Wireless Power Supply Timing Synchronization Control
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Solution Overview
Problem
Existing wireless power supply systems lack synchronization between the timing for switching power supply and communication processes, particularly when the communication mode of the electronic apparatus changes, leading to compatibility issues.
Innovation Solution
A power supply apparatus with a control unit that coordinates the timing for switching between communication and power supply processes using a communication unit and a power supply unit, ensuring synchronization even when the communication mode changes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the power supply apparatus uses NFC communication protocol to communicate with the electronic apparatus, then wireless communication capability is achieved, but the timing for switching between communication process and power supply process changes according to communication mode, causing synchronization issues
Solution Approach 1:
The patent implements dynamic switching between communication mode and power supply mode based on real-time detection of communication phase. The control unit dynamically adjusts the operating state of the wireless communication unit and power supply unit, ensuring they operate in coordinated half-duplex mode rather than fixed simultaneous mode, thereby resolving the synchronization conflict while maintaining NFC protocol compatibility
Solution Approach 2:
The patent employs feedback mechanisms where the control unit monitors the communication phase between the wireless communication unit and external device, then uses this feedback information to control the switching timing of the power supply unit. This closed-loop control ensures that power supply activation is synchronized with appropriate communication phases, maintaining reliability across different NFC communication modes
2Productivity
If the power supply apparatus and electronic apparatus switch between power supply and communication processes simultaneously, then wireless power transfer efficiency is improved, but lack of timing coordination causes communication interference and power supply instability
Solution Approach 1:
The patent implements periodic alternating operation between communication phase and power supply phase. The control unit orchestrates periodic switching where the wireless communication unit operates during communication phases and the power supply unit operates during power transfer phases, creating a rhythmic half-duplex operation pattern. This periodic action prevents simultaneous operation conflicts while maintaining high overall efficiency through optimized duty cycling
Data Source
AI summary
A power supply apparatus includes a power supply unit that wirelessly supplies power to an electronic apparatus, a communication unit that performs a wireless communication with the electronic apparatus, and a control unit that controls a timing for switching a communication process performed by the communication unit and a power supply process performed by the power supply unit.