| 摘要 |
PURPOSE:To omit the tertiary winding of the pulse transformer for the circuit which generates the gate pulse of the thyristor by resetting the pulse transformer during the half cycle free from the control. CONSTITUTION:The capacitor is charged to the negative peak value via diode D when the negative voltage is being generated at secondary winding NP2 of transformer T. Thyristor th conducts via phase shifter PS for the period of generation of the positive voltage, and capacitor C has discharge via primary winding NP1 of pulse transfofmer CP. As a result, the high output pulse is obtained at winding NP2. And the tertiary winding can be omitted for transformer CP since diode D is provided in parallel to thyristor th. |
