CHARGING DEVICE AND CHARGING SYSTEM HAVING SAME

• US 20100327802A1
• Filed: 08/19/2009
• Published: 12/30/2010
• Est. Priority Date: 06/29/2009
• Status: Abandoned Application

• Current Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Original Assignee: Hong Fu Jin Precision Industry (Shenzhen) Co., Ltd. (Hon Hai Precision Industry Co., Ltd.), Hon Hai Precision Industry Co., Ltd.
• Inventors: SIP, KIM-YEUNG
• Application Number:
  US12/543,513
• Publication Number:
  US 20100327802A1
• Time in Patent Office: Days
• US Class Current: 320/108
• CPC Class Codes: H02J 50/10 using inductive coupling
• CPC Class Codes: H02J 50/402 the two or more transmitting or the two or more receiving devices being integrated in the same unit, e.g. power mats with several coils or antennas with several sub-antennas
• CPC Class Codes: H02J 50/90 involving detection or optimisation of position, e.g. alignment
• CPC Class Codes: H02J 7/0042 characterised by the mechanical construction

Abstract

A charging device includes a charging platform, a number of first electromagnetic induction devices, a first microprocessor, and a first current processing module. The first electromagnetic induction devices are disposed on the charging platform. The first microprocessor is configured for activating the first electromagnetic induction devices and identifying the first electromagnetic induction devices that generated effective differential signals. The first current processing module is configured for inputting an alternating current to the first electromagnetic induction devices selected by the first microprocessor.

Claims

1. A charging device, comprising:

a charging platform;

a plurality of first electromagnetic induction devices disposed on the charging platform;

a first microprocessor configured for activating the first electromagnetic induction devices and identifying the first electromagnetic induction devices that generated effective differential signals; and

a first current processing module configured for inputting an alternating current to the first electromagnetic induction devices identified by the first microprocessor.

2. The charging device in claim 1, wherein the charging platform comprises an upper surface and a side surface, and defines a plurality of receiving holes to receive the first electromagnetic induction devices and an electrical socket to connect to a power source.

3. The charging device in claim 1, wherein the plurality of first electromagnetic induction devices are arranged in lines and rows;

each first electromagnetic induction device comprises an inductor and a differential unit, the inductor comprises a first output terminal and a second output terminal, and the differential unit comprises a first input terminal, a second input terminal, a third output terminal, and a gate terminal;

the first input terminal is connected to the first output terminal, the second input terminal is connected to the second output terminal, the gate terminals in one line are connected to a gate line, the third output terminals in one row are connected to an output line.

4. The charging device in claim 3, wherein the first current processing module comprises a current output terminal, a signal input terminal, and a power input terminal;

the current output terminal is connected to the first output terminal and the second output terminal, the power input terminal electrically is connected to the power source.

5. The charging device in claim 1, wherein the first microprocessor comprises a first controlling terminal, a second controlling terminal, and a third controlling terminal;

the first controlling terminal and the second controlling terminal are connected to the gate line and the output line respectively, the third controlling terminal is connected to the signal input terminal.

6. The charging device in claim 1, wherein the charging device further comprises a position sensor, the position sensor is disposed on the upper surface adjacent to the side surface of the charging platform;

the position sensor is configured for detecting whether there is an electronic device placed on the charging platform.

7. A charging system, comprising:

a charging device comprising;

a charging platform;

a plurality of first electromagnetic induction devices disposed on the charging platform;

a first microprocessor configured for activating the first electromagnetic induction devices and identifying the first electromagnetic induction devices that generated effective differential signals; and

a first current processing module configured for inputting an alternating current to the first electromagnetic induction devices identified by the first microprocessor;

an electronic device to be placed on the charging platform for charging, comprising;

a second electromagnetic induction device configured to generate induced current under electromagnetic fields, and

a rechargeable battery storing the electrical energy generated by the second electromagnetic induction device.

8. The charging system in claim 7, wherein the electronic device further comprises a second current processing module configured for converting residual electrical energy of the rechargeable battery into alternating current under one operation mode and converting alternating current generated by the first electromagnetic induction device into direct current under another operation mode.

9. The charging system in claim 8, wherein the electronic device further comprises a second microprocessor configured for controlling the second current processing module to change the operation mode.