JPS56155422A - Power device - Google Patents

Power device

Info

Publication number
JPS56155422A
JPS56155422A JP5930180A JP5930180A JPS56155422A JP S56155422 A JPS56155422 A JP S56155422A JP 5930180 A JP5930180 A JP 5930180A JP 5930180 A JP5930180 A JP 5930180A JP S56155422 A JPS56155422 A JP S56155422A
Authority
JP
Japan
Prior art keywords
output voltage
output
terminal
circuit
switching regulator
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
JP5930180A
Other languages
Japanese (ja)
Inventor
Masaharu Ishida
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.)
Rohm Co Ltd
Original Assignee
Rohm Co Ltd
Toyo Electronics Industry 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 Rohm Co Ltd, Toyo Electronics Industry Corp filed Critical Rohm Co Ltd
Priority to JP5930180A priority Critical patent/JPS56155422A/en
Publication of JPS56155422A publication Critical patent/JPS56155422A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G05—CONTROLLING; REGULATING
    • G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
    • G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
    • G05F1/10—Regulating voltage or current
    • G05F1/46—Regulating voltage or current wherein the variable actually regulated by the final control device is dc
    • G05F1/56—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices
    • G05F1/565—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor
    • G05F1/569—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection
    • G05F1/571—Regulating voltage or current wherein the variable actually regulated by the final control device is dc using semiconductor devices in series with the load as final control devices sensing a condition of the system or its load in addition to means responsive to deviations in the output of the system, e.g. current, voltage, power factor for protection with overvoltage detector

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Automation & Control Theory (AREA)
  • Dc-Dc Converters (AREA)

Abstract

PURPOSE:To suppress the sustenance of an abnormal state and enhance reliability by providing a protecting circuit which releases output voltage when said output voltage drops below the reference voltage having been set at a level lower than the reference voltage for controlling output voltage. CONSTITUTION:When a power switch 4 is turned on to supply a DC power source 6, the DC output voltage of a switching regulator is generated in an output terminal 24 and is supplied to a load 26. A protecting circuit 40 which releases the output voltage of the terminal 24 by instantaneously disabling the switching regulator when the output of the terminal 24 drops below prescribed reference value is provided to this switching regulator. The circuit 40 is constituted of a switching circuit which disables a transistor 2 which is a switching element for controlling output and a transistor 10 for driver.
JP5930180A 1980-05-05 1980-05-05 Power device Pending JPS56155422A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5930180A JPS56155422A (en) 1980-05-05 1980-05-05 Power device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5930180A JPS56155422A (en) 1980-05-05 1980-05-05 Power device

Publications (1)

Publication Number Publication Date
JPS56155422A true JPS56155422A (en) 1981-12-01

Family

ID=13109407

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5930180A Pending JPS56155422A (en) 1980-05-05 1980-05-05 Power device

Country Status (1)

Country Link
JP (1) JPS56155422A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014105947A (en) * 2012-11-29 2014-06-09 Fujitsu General Ltd Outdoor unit for air conditioner

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014105947A (en) * 2012-11-29 2014-06-09 Fujitsu General Ltd Outdoor unit for air conditioner

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