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Description

Product Description:
This circuit is a cyclic driving circuit composed of three transistors. Whenever the power is turned on, the three transistors will strive to conduct first, but due to differences in components, only one transistor will conduct first. Assuming that V1 is the first to conduct, the voltage of the V1 collector decreases, causing the left end of capacitor C2 to decrease, approaching 0V. Due to the fact that the voltage at both ends of the capacitor cannot suddenly change, the base of V2 is also pulled to approximately 0V, V2 is cut off, and the collector of V2 is at a high voltage. Therefore, the LED L5-L8 connected to it is illuminated. At this time, the high voltage of V2 increases the base voltage of V3 through the capacitor C3, and V3 will also quickly conduct. Therefore, during this period, the collectors of V1 and V3 are both low voltage, so only L5-L8 is lit, and L1-L4 and L9-L12 are extinguished. But as the power supply charges C2 through resistor R3, the base voltage of V2 gradually increases. When it exceeds 0.7V, V2 changes from a cut-off state to a conduction state, the collector voltage decreases, and L5-L8 goes out. At the same time, the voltage at the collector of V2 decreases through the capacitor C3, causing the base voltage of V3 to also decrease. V3 changes from conduction to cutoff, and the collector voltage of V3 increases. L9-L12 is illuminated. Next, the circuit will cycle according to the process described above. Three sets of 12 light-emitting diodes will be turned on in turn, and these LEDs will be evenly arranged in a circular shape, continuously emitting light, achieving the effect of flow. Changing the capacity of capacitors C1, C2, and C3 can change the cycling speed. The smaller the capacity, the faster the cycling speed. Use 2 No. 5 dry batteries for power supply

Package Type:
All goods will pack into cartons and wrapped full of waterproof tape before shipment.

We can accept customized package to meet different requirements:
1.Every item will separately pack into plastic bag,component,module can be packed in anti static bag.
2.Some fragile products such as the display screen can be packed in bubble bag.
3.Some large machines can be packed in wooden cases.
4.We can label JH code or client's code on package so that customers can check easily after receive goods.

12pcs Red/Green/Yellow/Blue/White LED Circular Lamp Kit

SKU : YXS721 Brand :

Price : $ 0.32~0.43

100 +: $0.32~0.43500 +: $0.32~0.431000 +: $0.32~0.43

style：

Red light
Blue light
Red+Green+Yellow light
Rosin board with random light

Quantity :

- +

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