KR940000257Y1 - 텔레비젼 수상기의 자동주파수 제어회로 - Google Patents
텔레비젼 수상기의 자동주파수 제어회로 Download PDFInfo
- Publication number
- KR940000257Y1 KR940000257Y1 KR2019890017156U KR890017156U KR940000257Y1 KR 940000257 Y1 KR940000257 Y1 KR 940000257Y1 KR 2019890017156 U KR2019890017156 U KR 2019890017156U KR 890017156 U KR890017156 U KR 890017156U KR 940000257 Y1 KR940000257 Y1 KR 940000257Y1
- Authority
- KR
- South Korea
- Prior art keywords
- transistor
- transistors
- base
- frequency control
- automatic frequency
- Prior art date
Links
- 238000010586 diagram Methods 0.000 description 9
- 230000010355 oscillation Effects 0.000 description 5
- 230000001360 synchronised effect Effects 0.000 description 5
- 239000003990 capacitor Substances 0.000 description 2
- 239000002131 composite material Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000010354 integration Effects 0.000 description 2
- 230000007274 generation of a signal involved in cell-cell signaling Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 210000002784 stomach Anatomy 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
- H04N5/50—Tuning indicators; Automatic tuning control
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03J—TUNING RESONANT CIRCUITS; SELECTING RESONANT CIRCUITS
- H03J7/00—Automatic frequency control; Automatic scanning over a band of frequencies
- H03J7/02—Automatic frequency control
- H03J7/04—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant
- H03J7/06—Automatic frequency control where the frequency control is accomplished by varying the electrical characteristics of a non-mechanically adjustable element or where the nature of the frequency controlling element is not significant using counters or frequency dividers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N5/00—Details of television systems
- H04N5/04—Synchronising
Landscapes
- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Synchronizing For Television (AREA)
Abstract
Description
Claims (1)
- 트랜지스터(Q11-Q13)로 전류미러를 구성한후 저항(R22) 및 다이오드(D11-D14)로 바이어스 스트링된 트랜지스터(Q22)의 에미터를 트랜지스터(Q14), (Q17)의 베이스측에 각기 접속하고, 그 트랜지스터(Q14), (Q17)의 베이스측에 각기 접속하고 콜렉터가 상기 트랜지스터(Q11), (Q13)의 콜렉터에 각기 접속된 트랜지스터(Q15), (Q16)의 베이스에 각각 접속하며, 상기 트랜지스터(Q15), (Q16)의 에미터 공통접속점을 접지저항(R18)에 접속한 다음, 상기 트랜지스터(Q11), (Q15)의 콜렉터 공통 접속점을 저역필터(2')에 접속하고, 그 접속점을 수평발진부(3) 및 카운터(4)를 통해 콜렉터가 상기 트랜지스터(Q17)의 베이스에 접속된 트랜지스터(Q21)의 베이스에 접속함과 아울러 인버터(I11)를 통해서는 콜렉터가 상기 트랜지스터(Q14)의 베이스에 접속된 트랜지스터(Q20)의 베이스에 접속하며, 수평동기신호단자(HSYN)를 저항(R16)을 통해서는 콜렉터가 상기 트랜지스터(Q14)의 베이스 및 상기 트랜지스터(Q20)의 콜렉터 접속점에 접속된 트랜지스터(Q18)의 베이스에 접속하고, 저항(R15)을 통해서는 콜렉터가 상기 트랜지스터(Q17)의 베이스 및 상기 트랜지스터(Q21)의 콜렉터접속점에 접속된 트랜지스터(Q19)의 베이스에 접속하여 구성된 것을 특징으로 하는 텔레비젼 수상기의 자동주파수 제어회로.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019890017156U KR940000257Y1 (ko) | 1989-11-20 | 1989-11-20 | 텔레비젼 수상기의 자동주파수 제어회로 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR2019890017156U KR940000257Y1 (ko) | 1989-11-20 | 1989-11-20 | 텔레비젼 수상기의 자동주파수 제어회로 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR910010305U KR910010305U (ko) | 1991-06-29 |
KR940000257Y1 true KR940000257Y1 (ko) | 1994-01-19 |
Family
ID=19292045
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR2019890017156U KR940000257Y1 (ko) | 1989-11-20 | 1989-11-20 | 텔레비젼 수상기의 자동주파수 제어회로 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR940000257Y1 (ko) |
-
1989
- 1989-11-20 KR KR2019890017156U patent/KR940000257Y1/ko not_active IP Right Cessation
Also Published As
Publication number | Publication date |
---|---|
KR910010305U (ko) | 1991-06-29 |
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Date | Code | Title | Description |
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UA0108 | Application for utility model registration |
Comment text: Application for Utility Model Registration Patent event code: UA01011R08D Patent event date: 19891120 |
|
A201 | Request for examination | ||
UA0201 | Request for examination |
Patent event date: 19910307 Patent event code: UA02012R01D Comment text: Request for Examination of Application Patent event date: 19891120 Patent event code: UA02011R01I Comment text: Application for Utility Model Registration |
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UG1501 | Laying open of application | ||
UG1604 | Publication of application |
Patent event code: UG16041S01I Comment text: Decision on Publication of Application Patent event date: 19931218 |
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E701 | Decision to grant or registration of patent right | ||
UE0701 | Decision of registration |
Patent event date: 19940328 Comment text: Decision to Grant Registration Patent event code: UE07011S01D |
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UR0701 | Registration of establishment |
Patent event date: 19940409 Patent event code: UR07011E01D Comment text: Registration of Establishment |
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Payment date: 19961227 Start annual number: 4 End annual number: 4 |
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Payment date: 19971226 Start annual number: 5 End annual number: 5 |
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FPAY | Annual fee payment |
Payment date: 19981229 Year of fee payment: 6 |
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UR1001 | Payment of annual fee |
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UC1903 | Unpaid annual fee |