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Patent Searching and Data


Title:
POWER SUPPLY AND MASS SPECTROMETER
Document Type and Number:
WIPO Patent Application WO/2017/145334
Kind Code:
A1
Abstract:
The objective is to more rapidly switch the polarity of a high voltage and output the high voltage. Therefore, in the present invention a first switch circuit of a power supply has: a first switch element that is connected to an output terminal and to the control terminal of which a first drive signal is input; a plurality of second switch elements cascode-connected between the first switch element and a voltage source of a first polarity; and a first voltage-dividing circuit that divides the voltage between the voltage source of the first polarity and the output terminal and inputs a divided voltage to a control terminal of each of the plurality of second switch elements. In addition, a second switch circuit has: a third switch element that is connected to a voltage source of a second polarity and to the control terminal of which a second drive signal is input; a plurality of fourth switch elements cascode-connected between the third switch element and the output terminal; and a second voltage-dividing circuit that divides the voltage between the voltage source of the second polarity and the output terminal and inputs a divided voltage to a control terminal of each of the plurality of fourth switch elements.

Inventors:
WATANABE Toshimitsu (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
TONE Masazumi (6-6, Marunouchi 1-chome, Chiyoda-k, Tokyo 80, 〒1008280, JP)
TOUDA Hiroshi (24-14 Nishishimbashi 1-chome, Minato-k, Tokyo 17, 〒1058717, JP)
ONISHI Fujio (24-14 Nishishimbashi 1-chome, Minato-k, Tokyo 17, 〒1058717, JP)
TERUI Yasushi (24-14 Nishishimbashi 1-chome, Minato-k, Tokyo 17, 〒1058717, JP)
Application Number:
JP2016/055677
Publication Date:
August 31, 2017
Filing Date:
February 25, 2016
Export Citation:
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Assignee:
HITACHI HIGH-TECHNOLOGIES CORPORATION (24-14, Nishishimbashi 1-chome Minato-k, Tokyo 17, 〒1058717, JP)
International Classes:
H02J1/00; H01J49/42; H02M1/08
Domestic Patent References:
WO2014068780A12014-05-08
Foreign References:
JPS6260311A1987-03-17
JPS5324765A1978-03-07
JPH06102739A1994-04-15
JPS58113117U1983-08-02
JP2013115482A2013-06-10
Attorney, Agent or Firm:
SHOYO INTELLECTUAL PROPERTY FIRM (6F Tobu Yokohama 2ND Bldg, 15-1 Kitasaiwai 2-chome, Nishi-ku, Yokohama-sh, Kanagawa 04, 〒2200004, JP)
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