Patent ID: 11877864
Assignee: MEASUREMENT SPECIALTIES, INC.
Field: Measurement (Instruments)
Classification: CPC A  G | IPC A  G

Claim 10:
11. A pressure-sensing system comprising:
a Wheatstone bridge having an input, a first output, and a second output, the Wheatstone bridge comprising:
a first pressure-sensitive element coupled between the input and the first output;
a second pressure-sensitive element coupled between the input and the second output;
a first resistor coupled between the first output and ground; and
a second resistor coupled between the second output and ground;

a differential-output operational-amplifier to provide a first current to the first output and a second current to the second output such that a resulting voltage between the first output and the second output is minimized; and
a protection circuit including a plurality of resistors coupled between the first output and the differential-output operational amplifier, and between the second node and the differential-output operational amplifier.