KR970024852A - TV's horizontal output transistor protection circuit - Google Patents
TV's horizontal output transistor protection circuit Download PDFInfo
- Publication number
- KR970024852A KR970024852A KR1019950038295A KR19950038295A KR970024852A KR 970024852 A KR970024852 A KR 970024852A KR 1019950038295 A KR1019950038295 A KR 1019950038295A KR 19950038295 A KR19950038295 A KR 19950038295A KR 970024852 A KR970024852 A KR 970024852A
- Authority
- KR
- South Korea
- Prior art keywords
- output transistor
- horizontal
- power
- horizontal output
- protection circuit
- Prior art date
Links
Abstract
본 발명은 고압 트랜스(FBT)의 이상시 수평출력 트랜지스터에 과전류가 흘러 발생하는 수평출력 트랜지스터의 파손을 방지하도록 한 티브이의 수평출력 트랜지스터 보호회로에 관한 것이다.The present invention relates to a horizontal output transistor protection circuit of a TV to prevent damage to the horizontal output transistor caused by an overcurrent flow to the horizontal output transistor in the event of an abnormal high voltage transformer (FBT).
이를 달성하기 위해 본 발명은, 수평 편향부내의 수평출력 트랜지스터로 흐르는 전류와 기준 전류를 비교하고 그 결과치를 출력하는 비교부와, 비교부에서 출력되는 신호로 과전류의 유무를 판단하고 과전류시 전원 오프신호를 발생시키는 마이콤과, 마이콤에서 출력되는 전원 오프신호에 따라 수평 편향부 및 플라이백 트랜스에 공급되는 전원을 차단시키는 전원 제어부를 구비한다.In order to achieve this, the present invention is to compare the current flowing to the horizontal output transistor in the horizontal deflection unit and the reference current and a comparison unit for outputting the result value, the signal output from the comparison unit to determine the presence of overcurrent and to turn off the power when overcurrent A microcomputer for generating a signal, and a power control unit for cutting off the power supplied to the horizontal deflection unit and the flyback transformer in accordance with the power off signal output from the microcomputer.
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음As this is a public information case, the full text was not included.
제1도는 종래 티브이의 수평 출력 회로도.1 is a horizontal output circuit diagram of a conventional TV.
제2도는 본 발명에 의한 티이브의 수평출력 트랜지스터 보호회로도.2 is a horizontal output transistor protection circuit diagram of a teave according to the present invention.
제3도는 본 발명에서 과전류 판단을 위한 파형도.3 is a waveform diagram for determining the overcurrent in the present invention.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950038295A KR970024852A (en) | 1995-10-31 | 1995-10-31 | TV's horizontal output transistor protection circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1019950038295A KR970024852A (en) | 1995-10-31 | 1995-10-31 | TV's horizontal output transistor protection circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
KR970024852A true KR970024852A (en) | 1997-05-30 |
Family
ID=66584855
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1019950038295A KR970024852A (en) | 1995-10-31 | 1995-10-31 | TV's horizontal output transistor protection circuit |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR970024852A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100476870B1 (en) * | 1997-09-24 | 2005-07-05 | 삼성전자주식회사 | Initializing signal generating circuit for control register |
-
1995
- 1995-10-31 KR KR1019950038295A patent/KR970024852A/en not_active Application Discontinuation
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100476870B1 (en) * | 1997-09-24 | 2005-07-05 | 삼성전자주식회사 | Initializing signal generating circuit for control register |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WITN | Withdrawal due to no request for examination |