Motor driver

Details Motor driver Motor driver

2007-08-14

2007-08-14

Nguyen, Phung T. (Department: 2612)

Communications: electrical

Condition responsive indicating system

Specific condition

C340S635000, C324S551000

Reexamination Certificate

active

10905434

ABSTRACT:
A motor driver capable of detecting the insulation deterioration of a motor easily and inexpensively is disclosed. The voltage supplied from an AC power supply (1) is rectified by a first rectifying circuit (D1to D6) and smoothed by a capacitor (C) in a power supply unit (6). The output voltage of the power supply unit (6) is converted into an AC voltage of a frequency and a motor (M) is driven by a motor drive amplifier (8). Elements (R1,C2,R11,C21) are connected between at least one of the positive electrode (4) and the negative electrode (5) of the output line (4, 5) of the power supply unit (6) and the ground (G2,G4). An insulation deterioration circuit (10, 11, 12) detects at least one of the voltage between the elements and the current flowing through the elements.

REFERENCES:
patent: 4737775 (1988-04-01), Tokuda et al.
patent: 4766387 (1988-08-01), Browne et al.
patent: 5019760 (1991-05-01), Chu et al.
patent: 6087836 (2000-07-01), Divljakovic et al.
patent: 6593751 (2003-07-01), Takahashi
patent: 0 780 960 (1997-06-01), None
patent: 3-195393 (1991-08-01), None
patent: 10-210649 (1997-01-01), None
patent: 2001-141795 (1999-11-01), None
patent: 2002-267712 (2002-09-01), None
European Search Report.

Affiliated with

Also associated with

Rating

Motor driver does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Motor driver, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Motor driver will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3845037