JPS5760265A - Current voltage converter for ac input - Google Patents

Current voltage converter for ac input

Info

Publication number
JPS5760265A
JPS5760265A JP13445280A JP13445280A JPS5760265A JP S5760265 A JPS5760265 A JP S5760265A JP 13445280 A JP13445280 A JP 13445280A JP 13445280 A JP13445280 A JP 13445280A JP S5760265 A JPS5760265 A JP S5760265A
Authority
JP
Japan
Prior art keywords
capacitor
resistor
input
operational amplifier
current
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
JP13445280A
Other languages
Japanese (ja)
Other versions
JPH0155422B2 (en
Inventor
Minoru Nomura
Tetsuro Maekawa
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.)
Anritsu Corp
Original Assignee
Anritsu 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 Anritsu Corp filed Critical Anritsu Corp
Priority to JP13445280A priority Critical patent/JPS5760265A/en
Publication of JPS5760265A publication Critical patent/JPS5760265A/en
Publication of JPH0155422B2 publication Critical patent/JPH0155422B2/ja
Granted legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R15/00—Details of measuring arrangements of the types provided for in groups G01R17/00 - G01R29/00, G01R33/00 - G01R33/26 or G01R35/00
    • G01R15/14—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks
    • G01R15/18—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers
    • G01R15/183—Adaptations providing voltage or current isolation, e.g. for high-voltage or high-current networks using inductive devices, e.g. transformers using transformers with a magnetic core

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Measurement Of Current Or Voltage (AREA)

Abstract

PURPOSE:To improve a DC stability and to enable to obtain a flat property up to a low frequency region, by a method wherein a resistor is connected between an output side of an operational amplifier and a side whereto an input of a capacitor is applied. CONSTITUTION:A primary winding 3 and a secondary winding 4 are wound around a core 2 of a current transformer 1, and a resistor 7, which conducts a feedback from an output side, is connected to an inversion input side of an operational amplifier 6 connected to a DC stabilizing capacitor 5. Additionally, a resistor 9, having a high-resistance value, is connected to the output side of the operational amplifier 6 and the input side of the capacitor 5. A current I to be measured is fed to the primary winding 3 to find the current to be measured from an output voltage V obtained at an output terminal 8. Even in case a value of a capacitor, required for the realization of a flat low frequency property, is large, the value of the capacitor can be equivalent realized through the selection of the resistance value of the resistor 9.
JP13445280A 1980-09-29 1980-09-29 Current voltage converter for ac input Granted JPS5760265A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13445280A JPS5760265A (en) 1980-09-29 1980-09-29 Current voltage converter for ac input

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13445280A JPS5760265A (en) 1980-09-29 1980-09-29 Current voltage converter for ac input

Publications (2)

Publication Number Publication Date
JPS5760265A true JPS5760265A (en) 1982-04-12
JPH0155422B2 JPH0155422B2 (en) 1989-11-24

Family

ID=15128667

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13445280A Granted JPS5760265A (en) 1980-09-29 1980-09-29 Current voltage converter for ac input

Country Status (1)

Country Link
JP (1) JPS5760265A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2388914A (en) * 2002-05-10 2003-11-26 Pri Ltd Current transformer with reduced resistance
CN109541513A (en) * 2018-12-25 2019-03-29 北京东方计量测试研究所 A kind of exchange micro-current is traced to the source device and method

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101846702B (en) * 2010-05-10 2012-05-30 伊博电源（杭州）有限公司 Inductive current detection circuit

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2388914A (en) * 2002-05-10 2003-11-26 Pri Ltd Current transformer with reduced resistance
GB2388914B (en) * 2002-05-10 2005-09-28 Pri Ltd Clamp-on ct
CN109541513A (en) * 2018-12-25 2019-03-29 北京东方计量测试研究所 A kind of exchange micro-current is traced to the source device and method
CN109541513B (en) * 2018-12-25 2022-02-08 北京东方计量测试研究所 Alternating current micro-current tracing device and method

Also Published As

Publication number Publication date
JPH0155422B2 (en) 1989-11-24

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