Device and method for controlling charging path of mobile terminal

• US 9,583,965 B2
• Filed: 02/14/2014
• Issued: 02/28/2017
• Est. Priority Date: 02/13/2013
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Park, Junghoon
• Primary Examiner(s): Aisaka, Bryce
• Application Number:
  US13/999,354
• Publication Number:
  US 20140225558A1
• Time in Patent Office: 1,110 Days
• Field of Search: 320/108
• US Class Current: 1/1
• CPC Class Codes: H02J 2207/40 adapted for charging from various sources, e.g. AC, DC or multivoltage
• CPC Class Codes: H02J 50/12 of the resonant type
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00712 the cycle being controlled or terminated in response to electric parameters
• CPC Class Codes: H02J 7/02 for charging batteries from ac mains by converters
• CPC Class Codes: Y02B 40/00 Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers

Abstract

A device and method for controlling a charging path of a mobile terminal are provided. The charging path control device of a mobile terminal includes a power supply unit touch screen uniting a battery. The charging path control device also includes a charging unit configured to charge the battery by wire from an external power source and charge the battery by wireless from the external power source. The charging path control device also includes a controller configured to control a charging path to one of a wire charging path, wireless charging path, and wired and wireless simultaneous charging path based on a charge efficiency level to perform charge through the charging unit.

Claims

1. A charging path control device of a mobile terminal, comprising:

a power supply unit comprising a battery;

a charging unit configured to charge the battery by wire from an external power source and charge the battery by wireless from the external power source; and

a controller configured to;

analyze a charge efficiency level based on at least one of a heat generation level and a charge speed, and

control a charging path to one of a wire charging path, wireless charging path, or wired and wireless simultaneous charging path based on the charge efficiency level to perform the charging unit,

wherein the controller is further configured to;

determine whether wired charge is available;

determine whether wireless charge is available when the wired charge is available;

change, when present charging amperage is smaller than preset charging amperage and wireless charge is available, the charging path so that wired charge and wireless charge are simultaneously performed through the charging unit;

determine that wired charge is available when the charge cable is connected to the mobile terminal; and

determine that wireless charge is available when the mobile terminal is positioned within a predetermined distance from a charge pad.

2. The charging path control device of claim 1, wherein the controller is configured to control the charging path using a switch as a charging path control.

3. A charging path control device of a mobile terminal, comprising:

a power supply unit comprising a battery;

a charging unit configured to charge the battery by wire from an external power source and charge the battery by wireless from the external power source; and

a controller configured to;

analyze a charge efficiency level based on at least one of a heat generation level and a charge speed, and

control a charging path to simultaneously perform a wired charge and a wireless charge through the charging unit,

wherein the controller is further configured to;

determine whether wired charge is available;

determine whether wireless charge is available when the wired charge is available;

change, when present charging amperage is smaller than preset charging amperage and wireless charge is available, the charging path so that wired charge and wireless charge are simultaneously performed through the charging unit;

determine that wired charge is available when the charge cable is connected to the mobile terminal; and

determine that wireless charge is available when the mobile terminal is positioned within a predetermined distance from a charge pad.

4. The charging path control device of claim 3, wherein the controller is configured to change the charging path to simultaneously perform the wired charge and the wireless charge through the charging unit, when both the wired charge and the wireless charge are available in a state in which one of the wired charge and the wireless charge is performed.

5. The charging path control device of claim 3, wherein the controller is configured to change the charging path to one of a wire charging path, wireless charging path, or wired and wireless simultaneous charging path based on the charge efficiency level.

6. The charging path control device of claim 3, wherein the controller is configured to change charging amperage of each of the wired charge and the wireless charge based on the charge efficiency level in a state in which the wired charge and the wireless charge are simultaneously performed.

7. A method of controlling a charging path of a mobile terminal, comprising:

performing one of a wired charge that charges a battery provided in the mobile terminal by wire from an external power source and a wireless charge that charges the battery by wireless from an external power source;

analyzing a charge efficiency level based on at least one of a heat generation level and a charge speed; and

changing a charging path such that the wired charge and the wireless charge are simultaneously performed, when both the wired charge and the wireless charge are available in a state one of the wired charge and the wireless charge is performed,

wherein the changing of a charging path comprises;

determining whether wired charge is available;

determining whether wireless charge is available when the wired charge is available;

changing, when present charging amperage is smaller than preset charging amperage and wireless charge is available, the charging path to simultaneously perform wired charge and wireless charge;

determining that wired charge is available when the charge cable is connected to the mobile terminal; and

determining that wireless charge is available when the mobile terminal is positioned within a predetermined distance from a charge pad.

8. The method of claim 7, further comprising changing the charging path to one of a wire charging path, wireless charging path, or wired and wireless simultaneous charging path based on the charge efficiency level.

9. The method of claim 7, further comprising changing charging amperage of each of the wired charge and the wireless charge based on the charge efficiency level in a state in which the wired charge and the wireless charge are simultaneously performed.