Electricity: battery or capacitor charging or discharging – Means to identify cell or battery type
Reexamination Certificate
2005-11-29
2005-11-29
Tso, Edward H. (Department: 2838)
Electricity: battery or capacitor charging or discharging
Means to identify cell or battery type
Reexamination Certificate
active
06969970
ABSTRACT:
A battery charger with charging parameter values derived from communication with a battery pack to be charged. Communication is over a one-wire bus with battery pack transmissions in response to charger inquiries. The battery charger may be in the form an integrated circuit driving a power transistor or other controllable DC supply. A battery pack may contain a program with multiple charging currents and charging interval termination methods such as time, temperature rise, and incremental voltage polarity. A lack of communication may be invoke a default charging program or denial of access to the charger. The charger also communicates over a high-speed three-wire bus with an external computer for analysis of identification information acquired from the battery and for control of the charger.
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Dias Donald R.
Lee Robert D.
Dallas Semiconductor Corporation
Jenkens & Gilchrist
Tso Edward H.
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