KR100328248B1 - 과전압 방지기능을 구비한 인버터 제어기 - Google Patents
과전압 방지기능을 구비한 인버터 제어기 Download PDFInfo
- Publication number
- KR100328248B1 KR100328248B1 KR1019990025320A KR19990025320A KR100328248B1 KR 100328248 B1 KR100328248 B1 KR 100328248B1 KR 1019990025320 A KR1019990025320 A KR 1019990025320A KR 19990025320 A KR19990025320 A KR 19990025320A KR 100328248 B1 KR100328248 B1 KR 100328248B1
- Authority
- KR
- South Korea
- Prior art keywords
- voltage
- resistor
- inverter controller
- comparator
- end connected
- 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.)
- Expired - Fee Related
Links
- 238000001514 detection method Methods 0.000 claims abstract description 20
- 238000000034 method Methods 0.000 claims 3
- 230000002159 abnormal effect Effects 0.000 abstract description 4
- 239000003990 capacitor Substances 0.000 description 10
- 238000010586 diagram Methods 0.000 description 6
- 230000002093 peripheral effect Effects 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 1
- 230000001447 compensatory effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
Classifications
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- 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
- H02H7/122—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 for inverters, i.e. DC/AC converters
- H02H7/1227—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 for inverters, i.e. DC/AC converters responsive to abnormalities in the output circuit, e.g. short circuit
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/05—Details with means for increasing reliability, e.g. redundancy arrangements
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/20—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess voltage
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- 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
- H02M7/00—Conversion of AC power input into DC power output; Conversion of DC power input into AC power output
- H02M7/42—Conversion of DC power input into AC power output without possibility of reversal
- H02M7/44—Conversion of DC power input into AC power output without possibility of reversal by static converters
- H02M7/48—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode
- H02M7/53—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal
- H02M7/537—Conversion of DC power input into AC power output without possibility of reversal by static converters using discharge tubes with control electrode or semiconductor devices with control electrode using devices of a triode or transistor type requiring continuous application of a control signal using semiconductor devices only, e.g. single switched pulse inverters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Circuit Arrangements For Discharge Lamps (AREA)
- Inverter Devices (AREA)
Abstract
Description
Claims (4)
- 백라이트의 구동을 제어하는 인버터 제어기에 있어서,오픈램프검출부(14)의 제3비교기(14b)가 '하이'레벨을 출력하면,피드백전압을 입력받는 반전 입력단자(INV)측의 전압을 설정전압이상으로 유지시키는 일정전압 유지회로부(15); 를 포함함을 특징으로 하는 과전압 방지기능을 구비한 인버터 제어기.
- 제1항에 있어서, 상기 일정전압 유지회로부(15)는오픈램프검출부(14)의 제3비교기(14b)의 출력단에 접속한 일측단과, 피드백전압을 입력받는 반전 입력단자(INV)에 접속한 타측단을 갖는 제1저항(R1);이 제1 저항(R1)의 타측단에 접속한 일측단과, 접지로 접속한 타측단을 갖는 제2 저항(R2);를 포함함을 특징으로 하는 과전압 방지기능을 구비한 인버터 제어기.
- 제1항에 있어서, 상기 일정전압 유지회로부(15)는오픈램프검출부(14)의 제3비교기(14b)의 출력단에 접속한 애노단과, 제1저항의 일측단에 접속한 캐소드단을 갖는 다이오드(D);이 다이오드의 캐소드단에 접속한 일측단과, 피드백전압을 입력받는 반전 입력단자(INV)에 접속한 타측단을 갖는 제1저항(R1);이 제1 저항(R1)의 타측단에 접속한 일측단과, 접지로 접속한 타측단을 갖는 제2 저항(R2);를 포함함을 특징으로 하는 과전압 방지기능을 구비한 인버터 제어기.
- 제2항 또는 제3항에 있어서, 상기 일정전압 유지회로부(15)는피드백전압이 '1.0'V이하일 때, 상기 제2저항(R2) 양단에 걸리는 전압이 '1.0V∼1.5V' 사이의 전압이 되도록 제1저항(R1)과 제2저항(R2)의 비율을 설정한 것을 특징으로 하는 과전압 방지기능을 구비한 인버터 제어기.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990025320A KR100328248B1 (ko) | 1999-06-29 | 1999-06-29 | 과전압 방지기능을 구비한 인버터 제어기 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019990025320A KR100328248B1 (ko) | 1999-06-29 | 1999-06-29 | 과전압 방지기능을 구비한 인버터 제어기 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20010004626A KR20010004626A (ko) | 2001-01-15 |
KR100328248B1 true KR100328248B1 (ko) | 2002-03-16 |
Family
ID=19596981
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019990025320A Expired - Fee Related KR100328248B1 (ko) | 1999-06-29 | 1999-06-29 | 과전압 방지기능을 구비한 인버터 제어기 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100328248B1 (ko) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100825099B1 (ko) * | 2001-12-20 | 2008-04-25 | 삼성전자주식회사 | 표시 장치용 백라이트 장치 |
KR100674873B1 (ko) * | 2005-06-15 | 2007-01-30 | 삼성전기주식회사 | 백라이트 인버터의 시간 제어회로 |
-
1999
- 1999-06-29 KR KR1019990025320A patent/KR100328248B1/ko not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
KR20010004626A (ko) | 2001-01-15 |
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PA0109 | Patent application |
Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 19990629 |
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