Bridge Circuit With One Power Supply


Posted on Aug 20, 2012

For systems with only one power supply, two op amps act as instrumentation and buffer amps. The OPA111


Bridge Circuit With One Power Supply
Click here to download the full size of the above Circuit.

AM buffers the reference mode of the bridge and applies that voltage to the instrumentation amps ref terminal. Output is taken between the amplifier outputs to exclude the fixed output offset. The additional op amp creates a bridge error of 2, where IB=bias current of op amp and R is the resistance of one leg of the bridge.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Ham radio Communication
    74C164 8 bit shift register work as a heart for car LED light sequencer
    Battery charger circuit using L200
    Solar Based Multipurpose Charger Circuit
    model RC as USB Joystick
    VCXO Boards
    Based LMD18245 bipolar stepper motor control circuit diagram
    Thermal electromagnetic circuit long delay over-current release



    Top