Common Source JFET Characteristics

 
  • BIAS
  • CHARACTERISTICS
  • PHASE
  • VOLTAGE DIVIDER
  • DC SOURCE
  • DIVIDER
  • AMMETER
  • JFET
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Overview

DC biasing of an FET is done to produce the required gate-to-source voltage (VGS) to get the desired value of drain current (¬ID). Common-source configuration offers high input impedance, low output impedance, high voltage gain and the output voltage is 180? out-of-phase with the input voltage. The commonly used common-source biasing configurations include fixed-bias configuration, self-bias configuration and voltage-divider configuration. In this experiment we’ll use the fixed-bias configuration. The fixed-bias configuration is not used much as the wide differences in the minimum and maximum values of the JFET parameters make drain current levels unpredictable with simple fixed-bias circuits.

Circuit info

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Created on: 09 Feb 2013
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