Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
June 3, 2008
Patent Application Number
10882908
Date Filed
June 30, 2004
Patent Primary Examiner
Patent abstract
A charging apparatus and a charging current detecting circuit thereof are disclosed in which it is possible to implement an electric circuit with little voltage loss by using an operational amplifier of low cost. A detecting resistor is disposed at the power voltage side of the downstream side of a power supply. The charging apparatus further includes an auxiliary power means for generating an auxiliary voltage to supplement the voltage limited to the range of an input voltage of the operational amplifier.
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