Current-mode instantaneous state setting method and its application to an H-bridge inverter

We propose an extremely simple stabilization method for nonlinear circuits having inductor(s). The method is based on instantaneous and periodic opening of a switch, that causes reset of an inductor current to zero (or constant). As a typical stabilization object, we consider a current-mode H-bridge inverter. It is shown that our stabilization method can stabilize unstable periodic operation of the inverter with extremely rapid transient to a stabilized state. Using a simple test circuit, typical phenomena are confirmed experimentally.