DC-DC converter, semiconductor device, and electronic device
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United States of America Patent
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Jan 5, 2016
Grant Date -
Sep 3, 2015
app pub date -
Feb 26, 2015
filing date -
Feb 28, 2014
priority date (Note) -
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Abstract
A DC-DC converter with improved voltage conversion efficiency is provided. The DC-DC converter includes a first circuit configured to generate a first signal containing data on current flowing through a load, a second circuit configured to amplify the first signal, a third circuit configured to generate a second signal containing data on voltage applied to the load, a fourth circuit configured to hold the second signal, a fifth circuit configured to amplify the second signal held by the fourth circuit, a sixth circuit configured to correct a difference in electrical characteristics between the second circuit and the fifth circuit, a seventh circuit configured to convert a first voltage to a second voltage supplied to the load, and an eighth circuit configured to control a level of the second voltage generated by the seventh circuit in accordance with either the amplified first signal or the amplified second signal.
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