Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1996-07-26
1998-12-01
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
307 64, 323271, 323222, 323282, H02J 704, H02J 700, H01M 1044, G05F 140
Patent
active
058443991
ABSTRACT:
A battery charger control system and method for maximizing output power to a battery. This is achieved by ensuring operation at either the maximum allowable input current or the thermal limit imposed by the battery charger using an on-line controller. In the invention, the thermal limit is determined by the junction temperatures of the two main IGBT's. Because direct measurement of these temperatures is impractical, they must be calculated by a computer algorithm that uses various on-line measurements. Test results for a 8 kW battery charger indicate reduction in the bulk charging time from conventional battery chargers of about 26% when charging a set of NiFe batteries.
REFERENCES:
patent: 4024448 (1977-05-01), Christianson et al.
patent: 4536696 (1985-08-01), Ray
patent: 4578630 (1986-03-01), Grosch
patent: 4629965 (1986-12-01), Fallon et al.
patent: 4695784 (1987-09-01), Reynolds
patent: 4716353 (1987-12-01), Engelmann
patent: 4742290 (1988-05-01), Sutphin et al.
patent: 4964029 (1990-10-01), Severinsky et al.
patent: 5029266 (1991-07-01), Randolph
patent: 5043650 (1991-08-01), Bhagwat et al.
patent: 5049804 (1991-09-01), Hutchings
patent: 5097196 (1992-03-01), Schoneman
patent: 5150032 (1992-09-01), Ho
patent: 5168205 (1992-12-01), Kan et al.
patent: 5192905 (1993-03-01), Karlin et al.
patent: 5198743 (1993-03-01), McClure et al.
patent: 5202617 (1993-04-01), Nor
patent: 5204611 (1993-04-01), Nor et al.
patent: 5254932 (1993-10-01), Bittar et al.
patent: 5359280 (1994-10-01), Canter et al.
patent: 5371456 (1994-12-01), Brainard
patent: 5461263 (1995-10-01), Helfrich
patent: 5465011 (1995-11-01), Miller et al.
Shin K.
The University of Toledo
Wong Peter S.
LandOfFree
Battery charger control 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 Battery charger control system, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Battery charger control system will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2398399