HIGH VOLTAGE RECTIFIER CIRCUIT OF INVERTER FOR MAGNETRON

摘要

PURPOSE:To reduce the loss of power in a simple structure by connecting the first recovery diode with the reverse voltage withstanding property smaller than that of a PN high voltage diode to the PN high voltage diode in series. CONSTITUTION:The secondary winding 12 of a boosting transformer 7 is connected between A and K of a magnetron 16 through a double voltage rectifier circuit in which a high voltage capacitor 13, a PN high voltage diode 14, and the first recovery diode(F.R.D) 15 are connected in series. In such a composition, a reverse voltage applied to the diodes is alloted mostly to F.R.D 15 while the voltage is low, and alloted to the F.R.D 15 and the PN high voltage diode 14 when the voltage is high. The power loss of the diodes can be reduced consequently.