INDUCTION RECHARGEABLE ELECTRONIC CANDLE SYSTEM

摘要

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 1C 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 1C.

主权项

1. An electronic candle, comprising:
a housing; an LED light source positioned at least partially within the housing; a battery for energizing the LED light source; a microprocessor coupled to the LED light source and programmed to control illumination produced by the LED light source; and a sensor positioned inside the housing to detect a blow of air directed at the electronic candle, the sensor coupled to the microprocessor and including a two-stage electronic circuit that includes one or more transistors and one or more resistors configured to generate a signal in response to detection of the blow and to provide the signal to the processor.