INDUCTION RECHARGEABLE ELECTRONIC CANDLE SYSTEM
First Claim
Patent Images
1. In combination:
- (a) a plurality of artificial candles, each comprising a housing containing a rechargeable DC battery for energizing a LED light source, a transformer secondary winding and an AC to DC converter circuit coupled between the transformer winding and the DC battery; and
(b) a plurality of box-like trays, each having a top surface, a bottom surface and four mutually perpendicular side surfaces defining a hollow interior, a first side surface having a laterally projecting plug member and an opposed side having a socket for receiving the plug member of an adjacently positioned tray therein, each said tray supporting a plurality of said artificial candles at defined locations thereon, said plurality of trays including a transformer primary winding proximate each of said defined locations;
(c) means for applying a DC voltage to a string of such trays by having the plug member of one tray inserted into the socket of an adjacent tray and connecting the plug member of a first tray in the string to a DC voltage source; and
(d) a DC to AC converter in each said tray connected to receive said DC voltage and producing an AC output to the primary windings whereby an AC voltage is induced across the secondary winding of candles disposed at said defined locations, said AC to DC converter in each said candles thereby producing a DC current for recharging the DC battery in each such candles.
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Abstract
A large plurality of artificial, battery-operated, electronic candles are arranged to be simultaneously recharged upon placement on a series of interconnected charging trays that include a transformer primary winding at defined locations thereon. The primary windings are driven by an AC signal whose duty cycle is controlled by a pulse width modulator IC to induce a voltage across secondary windings contained within the candle housing. This induced signal is rectified to produce the battery charging current and the delivery of the charging current to the rechargeable batteries is controlled by a microprocessor IC.
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Citations
16 Claims
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1. In combination:
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(a) a plurality of artificial candles, each comprising a housing containing a rechargeable DC battery for energizing a LED light source, a transformer secondary winding and an AC to DC converter circuit coupled between the transformer winding and the DC battery; and (b) a plurality of box-like trays, each having a top surface, a bottom surface and four mutually perpendicular side surfaces defining a hollow interior, a first side surface having a laterally projecting plug member and an opposed side having a socket for receiving the plug member of an adjacently positioned tray therein, each said tray supporting a plurality of said artificial candles at defined locations thereon, said plurality of trays including a transformer primary winding proximate each of said defined locations; (c) means for applying a DC voltage to a string of such trays by having the plug member of one tray inserted into the socket of an adjacent tray and connecting the plug member of a first tray in the string to a DC voltage source; and (d) a DC to AC converter in each said tray connected to receive said DC voltage and producing an AC output to the primary windings whereby an AC voltage is induced across the secondary winding of candles disposed at said defined locations, said AC to DC converter in each said candles thereby producing a DC current for recharging the DC battery in each such candles. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16)
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Specification