the control circuit of electric fence part 2

Published:2011/6/9 6:40:00 Author:Ariel Wang | Keyword: control, electric, fence | From:SeekIC

One part of the 220V AC voltage is reduced by T1.It is commutated by VD1 and it is filtered by C1.The other part is commutated by VD1.It is current limited by R1.It is filtered by C2.It provides power supply for the circuit of high voltage generator.When the impulsator gets to work,The frequency of electric impulse signal which outputs from the 3rd-pin of IC is 2Hz .It goes to the gate pole of thyristor VT by R4 and C5.So the VT is conductedy or stopped periodicity by the changing of the pulse signal.When VT is conducted,C2 discharges by the low voltage winding (winding W1) by step-up transformer.It generates pulsed high voltage on the high voltage winding of T2(winding W2).It discharges by the discharge spark interval F1 and F2.



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