| 摘要 |
PURPOSE:To enable high frequency and small amplitude actions to be performed and miniaturize a saturated reactor transformer lightening the weight, by using the saturated reactor transformer in order to control the oscillation frequency of an oscillation driving circuit for switching the first side current. CONSTITUTION:When a power source switch 4 is turned ON, then transistors Q1, Q2 are alternately turned ON/OFF, and output is conducted via a power source transformer 23 and a rectification and smoothing circuit 25. To the control winding Nc of a saturated reactor transformer 21, DC control current from a control circuit 26 obtained by detecting the output voltage of the power source transformer 23 is fed. Control current through the control winding Nc of the saturated reactor transformer 21 is controlled by the control circuit 26, and the inductance of the second windings Ns1, Ns2 is controlled, and the oscillation frequency of an oscillation driving circuit 24 is controlled. As a result, DC output voltage from the power source transformer 23 is kept constant. |
