Ramptime current control is a new robust technique for directly controlling the inductor current in switched power converters. It is largely invariant with respect to circuit parameters and system voltages. Ramptime is a sliding mode method producing zero average current error (ZACE) in each switching period with a controlled switching frequency band. The converter transient response, ripple current and switching frequency band are discussed. Simulation and experimental results showing negligible low order harmonics are presented for a single phase AC-DC power converter.
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Borle et al. (2002) studied this question.
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