Electric power conversion systems – Current conversion – Including automatic or integral protection means
Reexamination Certificate
2007-07-17
2009-11-17
Nguyen, Matthew V (Department: 2838)
Electric power conversion systems
Current conversion
Including automatic or integral protection means
C323S285000
Reexamination Certificate
active
07619908
ABSTRACT:
The system includes a current injection device in electrical communication with the switch mode power supply. The current injection device is positioned to alter the initial, non-zero load current when activated. A prognostic control is in communication with the current injection device, controlling activation of the current injection device. A frequency detector is positioned to receive an output signal from the switch mode power supply and is able to count cycles in a sinusoidal wave within the output signal. An output device is in communication with the frequency detector. The output device outputs a result of the counted cycles, which are indicative of damage to an a remaining useful life of the switch mode power supply.
REFERENCES:
patent: 4245289 (1981-01-01), Mineck et al.
patent: 4531065 (1985-07-01), Nakayama et al.
patent: 6011414 (2000-01-01), Majid et al.
patent: 6281673 (2001-08-01), Zoellick et al.
patent: 6703893 (2004-03-01), Isham
patent: 6712048 (2004-03-01), Aoki et al.
patent: 6873204 (2005-03-01), Matsuda
patent: 7154254 (2006-12-01), Bray
patent: 7173446 (2007-02-01), Isakharov et al.
Lahyani, et al, “Failure Prediction of Electrolytic Capacitors during Operation of a Switchmode Power Supply”, IEEE Transactions on Power Electronics, vol. 13, No. 6, pp. 1199-1207, Nov. 1998.
Hofmeister James P
Judkins Justin B
Hayes & Soloway P.C.
Nguyen Matthew V
Ridgetop Group, Inc.
LandOfFree
Prognostic health monitoring in switch-mode power supplies... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Prognostic health monitoring in switch-mode power supplies..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Prognostic health monitoring in switch-mode power supplies... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4100400