Power supply apparatus with function of detecting...

Details Power supply apparatus with function of detecting... Power supply apparatus with function of detecting...

2006-03-09

2008-11-11

Ip, Paul (Department: 2837)

Electricity: electrical systems and devices

Safety and protection of systems and devices

Motor protective condition responsive circuits

C361S023000, C318S430000, C318S434000

Reexamination Certificate

active

07450355

ABSTRACT:
A current detector (60) samples a motor current (MCRT_A) from a controlling sensor and a motor current (MCRT_B) from a monitoring sensor, and holds respective motor current maximum values (MCRT_Amax, MCRT_Bmax) at each prescribed operation cycle. An abnormality determiner (62a) detects that the motor current maximum value (MCRT_Amax) is in GND short-circuiting range and that the current difference between the maximum values exceeds a prescribed threshold value at each of successive operation cycles, to thereby determine an abnormality of the controlling sensor. Then, the abnormality determiner (62a) generates a detect signal (DET) specifying the current sensor abnormality and outputs it to a relay driver (64) and an alarm (66). Relay driver (64) receives the detect signal (DET) and generates a signal (SE) to turn off a system relay. The alarm (66) generates a signal (AL) and outputs it to display means arranged outside a power supply apparatus.

REFERENCES:
patent: 5357181 (1994-10-01), Mutoh et al.
patent: 6593714 (2003-07-01), Nagayama
patent: 6914408 (2005-07-01), Sawada et al.
patent: 7091684 (2006-08-01), Kobayashi et al.
patent: 7372686 (2008-05-01), Ochiai
patent: 2002/0008492 (2002-01-01), Nagayama
patent: 0 901 217 (1999-03-01), None
patent: A 08-172721 (1996-07-01), None

Affiliated with

Also associated with

Rating

Power supply apparatus with function of detecting... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Power supply apparatus with function of detecting..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Power supply apparatus with function of detecting... will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4042849