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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…

DC Load Line and Bias Point of FET Circuit.

DC Load Line and Bias Point of FET Circuit: The DC Load Line and Bias Point for a FET circuit is drawn upon the output characteristics of the device in…

Parameters of JFET: JFET has certain parameters which determine the performance. Such Parameters of JFET are (i) ac drain resistance, (ii) transconductance, (iii) amplification factor, and (iv) dc drain resistance,…

JFET as an Amplifier

JFET as an Amplifier: One of the applications of JFET as an Amplifier of input signal. In FET the weak signal is applied between gate and source and an amplified…

JFET Temperature Effects

JFET Temperature Effects: The JFET, like other solid state devices, is subject to the JFET Temperature Effects. However, it is possible to bias the JFET such that it will exhibit…

FET Configurations

FET Configurations: FETs (JFETs and MOSFETs) have three configurations just as BJTs have. The three FET Configurations—the common gate, common source, and common drain configuration have been given in Fig.…

Advantages and Disadvantages of JFET

Advantages and Disadvantages of JFET: Junction field-effect transistors combine several merits of both conventional (or bipolar) transistors and vacuum tubes. Some of these advantages and disadvantages of JFET are enumerated…