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ITEM NAME:Christmas Heart-shaped LED Flashing Light Circuit DIY Kit Electronic 48MM * 51MM Product Overview Christmas Heart-shaped LED Flashing Light Circuit DIY Kit Electronic 48MM * 51MM 1. Suite Features XSD-18 Cycle Lamp is a kind of lamp which with great appearance of streamlines and color appearance. 18 pieces of Tri-color LED in this suite are divided into three groups and formed a heart-shaped pattern. The transistor oscillates the drive of circuit and let the Tri-color heart-shaped pattern roll in a clockwise direction and start light. The light looks more colorful and dynamic, especially when used at night. It's the best choice for the festive gift. PCB board Dimensions: 48MM * 51MM 2. Principle of Circuits As it shown on below diagram, 18 pieces of LED have been divided into three groups: D1-D6,D7-D12 and D13-D18. All the three transistors try to breakover when the power is on. But only one of them could breakover at the first place due to the difference of the components. If the Q1 goes to breakover firstly, the D1-D6 will start light. As it shown on below diagram, 18 pieces of LED have been divided into three groups: D1-D6,D7-D12 and D13-D18. All the three transistors try to breakover when the power is on. But only one of them could breakover at the first place due to the difference of the components. If the Q1 goes to breakover firstly, the D1-D6 will start light. Because the collector voltage will be reduced which let the left side of C1 reduced to about 0V when the Q1 is on. As it cannot have a sudden change on the voltage of two ends of the capacitance, the base of Q2 has been reduced to 0V too. Then the Q2 is off and the D7-D12 turn off. But at this time, the high voltage of Q2 goes through C2 which make the voltage of Q3 base increased and let the Q3 on immediately. Then the D13-18 turn on. The collectors of both Q1 and Q3 are with low voltage during this period. And the D1-D6 and D13-D18 turn on, while D7-D12 turn off. But the collector voltage w.Find many great new & used options and get the best deals for Christmas Heart-shaped LED Flashing Light Circuit DIY Kit Electronic 48MM * 51MM at the best online prices at Order2india Shopping! Free shipping for many products!
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