Frequently Asked Questions

Mosfets just like IRF3205 is a voltage triggered transistor. It has 3 pins. Pin 1 is gate and is used as voltage sensor. Pin 2 and 3 is a switch. If the gate sensed +4v or higher, the pin 2 and 3 circuit will close. If the gate detects 0 or negative voltage, the pin 2 and 3 will remain open.