A dual output buck-boost power converter operates with a single inductor
to achieve high efficiency with automatic or inherent load balancing.
Switches associated with the opposite polarity outputs are driven based
on feedback signals, with one feedback signal being a reference voltage
and another feedback signal being related to an opposite polarity output.
The opposite polarity feedback signal is provided to a comparator with a
reversed polarity to achieve a simple balanced control that maintains
polarity outputs. The power converter delivers power to each output with
each switching cycle and uses a single inductor to achieve high
efficiency performance.