Field Effect Transistors - Learn About Electronics

SEMICONDUCTORS 1 E. COATES 2016 Field Effect Transistors module Junction Field Effect Transistors Field Effect Transistors Although there are lots of confusing names for Field Effect Transistors (FETs) there are basically two main types: 1. The reverse biased PN junction types, the JFET or Junction FET, (also called the JUGFET or Junction Unipolar Gate FET). 2. The insulated gate FET devices (IGFET). All FETs can be called UNIPOLAR devices because the charge carriers that carry the current through the device are all of the same type either holes or electrons, but not both.

Module 4.2 How a JFET Works . The JFET is a Voltage Controlled Transistor. The JFET is a voltage controlled transistor that has two distinct areas of operation depending on the whether the voltage applied to the Source and Drain terminals is greater or less that the transistor's Pinch-Off Voltage . The Pinch Off Voltage

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