Multi-Phase Synchronization and Parallel Power Converters
نویسندگان
چکیده
This review paper studies nonlinear dynamics of parallel dc–dc converters and its practical applications. First, we introduce a single dc–dc converter which is a building block of the parallel system. Using a simple model of piecewise constant vector field, we show that the converters exhibit rich bifurcation phenomena including chaos and complicated superstable periodic orbits. We then introduce paralleled converters using a switching rule based on the winner-take-all principle. The switching can realize multi-phase synchronization that is crucially important to realize current sharing with smaller ripple for the low-voltage highcurrent capabilities. Presenting simple test circuit, typical phenomena are confirmed experimentally.
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