Overview
IEC 63563-2:2025 - Qi Specification version 2.0, Part 2: Glossary is the IEC international standard that compiles the authoritative definitions, acronyms and symbols used throughout the Qi v2.0 wireless power specification. Targeted at flat-surface wireless power systems (for example, mobile phones and tablets) operating up to 15 W, this glossary ensures consistent terminology for manufacturers, test labs, implementers and conformity assessors.
Key topics and what the standard covers
- Standardized terminology for wireless power system components and concepts:
- Power Transmitter / Power Receiver, Primary Coil / Secondary Coil, Primary Cell, Active Area, Interface Surface, Air Gap
- Power Signal, Transmitted Power, Received Power, Load Power, Supply Power
- Operational concepts and control terms:
- Operating Point, Operating Volume, Power Transfer Contract, Control Point, Communications and Control Unit (CCU)
- Profiles and protocols:
- Baseline Power Profile (BPP), Extended Power Profile (EPP), Baseline Protocol, Extended Protocol
- Safety, detection and performance:
- Foreign Object, Foreign Object Detection (FOD), Friendly Metal, Shielding, Reference Quality Factor
- Security and cryptography-related terms:
- Authentication, Nonce, Certificate, Certificate Authority (CA), Certificate Chain, Root/Intermediate/Leaf Certificates, Revocation, Revocation List, Product Unit Certificate, Manufacturer CA Certificate
- Identifiers and test concepts:
- WPID (48-bit Qi device identifier), Test Power Transmitter / Test Power Receiver, Reserved bits/values
Practical applications - who uses this standard
- Device manufacturers (smartphones, tablets, accessories) use the glossary to align product specifications and firmware with Qi v2.0 terminology.
- Firmware and hardware engineers rely on consistent definitions for implementing communication, authentication and power control features.
- Test laboratories and certification bodies reference the glossary during conformance testing and certificate issuance to avoid ambiguous interpretation.
- Standards writers, product managers and documentation teams use it to create compliant user guides, regulatory filings and interoperability documentation.
- Security engineers use the authentication and certificate definitions to design and validate secure device identity and update processes.
Related standards and references
- This glossary is part of the Qi Specification v2.0 suite developed by the Wireless Power Consortium and published as an IEC standard. Implementers should consult other parts of the Qi Specification (protocol, power profiles, test procedures) and IEC publication resources (Electropedia) for complete technical requirements.
Keywords: IEC 63563-2:2025, Qi Specification version 2.0, glossary, wireless charging, wireless power, 15 W, definitions, acronyms, symbols, Power Transmitter, Power Receiver, FOD, authentication, certificate chain, WPID.