Electronic device, method, and computer readable medium having instructions capable of automatically measuring parameter(s) associated with battery cell

Patent metadata

Field	Value
Publication number	US-10114077-B2
Application number	US-201514597205-A
Country	US
Kind code	B2
Filing date	Jan 14, 2015
Priority date	Feb 21, 2014
Publication date	Oct 30, 2018
Grant date	Oct 30, 2018

Abstract

A method applied into an electronic device and capable of automatically measuring at least one parameter includes: launching an automatic program/application on the electronic device; and using the automatic program/application to measure the at least one parameter that is at least associated with a battery cell connected to and used for providing power to the electronic device.

First claim

What is claimed is:

1. A method applied into an electronic device and capable of automatically measuring at least one parameter, comprising:
launching an automatic program/application on the electronic device;
using the automatic program/application to measure the at least one parameter that is at least associated with the battery cell connected to and used for providing power to the electronic device; and
performing power throttling of the electronic device to determine a power budget based on the at least one parameter that is at least associated with the battery cell.

2. The method of claim 1 , wherein the step of using the automatic program/application to measure the at least one parameter comprises:
using the automatic program/application to measure at least one of an alternating current (AC) resistance, a direct current (DC) resistance, an internal voltage level, and a battery capacity those are at least associated with the battery cell.

3. The method of claim 2 , wherein the AC resistance and the DC resistance are further associated with a trace connected between the battery cell and the electronic device.

4. The method of claim 1 , wherein the electronic device is one of a mobile device, a mobile phone, a personal digital assistant (PDA) device, a laptop, and a personal computer.

5. The method of claim 1 , wherein the at least one parameter comprises an AC resistance, and the step of using the automatic program/application to measure the at least one parameter comprises:
measuring a first set of voltage and current for the battery cell;
generating a current pulse change on the battery cell; and
measuring a second set of voltage and current for the battery cell after the current pulse change has been generated; and
calculating the AC resistance for the battery cell according to the first set of current and voltage and the second set of current and voltage.

6. The method of claim 5 , wherein the step of generating the current pulse change on the battery cell comprises:
enabling at least one of a dummy load, a normal load, and a charging operation to generate the current pulse change.

7. The method of claim 1 , wherein the at least one parameter comprises a DC resistance, and the step of using the automatic program/application to measure the at least one parameter comprises:
discharging the battery cell by a specific discharging current for a second time period;
measuring a first voltage level for the battery cell after the second time period;
waiting for a first time period after the second time period; and
measuring a second voltage level for the battery cell after the first time period;
deriving a DC resistance for the battery cell according to the first voltage level, the specific discharging current, and the second voltage level.

8. An electronic device capable of automatically measuring at least one parameter, comprising:
a software module, for launching an automatic program/application on the electronic device; and
a processing circuit, for using the automatic program/application to measure the at least one parameter that is at least associated with a battery cell connected to and used for providing power to the electronic device, and for performing power throttling of the electronic device to determine a power budget based on the at least one parameter that is at least associated with the battery cell.

9. The electronic device of claim 8 , wherein the processing circuit is arranged to use the automatic program/application to measure at least one of an alternating current (AC) resistance, a direct current (DC) resistance, an internal voltage level, and a battery capacity that are at least associated with the battery cell.

10. The electronic device of claim 9 , wherein the AC resistance and the DC resistance are further associated with a trace connected between the battery cell and the electronic device.

11. The electronic device of claim 8 , wherein the electronic device is one of a mobile device, a mobile phone, a personal digital assistant (PDA) device, a laptop, and a personal computer.

12. The electronic device of claim 8 , wherein the at least one parameter comprises an AC resistance, and the processing circuit is arranged for:
measuring a first set of voltage and current for the battery cell;
generating a current pulse change on the battery cell; and
measuring a second set of voltage and current for the battery cell after the current pulse change has been generated; and
calculating the AC resistance for the battery cell according to the first set of current and voltage and the second set of current and voltage.

13. The electronic device of claim 12 , wherein the processing circuit is arranged for enabling at least one of a dummy load, a normal load, and a charging operation to generate the current pulse change.

14. The electronic device of claim 8 , wherein the at least one parameter comprises a DC resistance, and the processing circuit is arranged for:
discharging the battery cell by a specific discharging current for a second time period;
measuring a first voltage level for the battery cell after the second time period;
waiting for a first time period after the second time period; and
measuring a second voltage level for the battery cell after the first time period;
deriving a DC resistance for the battery cell according to the first voltage level, the specific discharging current, and the second voltage level.

15. A non-transitory computer readable medium comprising multiple instructions upon executing these instructions stored in a computer readable device, upon executing these instructions, a computer performing the following steps:
launching an automatic program/application on the electronic device;
using the automatic program/application to measure the at least one parameter that is at least associated with a battery cell connected to and used for providing power to the electronic device; and
performing power throttling of the electronic device to determine a power budget based on the at least one parameter that is at least associated with the battery cell.

16. The non-transitory computer readable medium of claim 15 , wherein the at least one parameter comprises an AC resistance, and the step of using the automatic program/application to measure the at least one parameter comprises:
measuring a first set of voltage and current for the battery cell;
generating a current pulse change on the battery cell; and
measuring a second set of voltage and current for the battery cell after the current pulse change has been generated; and
calculating the AC resistance for the battery cell according to the first set of current and voltage and the second set of current and voltage.

17. The non-transitory computer readable medium of claim 16 , wherein the step of generating the current pulse change on the battery cell comprises:
enabling at least one of a dummy load, a normal load, and a charging operation to generate the current pulse change.

18. The non-transitory computer readable medium of claim 15 , wherein the at least one parameter comprises a DC resistance, and the step of using the automatic program/application to measure the at least one parameter comprises:
discharging the battery cell by a specific discharging current for a second time period;
measuring a first voltage level for the battery cell after the second time period;
waiting for a first time period after the second time period; and
measuring a second voltage level for the battery cell after the first time period;
deriving a

Assignees

• Mediatek Inc

Inventors

• Wu Jui-Chi
• Lee Chi-Ming

Classifications

• G01R31/385

  Arrangements for measuring battery or accumulator variables (for monitoring G01R31/382) · CPC title

• G01R31/389 Primary

  Measuring internal impedance, internal conductance or related variables · CPC title

• G01R31/3842

  combining voltage and current measurements · CPC title

• G01R31/3624

  Physics · mapped topic

• G01R31/3627

  Physics · mapped topic