JPS5472995A - Power supply unit - Google Patents

Power supply unit

Info

Publication number
JPS5472995A
JPS5472995A JP14039077A JP14039077A JPS5472995A JP S5472995 A JPS5472995 A JP S5472995A JP 14039077 A JP14039077 A JP 14039077A JP 14039077 A JP14039077 A JP 14039077A JP S5472995 A JPS5472995 A JP S5472995A
Authority
JP
Japan
Prior art keywords
switch
voltage
current
capacitor
coil
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14039077A
Other languages
Japanese (ja)
Inventor
Naoyoshi Fujiwara
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP14039077A priority Critical patent/JPS5472995A/en
Publication of JPS5472995A publication Critical patent/JPS5472995A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E30/00—Energy generation of nuclear origin
    • Y02E30/10—Nuclear fusion reactors

Landscapes

  • Generation Of Surge Voltage And Current (AREA)

Abstract

PURPOSE: To reduce the number of DC cut-off switches, by using a voltage generated at the coil of a transformer for the voltage of capacitor C for a commutation circuit for the DC cutting off of a plasma-current exciting power supply.
CONSTITUTION: Main-circuit current (if) of plasma-exciting transformer coil LF is supplied from DC power supply P1 to DC cut-off switch S1 to release switch SP1. After a short time passes, the operation of cut-off switch S1c allows charge current (ic) of capacitor C charged right before to flow to switch S1 to neutralise current (if), thereby cutting off the current of switch S1. At this time, (if) flows via time- constant adjusting resistance R causing the voltage drop of R.if at coil LF, and by this voltage, charge current (icg) flows to capacitor C, which is charged reversely. Since the voltage of coil LF falls, the polarity of (icg) is inverted, but since switch Sic is biassed reversely, capacitor C maintains the constant reverse voltage; after a certain time passes, the inversion in polarity is caused through the operation of inverting switch S1r, and the next preparations are made.
COPYRIGHT: (C)1979,JPO&Japio
JP14039077A 1977-11-22 1977-11-22 Power supply unit Pending JPS5472995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14039077A JPS5472995A (en) 1977-11-22 1977-11-22 Power supply unit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14039077A JPS5472995A (en) 1977-11-22 1977-11-22 Power supply unit

Publications (1)

Publication Number Publication Date
JPS5472995A true JPS5472995A (en) 1979-06-11

Family

ID=15267685

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14039077A Pending JPS5472995A (en) 1977-11-22 1977-11-22 Power supply unit

Country Status (1)

Country Link
JP (1) JPS5472995A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5563581A (en) * 1978-11-08 1980-05-13 Japan Atom Energy Res Inst High voltage generating device
US4788025A (en) * 1984-11-29 1988-11-29 Mitsubishi Denki Kabushiki Kaisha Power source for nuclear fusion reactor

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5563581A (en) * 1978-11-08 1980-05-13 Japan Atom Energy Res Inst High voltage generating device
JPS6321428B2 (en) * 1978-11-08 1988-05-06 Hitachi Ltd
US4788025A (en) * 1984-11-29 1988-11-29 Mitsubishi Denki Kabushiki Kaisha Power source for nuclear fusion reactor

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