Hey everyone,
I'm testing an N-channel MOSFET to be used for the post-PWM part of a DC-Geared Motor speed control.
Before I try the PWM (which will be simply implemented by mcu ) I'm testing this MOSFET by connecting a potentiometer to manipulate voltage intended for opening the
gate of the MOSFET. Thing is, the motor won't turn unless I touch the MOSFET (??) so apparently something's missing; so what's wrong?
btw the MOSFET is IRF620 (enhancement mode Power MOSFET) , potentiometer is 1kΩ, the voltage applied to the pot is 5v.
thx in advance!
regards
I'm testing an N-channel MOSFET to be used for the post-PWM part of a DC-Geared Motor speed control.
Before I try the PWM (which will be simply implemented by mcu ) I'm testing this MOSFET by connecting a potentiometer to manipulate voltage intended for opening the
gate of the MOSFET. Thing is, the motor won't turn unless I touch the MOSFET (??) so apparently something's missing; so what's wrong?
btw the MOSFET is IRF620 (enhancement mode Power MOSFET) , potentiometer is 1kΩ, the voltage applied to the pot is 5v.
thx in advance!
regards