Electricity: battery or capacitor charging or discharging – Cell or battery charger structure – Charger inductively coupled to cell or battery
Patent
1998-09-18
2000-02-22
Wong, Peter S.
Electricity: battery or capacitor charging or discharging
Cell or battery charger structure
Charger inductively coupled to cell or battery
324654, 324657, 363 22, H02J 700, H02M 3335, G01R 2728
Patent
active
060284137
ABSTRACT:
A device for charging batteries is comprised of a mobile electrical device MD and a charging unit CU and inductively transmits electrical power by means of a alternating magnetic field from at least one primary winding W1, W2 to at least one secondary winding W3, W4 in the mobile device MD. According to the invention, the alternating magnetic field is generated by a self-oscillating push-pull oscillator which contains switches Q1, Q2 that are reciprocally connected with positive feedback and in each push-pull branch, contains a resonance circuit with the effective inductance of at least one primary winding W1 or W2 and with a circuit capacitance C1, C3 or C2, C4, wherein the primary windings W1 and W2 in the charging unit CU are disposed spatially separate from each other so that each generates a magnetic alternating field in a different spatial region and the secondary windings W3, W4 in the mobile device are disposed so that each spatial region is equally loaded.
REFERENCES:
patent: 5654621 (1997-08-01), Seelig
patent: 5923544 (1999-07-01), Urano
Lucking, Werner: Who steht die Leistungselektronik Heute? In: Technische Rundschau 14/85, S. 100-105.
Tietze, U. Schenk, Ch. Halbleiter-Schaltungs-technik, Springer-Verlag, Berlin U.A. 1985 7. Aufl., S.446-447.
JP Patent Abstracts of Japan: 60-70973 A., E-338, Aug. 24, 1985, vol. 9, No. 208; 0631.
Perdix Oy
Toatley , Jr. Gregory J.
Wong Peter S.
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