Multicell battery pack bilateral power distribution unit with in

Details Multicell battery pack bilateral power distribution unit with in Multicell battery pack bilateral power distribution unit with in

1995-08-28

1997-08-12

Tso, Edward

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 15, 320 18, H01M 1046

Patent

active

056569157

ABSTRACT:
A power distribution unit (PDU) for series connected multicell battery packs which uses a common hardware platform for both charging and providing power to an external load. Using switching circuitry (2), and tap points (5a,5b,5c,5d,5e) individual access to cells (4a,4b,4c,4d) or groups of series connected cells is accomplished. Under control of microcontroller circuitry (1), series connected cell groups of varying sizes are selected and prioritized for connection to a common power bus (29),(30) at real-time speeds. The PDU uses these groups to maintain balance over cells with varying characteristics, adapt to varying charge sources and to produce a regulated output voltage during discharge.

REFERENCES:
patent: 5153496 (1992-10-01), LaForge
patent: 5206578 (1993-04-01), Nor
patent: 5218284 (1993-06-01), Burns et al.
patent: 5313152 (1994-05-01), Wozniak et al.
patent: 5498950 (1996-03-01), Ouwerkerk
patent: 5504415 (1996-04-01), Podrazhansky et al.
patent: 5539297 (1996-07-01), Fiebig

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