armature current control adjust with op amp

MisterBill2

Joined Jan 23, 2018
6,046
This is a small portion of a feedback loop circuit, and the components in question are intended to affect the response as the signal varies in opposite directions. And the diodes, D3 and D4 are used for a clamping function, that is, to limit the maximum voltage applied to the inverting input of the amplifier. Analog feedback systems can be quite complex, and so it is very important to understand what you are doing when adjusting them.
 
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