DC-DC CONVERTER, SEMICONDUCTOR INTEGRATED CIRCUIT THAT CONTROLS POWER SUPPLY, AND POWER SUPPLY DEVICE
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United States of America Patent
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Issued Date -
Jun 8, 2023
app pub date -
Apr 23, 2021
filing date -
May 19, 2020
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Abstract
A DC-DC converter that converts a DC input voltage supplied from a DC power supply and that outputs a DC voltage with a different potential is shown. The DC-DC converter includes the following. A control circuit controls a switching element in accordance with a potential difference between a feedback voltage proportional to an output voltage and a predetermined reference voltage. A current supply circuit that causes a predetermined current to flow. A voltage correction circuit that corrects the reference voltage or the feedback voltage. The voltage correction circuit is configured to determine a voltage correction amount, based on information about a resistance on a load side input from outside when a current of the current supply circuit is output, and correct the reference voltage or the feedback voltage.
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