JPS6435286A - Power source diagnostic circuit - Google Patents

Power source diagnostic circuit

Info

Publication number
JPS6435286A
JPS6435286A JP62190864A JP19086487A JPS6435286A JP S6435286 A JPS6435286 A JP S6435286A JP 62190864 A JP62190864 A JP 62190864A JP 19086487 A JP19086487 A JP 19086487A JP S6435286 A JPS6435286 A JP S6435286A
Authority
JP
Japan
Prior art keywords
circuit
voltage
power source
supplied
power sources
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
JP62190864A
Other languages
Japanese (ja)
Inventor
Motoaki Yoshinaga
Tomoe Sekii
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.)
Toshiba Corp
Original Assignee
Toshiba 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 Toshiba Corp filed Critical Toshiba Corp
Priority to JP62190864A priority Critical patent/JPS6435286A/en
Publication of JPS6435286A publication Critical patent/JPS6435286A/en
Pending legal-status Critical Current

Links

Landscapes

  • Testing Of Individual Semiconductor Devices (AREA)
  • Testing Electric Properties And Detecting Electric Faults (AREA)
  • Testing Or Measuring Of Semiconductors Or The Like (AREA)

Abstract

PURPOSE:To dispense with an exclusive test program, by changing over a plurality of power sources by a timing control circuit and comparing the output voltage of each power source with reference voltage. CONSTITUTION:The output voltage from each of the power sources 11 to be measured in a power source part 10 is divided by a voltage divider circuit 14 to be supplied to a change-over circuit 15 and the voltage selected by the circuit 15 is inputted to a judge circuit 17. The selected voltage from the circuit 15 and the reference voltage 22 consisting of upper and lower limit values containing errors respectively different with respect to certain constant voltage are supplied to the circuit 17. The judge result of the circuit 17 is once stored in a memory/drive circuit 23, and a light emitting diode 24 and an alarm sound generator 25 are driven.
JP62190864A 1987-07-30 1987-07-30 Power source diagnostic circuit Pending JPS6435286A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62190864A JPS6435286A (en) 1987-07-30 1987-07-30 Power source diagnostic circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62190864A JPS6435286A (en) 1987-07-30 1987-07-30 Power source diagnostic circuit

Publications (1)

Publication Number Publication Date
JPS6435286A true JPS6435286A (en) 1989-02-06

Family

ID=16265036

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62190864A Pending JPS6435286A (en) 1987-07-30 1987-07-30 Power source diagnostic circuit

Country Status (1)

Country Link
JP (1) JPS6435286A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02228567A (en) * 1989-03-01 1990-09-11 Sharp Corp Reference device switch gear

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02228567A (en) * 1989-03-01 1990-09-11 Sharp Corp Reference device switch gear

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