The MOSFET in Figure 1 is used as both a heater and a temperature sensor in a thermostatic circuit. Figure 1 Circuit diagram for using a MOSFET as a thermostatic heater. The circuit can be used as a ...
In recent years, MOSFETs have benefited from huge investments in technology and promotion alike, overshadowing bipolar devices to the degree that many designers view bipolars as old technology.