Circuits

Transistor – Common Collector

  • Also known as Emitter Follower;  emitter signal voltage has same value as base signal voltage
  • Note: +V is at signal ground due to decoupling capacitors (not shown)
  • Input impedance: High (though note R1/ R2 are in parallel with input)
  • Output impedance: Low
  • Current Gain : High
  • Voltage Gain : ∼1