CN215010780U - LED lamp control circuit based on comparator integrated circuit - Google Patents
LED lamp control circuit based on comparator integrated circuit Download PDFInfo
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- CN215010780U CN215010780U CN202121431642.9U CN202121431642U CN215010780U CN 215010780 U CN215010780 U CN 215010780U CN 202121431642 U CN202121431642 U CN 202121431642U CN 215010780 U CN215010780 U CN 215010780U
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Abstract
The utility model discloses a LED lamp control circuit based on comparator integrated circuit, including the luminance regulating circuit who comprises comparator integrated circuit, luminance regulating circuit is connected with photochromic regulating circuit, luminance regulating circuit, photochromic regulating circuit are connected with output circuit respectively, output circuit includes white light output circuit and yellow light output circuit, be equipped with the luminance regulation potentiometre on the luminance regulating circuit, be equipped with the light color regulation potentiometre on the photochromic regulating circuit, realize LED lamp through analog circuit and adjust luminance, adopt a comparator integrated circuit as an oscillating circuit, adjust oscillating circuit's PWM duty cycle through the luminance regulation potentiometre, thereby realize adjusting luminance; the voltage is recognized by adjusting different positions of the light color adjusting potentiometer, and the corresponding light color circuit is controlled to be switched on and off through the output circuit according to the corresponding voltage, so that the light color is adjusted, the cost is low, and the adjusting operation is convenient.
Description
[ technical field ]
The utility model relates to a LED lamp control circuit based on comparator integrated circuit.
[ background art ]
The existing dimming scheme applied to the LED lamp adopts a digital signal control chip circuit to dim light, but the MCU adopting the digital signal control chip circuit at the present stage is in shortage and price-rise, so that the color and brightness adjusting circuit production cost of the LED lamp is limited, and meanwhile, the material price is high and rises, so that the cost is greatly increased.
[ contents of utility model ]
The utility model overcomes above-mentioned technique is not enough, provides a LED lamp control circuit based on comparator integrated circuit.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a LED lamp control circuit based on comparator integrated circuit which characterized in that: the LED lamp comprises a brightness adjusting circuit consisting of a comparator integrated circuit, wherein the brightness adjusting circuit is connected with a light color adjusting circuit, the brightness adjusting circuit and the light color adjusting circuit are respectively connected with an output circuit, the output circuit comprises a white light output circuit and a yellow light output circuit, the brightness adjusting circuit is provided with a brightness adjusting potentiometer for adjusting the PWM duty ratio of the comparator integrated circuit so as to realize brightness adjustment of the output circuit, and the light color adjusting circuit is provided with a light color adjusting potentiometer for identifying voltage according to the adjusted position so as to control the output circuit to be corresponding to the on-off of the light color circuit so as to realize color adjustment.
The LED lamp control circuit based on the comparator integrated circuit is characterized in that: the brightness regulating circuit comprises a comparator integrated circuit U1, a pin U1 of the comparator integrated circuit is respectively connected with an output circuit, one end of a resistor R8 and one end of a resistor R7, the other end of the resistor R8 and one end of a resistor R3 are respectively connected with a 5V power supply, the other end of a resistor R3 is respectively connected with a pin U1 of the comparator integrated circuit, one end of a resistor R4 and the output circuit, the other end of a resistor R4 is respectively connected with one end of a resistor R5, one end of a resistor R6 and a pin III of the comparator integrated circuit U1, the other end of a resistor R5 is grounded, the other end of a resistor R6 is connected with the 5V power supply, the other end of a resistor R7 is respectively connected with a pin III of the comparator integrated circuit U1, one end of the resistor R9 and one end of the resistor R10, the other end of the resistor R9 is grounded, the other end of the resistor R10 is connected with the 5V power supply, a pin U1 of the comparator integrated circuit is respectively connected with the 5V power supply, a pin U1, a pin U1 of the comparator integrated circuit, Comparator integrated circuit U1 pin (B) (+)The regulation end of the brightness regulation potentiometer R1 is connected, one end of the brightness regulation potentiometer R1 is connected with a 5V power supply through a resistor R2, the other end of the brightness regulation potentiometer R1 is grounded, a pin nini of a comparator integrated circuit U1 is respectively connected with one end of a resistor R11, one end of a resistor R15 and one end of a resistor R12, the other end of a resistor R11 is grounded, the other end of a resistor R15 is connected with the 5V power supply, and the other end of the resistor R12 is respectively connected with a pin of a comparator integrated circuit U1
Output circuit connection, comparator IC pin R in U1, comparator IC pin U1
Comparator integrated circuit U1 pin
Respectively connected with the light color regulating circuit, and a comparator integrated circuit U1 pin
And (4) grounding.
The LED lamp control circuit based on the comparator integrated circuit is characterized in that: the light color adjusting circuit comprises a triode P1, an emitter of a triode P1 is connected with a 5V power supply, a collector of a triode P1 is respectively connected with an output circuit and one end of a resistor R22, the other end of the resistor R22 is grounded, a base of a triode P1 is respectively connected with an adjusting end of a light color adjusting potentiometer R18, one end of a resistor R13, one end of a resistor R14 and a brightness adjusting circuit through a resistor R20, one end of a light color adjusting potentiometer R18 is connected with an anode end of a diode D1, the other end of the light color adjusting potentiometer R18 is connected with a cathode end of a diode D2, a cathode end of a diode D1 and an anode end of a diode D2 are respectively connected with one end of a resistor R19, the other end of a resistor R19 is respectively connected with the brightness adjusting circuit and one end of a capacitor C56, the other end of a capacitor C3 is grounded, the other end of the resistor R13 is connected with the 5V power supply, the other end of the resistor R14 is respectively connected with the brightness adjusting circuit, one end of a resistor R16 and one end of a resistor R17, the other end of the resistor R17 is grounded.
The LED lamp control circuit based on the comparator integrated circuit is characterized in that: the output circuit comprises a white light control NMOS tube NM1 and a yellow light control NMOS tube NM2, the drain end of the white light control NMOS tube NM1 is connected with a white light LED lamp, the source end of the white light control NMOS tube NM1 is grounded, the grid end of the white light control NMOS tube NM1 is respectively connected with one end of a resistor R25, a brightness adjusting circuit and a collector of a triode N1, the other end of the resistor R25 is connected with the light color adjusting circuit, the emitter of a triode N2 is grounded, the collector of a triode N1 is connected with the brightness adjusting circuit through a resistor R23, the drain end of the yellow light control NMOS tube NM2 is connected with the yellow light LED lamp, the source end of the yellow light control NMOS tube NM2 and the emitter of a triode N2 are respectively grounded, the yellow light control NMOS tube NM2 is respectively connected with the collector of the triode N2 and one end of the resistor R26, the other end of the resistor R26 is connected with the grid color adjusting circuit, and the base of the triode N2 is connected with the brightness adjusting circuit through a resistor R24.
The LED lamp control circuit based on the comparator integrated circuit is characterized in that: the brightness regulating circuit includes comparator IC U1, comparator IC U1 pin connected to the output circuit and one end of resistor R4, resistor R4 pin connected to the comparator IC U1 pin, resistor R3 pin and resistor R5 pin, resistor R3 pin connected to 5V power source, resistor R5 pin and comparator IC U1 pin grounded, comparator IC U1 pin connected to the brightness regulating potentiometer R1 regulating end, light color regulating circuit and comparator IC U1 pin, comparator IC U1 pin connected to resistor R6 pin, resistor R8 pin and resistor R7 pin, resistor R6 pin, resistor R8 pin connected to 5V power source, resistor R7 pin connected to comparator IC U1 pin and output circuit pin, and comparator IC U1 pin connected to 5V power source, one end of the resistor R12 and one end of the resistor R15 are respectively connected with the light color adjusting circuit, the other end of the resistor R12 is grounded, and the other end of the resistor R15 is connected with a 5V power supply.
The LED lamp control circuit based on the comparator integrated circuit is characterized in that: the photochromic adjusting circuit comprises a comparator integrated circuit U2, a pin U2 of the comparator integrated circuit is respectively connected with one end of a resistor R13, one end of a resistor R10, an adjusting end of a lamp color adjusting potentiometer R16 and an output circuit, the other end of the resistor R13 and a pin U2 of the comparator integrated circuit are respectively connected with a 5V power supply, the other end of the resistor R10 is respectively connected with a pin U2 of the comparator integrated circuit, one end of a resistor R9 and one end of a resistor R11, the other end of the resistor R9 is connected with the 5V power supply, the other end of the resistor R11 and a pin U2 of the comparator integrated circuit are respectively grounded, a pin U2 of the comparator integrated circuit is respectively connected with one end of a brightness adjusting circuit and a pin R14, the other end of the resistor R14 is respectively connected with a pin U2 of the comparator integrated circuit and the output circuit, and a pin U2 of the comparator integrated circuit is connected with the brightness adjusting circuit.
The LED lamp control circuit based on the comparator integrated circuit is characterized in that: the output circuit comprises a white light control NMOS tube NM1 and a yellow light control NMOS tube NM2, the drain end of the white light control NMOS tube NM1 is connected with the white light LED lamp, the source end of the white light control NMOS tube NM1 is grounded, the grid end of the white light control NMOS tube NM1 is respectively connected with one end of a resistor R21, the light color electricity saving end and a collector of a triode N1, the emitter of the triode N1 is grounded, the base of the triode N1 is respectively connected with one end of a resistor R20 and a brightness adjusting circuit, the other end of the resistor R20 is connected with a 5V power supply, the other end of the resistor R21 is respectively connected with one end of the resistor R22, one end of a resistor R19 and the collector of a triode P1, the other end of the resistor R19 is grounded, the emitter of the triode P1 is connected with the 5V power supply, the base of the triode P1 is connected with the light color adjusting circuit through a resistor R18, the other end of the resistor R22 is respectively connected with the grid end of the yellow light control NMOS tube NM2 and the collector of the triode N2, the yellow light control NMOS tube NM2 is connected with the white light control NMOS lamp NM2, the source end of the yellow light control NMOS tube NM2 is grounded, the emitter of the triode N2 is grounded, the base of the triode N2 is connected with the brightness adjusting circuit and one end of the resistor R23 respectively, and the other end of the resistor R23 is connected with the 5V power supply.
The utility model has the advantages that:
the utility model realizes the dimming of the LED lamp through the analog circuit, adopts a comparator integrated circuit as an oscillating circuit, and adjusts the PWM duty ratio of the oscillating circuit through the brightness adjusting potentiometer, thereby realizing the brightness adjustment; the voltage is recognized by adjusting different positions of the light color adjusting potentiometer, and the corresponding light color circuit is controlled to be switched on and off through the output circuit according to the corresponding voltage, so that the light color is adjusted, the cost is low, and the adjusting operation is convenient.
[ description of the drawings ]
FIG. 1 is a schematic diagram of the present invention;
fig. 2 is a schematic circuit diagram according to an embodiment of the present invention;
fig. 3 is a schematic circuit diagram of a second embodiment of the present invention.
[ detailed description of the invention ]
The following description is further detailed with reference to the accompanying drawings and embodiments of the present invention:
as shown in fig. 1, an LED lamp control circuit based on a comparator integrated circuit includes a brightness adjusting circuit 1 composed of a comparator integrated circuit, the brightness adjusting circuit 1 is connected with a light color adjusting circuit 2, the brightness adjusting circuit 1 and the light color adjusting circuit 2 are respectively connected with an output circuit 3, the output circuit 3 includes a white light output circuit and a yellow light output circuit, the brightness adjusting circuit 1 is provided with a brightness adjusting potentiometer for adjusting a PWM duty ratio of the comparator integrated circuit to realize brightness adjustment of the output circuit 3, and the light color adjusting circuit 2 is provided with a light color adjusting potentiometer for recognizing a voltage according to an adjusted position to control the output circuit 3 to be turned on or off corresponding to the light color circuit to realize color adjustment.
A comparator integrated circuit is used as an oscillating circuit, and the PWM duty ratio of the oscillating circuit is adjusted by rotating an external rotating switch of a brightness adjusting potentiometer when the brightness is adjusted, so that the brightness of the output circuit 3 is adjusted, and the brightness adjusting function is realized; when the lamp color is adjusted, the external rotary switch of the lamp color adjusting potentiometer is rotated, so that the position of the adjusting end of the lamp color adjusting potentiometer is adjusted, different positions of the adjusting end can identify different voltages, and then the corresponding light color circuit is controlled to be switched on and off through the output circuit 3 according to the corresponding voltages, so that the function of adjusting the lamp color is realized.
The comparator integrated circuits in the present application can be various comparator integrated circuits, and the comparator integrated circuits with models LM339 and LM393 are used as the embodiments in the present application, but the circuit structure in the present application is not limited to the comparators with models LM339 and LM 393.
The model of the comparator integrated circuit according to the first embodiment of the present disclosure is LM339, as shown in fig. 2, specifically, the circuit structure of the brightness adjusting circuit 1 includes a comparator integrated circuit U1, pins (i) of the comparator integrated circuit U1 are connected to the output circuit 3, one end of a resistor R8, one end of a resistor R7, the other end of the resistor R8, one end of a resistor R3 are connected to the 5V power supply, the other end of the resistor R3 is connected to the pin (i) of the comparator integrated circuit U1, one end of a resistor R4, and the output circuit 3, the other end of the resistor R4 is connected to one end of a resistor R5, one end of a resistor R6, one end of a comparator integrated circuit U1, the other end of a resistor R5 is grounded, the other end of a resistor R6 is connected to the 5V power supply, the other end of the resistor R7 is connected to the pin (i) of the comparator integrated circuit U1, one end of the resistor R9, one end of the resistor R10 is grounded, the other end of the resistor R9 is connected to the 5V power supply, pin III of comparator IC U1 is connected with 5V power supply, pin IV of comparator IC U1, pin IV of comparator IC U1 and pin III of comparator IC U1 are connected with regulating end of brightness regulating potentiometer R1, one end of brightness regulating potentiometer R1 is connected with 5V power supply through resistor R2, the other end of brightness regulating potentiometer R1 is grounded, pin W of comparator IC U1 is connected with one end of resistor R11, one end of resistor R15 and one end of resistor R12, the other end of resistor R11 is grounded, the other end of resistor R15 is connected with 5V power supply, the other end of resistor R12 is connected with pin U1 of comparator IC
Output circuit 3, comparator IC U1 pin R, comparator IC U1 pin
Comparator integrated circuit U1 pin
Respectively connected with the light color regulating circuit 2 and a comparator integrated circuit U1 pin
And (4) grounding.
As shown in FIG. 2, the circuit structure of the light color adjusting circuit 2 includes a transistor P1, an emitter of the transistor P1 is connected to a 5V power supply, a collector of the transistor P1 is connected to the output circuit 3 and one end of a resistor R22, the other end of the resistor R22 is grounded, a base of the transistor P1 is connected to an adjusting end of a light color adjusting potentiometer R18, one end of the resistor R13, one end of a resistor R14 and the brightness adjusting circuit 1 through a resistor R20, one end of the light color adjusting potentiometer R18 is connected to a positive end of a diode D1, the other end of the light color adjusting potentiometer R18 is connected to a negative end of a diode D2, a negative end of the diode D1 and a positive end of the diode D2 are connected to one end of a resistor R19, the other end of the resistor R19 is connected to the brightness adjusting circuit 1 and one end of a capacitor C3, the other end of the capacitor C3 is grounded, the other end of the resistor R13 is connected to the 5V power supply, and the other end of the resistor R14 is connected to the brightness adjusting circuit 1 and one end of the brightness adjusting circuit R16 and the brightness adjusting circuit R16, One end of the resistor R17 is connected, the other end of the resistor R16 is connected with a 5V power supply, and the other end of the resistor R17 is grounded.
As shown in fig. 2, the circuit structure of the output circuit 3 includes a white light control NMOS tube NM1 and a yellow light control NMOS tube NM2, the drain terminal of the white light control NMOS tube NM1 is connected to the white light LED lamp, the source terminal of the white light control NMOS tube NM1 is grounded, the gate terminal of the white light control NMOS tube NM1 is connected to one end of a resistor R25, a brightness adjusting circuit 1 and a collector of a transistor N1, the other end of the resistor R25 is connected to the light color adjusting circuit 2, the emitter of the transistor N2 is grounded, the collector of the transistor N1 is connected to the brightness adjusting circuit 1 through the resistor R23, the drain terminal of the yellow light control NMOS tube NM2 is connected to the yellow light LED lamp, the source terminal of the yellow light control NMOS tube NM2, the emitting electrodes of the triode N2 are respectively grounded, the grid end of the yellow light control NMOS tube NM2 is respectively connected with the collector electrode of the triode N2 and one end of the resistor R26, the other end of the resistor R26 is connected with the light color adjusting circuit 2, and the base electrode of the triode N2 is connected with the brightness adjusting circuit 1 through the resistor R24.
The comparator integrated circuit of the second embodiment is of the type LM393, and as shown in fig. 3, specifically, the circuit structure of the brightness adjusting circuit 1 includes a comparator integrated circuit U1, a pin U1 of the comparator integrated circuit is connected to the output circuit 3 and one end of a resistor R4, the other end of the resistor R4 is connected to a pin U1 of the comparator integrated circuit, one end of a resistor R3 and one end of a resistor R5, the other end of the resistor R3 is connected to the 5V power supply, the other end of the resistor R5 and a pin U1 of the comparator integrated circuit are grounded, a pin U1 of the comparator integrated circuit is connected to a pin c of the brightness adjusting potentiometer R1, the light color adjusting circuit 2 and the comparator integrated circuit U1, a pin (a) of the comparator integrated circuit U1 is connected to one end of a resistor R6, one end of the resistor R8 and one end of the resistor R7, the other end of the resistor R6 is grounded, and the other end of the resistor R8 is connected to the 5V power supply, the other end of the resistor R7 is respectively connected with a pin (b) of a comparator integrated circuit U1 and the output circuit 3, a pin (b) of a comparator integrated circuit U1 is connected with a 5V power supply, one end of the resistor R12 and one end of the resistor R15 are respectively connected with the photochromic adjusting circuit 2, the other end of the resistor R12 is grounded, and the other end of the resistor R15 is connected with the 5V power supply.
As shown in fig. 3, the circuit structure of the light color adjusting circuit 2 includes a comparator integrated circuit U2, a pin (R) of the comparator integrated circuit U2 is connected to one end of a resistor R13, one end of a resistor R10, an adjusting end of a light color adjusting potentiometer R16, and the output circuit 3, another end of the resistor R13 and a pin (R) of a comparator integrated circuit U2 are connected to a 5V power supply, another end of the resistor R10 is connected to a pin (R) of the comparator integrated circuit U2, one end of a resistor R9 and one end of a resistor R11 are connected, the other end of a resistor R9 is connected with a 5V power supply, the other end of the resistor R11 and a pin (four) of a comparator integrated circuit U2 are respectively grounded, a pin (five) of a comparator integrated circuit U2 is respectively connected with the brightness adjusting circuit 1 and one end of a resistor R14, the other end of the resistor R14 is respectively connected with a pin (seven) of the comparator integrated circuit U2 and an output circuit 3, and a pin (six) of a comparator integrated circuit U2 is connected with the brightness adjusting circuit 1.
As shown in fig. 3, the circuit structure of the output circuit 3 includes a white light control NMOS NM1 and a yellow light control NMOS NM2, the drain terminal of the white light control NMOS NM1 is connected to the white LED lamp, the source terminal of the white light control NMOS NM1 is grounded, the gate terminal of the white light control NMOS NM1 is connected to one end of a resistor R21, a light color adjusting circuit 2 and the collector of a transistor N1, the emitter of the transistor N1 is grounded, the base of the transistor N1 is connected to one end of a resistor R20 and the brightness adjusting circuit 1, the other end of the resistor R20 is connected to a 5V power supply, the other end of the resistor R21 is connected to one end of a resistor R22, one end of a resistor R19 and the collector of a transistor P1, the other end of the resistor R19 is grounded, the emitter of a transistor P1 is connected to a 5V power supply, the base of the transistor P1 is connected to the light color adjusting circuit 2 through a resistor R18, the other end of a resistor R22 is connected to a yellow light control NMOS 2 and the collector of a transistor N2, the drain end of the yellow light control NMOS tube NM2 is connected with the white light LED lamp, the source end of the yellow light control NMOS tube NM2 is grounded, the emitting electrode of the triode N2 is grounded, the base electrode of the triode N2 is connected with the brightness adjusting circuit 1 and one end of the resistor R23 respectively, and the other end of the resistor R23 is connected with the 5V power supply.
Claims (7)
1. The utility model provides a LED lamp control circuit based on comparator integrated circuit which characterized in that: the LED lamp comprises a brightness adjusting circuit (1) composed of comparator integrated circuits, wherein the brightness adjusting circuit (1) is connected with a photochromic adjusting circuit (2), the brightness adjusting circuit (1) and the photochromic adjusting circuit (2) are respectively connected with an output circuit (3), the output circuit (3) comprises a white light output circuit and a yellow light output circuit, a brightness adjusting potentiometer for adjusting the PWM duty ratio of the comparator integrated circuits is arranged on the brightness adjusting circuit (1) so as to realize brightness adjustment of the output circuit (3), and a lamp color adjusting potentiometer for controlling the output circuit (3) to be switched on and off corresponding to the lamp color circuit according to the adjusted position identification voltage is arranged on the photochromic adjusting circuit (2) so as to realize color adjustment.
2. The comparator integrated circuit based LED lamp control circuit of claim 1, wherein: the brightness adjusting circuit (1) comprises a comparator integrated circuit U1, a pin I of the comparator integrated circuit U1 is respectively connected with an output circuit (3), one end of a resistor R8 and one end of a resistor R7, the other end of the resistor R8 and one end of a resistor R3 are respectively connected with a 5V power supply, the other end of the resistor R3 is respectively connected with a pin II of the comparator integrated circuit U1, one end of a resistor R4 and the output circuit (3), the other end of the resistor R4 is respectively connected with one end of a resistor R5, one end of a resistor R6 and a pin III of the comparator integrated circuit U1, the other end of the resistor R5 is grounded, the other end of the resistor R6 is connected with the 5V power supply, the other end of the resistor R7 is respectively connected with a pin III of the comparator integrated circuit U1, one end of the resistor R9 and one end of the resistor R10, the other end of the resistor R9 is grounded, the other end of the resistor R10 is connected with the 5V power supply, and the pin III of the comparator integrated circuit U1③ is respectively connected with a 5V power supply, a pin of a comparator integrated circuit U1, a pin of a comparator integrated circuit U1, a pin of a comparator integrated circuit U1 are respectively connected with an adjusting end of a brightness adjusting potentiometer R1, one end of the brightness adjusting potentiometer R1 is connected with the 5V power supply through a resistor R2, the other end of the brightness adjusting potentiometer R1 is grounded, the pin of the comparator integrated circuit U1 is respectively connected with one end of a resistor R11, one end of a resistor R15 and one end of a resistor R12, the other end of the resistor R11 is grounded, the other end of the resistor R15 is connected with the 5V power supply, the other end of the resistor R12 is respectively connected with a pin of a comparator integrated circuit U1
Output circuit (3) connection, comparator IC pin R at U1, comparator IC pin U1
Comparator integrated circuit U1 pin
Are respectively connected with a photochromic regulating circuit (2) and a comparator integrated circuit U1 pin
And (4) grounding.
3. The comparator integrated circuit based LED lamp control circuit of claim 2, wherein: the light color adjusting circuit (2) comprises a triode P1, an emitter of a triode P1 is connected with a 5V power supply, a collector of a triode P1 is respectively connected with an output circuit (3) and one end of a resistor R22, the other end of the resistor R22 is grounded, a base of a triode P1 is respectively connected with an adjusting end of a light color adjusting potentiometer R18, one end of a resistor R13, one end of a resistor R14 and the brightness adjusting circuit (1) through a resistor R20, one end of the light color adjusting potentiometer R18 is connected with an anode end of a diode D1, the other end of the light color adjusting potentiometer R18 is connected with a cathode end of a diode D2, a cathode end of a diode D1 and an anode end of a diode D2 are respectively connected with one end of a resistor R19, the other end of the resistor R19 is respectively connected with a brightness adjusting circuit (1) and one end of a capacitor C3, the other end of a capacitor C3 is grounded, the other end of the resistor R13 is connected with a 5V power supply, the other end of the resistor R14 is respectively connected with a brightness adjusting circuit (1 and one end of a resistor R16, One end of the resistor R17 is connected, the other end of the resistor R16 is connected with a 5V power supply, and the other end of the resistor R17 is grounded.
4. The comparator integrated circuit based LED lamp control circuit of claim 2, wherein: the output circuit (3) comprises a white light control NMOS tube NM1 and a yellow light control NMOS tube NM2, the drain end of the white light control NMOS tube NM1 is connected with the white light LED lamp, the source end of the white light control NMOS tube NM1 is grounded, the grid end of the white light control NMOS tube NM1 is respectively connected with one end of a resistor R25, a brightness adjusting circuit (1) and a triode N1 collector, the other end of the resistor R25 is connected with a light color adjusting circuit (2), the emitter of the triode N2 is grounded, the collector of the triode N1 is connected with the brightness adjusting circuit (1) through the resistor R23, the drain end of the yellow light control NMOS tube NM2 is connected with the yellow light LED lamp, the source end of the yellow light control NMOS tube NM2, the emitting electrodes of the triode N2 are respectively grounded, the grid end of the yellow light control NMOS tube NM2 is respectively connected with the collector electrode of the triode N2 and one end of the resistor R26, the other end of the resistor R26 is connected with the light color adjusting circuit (2), and the base electrode of the triode N2 is connected with the brightness adjusting circuit (1) through the resistor R24.
5. The comparator integrated circuit based LED lamp control circuit of claim 1, wherein: the brightness adjusting circuit (1) comprises a comparator integrated circuit U1, a pin of a comparator integrated circuit U1 is respectively connected with an output circuit (3) and one end of a resistor R4, the other end of the resistor R4 is respectively connected with a pin of a comparator integrated circuit U1, one end of a resistor R3 and one end of a resistor R5, the other end of the resistor R3 is connected with a 5V power supply, the other end of the resistor R5 and a pin of a comparator integrated circuit U1 are respectively grounded, a pin of the comparator integrated circuit U1 is respectively connected with a brightness adjusting potentiometer R1 adjusting end, a light color adjusting circuit (2) and a pin of a comparator integrated circuit U1, a pin of a comparator integrated circuit U1 is respectively connected with one end of the resistor R6, one end of a resistor R8 and one end of the resistor R7, the other end of the resistor R6 is grounded, the other end of the resistor R8 is connected with the 5V power supply, the other end of a resistor R7 is respectively connected with a pin U1 and a pin (3) of the comparator integrated circuit, the comparator integrated circuit U1 pin (B) is connected with the 5V power supply, one end of the resistor R12 and one end of the resistor R15 are respectively connected with the photochromic adjusting circuit (2), the other end of the resistor R12 is grounded, and the other end of the resistor R15 is connected with the 5V power supply.
6. The comparator integrated circuit based LED lamp control circuit of claim 5, wherein: the light color regulating circuit (2) comprises a comparator integrated circuit U2, a pin phi of the comparator integrated circuit U2 is respectively connected with one end of a resistor R13, one end of a resistor R10, a regulating end of a light color regulating potentiometer R16 and an output circuit (3), the other end of the resistor R13 and a pin phi of the comparator integrated circuit U2 are respectively connected with a 5V power supply, the other end of the resistor R10 is respectively connected with a pin phi of the comparator integrated circuit U2, one end of a resistor R9 and one end of a resistor R11, the other end of the resistor R9 is connected with the 5V power supply, the other end of the resistor R11 and a pin phi of the comparator integrated circuit U2 are respectively grounded, a pin phi of the comparator integrated circuit U2 is respectively connected with one end of a brightness regulating circuit (1) and one end of a resistor R14, the other end of the resistor R14 is respectively connected with a pin phi of the comparator integrated circuit U2 and the output circuit (3), and a pin U2 of the comparator integrated circuit is connected with the brightness regulating circuit (1).
7. The comparator integrated circuit based LED lamp control circuit of claim 5, wherein: the output circuit (3) comprises a white light control NMOS tube NM1 and a yellow light control NMOS tube NM2, the drain end of the white light control NMOS tube NM1 is connected with the white light LED lamp, the source end of the white light control NMOS tube NM1 is grounded, the grid end of the white light control NMOS tube NM1 is respectively connected with one end of a resistor R21, a light color adjusting circuit (2) and a collector of a triode N1, the emitter of a triode N63 1 is grounded, the base of the triode N1 is respectively connected with one end of a resistor R20 and a brightness adjusting circuit (1), the other end of the resistor R20 is connected with a 5V power supply, the other end of a resistor R21 is respectively connected with one end of a resistor R22, one end of a resistor R19 and the collector of a triode P1, the other end of the resistor R19 is grounded, the emitter of the triode P1 is connected with the 5V power supply, the base of a triode P1 is connected with the light color adjusting circuit (2) through a resistor R18, the other end of the resistor R22 is respectively connected with the grid end of a yellow light control NMOS tube NM2 and the collector of a triode N2, the yellow light control NMOS tube NM2 is connected with the white light control NMOS lamp, the source end of the yellow light control NMOS tube NM2 is grounded, the emitter of the triode N2 is grounded, the base of the triode N2 is respectively connected with the brightness adjusting circuit (1) and one end of the resistor R23, and the other end of the resistor R23 is connected with the 5V power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121431642.9U CN215010780U (en) | 2021-06-26 | 2021-06-26 | LED lamp control circuit based on comparator integrated circuit |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121431642.9U CN215010780U (en) | 2021-06-26 | 2021-06-26 | LED lamp control circuit based on comparator integrated circuit |
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| CN215010780U true CN215010780U (en) | 2021-12-03 |
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| CN202121431642.9U Active CN215010780U (en) | 2021-06-26 | 2021-06-26 | LED lamp control circuit based on comparator integrated circuit |
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| Country | Link |
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| CN (1) | CN215010780U (en) |
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2021
- 2021-06-26 CN CN202121431642.9U patent/CN215010780U/en active Active
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