Phase adjustment circuit, motor driving control circuit, and...

Details Phase adjustment circuit, motor driving control circuit, and... Phase adjustment circuit, motor driving control circuit, and...

2007-07-03

2007-07-03

Leykin, Rita (Department: 2837)

Electricity: motive power systems

Constant motor current, load and/or torque control

C318S434000, C318S254100, C318S132000, C318S434000, C318S808000

Reexamination Certificate

active

11064879

ABSTRACT:
A motor apparatus is constructed to compensate for a delay in operation of the motor apparatus, so that the efficiency is improved and noise is reduced over a broad motor rpm range by driving the motor at the optimum timing. The motor driving control circuit of the motor apparatus includes a phase adjustment circuit which inputs signals of the U phase, V phase and W phase output by rotational position signal amplifiers, and performs an adjustment for the respective signals so that the phases are arbitrarily advanced by a ratio corresponding to phase adjustment voltages, an automatic gain control circuit which inputs the output signals of this circuit and the gain of which is feedback-controlled according to the driving currents of the armature coils of the motor, an FG circuit which produces a periodic pulse train from the rotational position signals, and a frequency-voltage conversion circuit which performs a conversion to a voltage corresponding to the frequency of the pulse train, and outputs the converted voltage as a phase adjustment voltage.

REFERENCES:
patent: 4629959 (1986-12-01), Okuyama et al.
patent: 5723957 (1998-03-01), Ishikawa
patent: 6091216 (2000-07-01), Takahashi et al.
patent: 6710572 (2004-03-01), Okubo
patent: 6969962 (2005-11-01), Oe
patent: 2002-084772 (2002-03-01), None
patent: 2003-111481 (2003-04-01), None

Affiliated with

Also associated with

Rating

Phase adjustment circuit, motor driving control circuit, and... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Phase adjustment circuit, motor driving control circuit, and..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Phase adjustment circuit, motor driving control circuit, and... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3819754