J. Forster wrote:
You are picking very unimportant nits.
If there were a small noise spike from the opamp, it'd goose the pendulum
a tiny amount. That would be corrected on the next swing.
Heuristic analysis of this type is counter productive.
You are turning a trip to the corner store into an Apollo Moon Mission.
Reliability is paramount in a circuit that may be required to work for
decades.
BTW, since the =drive does not to be bipolar, one of the NPN and PNP
transistors can be deleted. They never turn on. So you are left with two
opamsa, =each with a simple emitter follower.
The original request was for a bipolar drive.
The lack of short circuit protection is poor design practice when
driving an external load.
-John
==============
Bruce
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