Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Donald Cho Lam Yu0
Date of Patent
December 12, 2006
0Patent Application Number
107727140
Date Filed
February 5, 2004
0Patent Primary Examiner
Patent abstract
A method for charge control of a photoflash capacitor. The method includes detecting a voltage on the photoflash capacitor, asserting and then latching a recharge signal when the detected voltage is lower than a first reference voltage, de-asserting and then latching the recharge signal when the detected voltage exceeds a second reference voltage, charging the photoflash capacitor when the recharge signal is asserted, and providing a pin for connection of a resistive element which determines the first reference voltage.
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