Common-Emitter Amplifier

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Common-Emitter Amplifier

Circuit Description

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The circuit is a common-emitter (CE) amplifier with voltage divider bias and partially bypassed emitter resistance. The purpose of the emitter resistance is to improve the bias stability but it decreases the gain of the common-emitter amplifier. With the emitter resistance shunted with a capacitor, bias stability is retained while avoiding reduction in AC gain. Partial bypassing allows AC feedback through the unbypassed portion of the emitter resistance. The overall gain of the circuit is approximately 5. Switch to DC Op to see the quiescent voltages and currents.

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Creator

mayaelena

39 Circuits

Date Created

3 years, 11 months ago

Last Modified

3 years, 11 months ago

Tags

  • common emitter
  • transistor amplifiers
  • bjt amplifiers
  • ce configuration
  • ce
  • ce amplifier
  • common-emitter configuration
  • common-emitter amplifier
  • bjt ac amplifiers
  • emitter resistor

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