Re: voltage limting problem

On Wed, 14 May 2008 09:05:23 -0700 (PDT), john
<conphiloso@xxxxxxxxxxx> wrote:



Hi,

The opamps are in unity feed back configuration. They should put +/-1
volts on their outputs but they are outputing +/-15 volts.


John, the clamper was intended as an add-on circuit to your original
Voltage Controllrd Current Source. Your VCCS circuit is represented in
the clipper sketch by the current source symbol.

Without a controlled current, the op amps in the clipper will be
normally 'off', with the diodes reverse-biased. They will only begin
to function when your driver circuit induces an overvoltage at the
clipping node.

You should be aware that it is a bare-bones concept only. Speed,
overshoot and recovery of the circuit are not considered. The op amps
in the clipper must be capable of absorbing full current of the VCCS.

RL
.

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