Charging Conversion Circuit Control for Efficient Fast Charging
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Solution Overview
Problem
Existing charging technologies face issues of poor charging efficiency and user experience due to high line impedance loss, high cable cost, and heating problems in high-voltage charging, limiting the effectiveness of both low-voltage large current and high-voltage charging methods.
Innovation Solution
A charging method and system that adjusts the working state of the charging conversion circuit based on detected parameters such as battery state, temperature, and input/output voltages and currents to optimize charging efficiency, using a switched capacitor array chip to maintain high efficiency and reduce heating.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If multiple charging parameters are transmitted through one communication interface, then communication efficiency is improved, but parameter accuracy may deteriorate due to protocol conversion errors
Solution Approach 1:
The patent introduces a gateway device as an intermediary between the charging device and terminal. The gateway receives charging parameters from the charging device, performs protocol conversion, and transmits converted parameters to the terminal. This intermediary approach enables efficient communication while maintaining parameter accuracy through dedicated protocol conversion mechanisms.
Solution Approach 2:
The patent segments the communication system into distinct functional modules: a communication module for parameter transmission, a protocol conversion module for format transformation, and a processing module for parameter handling. This segmentation allows each module to specialize in specific tasks, improving overall communication efficiency while ensuring accurate parameter conversion and transmission.
2Speed
If charging parameters are not converted to standard format, then communication speed is improved, but device compatibility deteriorates
Solution Approach 1:
The patent implements preliminary protocol conversion at the gateway before parameters are transmitted to the terminal. By converting charging parameters to standard formats in advance, the system ensures compatibility with various terminal devices while maintaining efficient communication. The gateway performs this conversion proactively, so terminals receive parameters in universally compatible formats without requiring additional conversion steps.
3Adaptability or versatility
If protocol conversion is performed at the terminal, then device adaptability is improved, but processing power consumption increases
Solution Approach 1:
The patent extracts the protocol conversion function from the terminal device and relocates it to the gateway device. The gateway performs all necessary protocol conversion operations, receiving parameters from the charging device and transmitting converted standard-format parameters to the terminal. This extraction eliminates the need for terminals to perform complex protocol conversion, significantly reducing their processing power consumption while maintaining full adaptability to different charging standards.
Data Source
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AI summary
Provided in the embodiments of the present disclosure are a charging method, apparatus and system, a charging circuit, a terminal and a charging system. The method includes: detecting a working parameter of a to-be-charged terminal during charging, wherein the working parameter reflects a state of the to-be-charged terminal during charging (S202); and adjusting a working state of a charging conversion circuit in the to-be-charged terminal according to the working parameter, wherein different working states correspond to different charging efficiencies (S204). The embodiments of the present disclosure solve the technical problems of poor charging efficiency and user experience of charging solutions in the relevant art.