georgejor
Junior Member
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Posts: 15
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Dear all, I would like to ask the stability requirement of OpAmp in positive feedback. I do not know is the requirement same as negative feedback one? ie. phase is prefer > 45 degree?
For example: Eopamp in+ in- out+ out- gain=1000 R1 in+ vss 1k R2 in+ out+ 1k Input: in+ & Output: out+
What is the specification of real Opamp is necessary? If there is any good material teach positive feedback, please let me know. Thank you very much!
Best regards, George
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