KR950001883B1 - Circuit for preventing overflow of voltage - Google Patents

Circuit for preventing overflow of voltage Download PDF

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Publication number
KR950001883B1
KR950001883B1 KR92014148A KR920014148A KR950001883B1 KR 950001883 B1 KR950001883 B1 KR 950001883B1 KR 92014148 A KR92014148 A KR 92014148A KR 920014148 A KR920014148 A KR 920014148A KR 950001883 B1 KR950001883 B1 KR 950001883B1
Authority
KR
South Korea
Prior art keywords
voltage
abnormal
abnormal state
detector
circuit
Prior art date
Application number
KR92014148A
Other languages
Korean (ko)
Other versions
KR940004910A (en
Inventor
Dae-Hwan Kim
Original Assignee
Gold Star Co
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 Gold Star Co filed Critical Gold Star Co
Priority to KR92014148A priority Critical patent/KR950001883B1/en
Publication of KR940004910A publication Critical patent/KR940004910A/en
Application granted granted Critical
Publication of KR950001883B1 publication Critical patent/KR950001883B1/en

Links

Classifications

    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/10—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers
    • H02H7/12—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for converters; for rectifiers for static converters or rectifiers
    • H02H7/1203—Circuits independent of the type of conversion
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
    • G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
    • G01R19/16528—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values using digital techniques or performing arithmetic operations
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02M—APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC, OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWER SUPPLY SYSTEMS; CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUT POWER; CONTROL OR REGULATION THEREOF
    • H02M1/00—Details of apparatus for conversion
    • H02M1/14—Arrangements for reducing ripples from dc input or output

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Protection Of Static Devices (AREA)
  • Measurement Of Current Or Voltage (AREA)
  • Direct Current Feeding And Distribution (AREA)

Abstract

The apparatus prootects electric parts or devices at the time of the abnormal voltage occurrence by detecting the abnormal state, and spontaneously driving a simple digital circuit. The digital circuit comprises a voltage detector (50) detecting a voltage of a commercial power source; the abnormal voltage detector (60) comparing the detected voltage with a reference voltage, and generating a normal or abnormal state signal; a microprocessor (70) controlling a electric load based on the normal or abnormal state signal from the detector (60).
KR92014148A 1992-08-06 1992-08-06 Circuit for preventing overflow of voltage KR950001883B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR92014148A KR950001883B1 (en) 1992-08-06 1992-08-06 Circuit for preventing overflow of voltage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR92014148A KR950001883B1 (en) 1992-08-06 1992-08-06 Circuit for preventing overflow of voltage

Publications (2)

Publication Number Publication Date
KR940004910A KR940004910A (en) 1994-03-16
KR950001883B1 true KR950001883B1 (en) 1995-03-04

Family

ID=19337605

Family Applications (1)

Application Number Title Priority Date Filing Date
KR92014148A KR950001883B1 (en) 1992-08-06 1992-08-06 Circuit for preventing overflow of voltage

Country Status (1)

Country Link
KR (1) KR950001883B1 (en)

Also Published As

Publication number Publication date
KR940004910A (en) 1994-03-16

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