Selective Power Distribution Circuitry for Wireless Charging
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Solution Overview
Problem
Existing wireless communication devices consume unnecessary power during wireless charging processes, as they often require powering up the entire device platform, which is inefficient, especially when the battery is discharged or in low power states.
Innovation Solution
The implementation of power distribution circuitry that selectively distributes power only to relevant device resources, using wireless power transfer capabilities to expedite the boot cycle and minimize unnecessary power consumption by enabling power modes without requiring a full device power cycle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the entire device platform is powered up during wireless charging, then all device components can operate, but power consumption increases unnecessarily
Solution Approach 1:
The device platform is divided into multiple power domains with independent power control. The power distribution circuitry selectively enables only the specific domain(s) required for wireless charging operation (e.g., wireless communication domain, power management domain) while keeping other domains powered down, thus reducing overall power consumption while maintaining necessary device functionality.
2Use of energy by moving object
If selective power distribution is implemented, then power consumption is reduced, but device complexity increases
Solution Approach 1:
The power distribution circuitry integrates multiple control functions into a unified architecture that manages power allocation across different device domains. By consolidating power management logic and control mechanisms in a centralized manner, the system achieves selective power distribution without proportionally increasing overall device 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
This approach reduces power consumption and enhances efficiency by ensuring only necessary components are powered during wireless charging, facilitating seamless power mode transitions and improving battery charging operations.
Implementation Method 1
The QiTM specification promulgated by the Wireless Power Consortium (WPC) relies on a magnetic induction charging approach
Implementation Method 2
The RezenceTM/WiPowerTM specification promulgated by the Alliance for Wireless Power (A4WP) is one example of a current WPT approach that utilizes magnetic resonance charging
Data Source
AI summary
Power distribution circuitry to improve wireless power distribution and facilitate wireless power transfer (WPT) operations in a wireless communication device under a variety of operating conditions. In various exemplary embodiments of the disclosure, the power distribution circuitry operates to provide a wireless power (WP) supply voltage to wireless communication circuitry of the device in order enable a WPT connection procedure under certain low power conditions. Such conditions might include a power off mode, a sleep mode, and dead/low battery operating conditions wherein the available battery supply voltage is less than a threshold voltage required to enable device components. The power distribution circuitry may switch the supply voltage of the wireless communication circuitry to another available supply voltage source after the WPT connection procedure is completed and wireless power is being received by the wireless communication device.