On Fri, 25 Nov 2005 20:59:12 GMT, Ignoramus29530
wrote:

I believe the most effective method of inverting after a large
inductance is to short the current flow during the change of phase.

This is most simply achieved by turning all the bridge switches on; by
enforcing a drive overlap on the phase switch drive circuit.

There will be an overshoot of voltage as the arc has to be
re-established on each switching cycle, but there is no need to absorb
energy or clamp this voltage, until the load is removed completely.
When this happens, you'd best short the output and turn off the
source.

RL