Description
1. SG3525A PWM control chip
2. 78M05 regulator chip, providing a reliable voltage for reference
3. two precision adjustable resistors, R3 controls the duty cycle, R4 control frequency
4. onboard power indicator
5. the working voltage: 8 ~ 12V
6. board size: 30.8 (mm) x18 (mm)
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#SG3525 #PWM #Controller #Module