Invention Grant
US09431226B2 High-voltage power unit and mass spectrometer using the power unit
有权
使用动力装置的高压动力装置和质谱仪
- Patent Title: High-voltage power unit and mass spectrometer using the power unit
- Patent Title (中): 使用动力装置的高压动力装置和质谱仪
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Application No.: US14440380Application Date: 2012-11-05
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Publication No.: US09431226B2Publication Date: 2016-08-30
- Inventor: Shiro Mizutani
- Applicant: SHIMADZU CORPORATION
- Applicant Address: JP Kyoto
- Assignee: SHIMADZU CORPORATION
- Current Assignee: SHIMADZU CORPORATION
- Current Assignee Address: JP Kyoto
- Agency: Sughrue Mion, PLLC
- International Application: PCT/JP2012/078595 WO 20121105
- International Announcement: WO2014/068780 WO 20140508
- Main IPC: H01J49/00
- IPC: H01J49/00 ; H01J49/02 ; H02M3/335 ; H02M7/10 ; H01J49/16 ; H01J49/36 ; H02M3/07 ; H02M1/00

Abstract:
An output terminal of a positive voltage generating circuit and an output terminal of a negative voltage generating circuit are connected in series, and an output terminal of the negative voltage generating circuit is connected to a ground via a resistor. A switching circuit and a series connection circuit of resistors are connected in parallel to each other between the output terminals of the positive voltage generating circuit and the negative voltage generating circuit. The switching circuit is on-off driven by a voltage signal taken from a junction point between the resistors, and the switching circuit is on-off driven by a voltage signal taken from a junction point between the resistors. Accordingly, when the polarity of an output voltage is switched, electric charges accumulated up to that point are discharged through the switching circuit of a voltage OFF-side polarity, so that the voltage quickly falls.
Public/Granted literature
- US20150287580A1 HIGH-VOLTAGE POWER UNIT AND MASS SPECTROMETER USING THE POWER UNIT Public/Granted day:2015-10-08
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