Brushless DC motor drive apparatus

Details Brushless DC motor drive apparatus Brushless DC motor drive apparatus

2005-12-07

2008-03-25

Ro, Bentsu (Department: 2837)

Electricity: motive power systems

Limitation of motor load, current, torque or force

C318S430000, C318S254100, C318S721000, C318S724000, C361S030000

Reexamination Certificate

active

07348744

ABSTRACT:
A brushless DC motor drive apparatus for driving a rotor includes a drive circuit rotating the rotor, a current shutdown and auto-restart circuit coupled to the drive circuit, and a DC voltage comparison circuit coupled to the current shutdown and auto-restart circuit. The current shutdown and auto-restart circuit detects blockage of the rotor via the DC voltage comparison circuit and shuts off the power to the drive circuit accordingly.

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