JPS57197799A - X-ray tube overload protection circuit - Google Patents

X-ray tube overload protection circuit

Info

Publication number
JPS57197799A
JPS57197799A JP8227981A JP8227981A JPS57197799A JP S57197799 A JPS57197799 A JP S57197799A JP 8227981 A JP8227981 A JP 8227981A JP 8227981 A JP8227981 A JP 8227981A JP S57197799 A JPS57197799 A JP S57197799A
Authority
JP
Japan
Prior art keywords
protection circuit
overload protection
digitally
ray tube
rom35
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
JP8227981A
Other languages
Japanese (ja)
Inventor
Masami Shimizu
Kazuo Yamamoto
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 Healthcare Manufacturing Ltd
Original Assignee
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 Medical Corp filed Critical Hitachi Medical Corp
Priority to JP8227981A priority Critical patent/JPS57197799A/en
Publication of JPS57197799A publication Critical patent/JPS57197799A/en
Pending 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
    • H05G1/26—Measuring, controlling or protecting
    • H05G1/54—Protecting or lifetime prediction

Landscapes

  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • X-Ray Techniques (AREA)

Abstract

PURPOSE:To improve the package density of an overload protection circuit and enable its high accuracy control by using IC memory as the overload protection circuit that used the network configuration and select-controlling it digitally. CONSTITUTION:A select switch 31, addressing switch 32 for data read, encoder 33 and photographic timer 10 which make the switching output binary, and encoder 34 which makes the output binary are connected to the addressing terminal of the ROM35 which digitally prestores the allowable load data depending upon the respective photographing time of an x-ray tube. The allowable load data which is digitally read from the ROM35 is converted into analog signals using a D/A converter. The converted analog signals are amplified by a buffer amplifier 37 with gain resistors 52 and 53 and gain switching contacts 54 and 55 and are used as the one input voltage of a division device 38.
JP8227981A 1981-05-29 1981-05-29 X-ray tube overload protection circuit Pending JPS57197799A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8227981A JPS57197799A (en) 1981-05-29 1981-05-29 X-ray tube overload protection circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8227981A JPS57197799A (en) 1981-05-29 1981-05-29 X-ray tube overload protection circuit

Publications (1)

Publication Number Publication Date
JPS57197799A true JPS57197799A (en) 1982-12-04

Family

ID=13770060

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8227981A Pending JPS57197799A (en) 1981-05-29 1981-05-29 X-ray tube overload protection circuit

Country Status (1)

Country Link
JP (1) JPS57197799A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61271799A (en) * 1985-05-25 1986-12-02 Shimadzu Corp X-ray device for medical treatment
JPH0269750U (en) * 1988-11-16 1990-05-28
JPH0594897A (en) * 1991-09-30 1993-04-16 Shimadzu Corp X-ray control device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61271799A (en) * 1985-05-25 1986-12-02 Shimadzu Corp X-ray device for medical treatment
JPH0269750U (en) * 1988-11-16 1990-05-28
JPH0594897A (en) * 1991-09-30 1993-04-16 Shimadzu Corp X-ray control device

Similar Documents

Publication Publication Date Title
JPS5753145A (en) Calibrator for analogue-digital converter
ES8705699A1 (en) Static numerical circuit interrupter having a calibration circuit.
GB2073971B (en) Circuit interrupter with digital trip unit and optically-coupled data input/output system
EP0369716A3 (en) Amplifying circuit
JPS57109089A (en) Initial value resetting circuit for operational amplifier
DE3275594D1 (en) Operation mode setting circuitry for microprocessor
JPS5520008A (en) Digital signal receiving device
JPS5739617A (en) Digital-to-analog converter
DK0436222T3 (en) Circuit for digital measurement of an electrical signal
GB2110483B (en) Circuit for converting an input d c voltage into an output d c voltage
JPS57197799A (en) X-ray tube overload protection circuit
HK57986A (en) Circuit for converting an input d.c.voltage into an output d.c.voltage
JPS5658306A (en) Automatic gain control circuit
JPS5474667A (en) Level adjustment system
KR930003568A (en) Controller
JPS5776918A (en) A/d converter
JPS64806A (en) Power amplifier circuit device
JPS5523553A (en) Input/output control circuit
JPS57203323A (en) Offset controller
JPS5647802A (en) Analog output device
JPS5757080A (en) Picture processing device
JPS55124121A (en) Analog switch circuit for triggering exposure control circuit
JPS56168427A (en) Analog-to-digital converter
SU868595A1 (en) Digital stroboscopic converter of electric signals
JPS5745715A (en) Schmitt trigger circuit