System and method for increasing current monitor power telemetry accuracy

• US 9,547,354 B2
• Filed: 04/11/2013
• Issued: 01/17/2017
• 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): Mehmood, Jennifer
• Assistant Examiner(s): Jiang, Yong Hang
• Application Number:
  US13/861,224
• Publication Number:
  US 20140306831A1
• Time in Patent Office: 1,377 Days
• Field of Search: 340/870.02, 340/870.04, 340/870.05, 340/870.07, 340/870.16
• US Class Current: 1/1
• 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 current monitor; and

a node manager communicatively coupled to the current monitor;

wherein;

the current monitor is configured to;

obtain a set of load values; and

statistically analyze the set of load values to generate a run-time load value based on the set of load values;

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 node manager is configured to;

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

determine the one of the plurality of power modes in which the current monitor is to operate; and

communicate a parameter to the adjustable component to configure the current monitor to operate in the determined one of the plurality of power modes;

to determine the one of the plurality of power modes in which the current monitor is to operate, the node manager is configured to;

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

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, further comprising a sense element communicatively coupled with the current monitor, the sense element configured to measure a load value and communicate the load value to the current monitor to be statistically analyzed as part of the statistically analyzed set of load values.

3. The system of claim 2, wherein the statistically analyzed set of load values comprises an average of load values over a period of time.

4. The system of claim 1, wherein the node manager comprises a lookup table, the lookup table comprising the run-time load value and the component parameter.

5. The system of claim 1, wherein the adjustable component is an analog-to-digital converter.

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

receiving, by a node manager, a run-time load value from a current monitor communicatively coupled with the node manager, the current monitor configured to statistically analyze a set of load values to generate the run-time load value based on the set of load values, the current monitor further associated with an adjustable component for configuring the current monitor to operate in one of a plurality of power modes;

determining, by the node manager, that the run-time load value is within a first range or a second range, the second range being higher than the first range;

based on the run-time load value being within a first range, determining that the current monitor should operate in a first power mode, and

based on the run-time load value being within a second range, determining that the current monitor should 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; and

, in response;

adjusting, by the node manager, the adjustable component within the current monitor such that the current monitor transitions to the determined power mode.

7. The method of claim 6, wherein the current monitor is further communicatively coupled with a sense element configured to measure a load value and communicate the load value to the current monitor to be statistically analyzed as part of the statistically analyzed set of load values.

8. The method of claim 7, wherein the statistically analyzed set of load values comprises an average of load values over a period of time.

9. The method of claim 6, wherein determining the component parameter value associated with the run-time load value comprises determining the component parameter value from a lookup table, the lookup table comprising the run-time load value and the component parameter.

10. The method of claim 6, wherein the adjustable component is an analog-to-digital converter.