The role of the conductor in the chain?

Question

Electronics

Hello everyone, please explain why you need a C5 conder

Answer 1

Frequency equalization (suppresses self-excitation at RF)

Answer 2

With this inclusion of the capacitor, we get the so-called. "integrator". Its action in the signal path is equivalent to a conventional L-shaped RC circuit with a time constant equal to the product of C5 by R (parallel R6 and R7).
Such a circuit limits the frequency response, smoothes transients and suppresses possible excitation in the voltage stabilization ring of the OOS. There is no such integrator in the current measurement circuit, since a trigger operation occurs there, when the current increases above the threshold set by the R13 regulator, and this does not require speed limiting, but, on the contrary, its maximization so that nothing has time to burn out.