Kevin Weddle Posted December 31, 2009 Report Share Posted December 31, 2009 Does amplifier feedback create more stability because of the DC biasing? There is nothing to combining the input with output. Quote Link to comment Share on other sites More sharing options...
Hero999 Posted December 31, 2009 Report Share Posted December 31, 2009 Sorry but I don't know what you're talking about.In future please provide as much information as you can when asking questions: preferably example schematics and a detailed description.Amplifier stability is mainly about gain and phase shift. Quote Link to comment Share on other sites More sharing options...
Kevin Weddle Posted January 13, 2010 Author Report Share Posted January 13, 2010 An integrator only has a capacitor feedback, but most opamps also include a feedback resistor. But not all integrators have just a capcitor feedback. Quote Link to comment Share on other sites More sharing options...
Kevin Weddle Posted January 14, 2010 Author Report Share Posted January 14, 2010 When the signal reaches a point of DC, the gain is open loop. Anything near DC is open loop. There is always some current from output to input, even with just a capacitor. So it's feedback current and not voltage reducing that's more important. Quote Link to comment Share on other sites More sharing options...
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