The pass transistor is most commonly a MOSFET (either. N-channel or P-channel) that passes the voltage supply to. Then we can define the cut-off region or “OFF mode” when using an e-MOSFET as a switch as being, gate voltage, VGS VTH and ID = 0. Yet, despite its shortcomings, the p-channel MOSFET performs a vital “high-side” switch task that the n-channel simply cannot equal. Quick explanation on using only positive voltages in this p-channel. In this case, use a P-Channel MOSFET to turn the relay on from the . How to design-use basic P-channel MOSFET switch.

In this project, we will go over how to connect an P-Channel MOSFET to a circuit for it to function as an electronic switch. The transistor shown is a P-channel MOSFET acting as a high-side switch. More commonly, an N-channel MOSFET low-side switch is use . To use a MOSFET as a switch, you have to have its gate voltage (Vgs) higher.

P-Channel – The source is connected to the power rail (Vcc). Choosing a P-channel MOSFET for an application. P-channel MOSFETs are often used for load switching.

The simplicity of P-channel solutions on the high.