System and method for increasing current monitor power telemetry accuracy

• US 10,095,304 B2
• Filed: 12/09/2016
• Issued: 10/09/2018
• Est. Priority Date: 04/11/2013
• Status: Active Grant

• Current Assignee: Dell Products LP (Dell Technologies Inc.)
• Original Assignee: Dell Products LP (Dell Technologies Inc.)
• Inventors: Das, Girish Prasad, Rahardjo, Johan
• Primary Examiner(s): Benlagsir, Amine
• Application Number:
  US15/373,968
• Publication Number:
  US 20170090550A1
• Time in Patent Office: 669 Days
• CPC Class Codes: G01R 15/09 Autoranging circuits
• CPC Class Codes: G06F 1/3206 Monitoring of events, devices or parameters that trigger a change in power modality
• CPC Class Codes: G06F 1/3287 by switching off individual functional units in the computer system
• CPC Class Codes: G06F 11/3058 Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations thermal management in cooling arrangements of a computing system G06F1/206

Abstract

Systems and method for increasing current monitor accuracy are disclosed. The systems and methods may include receiving a run-time load value from a current monitor, determining a component parameter value associated with the run-time load value, and communicating the component parameter value to the current monitor.

Claims

1. An information handling system for increasing current monitor accuracy, comprising:

a node manager communicatively coupled to a current monitor, wherein the node manager is configured to;

receive a run-time load value from the current monitor;

determine, responsive to the run-time load value being within a first range of run-time load values, that the current monitor is to operate in a first power mode, and

determine, responsive to the run-time load value being within a second range of run-time load values, the second range being higher than the first range, that the current monitor is to operate in a second power mode;

wherein;

the current monitor operates more accurately in the first power mode than in the second power mode; and

the current monitor operates across a broader current range in the second power mode than in the first power mode.

2. The system of claim 1, wherein:

the current monitor is configured to;

obtain a set of load values; and

statistically analyze the set of load values to generate the run-time load value.

3. The system of claim 2, wherein:

to statistically analyze the set of load values, the current monitor is configured to average a plurality of load values measured over a period of time.

4. The system of claim 2, further comprising:

a sense element communicatively coupled to the current monitor, wherein the sense element is configured to;

measure a load value; and

communicate the load value to the current monitor to be statistically analyzed as part of the set of load values.

5. The system of claim 1, wherein the run-time load value represents a range of load values.

6. The system of claim 1, wherein:

the current monitor is associated with an adjustable component for configuring the current monitor to operate in one of a plurality of power modes, the plurality of power modes including the first power mode and the second power mode; and

the node manager is configured to communicate a parameter to the adjustable component to configure the current monitor to operate in the determined one of the plurality of power modes.

7. The system of claim 1, wherein:

the node manager is configured to;

determine a component parameter value associated with the run-time load value; and

communicate the component parameter value to the current monitor.

8. The system of claim 7, wherein:

to determine the component parameter value associated with the run-time load value, the node manager is configured to obtain the component parameter value from a lookup table, the lookup table comprising the run-time load value and the component parameter value.

9. The system of claim 7, wherein the component parameter value represents an amplifier gain value.

10. The system of claim 1, wherein

the current monitor is associated with an adjustable component for configuring the current monitor to operate in one of a plurality of power modes, the plurality of power modes including the first power mode and the second power mode;

and

the adjustable component comprises an analog-to-digital converter.

11. A method for increasing current monitor accuracy, the method comprising:

receiving, by a node manager from a current monitor to which it is communicatively coupled, a run-time load value;

determining, by the node manager, that a given one of two ranges of run-time load values includes the run-time load value, a second one of the two ranges of run-time load values being higher than a first one of the two ranges of run-time load values;

determining, by the node manager dependent on the determination that the given one of the two ranges of run-time load values includes the run-time load value, that the current monitor is to operate in a given one of two power modes, the two power modes including;

a first power mode in which the current monitor operates more accurately than in a second power mode; and

the second power mode in which the current monitor operates across a broader current range than in the first power mode.

12. The method of claim 11, further comprising:

obtaining, by the current monitor, a set of load values; and

statistically analyzing, by the current monitor, the set of load values to generate the run-time load value.

13. The method of claim 12, wherein:

statistically analyzing the set of load values comprises averaging a plurality of load values measured over a period of time.

14. The method of claim 12, further comprising:

measuring, by a sense element communicatively coupled to the current monitor, a load value; and

communicating, to the current monitor by the sense element, the load value to be statistically analyzed as part of the set of load values.

15. The method of claim 11, wherein the run-time load value represents a range of load values.

16. The method of claim 11, further comprising:

communicating, by the node manager to an adjustable component associated with the current monitor, a parameter to configure the current monitor to operate in the given one of the two power modes.

17. The method of claim 16, wherein the adjustable component comprises an analog-to-digital converter.

18. The method of claim 11, further comprising:

determining, by the node manager, a component parameter value associated with the run-time load value; and

communicating the component parameter value to the current monitor.

19. The method of claim 18, wherein:

determining the component parameter value associated with the run-time load value includes obtaining the component parameter value from a lookup table, the lookup table comprising the run-time load value and the component parameter value.

20. The method of claim 18, wherein the component parameter value represents an amplifier gain value.