Brushless DC motor coupled directly to AC source and...

Details Brushless DC motor coupled directly to AC source and... Brushless DC motor coupled directly to AC source and...

Filed on

2007-08-28

Date issued

2007-08-28

Examiner

Ro, Bentsu (Department: 2837)

Patent Class

Electricity: motive power systems

SubClass

Switched reluctance motor commutation control

Other Related Categories

C318S459000, C318S504000

Type

Reexamination Certificate

Status

active

Patent number

10568123

Description

ABSTRACT:
A brushless DC motor is disclosed, in which a commercial AC source is full-wave rectified by a rectifier and then converted into a generally flat and low DC voltage not more than 45V by a DC voltage converter. The low DC voltage is applied in a full-wave driving method to a stator coil via an inverter circuit formed of switching elements in a bridge configuration. This structure allows obtaining the brushless DC motor coupled directly to the AC source, and the torque ripples and uneven rotation of the motor are suppressed.

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patent: 2002-010609 (2002-01-01), None
patent: 2003-284307 (2003-10-01), None

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