Hello.
I've now studied concept and basic principle of electronic voltage regulator.
You better see the attached image first.
The OP-AMP here should be brain of voltage regulator as it determines whether output voltage of the regulator matches to target voltage (The output voltage corresponding V_ref in voltage divider) or not. Question is how it control current.
I've attempted to trace voltage drop and I'm so easily stuck right now. When two inputs of OP-AMP are matched then...what is the output voltage? And when it is not matched, How OP-AMP controls current through transistors to match output voltage to target voltage?
Maybe I still don't have good mind in use of OP-AMP.
I've now studied concept and basic principle of electronic voltage regulator.
You better see the attached image first.
The OP-AMP here should be brain of voltage regulator as it determines whether output voltage of the regulator matches to target voltage (The output voltage corresponding V_ref in voltage divider) or not. Question is how it control current.
I've attempted to trace voltage drop and I'm so easily stuck right now. When two inputs of OP-AMP are matched then...what is the output voltage? And when it is not matched, How OP-AMP controls current through transistors to match output voltage to target voltage?
Maybe I still don't have good mind in use of OP-AMP.
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