capacitance bridge

Discussion in 'The Projects Forum' started by soudabeh, Jul 19, 2011.

  1. soudabeh

    Thread Starter New Member

    Jul 4, 2011
    3
    0
    Hello,
    I want to simulate a weatstone bridge with capacitance in orcad. But ,it takes two errors & says that the nodes between two capacitance are floating.The power supply is vsin with frequency of 100MHz.
    Please help if you have information about it.
    thanks....
     
  2. CDRIVE

    Senior Member

    Jul 1, 2008
    2,223
    99
    Many (maybe all) spice simulators have trouble when no DC path is present at a node. Try shunting each cap in the bridge with a 1GΩ resistor. It won't effect your measurements but it will satisfy the simulator.
     
    soudabeh likes this.
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