| 摘要 |
PURPOSE:To produce a plurality of high voltage outputs having different output timing from a single transformer by arranging an output control element and a voltage doubler/rectifier at the secondary of a booster transformer and lapping an AC voltage produced through the output control element at a control point over the output from the voltage doubler/rectifier. CONSTITUTION:During an interval when a transistor Q3 is turned OFF, a capacitor C9 is charged only and voltage doubling/rectifying operation is not carried out thus producing no DC component at terminal J2. When the transistor Q3 is controlled into conducting state, clamping operation is carried out through a clamper comprising a capacitor C8, the transistor Q3 and a diode d2, and the collector has a DC level shifted output. This AC signal is rectified and lapped over the output from a booster transformer T1 through a capacitor C7 for voltage regulation and DC cut, thus producing a DC output at the anode of a diode D9. By such arrangement, the size and the weight of the power source section are reduced resulting in cost reduction. |
