| 摘要 |
PURPOSE:To dispense with the boosting transformer, the source of jamming to the preamplifier, and to miniaturize the unit by striking two (2) different phased pulse signals, the amplitude of either of which is made variable, and by rectifying these pulse signals one after another. CONSTITUTION:An oscillator 1 strikes two (2) different phased pulse signals, by which the switching operations are performed on transistors 2a and 2b respectively. The pulse signal on the collector side of a transistor 2a is varied by a control 4 and inputted to an alternate double rectification circuit 3 while the pulse signal on the collector side of a transistor 2b is directly inputted to the double rectification circuit 3. This alternate double rectification circuit 3 is composed of a series-connected diode 51-5N and capacitors 61-6N and 71-7N, in which the inputted pulse signals are rectified one after another to output the DC voltage.
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