Saturable reactor pulse forming circuit having an extended low frequency operating range provided by auxiliary reactor

Claim 1

A PULSE FORMING CIRCUIT HAVING AN EXTENDED LOW FREQUENCY RANGE, WHICH COMPRISES: A CORE OF READILY SATURABLE MAGNETIC MATERIAL HAVING A GENERALLY RECTANGULAR HYSTERESIS LOOP, A SATURATING WINDING, A TRIGGERING WINDING AND A RESET WINDING ALL WOUND ON THE CORE, A SOURCE OF CURRENT, A SWITCHING DEVICE CONNECTED TO THE SOURCE OF CURRENT AND HAVING AN INPUT CIRUIT AND AN OUTPUT CIRCUIT RESPECTIVELY CONNECTED TO THE TRIGGERING AND RESET WINDINGS SO THAT UPON ABRUPT TERMINATION OF CURRENT FLOW IN THE SATURATING WINDING A VOLTAGE IS INDUCED IN THE TRIGGERING WINDING CAUSING CURRENT TO FLOW IN THE SWITCHING DEVICE OUTPUT CIRCUIT THAT DRIVES THE CORE TO THE OPPOSITE CONDITION OF SATURATION, AND MEANS INCLUDING AN AUXILIARY SATURABLE REACTOR CONNECTED TO THE SATURATING WINDING FOR CONTROLLING THE FLOW OF CURRENT FROM THE SOURCE THROUGH THE SATURATING WINDING AND FOR INCREASING THE ABRUPTNESS OF THE RATE OF CHANGE OF CURRENT IN THE SATURATING WINDING.