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Answer by jonk for How does the feedback work in this linear power supply?
It may be easier to see if you break things up into functional groups. Here are the first few of these: simulate this circuit – Schematic created using CircuitLab Starting from the left, you have an...
View ArticleAnswer by le_top for How does the feedback work in this linear power supply?
The opamp "+"-input gets a fraction of the output voltage which is the positive input voltage on one end and the negative output on the other. When the opamp "+"-input increases (pin 3), the output...
View ArticleAnswer by Jarrett for How does the feedback work in this linear power supply?
I see where your confusion is, and I think what you're missing is that the bottom rail there is not labelled ground anywhere, and the non-inverting input is chassis-ground referenced. The inverting...
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How does the feedback work in this linear power supply?
How does the feedback loop in this circuit work? Image source I am unfamiliar with this configuration. It seems to have positive feedback.
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