Abstract: In various examples, a voltage monitor may determine whether the voltage supplied to at least one component of a computing system is safe using two sets of thresholds—e.g., a high-frequency over-voltage (OV) threshold, a high-frequency under-voltage (UV) threshold, a low-frequency OV threshold, and a low-frequency UV threshold. A high-frequency voltage error detector may compare the supplied or input voltage to the high-frequency OV and UV thresholds and a low-frequency voltage error detector that may filter the supplied voltage to remove or reduce noise and then may compare the filtered voltage to the low-frequency OV and UV thresholds. Upon detecting a voltage error, a safety monitor may cause a change to an operating state of the at least one component.

Abstract: A power subsystem is configured to manage the maximum power usage of a computer subsystem. A power detector determines when power usage approaches the maximum capability of the power supply. The power detector generates a signal that corresponds to power usage. A controller then applies the signal to the system voltage regulator as a secondary regulation function such that the output voltage is reduced in a manner that supports maximum operating voltage while limiting power usage to within the capability of the power supply. The controller may configure the signal to implement the secondary regulation function as a modification of the feedback voltage, the reference voltage, or the current feedback of the regulator. As a result the subsystem causes the computer subsystem to operate at an optimum point on the voltage-current curve of the power supply.

Abstract: A power subsystem is configured to manage the maximum power usage of a computer subsystem. A power detector determines when power usage approaches the maximum capability of the power supply. The power detector generates a signal that corresponds to power usage. A controller then applies the signal to the system voltage regulator as a secondary regulation function such that the output voltage is reduced in a manner that supports maximum operating voltage while limiting power usage to within the capability of the power supply. The controller may configure the signal to implement the secondary regulation function as a modification of the feedback voltage, the reference voltage, or the current feedback of the regulator. As a result the subsystem causes the computer subsystem to operate at an optimum point on the voltage-current curve of the power supply.