Overview
IEC 63245-2:2022 defines the reference model for spatial wireless power transfer based on multiple magnetic resonances (SWPT-MMR). This international standard, published by the International Electrotechnical Commission (IEC), outlines a structured approach for non-radiative wireless power transfer in spatial environments, leveraging multiple magnetic resonances for efficient, flexible power delivery. As the second part of the IEC 63245 series, it complements IEC 63245-1 (Requirements) and provides a foundational model for the design, evaluation, and implementation of SWPT-MMR systems.
Designed to support varied positions and orientations of receivers, SWPT-MMR systems can deliver power wirelessly within a defined space, overcoming many limitations of static or contact-based wireless charging methods. This makes SWPT-MMR highly relevant for a range of modern wireless power solutions.
Key keywords: wireless power transfer, SWPT-MMR, multiple magnetic resonances, reference model, IEC standards.
Key Topics
Essential Components of SWPT-MMR
IEC 63245-2 specifies the following core components of a spatial wireless power transfer system based on multiple magnetic resonances:
- Power Source: Supplies current to transmitter coils, enabling the generation of magnetic fields necessary for wireless power transfer.
- Capacitor: Used to adjust the resonance frequency of transmitter coils and optimize the charging zone's size and efficiency.
- Inverter: Controls the phase of currents in transmitter coils, enabling efficient energy transfer and management of magnetic field dynamics within the charging zone.
- Transmitter Coils: Multiple coils generate overlapping magnetic fields, providing flexible and spatially distributed power delivery, minimizing null points and supporting multiple devices.
- Communication Module: Facilitates the detection of receiver devices and manages communication for optimization, control, and safety throughout the wireless power transfer process.
Functional Highlights
- 3D Charging Zone: The system is capable of creating a spatial, three-dimensional charging region where devices can receive power regardless of their exact position or orientation within the space.
- Quiet Zone and Null Points: SWPT-MMR systems manage the distribution of energy density (quiet zone) and address areas with minimal magnetic field (null points) for reliable power transmission.
- Resonance Frequency Control: The use of multiple magnetic resonances allows the system to adapt frequencies for optimal efficiency and compatibility.
Applications
Spatial wireless power transfer based on multiple magnetic resonances has a broad range of practical applications, including:
- Consumer Electronics: Enables charging of devices without precise alignment, useful for smartphones, tablets, wearables, and other portable devices.
- Automotive: Supports wireless in-cabin charging of passenger devices with greater flexibility and convenience.
- Industrial and Commercial Spaces: Facilitates wireless power delivery to robots, sensors, and terminals within dynamic or hard-to-reach environments.
- Smart Homes and Offices: Offers clutter-free, flexible charging zones embedded in furniture or architectural features.
By providing a unified reference model, IEC 63245-2:2022 supports interoperability, safety, and efficiency in the growing wireless power market.
Related Standards
- IEC 63245-1:2021 - Spatial wireless power transfer based on multiple magnetic resonances - Part 1: Requirements. Defines the essential requirements for SWPT-MMR systems.
- IEC 62827-3:2016 - Wireless power transfer – Management – Part 3: Multiple source control management. Offers guidance on multi-source wireless power control.
- IEC 63006:2019 - Wireless power transfer (WPT) – Glossary of terms. Standardizes terminology for consistency across wireless power applications.
For more information on the latest updates, refer to the IEC Webstore.
Summary: IEC 63245-2:2022 establishes a robust reference model for efficient, flexible, and safe spatial wireless power transfer based on multiple magnetic resonances, enabling innovative applications and driving global standardization in wireless charging technology.