JPS57172259A - Evaluating method of capacitor - Google Patents

Evaluating method of capacitor

Info

Publication number
JPS57172259A
JPS57172259A JP56057208A JP5720881A JPS57172259A JP S57172259 A JPS57172259 A JP S57172259A JP 56057208 A JP56057208 A JP 56057208A JP 5720881 A JP5720881 A JP 5720881A JP S57172259 A JPS57172259 A JP S57172259A
Authority
JP
Japan
Prior art keywords
voltage
sample
capacitor
resistor
dielectric breakdown
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
JP56057208A
Other languages
Japanese (ja)
Inventor
Yoshifumi Yoritomi
Masanori Takada
Minoru Tanaka
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 JP56057208A priority Critical patent/JPS57172259A/en
Publication of JPS57172259A publication Critical patent/JPS57172259A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/64—Testing of capacitors

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)

Abstract

PURPOSE:To detect a connection failure by a step response of a capacitor, by suppressing a voltage value applied to an offered sample, to voltage causing no dielectric breakdown of a film, or below, preventing a decision error of appreciation due to dielectric breakdown, and applying the step-like voltage. CONSTITUTION:In case when an offered sample 2 is a non-defective sample, a charging current by voltage of a step voltage generator 1 flows through a resistor 3, and voltage as shown by (a) is generated across the resistor 3. This voltage is compared with voltage of an electric power supply 5 for the reference potential which has been set in advance to a value being suitable for the offered sample 2, by a comparator 4, and it is displayed on an indicator that the sample is a non-defective unit. If the sample is a defective and has caused a connection failure, the charging current of the capacitor by the step voltage does not flow, voltage is scarcely generated across the resistor 3 as shown in (b), therefore, the failure can be displayed through the comparator 4 and the indicator 6. In this way, it is possible to decide a conneting state without causing dielectric breakdown of a film, by using the step voltage.
JP56057208A 1981-04-17 1981-04-17 Evaluating method of capacitor Pending JPS57172259A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56057208A JPS57172259A (en) 1981-04-17 1981-04-17 Evaluating method of capacitor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56057208A JPS57172259A (en) 1981-04-17 1981-04-17 Evaluating method of capacitor

Publications (1)

Publication Number Publication Date
JPS57172259A true JPS57172259A (en) 1982-10-23

Family

ID=13049087

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56057208A Pending JPS57172259A (en) 1981-04-17 1981-04-17 Evaluating method of capacitor

Country Status (1)

Country Link
JP (1) JPS57172259A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009229327A (en) * 2008-03-25 2009-10-08 Yokogawa Electric Corp Circuit element measuring device
EP2950112A3 (en) * 2014-05-28 2016-01-06 Powernet Oy Diagnosing a dc to dc converter output capacitor aging
JP2021148759A (en) * 2020-03-17 2021-09-27 株式会社 電子制御国際 Withstanding voltage testing device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009229327A (en) * 2008-03-25 2009-10-08 Yokogawa Electric Corp Circuit element measuring device
EP2950112A3 (en) * 2014-05-28 2016-01-06 Powernet Oy Diagnosing a dc to dc converter output capacitor aging
JP2021148759A (en) * 2020-03-17 2021-09-27 株式会社 電子制御国際 Withstanding voltage testing device

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