Wireless Power Receiver Abnormal State Detection
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Solution Overview
Problem
Conventional electronic apparatuses waste power by discharging received energy when they enter an abnormal state in wireless power supply systems, leading to inefficiency in power utilization.
Innovation Solution
The system incorporates a power receiving restriction circuit in the electronic apparatus that detects abnormal states, such as excessive temperature or battery voltage, and communicates with the power supply apparatus to reduce or stop power reception, preventing unnecessary power consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the electronic apparatus discharges power when entering an abnormal state, then the abnormal state is handled, but power is wasted
Solution Approach 1:
The electronic apparatus continuously monitors its operational state (temperature, battery voltage, charging status) and provides feedback to the power supply apparatus. When an abnormal state is detected, this feedback triggers a control mechanism that stops or reduces power reception, preventing power wastage while maintaining reliable abnormal state handling.
Solution Approach 2:
The power reception state is made dynamic rather than static. The electronic apparatus can switch between different power reception modes (normal reception, reduced reception, stopped reception) based on real-time operational conditions. This dynamic adjustment allows the system to respond flexibly to abnormal states without permanently wasting power.
2Use of energy by moving object
If power reception is continuously maintained, then power availability is ensured, but power wastage occurs in abnormal states
Solution Approach 1:
Continuous monitoring of operational parameters (temperature, battery voltage, charging completion status) provides real-time feedback that triggers appropriate power reception adjustments. This ensures power is available when needed while preventing wastage when the apparatus is already charged or in abnormal states.
Solution Approach 2:
The power reception parameters (power level, reception state) are dynamically changed based on operational conditions. The system transitions between different power reception levels depending on battery status, temperature, and charging requirements, optimizing both power availability and energy efficiency.
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 prevents power wastage by dynamically controlling power reception based on the state of the electronic apparatus, ensuring efficient energy use and reducing unnecessary power supply.
Implementation Method 1
a power supply antenna that wirelessly output power without being connected by a connector
Implementation Method 2
an electronic apparatus having a power receiving antenna that wirelessly receives the power supplied from the power supply apparatus
Data Source
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AI summary
An electronic apparatus includes a power receiving means for wirelessly receiving power from a power supply apparatus, a detection means for detecting whether the electronic apparatus is in a predetermined state, a load means to be supplied with power from the power receiving means, and a control means configured to perform control such that a second power is supplied from the power receiving means to the load means if the detection means detects that the electronic apparatus is in the predetermined state and a first power is supplied from the power receiving means to the load means, wherein the second power is lower than the first power, and the control means is further configured to perform control such that the first power is supplied from the power receiving means to the load means if the detection means detects that the electronic apparatus is in a state different from the predetermined state and a power supplied from the power supply apparatus is reduced to a predetermined power value or less.