Mike, how is your circuit different from the one that MrAl originally posted? Other than some component value differences it would appear to be the same. Try adding a small extra load to the boosted output voltage and see if it still works.
It would appear that whether the op amp only circuit works or not depends upon the models in Spice. Looks like someone will have to build the circuit for proof of concept.
It would appear that whether the op amp only circuit works or not depends upon the models in Spice. Looks like someone will have to build the circuit for proof of concept.