JPS6253356U - - Google Patents
Info
- Publication number
- JPS6253356U JPS6253356U JP14607285U JP14607285U JPS6253356U JP S6253356 U JPS6253356 U JP S6253356U JP 14607285 U JP14607285 U JP 14607285U JP 14607285 U JP14607285 U JP 14607285U JP S6253356 U JPS6253356 U JP S6253356U
- Authority
- JP
- Japan
- Prior art keywords
- operational amplifier
- circuit
- temperature
- output
- feedback
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
Description
第１図は本考案に係る温度補償回路の電気回路
図、第２図はパルス幅変調回路の構成例を示す電
気回路図、第３図Ａ，Ｂ，Ｃはパルス幅変調回路
の出力波形図、第４図は従来例を示す回路図であ
る。
１０……測温回路、１２……感温素子、２０…
…パルス幅変調回路、３１，４１……オペアンプ
、３１Ｋ，４１Ｋ……帰還回路、３４，４４……
アナログスイツチ。
Fig. 1 is an electric circuit diagram of a temperature compensation circuit according to the present invention, Fig. 2 is an electric circuit diagram showing a configuration example of a pulse width modulation circuit, and Fig. 3 A, B, and C are output waveform diagrams of the pulse width modulation circuit. , FIG. 4 is a circuit diagram showing a conventional example. 10... Temperature measuring circuit, 12... Temperature sensing element, 20...
...Pulse width modulation circuit, 31, 41... Operational amplifier, 31K, 41K... Feedback circuit, 34, 44...
analog switch.
Claims (1)
調し、該変調後の出力によつてオペアンプの帰還
回路に設けたアナログスイツチのオンオフ操作を
行うことにより、前記オペアンプの帰還量を調整
するようにしたことを特徴とする温度補償回路。 The feedback amount of the operational amplifier is adjusted by pulse-width modulating the output of a temperature measuring circuit having a temperature sensing element and turning on/off an analog switch provided in the feedback circuit of the operational amplifier using the modulated output. A temperature compensation circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14607285U JPH0442770Y2 (en) | 1985-09-24 | 1985-09-24 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14607285U JPH0442770Y2 (en) | 1985-09-24 | 1985-09-24 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6253356U true JPS6253356U (en) | 1987-04-02 |
| JPH0442770Y2 JPH0442770Y2 (en) | 1992-10-09 |
Family
ID=31058198
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14607285U Expired JPH0442770Y2 (en) | 1985-09-24 | 1985-09-24 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0442770Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6438611A (en) * | 1987-08-01 | 1989-02-08 | Horiba Ltd | Temperature compensating circuit |
-
1985
- 1985-09-24 JP JP14607285U patent/JPH0442770Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6438611A (en) * | 1987-08-01 | 1989-02-08 | Horiba Ltd | Temperature compensating circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0442770Y2 (en) | 1992-10-09 |
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