Dynamic voltage compensation circuit and method thereof
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United States of America Patent
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Sep 27, 2022
Grant Date -
May 6, 2021
app pub date -
Jul 3, 2020
filing date -
Nov 1, 2019
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Abstract
A dynamic voltage compensation circuit suitable for performing voltage compensation between an electronic device and a multimedia device, and includes a current detection unit, a calculation module and a voltage output unit. The current detection unit is configured to obtain the output current of the electronic device outputting the multimedia device from the bus power terminal. The calculation module is configured to receive the output current and an ideal reference voltage, execute a voltage compensation algorithm to calculate a predetermined output voltage based on the output current, the ideal reference voltage, and a compensation coefficient, and generate a control signal according to the predetermined output voltage. The voltage output unit is configured to receive a control signal, and is controlled by the control signal to generate a compensated output voltage and output it to a bus power terminal.
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