Method for controlling charge for improving receive sensitivity and electronic device for the same

Patent metadata

Field	Value
Publication number	US-10536021-B2
Application number	US-201715494722-A
Country	US
Kind code	B2
Filing date	Apr 24, 2017
Priority date	May 27, 2016
Publication date	Jan 14, 2020
Grant date	Jan 14, 2020

Abstract

An electronic device and a method thereof are provided. The electronic device includes a memory, a battery, a charging circuit for charging the battery using current supplied from a power supply device, a slew rate variable circuit electrically connected to the charging circuit, and a processor electrically connected to the memory, the battery, the charging circuit, and the slew rate variable circuit. The processor is configured to control the charging circuit to control the charging of the battery, to monitor a state of the electronic device during battery charging, and to control the slew rate variable circuit based on the state of the electronic device to change a slew rate related to the battery charging.

First claim

What is claimed is:

1. An electronic device comprising:
a memory configured to store instructions;
a communication circuit;
a battery;
a charging circuit configured to charge the battery using a current supplied from an external device;
a slew rate variable circuit electrically connected to the charging circuit; and
a processor electrically connected to the memory, the communication circuit, the battery, the charging circuit, and the slew rate variable circuit, wherein the processor is configured to execute the stored instructions to:
charge the battery using the charging circuit, based on a first slew rate;
while charging the battery based on the first slew rate, receive a signal using the communication circuit;
in response to receiving the signal, identify a reception quality of the signal, while charging the battery based on the first slew rate;
in response to identification of the reception quality, identify that the reception quality of the signal is outside of a designated range; and
in response to the identification that the reception quality of the signal is out of the designated range, control the slew rate variable circuit to change the first slew rate to a second slew rate, and charge the battery using the charging circuit, based on the second slew rate.

2. The electronic device of claim 1 , further comprising a Power Management Integrated Circuit (PMIC), wherein the processor is configured to change the first slew rate to adjust current provided to the battery or the PMIC.

3. The electronic device of claim 1 , wherein the slew rate variable circuit is configured to be included inside the charging circuit.

4. The electronic device of claim 1 , wherein the slew rate variable circuit comprises a voltage regulator circuit or a snubber circuit.

5. The electronic device of claim 1 , wherein the reception quality indicates Received signal strength indicator (RSSI).

6. The electronic device of claim 1 , wherein the second slew rate is less than the first slew rate.

7. The electronic device of claim 1 , wherein the processor is configured to execute the stored instructions to:
control the slew rate variable circuit to change the first slew rate to a second slew rate by decreasing a current to be inputted the battery.

8. The electronic device of claim 1 , wherein the processor is configured to execute the stored instructions to:
control the slew rate variable circuit to change the first slew rate to another slew rate, based on a temperature of the electronic device.

9. The electronic device of claim 1 , wherein the processor is configured to execute the stored instructions to:
determine whether the communication circuit is in use for receiving a voice signal from another external device or not; and
control the slew rate variable circuit to change the first slew rate to another slew rate, based on the determination that the communication circuit is in use for receiving the voice signal.

10. The electronic device of claim 1 , wherein the processor is configured to execute the stored instructions to:
control the slew rate variable circuit to change the first slew rate to another slew rate, based on battery charging level being outside of a reference charging level.

11. A method of operating an electronic device, the method comprising:
charging a battery of the electronic device using a current from an external device, based on a first slew rate;
while charging the battery based on the first slew rate, receiving a signal using a communication circuit of the electronic device;
in response to receiving the signal, identifying a reception quality of the signal, while charging the battery based on the first slew rate;
in response to identification of the reception quality, identify that the reception quality of the signal is outside of a designated range; and
in response to the identification that the reception quality of the signal is outside of the designated range, changing the first slew rate to a second slew rate, and charge the battery using the charging circuit, based on the second slew rate.

12. The method of claim 11 , wherein the reception quality indicates Received signal strength indicator (RSSI).

13. The method of claim 11 , wherein the changing of the first slew rate further comprises:
changing the first slew rate to a second slew rate by decreasing a current to be inputted the battery.

14. The method of claim 11 , further comprising:
changing the first slew rate to another slew rate, based on a temperature of the electronic device.

15. The method of claim 11 , further comprising:
determining whether the communication circuit is in use for receiving a voice signal from another external device or not; and
changing the first slew rate to another slew rate, based on the determination that the communication circuit is in use for receiving the voice signal.

16. The method of claim 11 , further comprising:
changing the first slew rate to another slew rate, based on battery charging level being outside of a reference charging level.

17. The method of claim 11 , wherein the second slew rate is less than the first slew rate.

Assignees

• Samsung Electronics Co Ltd

Inventors

• Jung Ku-Chul
• Ryu Sanghyun
• Park Chulwoo
• Lee Kwangsub

Classifications

• H02J7/971

  the charge cycle being controlled or terminated in response to non-electric parameters · CPC title

• H02J7/965

  obtained with the battery disconnected from the charge or discharge circuit · CPC title

• H02J7/947

  in response to integrated charge or discharge current · CPC title

• H02J7/975 Primary

  in response to temperature · CPC title

• H04B1/1607

  Supply circuits (converters H02M; filters therefor H02M1/14; voltage stabilisers G05F1/46) · CPC title