JPS586465U - sink tip clamp circuit - Google Patents

sink tip clamp circuit

Info

Publication number
JPS586465U
JPS586465U JP9917081U JP9917081U JPS586465U JP S586465 U JPS586465 U JP S586465U JP 9917081 U JP9917081 U JP 9917081U JP 9917081 U JP9917081 U JP 9917081U JP S586465 U JPS586465 U JP S586465U
Authority
JP
Japan
Prior art keywords
transistor
clamp circuit
emitter
collector
sync
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
JP9917081U
Other languages
Japanese (ja)
Inventor
河野 光雲
Original Assignee
株式会社東芝
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 株式会社東芝 filed Critical 株式会社東芝
Priority to JP9917081U priority Critical patent/JPS586465U/en
Publication of JPS586465U publication Critical patent/JPS586465U/en
Pending legal-status Critical Current

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Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。
(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は従来のシンクチップクランプ回路を示す回路図
、第2図はトランジスタの飽和電流対コレクタ・エミッ
タ間電位差の特性図、第3図はこの考案の一実施例を示
す回路図である。 Tr1〜Tr5・・・・・・トランジスタ、21・・・
・・・基準電圧源、22. 24. 26. 27. 
30・・・・・・抵抗。
FIG. 1 is a circuit diagram showing a conventional sync tip clamp circuit, FIG. 2 is a characteristic diagram of saturation current of a transistor versus collector-emitter potential difference, and FIG. 3 is a circuit diagram showing an embodiment of this invention. Tr1 to Tr5...Transistor, 21...
...Reference voltage source, 22. 24. 26. 27.
30...Resistance.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 同期信号を含む信号のシンクチップレベルを一定するシ
ンクチップクランプ回路において、同期信号をそれぞれ
ベース入力とする第1、第2、第3、第4のトランジス
タを有し、第1、第2トランジスタの共通コレクタが第
1の抵抗を介して電′源に接続され、第3、第4のトラ
ンジスタの共通エミッタが第2の抵抗を介して接地され
、前記第1のトランジスタのエミッタと第3のトランジ
スタのコレクタとの接続部に基準電源が接続され、前記
第2のトランジスタのエミッタと第4のトランジスタの
コレクタの接続部が結合容量を介して前記信号の入力端
子に接続されるとともに第5のトランジスタのベースに
接続されてなることを特徴としたシックチップクランプ
回路。
A sync tip clamp circuit that fixes the sync tip level of a signal including a sync signal includes first, second, third, and fourth transistors whose base inputs are the sync signal, and A common collector is connected to a power supply via a first resistor, a common emitter of the third and fourth transistors is grounded via a second resistor, and the emitter of the first transistor and the third transistor are connected to each other. A reference power supply is connected to a connection point between the emitter of the second transistor and the collector of the fourth transistor, and a connection point between the emitter of the second transistor and the collector of the fourth transistor is connected to the signal input terminal via a coupling capacitance, and a fifth transistor A thick chip clamp circuit characterized by being connected to the base of.
JP9917081U 1981-07-03 1981-07-03 sink tip clamp circuit Pending JPS586465U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9917081U JPS586465U (en) 1981-07-03 1981-07-03 sink tip clamp circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9917081U JPS586465U (en) 1981-07-03 1981-07-03 sink tip clamp circuit

Publications (1)

Publication Number Publication Date
JPS586465U true JPS586465U (en) 1983-01-17

Family

ID=29893912

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9917081U Pending JPS586465U (en) 1981-07-03 1981-07-03 sink tip clamp circuit

Country Status (1)

Country Link
JP (1) JPS586465U (en)

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