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Voltage regulator with op amp(negative feedback) and MOSFET
The schematic above is a very good voltage regulator, excepting the high power dissipation for Q1 (also I'd use an NPN instead of a PNP). Can I replace Q1 and Q2 with a high current n-mosfet and...
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Why 60% overshoot with 55° phase margin?
UPDATE: Based on the answers I received, I got this working beautifully. There's a full outcome report in one of the answers below. I'm working through the design of an electronic load, basically a...
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Implementing non-linear time delay
I have a feedback system including an OP-amp in comparator mode and a transistor, in present time it acts like a regulator, constantly limiting the current through the transistor to a certain value....
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Determine if feedback is negative or positive?
Is there a way to know from how a circuit is designed that is has negative feedback or positive feedback. Here are some examples: Example 1: Example 2:
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