Auto correction driving device and wireless charger driving system using the same
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United States of America Patent
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Jul 25, 2017
Grant Date -
Jan 14, 2016
app pub date -
Sep 11, 2014
filing date -
Jul 10, 2014
priority date (Note) -
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Abstract
A driving device with correction function is provided herein and utilizes a sensing resistor to detect the variation in an operation amplifier. A signal generated by an offset voltage correction circuit is fed back to the operation amplifier and the offset voltage of the abnormal input in the operation amplifier is corrected to be zero so as to keep the operation amplifier under the best performance condition. The driving device implements in the wireless charger driving system can enhance the accuracy of the current value and can achieve good output performance and better system stability.
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