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T

tkhao1986

Hi guys, need some help for the 12V circuit as circled. Basically, i have a pwm output from the microcontroller which will control the ON/OFF of the MOSFET Q2, linked to the 12V battery. As i adjust my potentiometer to control the duty cycle, the voltage between the load doesn't seem to change. If all goes according to plan, as i adjust the pot, the voltage between the load should change too.

And with this circuit, i believe i may also have some problem with the floating voltage at the gate of the MOSFET Q2, correct?

Appreciate if someone can help me thanks!!PWM circuit help pwm - EletriciansForums.net
 

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