JPS57174898A - Three-phase x-ray generator - Google Patents

Three-phase x-ray generator

Info

Publication number
JPS57174898A
JPS57174898A JP5983681A JP5983681A JPS57174898A JP S57174898 A JPS57174898 A JP S57174898A JP 5983681 A JP5983681 A JP 5983681A JP 5983681 A JP5983681 A JP 5983681A JP S57174898 A JPS57174898 A JP S57174898A
Authority
JP
Japan
Prior art keywords
keying
damping
phase
damping resistor
circuit
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.)
Granted
Application number
JP5983681A
Other languages
Japanese (ja)
Other versions
JPH0159719B2 (en
Inventor
Hirobumi Hino
Masayoshi Suzuki
Kazuo Kaneko
Kiichi Tokunaga
Keizo Inagaki
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.)
Hitachi Ltd
Hitachi Healthcare Manufacturing Ltd
Original Assignee
Hitachi Ltd
Hitachi Medical Corp
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 Hitachi Ltd, Hitachi Medical Corp filed Critical Hitachi Ltd
Priority to JP5983681A priority Critical patent/JPS57174898A/en
Publication of JPS57174898A publication Critical patent/JPS57174898A/en
Publication of JPH0159719B2 publication Critical patent/JPH0159719B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05G—X-RAY TECHNIQUE
    • H05G1/00—X-ray apparatus involving X-ray tubes; Circuits therefor
    • H05G1/08—Electrical details
    • H05G1/10—Power supply arrangements for feeding the X-ray tube
    • H05G1/18—Power supply arrangements for feeding the X-ray tube with polyphase ac of low frequency rectified

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • X-Ray Techniques (AREA)
  • Rectifiers (AREA)

Abstract

PURPOSE:To suppress overshooting of the threshold voltage of a tube by generating a function to determine a damping resistor and a damping time by means of the set tube voltage and the set tube current and selecting the most suitable damping resistor and controlling the most suitable damping time accordingly. CONSTITUTION:The neutral point of a Y-connection of the primary winding of a high voltage transformer 2 is rectified by a three-phase rectifier 6, and the output is fed to a keying circuit 21. The secondary winding of the high voltage transformer 2 is connected to three-phase rectifiers 3, 4, and the output is fed to an X-ray tube 5. The keying circuit 21 has a series connection of resistors and the first keying element, and the second keying element to short-circuit the series connection; and they are controlled by the outputs from a damping time controller 22 and a damping resistor controller 23, thus the most suitable damping resistor and the most suitable damping time are selected.
JP5983681A 1981-04-22 1981-04-22 Three-phase x-ray generator Granted JPS57174898A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5983681A JPS57174898A (en) 1981-04-22 1981-04-22 Three-phase x-ray generator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5983681A JPS57174898A (en) 1981-04-22 1981-04-22 Three-phase x-ray generator

Publications (2)

Publication Number Publication Date
JPS57174898A true JPS57174898A (en) 1982-10-27
JPH0159719B2 JPH0159719B2 (en) 1989-12-19

Family

ID=13124702

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5983681A Granted JPS57174898A (en) 1981-04-22 1981-04-22 Three-phase x-ray generator

Country Status (1)

Country Link
JP (1) JPS57174898A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003070240A (en) * 2001-08-24 2003-03-07 Toshiba Corp Power supply unit
JP2003070239A (en) * 2001-08-24 2003-03-07 Toshiba Corp Power supply unit
JP2003070241A (en) * 2001-08-24 2003-03-07 Toshiba Corp Power supply unit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003070240A (en) * 2001-08-24 2003-03-07 Toshiba Corp Power supply unit
JP2003070239A (en) * 2001-08-24 2003-03-07 Toshiba Corp Power supply unit
JP2003070241A (en) * 2001-08-24 2003-03-07 Toshiba Corp Power supply unit

Also Published As

Publication number Publication date
JPH0159719B2 (en) 1989-12-19

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