Power management system and method for peripheral devices

摘要

A peripheral power management system includes a power monitor for determining a power consumption characteristic of a computing processor and a controller for generating a reference power signal based on the power consumption characteristic. The peripheral power management system also includes a power regulator control signal generator for generating a power regulator control signal based on the reference power signal. The power regulator control signal controls a peripheral device power regulator which regulates an electrical supply power of a peripheral device. In this way, the peripheral power management system controls regulation of the electrical supply power of the peripheral device based on the power consumption characteristic of the computing processor. In some embodiments, the peripheral power management system determines the power consumption characteristic of the computing processor by monitoring communication on a serial voltage identification bus.

主权项

1. A peripheral power management system comprising:
a power monitor configured to determine a power consumption characteristic of a computing processor; a controller coupled to the power monitor and configured to generate a reference power signal based on the power consumption characteristic of the computing processor; and a power regulator control signal generator coupled to the controller, the power regulator control signal generator configured to generate a power regulator control signal based on the reference power signal, the power regulator control signal for controlling a peripheral device power regulator, the peripheral device power regulator to reduce the power consumption of a peripheral device coupled to the peripheral device power regulator and to operate the peripheral device at the reduced power consumption in response to the power regulator control signal or the peripheral device power regulator to increase the power consumption of the peripheral device and to operate the peripheral device at the increased power consumption in response to the power regulator control signal.