JPS55107967A - Measuring method for characteristic of magnetic core - Google Patents

Measuring method for characteristic of magnetic core

Info

Publication number
JPS55107967A
JPS55107967A JP1424979A JP1424979A JPS55107967A JP S55107967 A JPS55107967 A JP S55107967A JP 1424979 A JP1424979 A JP 1424979A JP 1424979 A JP1424979 A JP 1424979A JP S55107967 A JPS55107967 A JP S55107967A
Authority
JP
Japan
Prior art keywords
windings
resistor
amplifier
magnetic core
rectifier
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
JP1424979A
Other languages
Japanese (ja)
Inventor
Hisakatsu Kiwaki
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
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP1424979A priority Critical patent/JPS55107967A/en
Publication of JPS55107967A publication Critical patent/JPS55107967A/en
Pending legal-status Critical Current

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  • Measuring Magnetic Variables (AREA)

Abstract

PURPOSE: To accurately predict the characteristics of a magnetic core with a simple configuration by contracting the characteristics of a semiconductor rectifier equivalently using a voltage follower circuit employing an operational amplifier, combining the characteristics with the magnetic core to form a similar circuit to the actual case.
CONSTITUTION: The forward voltage drop of a rectifier Dd in a rectifying circuit is applied to the non-inverting input terminal of an operational amplifier OP. Thus, the output of the amplifier OP is applied to a non-inverting inout terminal. When the amplifier OP oprates as a voltage follower and the output from the amplifier OP is applied to a resistor R, the voltage drop between the terminals P and N becomes zero. Output windings NL' are wound on two magnetic cores Cr1, Cr2, and are energized by AC power supplies Ea1', Ea2' through a rectifier Di and a load resistor RL'. The control windings Nc' are connected in series with each other, and the control currents ic' are supplied through the resistor Rc' to the windings Nc'. Shorting windings Ns' are shorted through a resistor Rs'. The time constants of the respective units are determined to the actual application. Thus, the characteristics of the magnetic cores applied to actual case can be accurately predicted with a simple configuration.
COPYRIGHT: (C)1980,JPO&Japio
JP1424979A 1979-02-13 1979-02-13 Measuring method for characteristic of magnetic core Pending JPS55107967A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1424979A JPS55107967A (en) 1979-02-13 1979-02-13 Measuring method for characteristic of magnetic core

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1424979A JPS55107967A (en) 1979-02-13 1979-02-13 Measuring method for characteristic of magnetic core

Publications (1)

Publication Number Publication Date
JPS55107967A true JPS55107967A (en) 1980-08-19

Family

ID=11855808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1424979A Pending JPS55107967A (en) 1979-02-13 1979-02-13 Measuring method for characteristic of magnetic core

Country Status (1)

Country Link
JP (1) JPS55107967A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62274278A (en) * 1986-05-23 1987-11-28 Seiko Instr & Electronics Ltd Magnetic characteristic measuring instrument

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62274278A (en) * 1986-05-23 1987-11-28 Seiko Instr & Electronics Ltd Magnetic characteristic measuring instrument

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