POWER SUPPLY CONTROL AND CURRENT EMULATION
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United States of America Patent
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Issued Date -
Feb 4, 2016
app pub date -
Nov 19, 2014
filing date -
Jul 29, 2014
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Abstract
According to example configurations herein, a power supply control circuit includes an emulator circuit. The emulator circuit includes: i) a first input to receive a first input value, the first input value indicating a magnitude of an input voltage used by a power supply circuit to produce an output voltage to power a respective load, and ii) a second input to receive a second input value, the second input value indicating a magnitude of the output voltage produced by the power supply circuit. The current emulator circuit uses the magnitude of the input voltage and the magnitude of the output voltage to emulate current flowing through the inductor of the power supply circuit. The emulated current flow represents an actual current supplied by the inductor to the load. The power supply control circuit uses the emulated current flowing through the inductor to control the magnitude of the output voltage within a desired range.
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