JPS64433A - Method for constituting circuit of semiconductor pressure sensor - Google Patents
Method for constituting circuit of semiconductor pressure sensorInfo
- Publication number
- JPS64433A JPS64433A JP15624487A JP15624487A JPS64433A JP S64433 A JPS64433 A JP S64433A JP 15624487 A JP15624487 A JP 15624487A JP 15624487 A JP15624487 A JP 15624487A JP S64433 A JPS64433 A JP S64433A
- Authority
- JP
- Japan
- Prior art keywords
- voltage
- resistor
- terminal
- amplifier
- output 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
- Measuring Fluid Pressure (AREA)
Abstract
PURPOSE: To widen the operating voltage range of a sensor output voltage by setting the value of the resistors constituting a differential amplifier at the resistance value satisfying the derived conduction by combination of an operational amplifier.
CONSTITUTION: The resistor R1 is provided between an inversion input terminal T- of the operational amplifier OP1 and an output terminal T4 of the amplifier OP1 and the resistor R2 is provided between a bridge output terminal T2 and the terminal T-. The resistor R3 is provided between the bridge output terminal T1 and the non- inversion input terminal T+ of the amplifier OP1 and the resistor R4 is provided between the output terminal T3 of a reference voltage Vd and the terminal T+. The resistance values are so set that the product of the resistance values of the resistors R1 and R3 is larger than the product of the resistance values of the resistors R2 and R4. Such characteristics that the sensor output voltage Vo is nearly zero until the sensor pressure increases to a prescribed pressure and that the voltage Vo increases linearly when said pressure increases to the prescribed pressure or above are, therefore, obtd. The operating voltage range of the voltage Vo is thus widened by shifting the characteristics to the direction where the level of the voltage Vo lowers.
COPYRIGHT: (C)1989,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15624487A JPH061227B2 (en) | 1987-06-23 | 1987-06-23 | Semiconductor pressure sensor circuit configuration method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP15624487A JPH061227B2 (en) | 1987-06-23 | 1987-06-23 | Semiconductor pressure sensor circuit configuration method |
Publications (3)
Publication Number | Publication Date |
---|---|
JPS64433A true JPS64433A (en) | 1989-01-05 |
JPH01433A JPH01433A (en) | 1989-01-05 |
JPH061227B2 JPH061227B2 (en) | 1994-01-05 |
Family
ID=15623528
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP15624487A Expired - Lifetime JPH061227B2 (en) | 1987-06-23 | 1987-06-23 | Semiconductor pressure sensor circuit configuration method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH061227B2 (en) |
-
1987
- 1987-06-23 JP JP15624487A patent/JPH061227B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH061227B2 (en) | 1994-01-05 |
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