Non-Contact Power Receiver With Shared Rectifying Circuit
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The existing non-contact type power receiving apparatuses require multiple rectifying circuits for each power receiving coil, leading to increased manufacturing costs and volume due to their complexity and inflexibility in charging wearable devices with varied forms.
Innovation Solution
A non-contact type power receiving apparatus that employs two power receiving coils sharing a single rectifying circuit, allowing for efficient power transmission and charging of multiple battery cells through a selective rectifying unit and converting unit, enabling flexible power reception and reduced component count.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If multiple power receiving coils are used to enable flexible positioning of wearable devices on charging pads, then adaptability is improved, but device complexity increases due to requiring separate rectifying circuits for each coil
Solution Approach 1:
The patent merges multiple rectifying circuits into a single shared rectifying circuit that serves multiple power receiving coils. The selective rectifying unit can selectively connect to different power receiving coils while sharing common rectifying components, thereby reducing device complexity while maintaining adaptability for various wearable device positions.
Solution Approach 2:
The single rectifying circuit is designed to perform multiple functions by selectively receiving power from different power receiving coils based on which coil is actively receiving power from the external transmitting coil. This universal design eliminates the need for dedicated rectifying circuits for each coil, reducing overall system complexity.
2Reliability
If separate rectifying circuits are provided for each power receiving coil, then reliability is improved, but manufacturing cost increases
Solution Approach 1:
The patent combines multiple rectifying circuits into a single shared rectifying circuit with selective switching capability. This merging approach reduces the total number of components that need to be manufactured and assembled, thereby lowering manufacturing costs while maintaining reliable power reception through the selective connection mechanism.
3Reliability
If separate rectifying circuits are provided for each power receiving coil, then power reception reliability is improved, but device volume increases
Solution Approach 1:
The patent merges multiple rectifying circuits into a single shared rectifying circuit, which significantly reduces the volume occupied by rectifying components. The selective switching mechanism allows the single circuit to serve multiple coils without requiring separate physical circuits for each, thereby reducing overall device volume while maintaining power reception 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 reduces manufacturing costs and volume while enabling flexible power reception for wearable devices with varied forms, improving the efficiency and cost-effectiveness of non-contact charging systems.
Implementation Method 1
a first power receiving coil CR1 and a second power receiving coil CR2, and a selective rectifying unit (120) rectifying power from one of the first and second power receiving coils which receives the power from an external power transmitting coil in a non-contact scheme
Data Source
AI summary
In a non-contact type power receiving apparatus, two power receiving coils may share a single rectifying circuit. A non-contact type power receiving apparatus may include a first power receiving coil and a second power receiving coil, and a selective rectifying unit rectifying power from one of the first and second power receiving coils which receives the power from an external power transmitting coil in a non-contact scheme.