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PWM module

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SG3525 PWM frequency adjustable controller module

 
SG3525 PWM frequency adjustable controller module
 

1、onboard SG3525A PWM control chip

 

2、onboard 78 m05 voltage chip, provide reliable reference voltage

 

3、onboard two precision adjustable resistance, R3 control duty ratio, frequency of R4 control

 

4、onboard power light

 

5、working voltage: 8 ~ 12 v

 

6、board size: 30.8 (mm) x18 (mm)