POWER SUPPLY CONTROL AND CURRENT EMULATION

摘要

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.

主权项

1. An apparatus comprising:
an emulator circuit, the emulator circuit including: 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, 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; and the current emulator circuit using the magnitude of the input voltage and the magnitude of the output voltage to emulate current flowing through an inductor of the power supply circuit, the emulated current flow representing an actual current supplied by the inductor to the load.