Method for sensing the back electromotive force induced in...

Details Method for sensing the back electromotive force induced in... Method for sensing the back electromotive force induced in...

2007-05-08

2007-05-08

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Automatic and/or with time-delay means

Terminal voltage or counter-electromotive force of...

C360S075000

Reexamination Certificate

active

11381432

ABSTRACT:
A method for sensing a back electromotive force induced in a winding of a voice coil electro-mechanical actuator controlled in a discontinuous mode by alternating conduction phases to off-phases includes sensing voltage at terminals of the winding during an off-phase The winding is driven during a conduction phase immediately preceding the off-phase to invert, during a final portion of the conduction phase before entering an off-phase, a direction of flow of the current through the winding.

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