Electric power conversion systems – Current conversion – With condition responsive means to control the output...
Patent
1992-12-23
1994-05-24
Sterrett, Jeffrey L.
Electric power conversion systems
Current conversion
With condition responsive means to control the output...
363 17, 363132, H02M 75387
Patent
active
053154983
ABSTRACT:
Disclosed is an apparatus for blanking the trailing edge of a sensed current signal taken from the leading leg of a full bridge voltage regulator. Switching elements in the arms of the full bridge voltage regulator cycle on and off in staggered phases under control of a pulse width modulation controller to provide zero voltage drop switching of the elements. With trailing edge blanking of the sensed current signal, a control waveform is generated for delivery to the pulse width modulation controller which mimics a sensed current signal taken from the lagging leg of the bridge. Such a current waveform exhibits a clear peak enhancing circuit stability thereby permitting use of leading leg current sensing to improve power supply efficiency.
REFERENCES:
patent: 3663949 (1972-05-01), Froeschle
patent: 3737755 (1973-06-01), Calkin et al.
patent: 3818318 (1974-06-01), Schott et al.
patent: 4475149 (1984-10-01), Gallios
patent: 4533836 (1985-08-01), Carpenter et al.
patent: 4710686 (1987-12-01), Guzik
patent: 4713740 (1987-12-01), Drabing
patent: 4758941 (1988-07-01), Felton et al.
patent: 4772996 (1988-09-01), Hanei et al.
patent: 4777578 (1988-10-01), Jahns
patent: 4937725 (1990-06-01), Dhyanchand et al.
patent: 5055762 (1991-10-01), Disser et al.
Bob Mammano et al., "Phase-Shifted PWM Control-A New Integrated Controller Eases The Design Of Efficient High-Frequency Bridge Power Switching", Unitrode IC Corporation, Merrimack, N.H. May 15, 1991.
Berrios Miguel A.
Covi Kevin R.
Dillon Andrew J.
International Business Machines - Corporation
O'Malley Paul W.
Scheer Michael J.
Sterrett Jeffrey L.
LandOfFree
Apparatus providing leading leg current sensing for control of f does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Apparatus providing leading leg current sensing for control of f, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus providing leading leg current sensing for control of f will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1977872