INTELLIGENT MOBILE POWER SUPPLY AND METHOD FOR USB DATA COMMUNICATION THEREWITH

• US 20190050037A1
• Filed: 08/02/2018
• Published: 02/14/2019
• Est. Priority Date: 08/11/2017
• Status: Active Grant

• Current Assignee: Norel Systems Limited
• Original Assignee: Norel Systems Limited
• Inventors: WANG, Yuanlong, Wu, Ting, Zhao, Wei, Chen, Miao
• Granted Patent: US 10,671,135 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 1/263 Arrangements for using multiple switchable power supplies, e.g. battery and AC G06F1/30 takes precedence
• CPC Class Codes: G06F 1/266 Arrangements to supply power to external peripherals either directly from the computer or under computer control, e.g. supply of power through the communication port, computer controlled power-strips
• CPC Class Codes: G06F 13/4282 on a serial bus, e.g. I2C bus, SPI bus on daisy chain buses G06F13/4247
• CPC Class Codes: G06F 2213/0042 Universal serial bus [USB]
• CPC Class Codes: H02J 7/00 Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
• CPC Class Codes: H02J 7/00034 Charger exchanging data with an electronic device, i.e. telephone, whose internal battery is under charge
• CPC Class Codes: H02J 7/0068 Battery or charger load switching, e.g. concurrent charging and load supply H02J7/0013 takes precedence
• CPC Class Codes: Y02E 60/10 Energy storage using batteries

Abstract

An intelligent mobile power supply and a method for USB data communication therewith. The intelligent mobile power supply includes a battery, a charging control module, a discharging control module, a first USB interface and a second USB interface. In the single charging mode, a charged device receives a discharge of the intelligent mobile power supply through the discharging control module, but the intelligent mobile power supply does not perform USB data communication with the charged device. While in the charging and communication mode, the charged device receives the discharge of the intelligent mobile power supply through the discharging control module and can perform USB data communication with the intelligent mobile power supply through the first USB interface simultaneously. The second USB interface is connected with the charging control module, and the second USB interface can be connected with a power adapter or a PC host to charge the battery.

Claims

1. An intelligent mobile power supply, comprising a battery, a charging control module, a discharging control module, a first USB interface and a second USB interface, and characterized in that:

the intelligent mobile power supply further comprises a micro-control unit, a discharging mode selection module and a discharging mode selection signal,

the first USB interface is connected with a USB interface of a charged device through a first USB cable,

a VBUS signal of the first USB interface is connected with the discharging control module which is connected with the battery,

DP and DM signals, or CC1 and CC2 signals, or DP and DM and CC1 and CC2 signals of the first USB interface are connected with the discharging mode selection module,

the discharging mode selection module is connected with the discharging mode selection signal, selectively configures the first USB interface into a single charging mode or a charging and communication mode according to the discharging mode selection signal, and completes the configuration of the mode according to a fast charging protocol,

in the single charging mode, the charged device receives a discharge of the intelligent mobile power supply through a VBUS, but the intelligent mobile power supply does not perform USB data communication with the charged device,

in the charging and communication mode, the charged device receives the discharge of the intelligent mobile power supply through the VBUS and may perform USB data communication with the intelligent mobile power supply simultaneously,

the micro-control unit comprises a first USB controller, wherein the DP and DM signals of the first USB interface are connected with the first USB controller;

the first USB controller works in a USB Host mode and performs USB data communication with the charged device in the charging and communication mode,

the second USB interface is connected with the charging control module which is connected with the battery, and the second USB interface is connected with a power adapter or a PC host to charge the battery through a second USB cable.

2. The intelligent mobile power supply according to claim 1, characterized in that:

the intelligent mobile power supply further comprises a storage device, and the micro-control unit further comprises a storage controller, wherein the storage controller is connected with the storage device;

in the charging and communication mode, the micro-control unit performs USB data communication with the charged device through the first USB controller and performs read and write operation on the storage device through the storage controller simultaneously.

3. The intelligent mobile power supply according to claim 2, characterized in that:

the storage device is a flash memory card, a flash memory chip or a hard disk.

4. The intelligent mobile power supply according to claim 1, characterized in that:

the intelligent mobile power supply further comprises a wireless transmitting and receiving apparatus, the micro-control unit is connected with the wireless transmitting and receiving apparatus, and in the charging and communication mode, the micro-control unit performs USB data communication with the charged device through the first USB controller and transmits and receives data through the wireless transmitting and receiving apparatus.

5. The intelligent mobile power supply according to claim 1, characterized in that:

the charging control module is also connected with the micro-control unit which obtains power and state information of the battery through the charging control module.

6. The intelligent mobile power supply according to claim 1, characterized in that:

the discharging mode selection signal is generated by a switch or button included in the intelligent mobile power supply or by the micro-control unit.

7. The intelligent mobile power supply according to claim 1, characterized in that:

the fast charging protocol is USB Battery Charging Protocol, Qualcomm Quick Charging protocol, Huawei Fast Charger Protocol, Samsung Adaptive Fast Charging Protocol, Mediatek Pump Express Charging Protocol, Apple Fast Charging Protocol or USB Power Delivery Charging Protocol.

8. The intelligent mobile power supply according to claim 1, characterized in that:

the charging and communication mode is Standard Download Port (SDP) defined by the USB Battery Charging Protocol.

9. The intelligent mobile power supply according to claim 1, characterized in that:

the charging and communication mode is a Charging Download Port (CDP) defined by the USB Battery Charging Protocol.

10. The intelligent mobile power supply according to claim 1, characterized in that:

the single charging mode is a mode defined by a fast charging protocol other than the Standard Download Port (SDP) and the Charging Download Port (CDP) defined by the USB Battery Charging Protocol.

11. The intelligent mobile power supply according to claim 1, characterized in that:

the micro-control unit further comprises a second USB controller, the second USB interface is connected with the second USB controller of the micro-control unit, and the second USB controller works in a USB Device mode, and

when the second USB interface is connected with the PC host through the second USB cable, the micro-control unit may selectively perform USB data communication with the PC host through the second USB controller or perform USB data communication with the charged device through the first USB controller in the charging and communication mode.

12. The intelligent mobile power supply according to claim 1, characterized in that:

the charged device is a mobile device running an Android system.

13. A method for USB data communication with an intelligent mobile power supply, the intelligent mobile power supply comprising a first USB interface, the first USB interface being connected with a USB interface of a charged device through a first USB cable, and characterized in that:

the intelligent mobile power supply further comprises a first USB controller,

the intelligent mobile power supply selectively configures the first USB interface into a single charging mode or a charging and communication mode, and completes the configuration of the mode according to a fast charging protocol,

in the single charging mode, the charged device receives a discharge of the intelligent mobile power supply through a VBUS, but the intelligent mobile power supply does not perform USB data communication with the charged device,

in the charging and communication mode, the charged device receives the discharge of the intelligent mobile power supply through the VBUS and may perform USB data communication with the intelligent mobile power supply simultaneously,

the first USB controller is connected with the first USB interface and performs USB data communication with the charged device in the charging and communication mode,

when the first USB interface is not connected with the charged device, the intelligent mobile power supply sets the first USB interface to the single charging mode,

when the USB interface of the charged device is connected with the first USB interface through the first USB cable, the first USB interface remains in the single charging mode,

in the single charging mode, a user may artificially force the intelligent mobile power supply to change the configuration of the first USB interface to the charging and communication mode, and when the charged device detects that the first USB interface has changed to the charging and communication mode, the charged device starts the USB data connection with the intelligent mobile power supply and performs USB data communication while being charged, and

in the charging and communication mode, the first USB controller works in a USB Host mode and the charged device works in a USB Device mode.

14. The method for USB data communication with the intelligent mobile power supply according to claim 13, characterized in that:

after the USB data connection between the charged device and the intelligent mobile power supply is established, the first USB controller notifies the charged device to start a designated APP through the USB data connection and performs subsequent USB data communication with the charged device.

15. The method for USB data communication with the intelligent mobile power supply according to claim 14, characterized in that:

the intelligent mobile power supply further comprises a storage device, and the APP performs USB data interaction with the intelligent mobile power supply in the charging and communication mode to read from and write to the storage device.

16. The method for USB data communication with the intelligent mobile power supply according to claim 15, characterized in that:

the storage device is a flash memory card, a flash memory chip or a hard disk.

17. The method for USB data communication with the intelligent mobile power supply according to claim 14, characterized in that:

the intelligent mobile power supply further comprises a wireless transmitting and receiving apparatus, and the APP performs USB data interaction with the intelligent mobile power supply in the charging and communication mode and transmits and receives data through the wireless transmitting and receiving apparatus.

18. The method for USB data communication with the intelligent mobile power supply according to claim 13, characterized in that:

the method for artificially forcing the intelligent mobile power supply to change the configuration of the first USB interface to the charging and communication mode is to artificially toggle or press the switch or button included in the intelligent mobile power supply, and the intelligent mobile power supply changes the configuration of the first USB interface to the charging and communication mode after detecting this operation.

19. The method for USB data communication with the intelligent mobile power supply according to claim 13, characterized in that:

the fast charging protocol is USB Battery Charging protocol, Qualcomm Quick Charging protocol, Huawei Fast Charger protocol, Samsung Adaptive Fast Charging Protocol, Mediatek Pump Express Charging Protocol, Apple Fast Charging Protocol or USB Power Delivery Charging Protocol.

20. The method for USB data communication with the intelligent mobile power supply according to claim 13, characterized in that:

the charging and communication mode is Standard Download Port (SDP) defined by the USB Battery Charging Protocol.

21. The method for USB data communication with the intelligent mobile power supply according to claim 13, characterized in that:

the charging and communication mode is a Charging Download Port (CDP) defined by the USB Battery Charging Protocol.

22. The method for USB data communication with the intelligent mobile power supply according to claim 13, characterized in that:

the single charging mode is a mode defined by a fast charging protocol other than the Standard Download Port (SDP) and the Charging Download Port (CDP) defined by the USB Battery Charging Protocol.

23. The method for USB data communication with the intelligent mobile power supply according to claim 13, characterized in that:

the charged device is a mobile device running an Android system.

24. The method for USB data communication with the intelligent mobile power supply according to claim 13, characterized in that:

the intelligent mobile power supply further comprises a second USB interface which may be connected with a power adapter or a PC host through a second USB cable to charge the intelligent mobile power supply.

25. The method for USB data communication with the intelligent mobile power supply according to claim 24, characterized in that:

the intelligent mobile power supply further comprises a second USB controller, the second USB interface is connected with the second USB controller, and the second USB controller works in the USB Device mode, and

when the second USB interface is connected with the PC host through the second USB cable, the intelligent mobile power supply may selectively perform USB data communication with the PC host through the second USB controller or perform USB data communication with the charged device through the first USB controller in the charging and communication mode.