Power Receiving Apparatus Wired Charging Priority Control
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Solution Overview
Problem
In wireless power transmission systems, unnecessary power transmission occurs when a power receiving apparatus detects wired charging in progress, leading to repetitive operations of receiving digital pings and sending power transmission stop instructions, resulting in excessive power expenditure.
Innovation Solution
A power receiving apparatus is designed to transmit information to the power transmitting apparatus to restrict power transmission for a predetermined period when both wireless and wired power reception are detected, preventing unnecessary digital ping transmissions and reducing power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the power receiving apparatus sends power transmission stop instructions when wired charging is detected, then wired charging priority is maintained, but unnecessary repetitive power transmission occurs
Solution Approach 1:
The power receiving apparatus transmits information in advance to restrict power transmission when wired charging is detected, preventing the power transmitting apparatus from sending unnecessary digital pings before they would occur. This preliminary restriction action avoids the harmful effect of repetitive power transmission and energy waste.
2Measurement precision
If the power transmitting apparatus repeatedly transmits digital pings to detect power receiving apparatus, then detection accuracy is improved, but power consumption increases
Solution Approach 1:
The power receiving apparatus provides feedback information to the power transmitting apparatus indicating that wired charging is in progress. This feedback mechanism allows the power transmitting apparatus to stop repetitive digital ping transmissions, reducing energy consumption while maintaining detection accuracy through the feedback loop.
3Measurement precision
If the power receiving apparatus continuously monitors for wired charging status, then charging control accuracy is improved, but processing overhead increases
Solution Approach 1:
The power receiving apparatus performs preliminary detection of wired charging status and transmits restriction information before the power transmitting apparatus would initiate repetitive digital ping transmissions. This preliminary action reduces the need for continuous monitoring and processing, decreasing processing overhead while maintaining charging control accuracy.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This solution effectively suppresses repetitive power transmission, preventing heat generation and reducing power consumption by ensuring that digital ping transmissions are only resumed after the predetermined period has elapsed or when wired charging is no longer in progress.
Implementation Method 1
a power receiving unit configured to wirelessly receive power from a power transmitting apparatus
Data Source
AI summary
A power receiving apparatus comprises a power receiving unit configured to wirelessly receive power from a power transmitting apparatus; and a transmitting unit configured to, in a state where both power reception by the power receiving unit and reception of power transmitted to the power receiving apparatus from an external apparatus via a cable are detected, transmit, to the power transmitting apparatus, information for restricting power transmission for activating the power receiving apparatus, wherein the information being information for restricting power transmission during the period of time from when the power transmission is stopped until a predetermined period has elapsed.