| 摘要 |
PURPOSE:To produce a plurality of high voltage outputs having different output timing from a single transformer, by arranging a voltage doubler rectifier and an output control element connected to the prestage thereof at the secondary of a booster transformer. CONSTITUTION:When a transistor Q3 is controlled through a terminal P3 into non-conducting state, a capacitor C9 is charged only but voltage doubling/ rectifying operation is not carried out and thereby no DC component is outputted to a terminal J2. When the transistor Q3 is controlled into positively biased conducting state by means of a timing signal applied onto the input terminal P3, clamping operation is carried out through a clamp circuit comprising a capacitor C8, a transistor Q3 and a diode D2. Consequently, the collector voltage has maximum voltage of 0V and the output from the collector has a DC level shifted waveform. When this AC signal is rectified, DC output is produced at the anode of a diode D9. |
