JPS58109321U - Preamplifier for television cameras - Google Patents
Preamplifier for television camerasInfo
- Publication number
- JPS58109321U JPS58109321U JP15036282U JP15036282U JPS58109321U JP S58109321 U JPS58109321 U JP S58109321U JP 15036282 U JP15036282 U JP 15036282U JP 15036282 U JP15036282 U JP 15036282U JP S58109321 U JPS58109321 U JP S58109321U
- Authority
- JP
- Japan
- Prior art keywords
- amplifier circuit
- output terminal
- input terminal
- preamplifier
- terminal
- 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.)
- Granted
Links
Landscapes
- Amplifiers (AREA)
- Picture Signal Circuits (AREA)
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
第1図は従来のパーシバル回路による雑音補償を行なっ
た前置増幅器の等価回路図、第2図は第1図に示す等価
回路の周波数特性性図、第3図はこの考案の実施例を示
す雑音補償を行なった前置 ゛−増幅器を含む光電変
換装置の回路図、第4図は第3図に示す光電変換装置の
等価回路図、第5図は第4図に示す等価回路の周波数特
性図、第6図は第3図に示す光電変換装置の実際の測定
結果を示す周波数特性図である。′□
なお、図中同一符号は同−又は相当部分を示す。
20・・・前置増幅器、21・・・第1増岬回路、22
・・・第2増幅器、23・・・帰還回路、24・・・負
!還回路、25・・・第1入力端子、26・・・第2出
力端子。Figure 1 is an equivalent circuit diagram of a preamplifier that performs noise compensation using a conventional percival circuit, Figure 2 is a frequency characteristic diagram of the equivalent circuit shown in Figure 1, and Figure 3 is an example of this invention. A circuit diagram of a photoelectric conversion device including a preamplifier with noise compensation, FIG. 4 is an equivalent circuit diagram of the photoelectric conversion device shown in FIG. 3, and FIG. 5 is a frequency characteristic of the equivalent circuit shown in FIG. 4. 6 are frequency characteristic diagrams showing actual measurement results of the photoelectric conversion device shown in FIG. 3. ′□ Note that the same reference numerals in the figures indicate the same or equivalent parts. 20... Preamplifier, 21... First augmentation circuit, 22
...Second amplifier, 23...Feedback circuit, 24...Negative! Return circuit, 25...first input terminal, 26...second output terminal.
Claims (1)
第2入力端子及び第2出力端子を有し、上記第2入力端
芋が上記第1出力端子に接続された第2増幅回路、上記
第1増幅回路の上記第1出力端子と上記第1入力端子と
の間番J続された周波数選択性帰還インピーダンそ、上
記第2増幅回路の上記第2出力端子と上記第1轡幅回路
の上記第1入力端子との間に接続された負帰還回路を備
え、信号に対する通過帯域特性を雑音に対する通過帯域
特性とが相互にほぼ独立にきめ得るようにしたことを特
徴とする前置増幅器。a first amplifier circuit having a first input terminal and a first output terminal;
a second amplifier circuit having a second input terminal and a second output terminal, the second input terminal being connected to the first output terminal; the first output terminal of the first amplifier circuit; and the first input terminal of the first amplifier circuit. a frequency selective feedback impedance connected to the terminal; and a negative feedback circuit connected between the second output terminal of the second amplifier circuit and the first input terminal of the first width circuit. 1. A preamplifier characterized in that the passband characteristics for signals and the passband characteristics for noise can be determined almost independently of each other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15036282U JPS58109321U (en) | 1982-09-30 | 1982-09-30 | Preamplifier for television cameras |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15036282U JPS58109321U (en) | 1982-09-30 | 1982-09-30 | Preamplifier for television cameras |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS58109321U true JPS58109321U (en) | 1983-07-26 |
JPS6138267Y2 JPS6138267Y2 (en) | 1986-11-05 |
Family
ID=30101759
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15036282U Granted JPS58109321U (en) | 1982-09-30 | 1982-09-30 | Preamplifier for television cameras |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58109321U (en) |
-
1982
- 1982-09-30 JP JP15036282U patent/JPS58109321U/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS6138267Y2 (en) | 1986-11-05 |
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