An electric motor's electrode automatic regulator circuit

As shown in the figure below, this article introduces an automatic electrode regulator circuit for a motor, which has better performance. In the figure, BQ is the slip motor clutch excitation winding; TG is the tachometer generator, and BQTG is the tachometer generator excitation winding. For example, a current output type bridge comparison circuit with high accuracy and good linearity is used; an arc current differential negative feedback circuit (precursor) is used to make the lead time and correction intensity adjustable without causing overshoot.