EP0505662A1 - Zerhacker mit veränderlichen Ein- und Ausschaltzeiten - Google Patents

Zerhacker mit veränderlichen Ein- und Ausschaltzeiten Download PDF

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Publication number
EP0505662A1
EP0505662A1 EP91830124A EP91830124A EP0505662A1 EP 0505662 A1 EP0505662 A1 EP 0505662A1 EP 91830124 A EP91830124 A EP 91830124A EP 91830124 A EP91830124 A EP 91830124A EP 0505662 A1 EP0505662 A1 EP 0505662A1
Authority
EP
European Patent Office
Prior art keywords
voltage
high voltage
switch
output
transformer
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.)
Withdrawn
Application number
EP91830124A
Other languages
English (en)
French (fr)
Inventor
Alessio Ceretti
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.)
COMTEC ELECTRONICS PRODUCTS AND COMPONENTS Srl
Original Assignee
COMTEC ELECTRONICS PRODUCTS AND COMPONENTS Srl
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 COMTEC ELECTRONICS PRODUCTS AND COMPONENTS Srl filed Critical COMTEC ELECTRONICS PRODUCTS AND COMPONENTS Srl
Priority to EP91830124A priority Critical patent/EP0505662A1/de
Publication of EP0505662A1 publication Critical patent/EP0505662A1/de
Withdrawn legal-status Critical Current

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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
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/34—Anode current, heater current or heater voltage of X-ray tube
    • 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
    • H05G1/20—Power supply arrangements for feeding the X-ray tube with high-frequency AC; with pulse trains
    • 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
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/30—Controlling
    • H05G1/32—Supply voltage of the X-ray apparatus or tube

Definitions

  • the power of the generated X-rays, and hence the depth of their penetration, depends upon the voltage applied between cathode and anode, hereinafter also simply called high voltage, whereas the intensity of the emitted X-ray beam is a function of the feeding characteristics of the filament which is fed by a voltage of a few Volts (low voltage).
  • the filament temperature is adjusted by acting on a so-called mA knob.
  • the control unit further comprises a differential amplifier CP2 having an input connected to the return of the milliAmperes (mA) of the transformer AT, and the other input connected to a second reference voltage adjustable by the operator for adjusting the current in the filament of the tube RG, and hence the intensity of the emitted X-ray beam.
  • a differential amplifier CP2 having an input connected to the return of the milliAmperes (mA) of the transformer AT, and the other input connected to a second reference voltage adjustable by the operator for adjusting the current in the filament of the tube RG, and hence the intensity of the emitted X-ray beam.
  • second voltage is obtained for example through a voltage source V2 and a potentiometer PR2.

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)
EP91830124A 1991-03-28 1991-03-28 Zerhacker mit veränderlichen Ein- und Ausschaltzeiten Withdrawn EP0505662A1 (de)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP91830124A EP0505662A1 (de) 1991-03-28 1991-03-28 Zerhacker mit veränderlichen Ein- und Ausschaltzeiten

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91830124A EP0505662A1 (de) 1991-03-28 1991-03-28 Zerhacker mit veränderlichen Ein- und Ausschaltzeiten

Publications (1)

Publication Number Publication Date
EP0505662A1 true EP0505662A1 (de) 1992-09-30

Family

ID=8208938

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91830124A Withdrawn EP0505662A1 (de) 1991-03-28 1991-03-28 Zerhacker mit veränderlichen Ein- und Ausschaltzeiten

Country Status (1)

Country Link
EP (1) EP0505662A1 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102279304A (zh) * 2011-03-31 2011-12-14 欧瑞传动电气有限公司 低压变频器的直流母线电压检测电路

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0253477A1 (de) * 1986-05-22 1988-01-20 Utilx Corporation Anordnung zur Erfassung von Hochspannungen
US4797908A (en) * 1984-09-14 1989-01-10 Kabushiki Kaisha Toshiba Voltage-resonance type power supply circuit for X-ray tube
US4823250A (en) * 1987-11-05 1989-04-18 Picker International, Inc. Electronic control for light weight, portable x-ray system
DE3833148A1 (de) * 1987-09-30 1989-04-20 Toshiba Kawasaki Kk Hochspannungserzeuger fuer eine roentgenroehre
US4839915A (en) * 1985-01-09 1989-06-13 Hitachi Medical Corp. Inverter type X-ray apparatus
EP0336849A1 (de) * 1988-04-08 1989-10-11 General Electric Cgr S.A. Verfahren zur Spannungsregelung eines Spannungssignals, insbesondere für Röntgenröhren

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4797908A (en) * 1984-09-14 1989-01-10 Kabushiki Kaisha Toshiba Voltage-resonance type power supply circuit for X-ray tube
US4839915A (en) * 1985-01-09 1989-06-13 Hitachi Medical Corp. Inverter type X-ray apparatus
EP0253477A1 (de) * 1986-05-22 1988-01-20 Utilx Corporation Anordnung zur Erfassung von Hochspannungen
DE3833148A1 (de) * 1987-09-30 1989-04-20 Toshiba Kawasaki Kk Hochspannungserzeuger fuer eine roentgenroehre
US4823250A (en) * 1987-11-05 1989-04-18 Picker International, Inc. Electronic control for light weight, portable x-ray system
EP0336849A1 (de) * 1988-04-08 1989-10-11 General Electric Cgr S.A. Verfahren zur Spannungsregelung eines Spannungssignals, insbesondere für Röntgenröhren

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102279304A (zh) * 2011-03-31 2011-12-14 欧瑞传动电气有限公司 低压变频器的直流母线电压检测电路

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PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

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Designated state(s): AT BE CH DE DK ES FR GB GR IT LI LU NL SE

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Effective date: 19930331