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What is MOS Capacitor?

What is MOS Capacitor? The metal-oxide-semiconductor MOS capacitor shown in Fig. 13.92 (a) is the heart of the MOSFET. The metal may be aluminium or some other type of metal.…

Small Signal Model of MOSFET

Small Signal Model of MOSFET: If the small bulk resistances of the source and drain are neglected, the Small Signal Model of MOSFET and its equivalent circuit between terminals G…

Depletion Type MOSFET – Construction, Operation and Characteristics

Depletion Type MOSFET - Construction, Operation and Characteristics: As we know already that when the gate is biased negative w.r.t. the source in an N-channel JFET, the depletion-region widths are…

Applications of FETs (Field Effect Transistors)

Applications of FETs (Field Effect Transistors): Applications of FETs - FET has a very high input impedance (100 MΩ in case of JFETs and 104 to 109 MΩ in case of…

Small Signal Model of FET

Small Signal Model of FET: The Small Signal Model of FET which consists of Low Frequency Small Signal Model for FET and High Frequency Model for FET. Low Frequency Model:…

FET Biasing Methods – Fixed Bias, Self Bias, Potential Divider Bias and Current Source Bias

FET Biasing Methods - Fixed Bias, Self Bias, Potential Divider Bias and Current Source Bias: Unlike BJTs, thermal runaway does not occur with FETs. However, the wide differences in maximum…

Self Bias or Potential Divider Bias Circuit

Self Bias or Potential Divider Bias Circuit: This is the most commonly used biasing arrangement. The arrangement of Self Bias or Potential Divider Bias Circuit is shown in Fig. 12.17…

Bias Stability Factor of Transistor

Bias Stability Factor of Transistor: Bias Stability Factor of Transistor - Only the fixing of a suitable operating point is not sufficient but it is also to be ensured that…