Power Mosfet Circuit Diagram. In this example i m using enhancement mode devices. Anyway for low power applications like this it s quite fine.
Mosfet is generally considered as a transistor and employed in both the analog and digital circuits. To use depletion mode mosfets simply reverse the circuits where an n channel depletion mode mosfet will use a variation of the p channel enhancement mode circuit. P i 2 r then a high r ds on channel resistance value would simply result in large amounts of power being dissipated and wasted within the mosfet itself resulting in an excessive temperature rise which if not controlled could result in the mosfet becoming very hot and damaged due to a thermal overload.
In this example i m using enhancement mode devices.
For example an n channel depletion mosfet with a threshold voltage of 3v or 5v the gate of the mosfet needs to be pulled negative 3v or 5v to turn off the device. To use depletion mode mosfets simply reverse the circuits where an n channel depletion mode mosfet will use a variation of the p channel enhancement mode circuit. Mosfet is generally considered as a transistor and employed in both the analog and digital circuits. A 12w led driven by a 12v supply will lead to a drain current of 1a.
