专利名称：Variable-frequency converter with constant
programmed delay
发明人：Richard A. Faulk申请号：US08/775558申请日：19961231公开号：US05745358A公开日：19980428
摘要：A variable-frequency variable-input-voltage switched-mode power converter, inwhich a voltage minimum on the primary switching transistor IS estimated as a fixed valuewhich is determined by the time constant of the reactances on the primary side of theconverter, and does not vary with the switching frequency. In the presently preferredembodiment, this fixed time-constant-determined delay is used by a secondary-sidecontrol subsystem to estimate zero-crossings of the current on the primary side, withoutusing any dissipative current sensing techniques.
申请人：COMPAQ COMPUTER CORPORATION
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