Charging method and device and electronic device
A technology for electronic equipment and charging equipment, applied in circuit devices, battery circuit devices, secondary battery charging/discharging, etc., can solve the problem of large system heat generation, and achieve the effect of reducing equipment heat generation and ensuring charging efficiency
Active Publication Date: 2020-07-17
LENOVO (BEIJING) LTD
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Problems solved by technology
[0005] In view of this, the present application provides a charging method to solve the problem of large system heat generation in the charging process in the prior art
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[0054]The following will clearly and completely describe the technical solutions in the embodiments of the application with reference to the drawings in the embodiments of the application. Apparently, the described embodiments are only some of the embodiments of the application, not all of them. Based on the embodiments in this application, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of this application.
[0055] Such as figure 1 Shown is a schematic diagram of a charging circuit with a dual-cell architecture, including: two voltage conversion chips 101 (HV2:1CP) and a control chip 102 (buck-boost charger IC). When the charging power is above 50W, the power provided by the charging device The battery is charged by two voltage conversion signals in parallel and the control chip IC, and the charging efficiency mainly depends on the loop loss and the efficiency of the switching capacitor....
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The invention provides a charging method which is applied to an electronic device, the electronic device comprises at least three charging circuits, any two charging circuits achieve different charging powers to charge a battery, and one charging circuit corresponds to one charging strategy. The charging method comprises the steps of obtaining the charging environment parameters of the electronicdevice; and when the charging environment parameter satisfies a predetermined switching condition, switching a charging strategy used by the electronic device at the current moment from a first charging strategy to a second charging strategy, wherein the charging power of the first charging strategy is higher than the charging power of the second charging strategy. According to the scheme, the multiple charging circuits are arranged, when the temperature of the electronic device is higher in the charging process, the electronic device is switched to another charging strategy with lower charging power, and compared with the mode of directly reducing the charging power for the first charging strategy, the influence on the charging efficiency is smaller, and the device heating is reduced on the premise that the charging efficiency is guaranteed.
Description
technical field [0001] The present application relates to the field of electronic equipment, and more specifically, relates to a charging method, device and electronic equipment. Background technique [0002] With the development of electronic technology, fast charging of electronic devices is widely welcomed by users as a fast charging method. [0003] However, the higher the system charging power of the electronic device, the higher the charging heat. Taking mobile phones as an example, when the charging power of the mobile phone system rises above 50W (watts), a dual-cell architecture must be used to continue to increase the charging power. The charging IC (integrated circuit) architecture used is a 2:1 switch The charging efficiency of capacitors and ICs is about 96% to 97% between 10W and 100W, and the lower the efficiency is in the lower power range, the greater the heat generated by the system. [0004] Therefore, there is an urgent need for a charging method that c...
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IPC IPC(8): H01M10/44H02J7/00
CPCH01M10/443Y02E60/10Y02B40/00
Inventor 王睿智马超佟宇飞
Owner LENOVO (BEIJING) LTD