Thyristor-controlled three-level withdrawable circuits

Bidirectional thyristor control, control the very trigger voltage output from the step-down transformer T 12V (when the water is turned on electrodes). It belongs to the withdr

awable circuit controlled level. Figure, Ri current limiting resistor, so as not to burn the tubes; Rz, C is capacitance-resistance protection circuit to protect TRIAC from overvoltage damage.

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