JPS6415415U - - Google Patents
Info
- Publication number
- JPS6415415U JPS6415415U JP10942487U JP10942487U JPS6415415U JP S6415415 U JPS6415415 U JP S6415415U JP 10942487 U JP10942487 U JP 10942487U JP 10942487 U JP10942487 U JP 10942487U JP S6415415 U JPS6415415 U JP S6415415U
- Authority
- JP
- Japan
- Prior art keywords
- adjustment device
- differential
- amplifier
- fet
- circuit
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Description
第１図は本考案の一実施例を示す差動増幅器の
回路構成図、第２図は従来例を示す回路構成図で
ある。
１……初段差動増幅ＦＥＴ、２……次段アンプ
、３……定電流回路、１０……調整装置、１１…
…同期検波回路、１２……表示部、１４……時定
数回路。
FIG. 1 is a circuit configuration diagram of a differential amplifier showing an embodiment of the present invention, and FIG. 2 is a circuit configuration diagram showing a conventional example. DESCRIPTION OF SYMBOLS 1... First stage differential amplification FET, 2... Next stage amplifier, 3... Constant current circuit, 10... Adjustment device, 11...
... Synchronous detection circuit, 12 ... Display section, 14 ... Time constant circuit.
Claims (1)
抗を介して正電源側に接続され、ソース端子が共
通接続された一対のＦＥＴからなる初段差動ＦＥ
Ｔと、前記ソース端子に接続された定電流回路と
、前記初段差動ＦＥＴのドレインと前記第１、第
２の負荷抵抗の接続点のそれぞれが次段のアンプ
に接続された差動増幅器の温度ドリフト調整装置
において、前記調整装置はコンデンサを介して前
記定電流回路に接続されるとともに同期検波回路
に接続された交流信号源と、前記次段アンプの出
力を時定数回路を介して前記ＦＥＴのいずれかの
ゲートに接続するとともに、その出力を入力する
同期検波回路とを具備したことを特徴とする差動
増幅器の温度ドリフト調整装置。 The first stage differential FE consists of a pair of FETs whose drain terminals are each connected to the positive power supply side via the first and second load resistors, and whose source terminals are commonly connected.
T, a constant current circuit connected to the source terminal, and a differential amplifier in which connection points between the drain of the first stage differential FET and the first and second load resistors are connected to the next stage amplifier, respectively. In the temperature drift adjustment device, the adjustment device connects an AC signal source connected to the constant current circuit through a capacitor and a synchronous detection circuit, and an output of the next stage amplifier to the FET through a time constant circuit. What is claimed is: 1. A temperature drift adjustment device for a differential amplifier, comprising: a synchronous detection circuit connected to one of the gates of the gate, and inputting the output thereof.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10942487U JPH0441613Y2 (en) | 1987-07-16 | 1987-07-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10942487U JPH0441613Y2 (en) | 1987-07-16 | 1987-07-16 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6415415U true JPS6415415U (en) | 1989-01-26 |
| JPH0441613Y2 JPH0441613Y2 (en) | 1992-09-30 |
Family
ID=31345652
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10942487U Expired JPH0441613Y2 (en) | 1987-07-16 | 1987-07-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0441613Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6192685A (en) * | 1984-09-08 | 1986-05-10 | 狭山精密工業株式会社 | Automatic pinball rental machine |
| JPS6192686A (en) * | 1984-09-08 | 1986-05-10 | 狭山精密工業株式会社 | Unjustice preventing mechanism of automatic pinball rental machine |
-
1987
- 1987-07-16 JP JP10942487U patent/JPH0441613Y2/ja not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6192685A (en) * | 1984-09-08 | 1986-05-10 | 狭山精密工業株式会社 | Automatic pinball rental machine |
| JPS6192686A (en) * | 1984-09-08 | 1986-05-10 | 狭山精密工業株式会社 | Unjustice preventing mechanism of automatic pinball rental machine |
| JPH0425034B2 (en) * | 1984-09-08 | 1992-04-28 | Sayama Seimitsu Kogyo Kk | |
| JPH0425035B2 (en) * | 1984-09-08 | 1992-04-28 | Sayama Seimitsu Kogyo Kk |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0441613Y2 (en) | 1992-09-30 |