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Power supply method and electronic device using same

A technology of electronic devices and power management devices, which is applied in the direction of circuit devices, DC network circuit devices, measuring devices, etc., and can solve the problems of increasing the current consumption range, changing, increasing, etc.

Pending Publication Date: 2022-03-18
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, for a display device, the increase in the resolution and scan rate of the display leads to a continuous increase in the maximum value of the current consumption in the display driving circuit, thereby increasing the range of current consumption
In addition, the current consumption in the display driving circuit may change in real time depending on various reasons such as the characteristics of the image data to be processed and the operation mode of the display device.

Method used

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  • Power supply method and electronic device using same
  • Power supply method and electronic device using same
  • Power supply method and electronic device using same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] figure 1 is a block diagram of the electronic device 10 according to the embodiment.

[0029] refer to figure 1 , the electronic device 10 may include a power management device 100 , a power module 200 and a system load 300 . The electronic device 10 may include a smartphone, a tablet personal computer (PC), a portable multimedia player (PMP), a camera, a wearable device, a television, a digital video disk (DVD) player, a refrigerator, an air conditioner, an air purifier, a set-top box , robots, drones, various medical devices, navigation devices, GPS receivers, devices for vehicles, furniture, various measuring instruments, etc.

[0030] The power management device 100 may supply a plurality of input voltages (eg, a first input voltage VIN1 and a second input voltage VIN2 ) to the power module 200 . The power management device 100 may be realized by a power management integrated circuit (PMIC).

[0031] The power module 200 may receive at least one of the first inp...

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PUM

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Abstract

A power supply method and an electronic device using the same are provided. The electronic device includes: a power management device configured to supply a plurality of input voltages; a power supply module configured to generate an output voltage using at least one of the plurality of input voltages, and output the generated output voltage; and a system load configured to operate by receiving an output voltage, in which the power module includes: a first power module configured to receive a first input voltage from the power management device and to generate a first output current using the first input voltage; and a second power module configured to receive a second input voltage from the power management device, and generate a second output current using the second input voltage based on the first input voltage being lower than the first reference voltage.

Description

[0001] This application is based on and claims priority to Korean Patent Application No. 10-2020-0120037 filed with the Korean Intellectual Property Office on September 17, 2020, the disclosure of which is hereby incorporated by reference in its entirety. technical field [0002] The disclosure relates to a power supply method and an electronic device using the power supply method, and more particularly, to a power supply method of supplying an additional current by using another voltage source when current consumption increases while supplying current by using one voltage source, And an electronic device using the power supply method. Background technique [0003] Recently, since one electronic device can perform various operations, the range of current consumption of electronic devices has increased. For example, for a display device, an increase in the resolution and scan rate of the display leads to a continuous increase in the maximum value of current consumption in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H02J1/10G09G3/20
CPCH02J1/10H02J1/106H02J1/109G09G3/20G09G2330/021G05F1/66G05F1/10G05F1/563G05F1/575G09G2330/028G09G3/2092G09G3/3696G05F1/565G06F1/3203G01R19/165G06F1/263
Inventor 李东烈徐东旭
Owner SAMSUNG ELECTRONICS CO LTD