Knowing that the magnitude of the current through a JFET can be controlled by both the...
Knowing that the magnitude of the current through a JFET can be controlled by both the potential difference between the drain and the source as well as the gate bias, describe the distinction between a current-controlled vs. a voltage-controlled three-terminal device.
Homework Answers
If output of a device is controlled using input current then it is known as current controlled devices
Examples are BJT(Bipolar junction transistor)
Similarly if the output of device is controlled using input voltage then such devices are known as Voltage controlled devices
Examples are FET(Field effect transistor) mainly available on two types. They are JFET and MOSFET.
The difference between current controlled and voltage controlled devices are shown in following pictures.
BJT act as amplifier in Active region whereas FET act as amplifier in saturation region
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