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Class Information
Number: 320/DIG.27
Name: Electricity: battery or capacitor charging or discharging > Transformerless

Patents under this class:

Patent Number Title Of Patent Date Issued
5694022 Variable pulse recharging battery pack Dec. 2, 1997
5646505 Method of charging a battery using asymmetrical current Jul. 8, 1997
5477128 Automatic charging apparatus Dec. 19, 1995
4853607 Non-isolated thermally responsive battery charger Aug. 1, 1989
4716352 Charging base for a battery-powered appliance Dec. 29, 1987
4622507 Integrated battery and recharger Nov. 11, 1986
4591778 Current pulse producing circuit May. 27, 1986
4531084 Power supply with current regulating circuit Jul. 23, 1985
4482856 Battery charger Nov. 13, 1984
4236107 Secondary cell charging system Nov. 25, 1980
3943423 Battery charging circuit Mar. 9, 1976

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