Hi!
I have two P channel MOSFETs, one to a 6 volt source and one to a 4 volt source. I want to be able to select which voltage is supplied to the load.
However, in my circuit, I am pushing current from the 6 volt supply back through the 4 volt supplies controlling MOSFET, even when the MOSFET is fully off.
In other words, on my board, if I have just the first MOSFET I can turn on and off the 6 volt supply to the load.
If I have just the second MOSFET I can turn on and off the 4 volt supply to the load.
If both MOSFETs are installed simultaneously, the 6 volt supply starts working extra hard (apparently sending current to the 4 volt supply) even though the 4 volt MOSFET is OFF.
I don't know what I'm doing wrong!!!
Please help me!
I have two P channel MOSFETs, one to a 6 volt source and one to a 4 volt source. I want to be able to select which voltage is supplied to the load.
However, in my circuit, I am pushing current from the 6 volt supply back through the 4 volt supplies controlling MOSFET, even when the MOSFET is fully off.
In other words, on my board, if I have just the first MOSFET I can turn on and off the 6 volt supply to the load.
If I have just the second MOSFET I can turn on and off the 4 volt supply to the load.
If both MOSFETs are installed simultaneously, the 6 volt supply starts working extra hard (apparently sending current to the 4 volt supply) even though the 4 volt MOSFET is OFF.
I don't know what I'm doing wrong!!!
Please help me!