The oscillation circuit with automatic gain control (AGC)

Published:2011/7/17 22:06:00 Author:zj | Keyword: oscillation circuit, automatic gain control | From:SeekIC

Thediagram is the oscillation circuit with automatic gain control ( AGC). In the circuit, A1 ~ A3 is circuits whichchangeAC signal from the pickup output into a DC signal. The DC signal changes can be used as a comparator A4 input signal, which is then compared with a reference voltage. It does the oscillator output amplitude modulation. Due to the A3 output DC signal fluctuation components, it will affect the normal work of the comparator A4.



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