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Festival flashing colorful light circuit composed of RY169

2017-02-03 14:23  
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Festival flashing colorful light circuit composed of RY169
Festival flashing colorful light circuit is shown in the diagram. ACvoltage isfull-wave bridge rectified by diodes VD1~VD4, voltage regulated by resistors R1, R2 and voltage regulator diode VD5,filtered by capacitor C1 to generate 6V smooth DC voltage, and it is used for the whole circuit. Diode VD6 is used forisolation. IC1 is colorful light control application specific intergrated circuit RY169, andits internal structurehas brightness grade and output speed oscillators, and the oscillator frequency depends on RP1, C2 and RP2, R3, C3. After it gets power, IC1's pin 9~12 output changing pulseto passresistors R5~R8andadd to thyristors VT1~VT4's controlling electrodes, then its conduction angle changes, thereby it generates thestars flashing effect. IC3's pin 2 is the control end oflight chain lighting direction.