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Robert Proctor, Kevin P King, Yashvant Jani: Back electro-motive force (BEMF) commutation and speed control of a three-phase brushless DC (BLDC) motor. Renesas Electronics America, Squire Sanders & Dempsey L, September 14, 2010: US07795828 (1 worldwide citation)

A DC motor comprises a stator having at least three windings coupled to a neutral point; a first pair of upper and lower switches for driving a first winding of the at least three windings to a first voltage or in tristate; a second pair of upper and lower switches for driving a second winding of th ...


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Robert Proctor, Kevin P King, Yashvant Jani: Back Electro-Motive Force (BEMF) Commutation and Speed Control of a Three-Phase Brushless DC (BLDC) Motor. Renesas Technology America, Squire Sanders & Dempsey, September 17, 2009: US20090230905-A1

A DC motor comprises a stator having at least three windings coupled to a neutral point; a first pair of upper and lower switches for driving a first winding of the at least three windings to a first voltage or in tristate; a second pair of upper and lower switches for driving a second winding of th ...