一种无线充电系统中负载电池充电状态的检测方法及系统
By acquiring and comparing the real-time power value and backup power value of the receiver through wireless transmission at the transmitting end, and combining the delay time to determine the charging status of the load battery, the problem of inaccurate charging status and high cost in wireless charging technology is solved, and low-cost and accurate charging status detection is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- CRM ICBG (WUXI) CO LTD
- Filing Date
- 2021-11-08
- Publication Date
- 2026-07-17
AI Technical Summary
Existing wireless charging technologies are inaccurate and costly in determining the charging status of a battery when it is fully charged, especially since the receiver chip cannot accurately determine the charging status, requiring an external charging management chip that increases costs.
The transmitter obtains the real-time power value of the receiver through wireless transmission, updates the backup power value, compares it with a preset threshold, and determines the charging status of the load battery by combining the delay time, including the stages of no load, full charge, pre-charge, constant voltage charging, constant current charging, and constant current to constant voltage charging. The determination is completed by the management chip.
No additional charging management chip is needed, reducing costs, avoiding misjudgments caused by voltage fluctuations, and improving the accuracy of charging status judgment.
Smart Images
Figure CN116094079B_ABST