New Regulation in China for Wireless Charging Devices
On May 30, 2023, the Chinese authorities introduced the "Provisional Regulations on Radio Management of Wireless Charging (Power Transmission) Equipment," a significant regulatory development for manufacturers and importers of wireless charging devices. The regulation, which came into force on September 1, 2024, outlines important technical and operational requirements for wireless chargers to maintain the integrity of radio frequencies and ensure product safety.
Key Points of the Regulation
Definition: The regulation defines wireless charging devices as equipment utilizing a magnetic coupling mechanism for non-beam near-field power transmission.
Scope: The regulation applies to:
Mobile and Portable Wireless Charging Devices: These must operate within specific frequency bands (100-148.5 kHz, 6765-6795 kHz, 13553-13567 kHz) and have a rated transmission power not exceeding 80W.
Wireless Charging Equipment for Electric Vehicles (including motorcycles): These devices must operate within the frequency bands of 19-21 kHz (22kW~120kW) and 79-90 kHz (not exceeding 22kW).
Compliance Requirements: Notably, the production or import of wireless charging equipment sold and used in China does not need to obtain SRRC approval. However, manufacturers must still adhere to the regulation’s technical specifications, including operating frequency and application scenarios, and ensure compliance with national standards regarding quality, electromagnetic radiation, and electrical safety. Additionally, manufacturers are required to provide detailed product instructions and prominently display the dedicated identification for wireless charging devices.
Implementation: The regulation will be enforced starting September 1, 2024. Wireless chargers manufactured or imported before this date may continue to be sold and used in accordance with the regulations.
The South China Morning Post (SCMP) reported that these new regulations are expected to significantly impact certain wireless charging products from Apple, particularly those utilizing the 15W wireless charging feature operating at 360 kHz, which falls outside the permitted frequency range. Consequently, these products may face a sales ban in China post-implementation. The SCMP highlights this as part of the broader compliance challenges faced by foreign electronics manufacturers operating in China.
Source: IB-Lenhardt AG and Partners (PDF in Chinese language only)
Additional Reporting: South China Morning Post
EMC Lab: Wireless Power Transmitter
Discover a test with Wireless Power Transmitter in the EMC lab in the series "Insight Lab" of IBL-Lab GmbH. The transmitter sends power to the reference receiver via magnetic field coupling. With a field strength measuring head we measure the field strength at a distance of 20 cm from transmitter and receiver over 6 minutes at 120 kHz frequency.