1results about How to "Simple circuit" patented technology

The utility model discloses a kind of LED multicolor display control circuit, including LED1 chip, power VCC1, power VCC2, triode Q1, triode Q2 and triode Q3, power VCC1 is connected with the anode of the first light-emitting diode of triode Q1's collector, triode Q2's base and LED1 chip respectively, power VCC2 is connected with the base of triode Q1, triode Q2's collector and triode Q3 respectively;The anode of the second light-emitting diode of triode Q1's emitter is connected with LED1 chip, the cathode of second light-emitting diode is grounded, the anode of the third light-emitting diode of triode Q2's emitter is connected with LED1 chip, the cathode of third light-emitting diode is grounded, the cathode of the first light-emitting diode of triode Q3's collector is connected with LED1 chip, the emitter of triode Q3 is grounded;The utility model has the advantages of reducing cost, reducing device, simplifying circuit and improving stability.