Patent ID: 8294414
Filing Date: 2012-10-23
Classification: H02J

Abstract:
1. A recharging device with voltage detection for an alkaline primary cell, said recharging device comprising: an oscillating unit that generates a pulse signal from an input power to charge the alkaline primary cell; a detecting unit configured to be electrically coupled to the alkaline primary cell, and to detect a voltage of the alkaline primary cell and output a corresponding detection signal; and a control unit electrically coupled to said oscillating unit and said detecting unit, said control unit controlling said oscillating unit to operate in one of a first charge mode and a waiting mode based on the detection signal output by said detecting unit, wherein said oscillating unit outputs the pulse signal when operated in said first charge mode and discontinues output of the pulse signal when operated in said waiting mode, the pulse signal having two continuously alternating phases, including a charging phase during which the pulse signal has a higher voltage for charging the alkaline primary cell, and a detecting phase during which the pulse signal has a lower voltage such that charging of the alkaline primary cell is discontinued, said control unit controlling said oscillating unit to operate in said first charge mode when the voltage of the alkaline primary cell is in an effective voltage range, and to operate in said waiting mode when the voltage of the alkaline primary cell is outside said effective voltage range; wherein a duration of said charging phase of said first charge mode is 30 seconds, a duration of said detecting phase of said first charge mode is 10 seconds, and said detection signal output by said detecting unit is an average voltage of the alkaline primary cell during said detecting phase.