ENHANCED PHASE CONTROL CIRCUIT AND METHOD FOR A MULTIPHASE POWER CONVERTER

A multiphase power converter has a plurality of phase circuits, each of which provides a phase current when being active. During single-phase operation of the multiphase power converter, an enhanced phase control circuit and method monitor the summation of the phase currents, and when the summation...

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Bibliographische Detailangaben
Hauptverfasser: WANG TING-HUNG, CHUNG SHANG-YING, HSU CHENGING, NIEN HUNG-SHOU
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A multiphase power converter has a plurality of phase circuits, each of which provides a phase current when being active. During single-phase operation of the multiphase power converter, an enhanced phase control circuit and method monitor the summation of the phase currents, and when the summation becomes higher than a threshold, switch the multiphase power converter to a higher power zone to increase the number of active phases. A high efficiency and high reliability multiphase power converter is thus accomplished.