Here’s a simple FET circuit that lets you switch power to, say, a USB port, kind of like a valve that interrupts the current flow. This circuit uses a P-FET – to turn the power on, open the ...

A simple FET radio receiver circuit showing FET biasing ... no standing gate current after an initial surge. A MOSFET power switch can thus be built requiring much less in the way of drive ...

Fuses integrate power switches, digital controllers, current sensing, and all of the other smarts for hot swapping in a ...