Electricity: battery or capacitor charging or discharging – Cell or battery charger structure – Charger inductively coupled to cell or battery
Patent
1997-02-20
1999-03-30
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Cell or battery charger structure
Charger inductively coupled to cell or battery
307 66, 320DIG28, H02J 700
Patent
active
058893849
ABSTRACT:
A power supply device and system for providing power to a portable electronic device. A detachable device includes a rechargeable DC power source, a DC-to-AC inverter, and a primary transformer winding around a first core element. The portable electronic device includes multiple secondary transformer windings around a second core element. The detachable device cooperates with the portable electronic device so as to form a complete power supply circuit for providing AC and/or DC operating voltages to the portable electronic device.
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Hayes John J.
Irvin David R.
Ericsson Inc.
Shin K.
Wong Peter S.
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