NewBuilder
Junior Member level 1
I am trying to use a PMOS as a high side switch. The source voltage is ~14V. I am trying to create a load switch control circuit using an NMOS and resistor so that a small driver can be used for the NMOS to pull the gate of the high side PMOS to ground, turing on the PMOS when necessary. I am having a problem with getting the PMOS to turn on all the way though. I don't really have experience with PMOS devices and cant figure out how to turn it on. I'll attach a schematic. I've tried 1k, 2k, 3k-10k, 100k resistors for the "bias resistor" or whatever it would be called with no luck. I am getting mA compared to 3-5 A.
PS: I know there are drivers available to easily switch a PMOS at 14V, but I plan to be at hundreds of volts in the future.
Thanks in advance
PS: I know there are drivers available to easily switch a PMOS at 14V, but I plan to be at hundreds of volts in the future.
Thanks in advance