Wireless Power Transmitter Control for Preemptive Power Boost
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Solution Overview
Problem
Electronic devices that wirelessly receive power may turn off due to insufficient power when their power consumption varies, such as when brightness or volume is increased, unless the received power is correspondingly increased.
Innovation Solution
A wireless power transmitter that dynamically adjusts the power transmission based on the device's state changes, allowing the device to request and receive sufficient power before performing operations that increase its consumption, ensuring the received power remains greater than the consumption.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Use of energy by moving object
If the electronic device increases power consumption to perform operations (e.g., increase brightness), then the device functionality is improved, but the device turns off due to insufficient received power
Solution Approach 1:
The electronic device sends a state change command to the wireless power transmitter before actually changing its state (e.g., before increasing brightness). This allows the power transmitter to pre-increase the transmitted power level, ensuring that sufficient power is available when the device needs to perform high-consumption operations, thus preventing the device from turning off due to power shortage.
2Reliability
If the wireless power transmitter increases transmitted power in response to state change commands, then the device can maintain functionality during high power consumption operations, but the power transmission system complexity increases
Solution Approach 1:
The wireless power transmitter monitors state change commands from the electronic device and dynamically adjusts the transmitted power level in response. This feedback mechanism allows the system to automatically match power transmission to device needs, maintaining reliability while using a standardized communication protocol to manage control complexity.
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
Prevents electronic devices from turning off due to power shortages by ensuring the power received is sufficient for varying operations, maintaining device functionality and user convenience.
Implementation Method 1
Wireless power transmission may be performed in a magnetic induction, magnetic resonance, or electromagnetic wave scheme. The magnetic induction or magnetic resonance scheme is advantageous in charging electronic devices positioned within a relatively short distance from the wireless power transmitter.
Implementation Method 2
Wireless power transmission may be performed in a magnetic induction, magnetic resonance, or electromagnetic wave scheme. The magnetic induction or magnetic resonance scheme is advantageous in charging electronic devices positioned within a relatively short distance from the wireless power transmitter.
Implementation Method 3
The electromagnetic wave scheme is more advantageous for remote power transmission that reaches a longer distance than in the magnetic induction or magnetic resonance scheme, is primarily intended for remote power transmission, reaches the location of remote power receivers, and delivers power in a most efficient manner.
Data Source
Figure 1A~1B
Figure 2~3A
Figure 3B
AI summary
Disclosed is a wireless power transmitter including a power transmitting circuit, a communication circuit and a control circuit configured to perform control to wirelessly transmit a first magnitude of power for operating an electronic device through the power transmitting circuit, obtain an operation performing command enabling the electronic device to perform a first operation, increase a magnitude of the power from the first magnitude to a second magnitude based on the operation performing command, and transmit, after increasing the magnitude of the power, a first communication signal enabling the first operation to be performed through the communication circuit to the electronic device.