Wireless Charging Transmitter Dynamic Power Control
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Solution Overview
Problem
Existing wireless charging technologies face challenges in efficiently charging external devices without separate charging devices, leading to potential malfunctions due to unpredictable power consumption and lack of power management during events like display activation or application execution.
Innovation Solution
An electronic device with a conductive coil and wireless charging circuit that receives power control signals, applies charging currents, and transmits information to adjust charging power based on events, ensuring stable charging and preventing malfunctions by maintaining current below specified values.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If wireless charging is performed without separate charging devices, then charging convenience is improved, but power management stability deteriorates due to unpredictable power consumption during device events
Solution Approach 1:
The transmitting device monitors power consumption in real-time during wireless charging and dynamically adjusts charging power based on detected events (display on/off, application execution). This feedback mechanism ensures stable power management while maintaining charging convenience by preventing power shortages that would cause charging interruptions.
Solution Approach 2:
The charging power is made dynamic rather than fixed, allowing the system to adapt to changing power consumption conditions. When events occur that increase power consumption, the system adjusts the charging power accordingly, maintaining reliability while preserving the convenience of wireless charging without separate charging devices.
2Productivity
If charging power is increased to reduce charging time, then charging speed is improved, but risk of malfunction increases due to unpredictable power consumption events
Solution Approach 1:
The system continuously monitors power consumption and provides feedback to adjust charging power. This allows the system to increase charging power to reduce charging time while simultaneously detecting events that would cause power shortages, adjusting power down to prevent malfunctions, thus balancing charging speed with reliability.
Solution Approach 2:
The charging power parameter is dynamically changed based on detected events. The system can switch between different power levels depending on the operational state of the device, enabling faster charging when conditions permit and preventing malfunctions when power consumption increases due to events like display activation or application execution.
3Reliability
If separate charging devices are used for wired or wireless charging, then charging reliability is improved, but portability deteriorates as users must carry additional devices
Solution Approach 1:
The patent combines the charging function with the electronic device itself by integrating a wireless charging transmitter. This merging eliminates the need for separate charging devices, improving portability while maintaining charging reliability through the integrated power management system that monitors and adjusts power consumption during device events.
Solution Approach 2:
The electronic device is designed with multi-functionality, serving both as the device to be charged and as the charging source. This universal design allows the device to charge itself wirelessly without requiring external charging equipment, improving portability while the integrated power management ensures charging reliability.
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 enables efficient wireless charging by dynamically adjusting power transmission based on device events, preventing charging interruptions and malfunctions, and reducing charging time by optimizing power usage.
Implementation Method 1
a conductive coil parallel to the second plate and disposed between the display and the second plate, a wireless charging circuit electrically connected to the conductive coil
Data Source
AI summary
An electronic device includes a housing including a first plate, a second plate spaced apart from the first plate and facing the first plate, and a side member at least partially surrounding a space between the first plate and the second plate, a display located in the space and visible through the first plate, a conductive coil parallel to the second plate and disposed between the display and the second plate, a wireless charging circuit electrically connected to the conductive coil, and a processor operationally connected with the display and the wireless charging circuit. The processor receives a power control signal from an external device, applies a charging current to the conductive coil, based on the power control signal, senses whether a specified event occurs while the charging current is applied, and when the specified event occurs, transmits information for setting a charging power corresponding to the specified event to the external device.