kathmandu
Full Member level 5
Hello friends, I want to invert the output of an optocoupler using a PMOS transistor. Anyway, I've got an unacceptable long (400ns) turn-off time.
I'm using a 1kohm pull-up resistor at optocoupler output (thus between PMOS gate and source). Is there any circuit (like BJT baker clamp os speed-up capacitor) to enhance the turn-off?
I'm using a 1kohm pull-up resistor at optocoupler output (thus between PMOS gate and source). Is there any circuit (like BJT baker clamp os speed-up capacitor) to enhance the turn-off?