Electricity: battery or capacitor charging or discharging – Serially connected batteries or cells – With discharge of cells or batteries
Patent
1996-06-28
1998-04-07
Tso, Edward
Electricity: battery or capacitor charging or discharging
Serially connected batteries or cells
With discharge of cells or batteries
320 39, H01M 1046
Patent
active
057368333
ABSTRACT:
A circuit for charging a battery comprising a charging source, a transistor and a charge control device for switching the transistor. When saturated and switched on, the transistor permits flow of charge to the battery from the charging source. The charge control device senses when main power is lost and switches the transistor off to prevent discharge of the battery through the charging source. After the battery is charged the transistor provides a path of least resistance to bleed off unwanted charge from other sources thereby preventing overcharging of the battery. The circuit therefore charges a battery rapidly and prevents overcharging of the battery. The charge control device is operable from a constant supply voltage supplied by a main power source when available or from the charged battery to continue operation despite loss of main power.
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Bailey Wayne P.
Fishman Daniel N.
Symbios Logic Inc.
Tso Edward
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