high-voltage interface

Posted on May 6, 2012

The circuit uses fast transimpedance amps, `floated` at 70V. Two `virtual-zener` circuits step down the high-voltage signals for subsequent processing in a ground-referred differential-amplifier stage (Figure 1). The circuit drops exactly 65.58V dc with the component values shown, notwithstanding errors arising from op-amp offset voltages and resistor tolerances.

The op amp`s power-supply rails and output range, along with the voltage drop across R3, limit the output-voltage compliance. C1 bypasses R1. This bypass swamps the bandwidth-reducing effect of capacitance at the noninverting input, and it greatly r

Leave Comment

characters left:

Related Circuits

  • New Circuits



    Popular Circuits

    CDV700 Geiger Counter
    Video Camera switcher MAX454
    the monitoring systems of railway level crossing of mining area of Atmega128 one-chip computer and GPRS
    volume controller equalizer
    Water Tank Controller Circuit PCB
    8 function christmas lamp
    The Gentle Touch
    RF field detector circuit diagram
    60 Watt Audio Power Amplifier