JPS6438611A - Temperature compensating circuit - Google Patents
Temperature compensating circuitInfo
- Publication number
- JPS6438611A JPS6438611A JP62193054A JP19305487A JPS6438611A JP S6438611 A JPS6438611 A JP S6438611A JP 62193054 A JP62193054 A JP 62193054A JP 19305487 A JP19305487 A JP 19305487A JP S6438611 A JPS6438611 A JP S6438611A
- Authority
- JP
- Japan
- Prior art keywords
- temperature
- signal
- vns
- vnb
- pulse width
- 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
- Indication And Recording Devices For Special Purposes And Tariff Metering Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
Abstract
PURPOSE:To reduce the number of components, namely, to simplify the structure of a temperature compensating circuit, by commonly using a detected temperature signal generated from one temperature-pulse width converting circuit for a plurality of temperature compensating circuits each constituted by a voltage dividing means and a switching means. CONSTITUTION:A temperature-pulse width converting circuit X oscillates a pulse width signal Vp which changes the duty ratio D(T) (time ratio of a pulse width t1 during H time with respect to a pulse repeating cycle T0) in accordance with the temperature detected by a temperature sensing element RT. Then, in a plurality of temperature compensating circuits YN (N=1, 2...), a measuring signal VN1 inputted by an input terminal IN is divided into a big signal VNB and a small signal VNS(VNB>VNS) by a voltage dividing means (resistor) CN. The signals VNB and VNS are supplied to a switching means (switching element) DN to be outputted alternately to an output terminal ON in accordance with the H/L change of the signal VP from the converting circuit X. In other words, a weighted mean of the signal VNB or VNS is outputted as a temperature compensated signal VNO, and therefore a simple and cheap temperature compensating circuit can be realized.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62193054A JP2546681B2 (en) | 1987-08-01 | 1987-08-01 | Temperature compensation circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62193054A JP2546681B2 (en) | 1987-08-01 | 1987-08-01 | Temperature compensation circuit |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6438611A true JPS6438611A (en) | 1989-02-08 |
JP2546681B2 JP2546681B2 (en) | 1996-10-23 |
Family
ID=16301419
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62193054A Expired - Lifetime JP2546681B2 (en) | 1987-08-01 | 1987-08-01 | Temperature compensation circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2546681B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06186187A (en) * | 1992-07-14 | 1994-07-08 | Anatel Corp | Method and device for measuring electrical conductivity of solution |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS534425A (en) * | 1976-07-02 | 1978-01-17 | Hitachi Ltd | Mono tube color pick up tube |
JPS6253356U (en) * | 1985-09-24 | 1987-04-02 |
-
1987
- 1987-08-01 JP JP62193054A patent/JP2546681B2/en not_active Expired - Lifetime
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS534425A (en) * | 1976-07-02 | 1978-01-17 | Hitachi Ltd | Mono tube color pick up tube |
JPS6253356U (en) * | 1985-09-24 | 1987-04-02 |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH06186187A (en) * | 1992-07-14 | 1994-07-08 | Anatel Corp | Method and device for measuring electrical conductivity of solution |
Also Published As
Publication number | Publication date |
---|---|
JP2546681B2 (en) | 1996-10-23 |
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