Electric power conversion systems – Current conversion – Using semiconductor-type converter
Patent
1996-05-24
1998-04-07
Wong, Peter S.
Electric power conversion systems
Current conversion
Using semiconductor-type converter
363 24, 363 55, H02M 7538
Patent
active
057372080
ABSTRACT:
An uninterruptable power supply module includes a DC power supply having an output for outputting a first DC voltage signal, a battery backup module in parallel connection to the output of the DC power supply and having an identical voltage level to that of the first DC voltage signal, boost converter means having an input coupled to the first DC voltage signal from the battery backup module for converting said first DC voltage signal to a second DC voltage signal, DC/AC conversion means having an input coupled to the second DC voltage signal from the boost converter means and an output for generating a first AC voltage signal in response to a variable duty cycle oscillation signal, pulse width modulator means powered by said battery backup module and having an output coupled to said DC/AC conversion means for generating said variable duty cycle oscillation signal, and shaping means having an input coupled to the first AC voltage signal from the DC/AC conversion means and an output for supplying a second AC voltage signal.
REFERENCES:
patent: 4728808 (1988-03-01), Bet-Esh et al.
patent: 4823247 (1989-04-01), Tamoto
patent: 5115205 (1992-05-01), Holmes, Jr.
patent: 5519306 (1996-05-01), Itoh et al.
Han Y. J.
Wong Peter S.
LandOfFree
Modular uninterruptable power supply system does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Modular uninterruptable power supply system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Modular uninterruptable power supply system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-19016