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SG3525 PWM Controller Module Frequency Adjustable C1B1
Description:
- Onboard SG3525A PWM control chip
- Onboard 78M05 stabilization chip, providing reliable reference voltage
- Onboard two precised adjustable resistor, R3 controls duty cycle, R4 controls frequency
- Onboard power supply indicator light
- Working voltage; 8-12V
- Size: 30.8*18mm