Method and apparatus for fast battery charging using neural netw

Details Method and apparatus for fast battery charging using neural netw Method and apparatus for fast battery charging using neural netw

1994-09-08

1998-02-03

Tso, Edward

Electricity: battery or capacitor charging or discharging

Serially connected batteries or cells

With discharge of cells or batteries

320 35, 320 39, H01M 1046

Patent

active

057148660

ABSTRACT:
A method and apparatus for providing fast charging of secondary cells in an electronic device. The charging process is under the control of a microcontroller which contains a read-only-memory (ROM) in which is embedded code which determines the charging method. The charge method controls the charge provided to a battery back by a variable current source. An intelligent control scheme based on a neural network fuzzy logic methodology is used to optimize the charging current in response to measured characteristics of the battery.

REFERENCES:
patent: 5187425 (1993-02-01), Tanikawa
patent: 5416702 (1995-05-01), Kittagawa et al.
Yung et al., "A MicroController-based Battery Charger Using Neural-Fuzzy Technology" IEE 1994, Hong Kong.
E. Khan, "Neural Network Based Algorithms for Rule Evaluation & Defuzzification in Fuzzy Logic Design," of National Semiconductor Corporation, Embedded Systems Division, 8 pages in length.
E. Khan & P. Venkatapuram, "Neufuz: Neural Network Based Fuzzy Logic Design Algorithms," of National Semiconductor Corporation, Embedded Systems Division, FUZ-IEEE93, Mar. 28-Apr. 1, 1993, San Francisco, CA, 8 pages in length.
E. Khan & P. Venkatapuram, "Fuzzy Logic Design Algorithms Using Neural Net Based Learning," of National Semiconductor Corporation, Embedded Systems Division, Presented at the Embedded Systems Conference, Santa Clara, Sep. 1992, 7 pages in length.
J.A. Schofield, "Batteries keep up with portable electronics," Design News, Oct. 24, 1994, pp. 25-26.
G. Cummings, D. Brotto & J. Goodhart, "Charge batteries safely in 15 minutes by detecting voltage inflection points," EDN, Sep. 1, 1994, pp. 89-92 & 94.

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