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1.Packing List:
555 pulse width control controller kit, electronic assembly kit, can be used for school electronic production training, electronic enthusiasts assembly use.
Principle: D1 is used to prevent the power supply from reversing the NE555, D2, C1, R1, R2, W1, IC1 pulse width adjustable pulse generator, adjust the potentiometer W1 U1 NE555 output pulse frequency and pulse width change The The output pulse is driven by R3, R4, R5, Q1, Q2 to adjust the speed of the motor. D3, C5 to eliminate the motor generated by the back electromotive force to protect the transistor. C2, C4 for power supply filtering, C3 for the stability of the reference voltage to eliminate interference.
Arduino Kit, Electronic Module
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