Victor Company of Japan, Limited

Yukio Kamiyama

Hideo Hishiki

A voltage dividing resistor device comprises a pair of electrode terminals applied with a voltage, a plurality of resistor bodies coupled between the pair of electrode terminals, an electrode terminal through which a divided voltage is obtained from an intermediate point located among the plurality of resistor bodies, and at least one conductor part formed to overlap with a part of at least one of the plurality of resistor bodies. An effective length of the resistor body which has a part thereof overlapping with the conductor part, is shortened by a length of the conductor part. The length of the conductor part is set depending on the divided voltage which is to be obtained.

Voltage dividing resistor device

The primary winding of a stepup transformer is energized by a time-varying current for inducing a high voltage pulse in the secondary winding of the transformer in response to a rapid change in the time-varying current. A plurality of first diodes and a plurality of capacitors are arranged to form a voltage multiplier for multiplying the amplitude of the high voltage pulse and storing the multiplied pulse on the capacitors to develop a high DC voltage. A second diode is connected in a circuit between one end of the secondary winding and ground so that a current may flow in a loop through the first and second diodes in response to the high voltage pulse and potentials of opposite polarities may develop across the secondary winding. The second diode provides a capacitance in series with the distributed capacitance of the secondary winding, thus reducing the total capacitance to permit ringing to occur at a desired harmonic frequency of the high voltage pulse.

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Iwai, Japan

Yukio Kamiyama