of the present invention, when daytime or when the light is strong, the photosensitive resistor has low resistance, the input terminals of the NAND gate are all low level, and the output of the NAND gate The end is high level, the triode Q1 is saturated and turned on, the emitter of the triode Q2 has no voltage output, and the power supply of the radar antenna and the non-illuminance control circuit is turned off, so that this part of the circuit enters a dormant state and reduces the standby power consumption of the whole machine; the resistor R5 outputs When the terminal is low level, set the photoresistor detection terminal of the thermal release infrared control circuit and the acousto-optic control circuit to the prohibition trigger state to ensure that the delay switch control circuits such as the thermal release infrared control circuit and the acousto-optic control circuit are in the daytime or when the illuminance is sufficient. , disable triggering. At night or when the light is low, the photoresistor is in a high-impedance state, the input terminal of the NAND gate is high level, the output terminal of the NAND gate is low level, the transistor Q1 is cut off, and the emitter output voltage of the transistor Q2, this power supply is the radar Power supply with the non-illuminance control circuit, the radar antenna and the non-illuminance monitoring circuit enter the working state, the output terminal of the resistor R5 is high level, the detection terminal of the photosensitive resistor CDS is high level, the pyro-infrared control circuit, the sound-light control delay control, etc. The delay switch control circuit allows triggering.

As shown in Figures 16-18, the third implementation of the light control unit of the present invention, when the daytime or when the light is strong, the photosensitive resistor has low resistance, the input terminals of the NOT gate are all low level, and the output terminals of the NOT gate are High level, the triode Q1 is saturated, the emitter of the triode Q2 has no voltage output, the power of the radar antenna is turned off, the standby power consumption is reduced, the output terminal of the resistor R5 is low level, and the photoresistor detection The terminal is set to prohibit the triggering state to ensure that the heat release infrared control circuit, sound and light control and other delay switch control circuits are prohibited from triggering during the day or when the light intensity is sufficient. At night or when the light is low, the photoresistor is in a high-impedance state, the input terminal of the NOT gate is high level, the output terminal of the NAND gate is low level, the triode Q1 is cut off, the emitter of the triode Q2 outputs power, and the power of the radar antenna is turned on , the radar antenna and the non-illumination monitoring circuit enter the working state, and the output end CDS of the resistor R4 is at a high level, allowing the heat release control processing circuit to be triggered.

The basic principles and main features of the present utility model and the advantages of the present utility model have been shown and described above. Those skilled in the art should understand that the utility model is not limited by the above-mentioned embodiments. The above-mentioned embodiments and descriptions only illustrate the principle of the utility model. Without departing from the spirit and scope of the utility model, the utility model The new model also has various changes and improvements, and these changes and improvements all fall within the scope of the claimed utility model. The scope of protection required by the utility model is defined by the appended claims and their equivalents.

Claims (9)

1. A new type of driver for inductive LEDs, characterized in that it includes a purified and regulated power supply capable of suppressing and eliminating harmonic components in the LED constant current source power supply and adjusting the LED constant current source (1) to a constant voltage source unit (2), the purification stabilized power supply unit (2) is connected with a power supply that can turn on or off part of the LED control circuit according to the illuminance and a light control unit (3) that adjusts the non-illuminance monitoring circuit to a dormant state. The purification stabilized power supply unit (2) described above includes a rectification circuit (21) that converts the AC generated by the constant current source (1) into a direct current, and a first-stage power purification circuit ( 22) and the second-stage power purification circuit (23), a voltage stabilizing circuit (24) is connected to the second-stage power purification circuit (23). 2. A novel driver for inductive LEDs according to claim 1, characterized in that the voltage stabilizing circuit (24) includes a primary voltage stabilizing circuit (241) and a secondary voltage stabilizing circuit (242), A third-stage power supply purification circuit (25) is provided between the primary voltage stabilization circuit (241) and the secondary voltage stabilization circuit (242), and the primary voltage stabilization circuit (22) includes a second The triode Q2 connected to the stage power supply purification circuit (23), a resistor R23 is connected between the collector and the base of the triode Q2, and a Zener diode Z2 is connected to the base of the triode Q2. A capacitor C4 is parallel connected to both ends of the voltage diode Z2, and the emitter of the triode Q1 is connected to the third-stage power purification circuit (25). 3. A new type of driver for inductive LEDs according to claim 2, characterized in that a fourth stage is provided between the first stage voltage stabilizing circuit (241) and the third stage power supply purification circuit (25) Power supply purification circuit (26), the fourth-stage power supply thermal purification circuit (26) includes a resistor R31 connected in series between the second-stage power supply purification circuit (23) and the first-stage voltage stabilization circuit (241). A capacitor C41 and a capacitor EC4 are provided between the resistor R3 and the primary voltage stabilizing circuit (241), and a capacitor C5 and a capacitor EC5 are provided between the resistor R31 and the second stage power supply purification circuit (23). 4. A new driver for inductive LEDs according to claim 1, characterized in that said rectification circuit (21) includes a diode D1 connected in series to one end of the LED constant current source (1). The cathode of the diode D1 is connected with a capacitor EC7 in parallel, and the first-stage power purification circuit (22) includes a common-mode inductor L1 connected to the rectifier circuit (21), and the common-mode inductor L1 and the rectifier A capacitor C7 is connected in parallel between the circuits (21), and a capacitor C6 is connected in parallel between the common mode inductor L1 and the second-stage power purification circuit (23). 5. A new type of driver for inductive LEDs according to claim 4, characterized in that the second stage power supply purification circuit (23) includes an inductor L2 or a resistor R3 connected in series to the inductor L1, in the A capacitor C5 and a capacitor EC4 are connected in parallel between the inductance L2 or resistor R3 and the voltage stabilizing circuit (24), and a capacitor C6 and a capacitor EC5. 6. A new type of driver for inductive LEDs according to claim 2, characterized in that the third-stage power purification circuit (25) includes an inductance L3 or a resistor R2, and the inductance L3 or resistor R2 and the first stage A capacitor C3 and a capacitor EC3 are connected in parallel between the voltage stabilizing circuit (241), and a capacitor C21 and a capacitor EC2 are connected in parallel between the inductance L3 or the resistor R2 and the secondary voltage stabilizing circuit (242). 7. A new type of driver for inductive LEDs according to claim 2, characterized in that the secondary voltage stabilizing circuit (242) includes a triode Q1 connected to the tertiary power supply purification circuit (25). The collector and base of the triode Q1 are connected in parallel with a resistor R1, the base of the triode Q1 is connected in series with a Zener diode Z1, and a capacitor C2 is connected in parallel at both ends of the Zener diode Z1. The emitter of the transistor Q2 is connected in parallel with a capacitor C1 and a capacitor EC1. 8. A novel driver for inductive LEDs according to claim 2, characterized in that the secondary voltage stabilizing circuit (242) includes a three-terminal voltage regulator connected to the tertiary power supply purification circuit (25) U1, a capacitor C2 is connected in parallel between the three-terminal voltage regulator U1 and the third-stage power purification circuit (25), and a capacitor C1 and a capacitor EC1 are connected in parallel at the output end of the three-terminal voltage regulator U1. 9. A new type of driver for sensing LEDs according to claim 1, characterized in that the light control unit (3) includes a triode Q1 or a NAND gate (31) or a NOR gate (32). The collector of the triode Q1 or the NAND gate (31) or the NOT gate (32) is connected in series with a resistor R3, the other end of the resistor R3 is connected to the collector of the triode Q2, and the base of the triode Q2 is connected to the triode The collector of Q1 is connected with the NAND gate (31) or the NOT gate (32), the base of the triode Q2 is connected in series with a Zener diode Z1, and the emitter of the triode Q2 is connected with the Zener diode Z1 A capacitor EC1 and a capacitor C2 are connected between them, an antenna power interface and a resistor R5 are connected to the emitter of the triode Q2, and a capacitor C1 is connected in parallel at both ends of the Zener diode Z1, and the capacitor C1 is connected in parallel On the collector and emitter of the transistor Q2, a capacitor EC2 or/and a Zener diode Z2 are connected in parallel between the transistor Q1 or the NAND gate (31), the NOR gate (32) and the transistor Q2.