JPS5710461A - Dc detector - Google Patents

Dc detector

Info

Publication number
JPS5710461A
JPS5710461A JP8534480A JP8534480A JPS5710461A JP S5710461 A JPS5710461 A JP S5710461A JP 8534480 A JP8534480 A JP 8534480A JP 8534480 A JP8534480 A JP 8534480A JP S5710461 A JPS5710461 A JP S5710461A
Authority
JP
Japan
Prior art keywords
current
transformer
power source
voltage
detection
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
JP8534480A
Other languages
Japanese (ja)
Inventor
Michio Kono
Tamio Onuma
Jun Senda
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP8534480A priority Critical patent/JPS5710461A/en
Publication of JPS5710461A publication Critical patent/JPS5710461A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/18—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers
    • G01R19/20—Arrangements for measuring currents or voltages or for indicating presence or sign thereof using conversion of DC into AC, e.g. with choppers using transductors, i.e. a magnetic core transducer the saturation of which is cyclically reversed by an AC source on the secondary side

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)

Abstract

PURPOSE:To get good detection characterisic with high precision toward temperature by detecting DC without utilizing saturated magnetic flux of the magnetic core affecting the linearity of detection. CONSTITUTION:When voltage is impressed from AC power source 3 on a transformer 21 in the direction as illustrated 23, the rectifiers 112 and 213 are made to conduct and the DC Ia, which is to be detected by the DC power source 44 and load 55, flows and said current Ia makes the current Is to flow through the detection circuit 101 in the illustrated direction through the voltage transformation of the transformer 11. When the AC power source impresses voltage reverse to the illustrated direction, the rectifiers 111 and 211 are made to conduct and the current Ia which is to be detected, flows and said current Ia similarly makes the current Is to flow through the detection circuit 101 in the illustrated direction through the voltage transformation of the transformer 11. Thereby the iron loss of the transformer can be reduced and the influence of temperature is removed to get good linearity.
JP8534480A 1980-06-24 1980-06-24 Dc detector Pending JPS5710461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8534480A JPS5710461A (en) 1980-06-24 1980-06-24 Dc detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP8534480A JPS5710461A (en) 1980-06-24 1980-06-24 Dc detector

Publications (1)

Publication Number Publication Date
JPS5710461A true JPS5710461A (en) 1982-01-20

Family

ID=13856035

Family Applications (1)

Application Number Title Priority Date Filing Date
JP8534480A Pending JPS5710461A (en) 1980-06-24 1980-06-24 Dc detector

Country Status (1)

Country Link
JP (1) JPS5710461A (en)

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