Propeller Head Plaza

Posted by rick_m (A) on May 04, 2008 at 16:57:18

In Reply to: RE: An example of class AB bipolar power amps posted by andy_c on May 04, 2008 at 09:55:53

"Another reason this is important is because bipolar class AB output stages have an optimum bias current where their distortion is minimum. Increase or decrease the current from its optimum, and the distortion becomes greater than its optimum value."

I wasn't aware of that. I understand the concerns about dissipation and thermal runaway, but why would running a class AB stage further into class A increase distortion?

Rick

• RE: Optimum bias point? - andy_c 17:33:34 05/04/08 (4)
  • RE: Optimum bias point? - rick_m 20:13:38 05/04/08 (3)
    • Yet another way of looking at it... - andy_c 21:17:32 05/04/08 (2)
      • RE: Yet another way of looking at it... - rick_m 17:41:03 05/10/08 (1)
        • RE: Yet another way of looking at it... - andy_c 18:28:09 05/10/08 (0)

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