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I think it is bridged cofiguration. One output is positive and one negative. But its not done in a way with one inverting OPAMP and one non inverting OPAMP. Here are two amplifiers in inverting configuration where on output of first one is signal shift on 180° (negative output) and on second one...
Thanks for reply.
In my case this two amplifier are class-AB amplifiers driving load of 8 Ω resistor and 300p capacitor. Amplifiers are the same. And they are stable in voltage follower configuration. But from previous project I know that there are big stability problems with low load...
Hi,
how to test stability of bridged amplifiers?
Normally I'm using Middlebrook's method but I can't use it to test attached circuit. I can test only each amplifier. From one previous project I know that stability of this circuit is worst then of one voltage follower connected operational...
Hellow,
I have worked on the same problem like you. You have to derive the real and imaginary part of Ti and Tr and then from this two T.
You can get the magnitude of T like sqrt(Re(T)*Re(T)+Im(T)*Im(T)) and phase atan(Im(T)/Re(T)).
In an attachment is a file with Middlbrooks method and...
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