Inductive battery recharging system with peak voltage detection

Details Inductive battery recharging system with peak voltage detection Inductive battery recharging system with peak voltage detection

2007-04-24

2007-04-24

Tso, Edward H. (Department: 2838)

Electricity: battery or capacitor charging or discharging

Cell or battery charger structure

Charger inductively coupled to cell or battery

Reexamination Certificate

active

10949498

ABSTRACT:
A method is provided for inductively charging a rechargeable battery of a portable device in a vehicle via a primary circuit that includes a primary inductive coil, a secondary circuit that includes a secondary inductive coil, and a rectifying circuit electrically coupled to the rechargeable battery. A primary coil is energized with a supply voltage. A frequency of the supply voltage is varied. A peak voltage of the primary circuit is detected. The frequency of the supply voltage is adjusted to a respective frequency associated with the peak voltage.

REFERENCES:
patent: 5122729 (1992-06-01), Itoga et al.
patent: 6184651 (2001-02-01), Fernandez et al.
patent: 1022840 (2000-07-01), None
patent: 1408456 (2004-04-01), None
patent: 10174206 (1998-06-01), None
patent: WO 94/28560 (1994-12-01), None

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