Position: Index > Bridge Circuit >

Servo_controlling_bridge_drive

2016-05-17 01:11  
Declaration:We aim to transmit more information by carrying articles . We will delete it soon, if we are involved in the problems of article content ,copyright or other problems.


Servo_controlling_bridge_drive
Figure 4-2 shows a way to reduce errors because of the bridge common-mode output voltage. A1 biases Q1 to servo the bridge left midpoint to zero under all operating conditions. The 350-Ω resistor ensures that A1 will find a stable operating point with 10 V of drive delivered to the bridge. This allows A2 to take a single-ended measurement, eliminating all common-mode voltage errors. LINEAR TECHNOLOGY, APPLICATION NOTE 43, P. 5.