Title:
POWER SUPPLY MANAGEMENT SYSTEM, BATTERY, CHARGER AND UNMANNED AERIAL VEHICLE
Document Type and Number:
WIPO Patent Application WO/2019/227378
Kind Code:
A1
Abstract:
A power supply management system, comprising: a single communication line, a controller and a selection and control circuit. One end of the communication line is used for being communicatively connected to a battery, and the other end of the communication line is electrically connected to both a communication interface and a temperature measurement interface of the controller; and the controller is electrically connected to the selection and control circuit, and is used for controlling the selection and control circuit so same switches between a temperature measurement mode and an encryption and authentication mode, wherein when the selection and control circuit is switched to the temperature measurement mode, the controller reads the voltage of a temperature measurement resistor in the battery through the communication line; and when the selection and control circuit is switched to the encryption and authentication mode, the controller communicates with an encryption chip in the battery through the communication line. The battery management system of the present invention only requires an encryption chip and temperature measurement resistor in a battery adapted to the battery management system to share a common pin, thereby reducing the number of components of the battery, and facilitating making the battery lightweight and miniaturizing same. Further provided are a battery, a charger and an unmanned aerial vehicle.
Inventors:
LIANG LIANG (CN)
MENG DEQIANG (CN)
MENG DEQIANG (CN)
Application Number:
PCT/CN2018/089220
Publication Date:
December 05, 2019
Filing Date:
May 31, 2018
Export Citation:
Assignee:
SZ DJI TECHNOLOGY CO LTD (CN)
International Classes:
H01M10/42; H01M10/04; H01M10/48; H02J7/00
Foreign References:
| CN107452989A | 2017-12-08 | |||
| CN203086169U | 2013-07-24 | |||
| CN106972595A | 2017-07-21 | |||
| US20140026155A1 | 2014-01-23 |
Attorney, Agent or Firm:
LEADER PATENT & TRADEMARK FIRM (CN)
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