Overview
IEC 62827-2:2017 - Wireless power transfer - Management - Part 2: Multiple device control management specifies a wireless power management protocol for coordinating wireless power transfer (WPT) to multiple devices within a wireless power management system (WPMS). The standard defines the roles and interactions of the management block of a power source and the management or coupler block of devices (and coupler block of the source), the structure of management frames and messages, and the procedures required to perform multiple-device control functions.
Keywords: IEC 62827-2:2017, wireless power transfer, multiple device control management, wireless power management protocol, WPMS.
Key Topics and Technical Requirements
- Functional scope: Initialization, association, WPT eligibility checks, general charging management (simultaneous, sequential, foaming, compound WPT), inter-device WPT, abnormal-status handling, and termination procedures.
- Protocol elements: Definition of frame formats, payload structure, frame types (data, acknowledgement), and data block types (request, response, notification).
- Identification and addressing: ID structures including unique coupler ID (UCID), group ID, WPMS ID and device ID for addressing and group management.
- Procedural rules: Step‑by‑step procedures for association, Group ID setup, scheduling/control of coils, sensing (current/voltage), full-charge and termination notifications, and abnormal condition management.
- Interoperability focus: Compatibility modes (direct and indirect control) and message APIs between application, management (MGMT), MAC, and coupler blocks to support multi-vendor implementations.
- Security & robustness (protocol-level): Authentication and management messages for safe WPT session establishment and abnormal-state handling (as described in message and procedure clauses and annexes).
Practical Applications
IEC 62827-2:2017 is applicable wherever a power source needs to manage wireless charging of multiple devices reliably and safely:
- Multi-device wireless charging pads and furniture-integrated chargers
- Public or commercial charging surfaces (airports, cafés, retail)
- Device hubs and docking stations managing several client devices
- Smart home and office surfaces that coordinate simultaneous or scheduled charging
- Systems requiring inter-device power transfer or device-to-device charging coordination
These use cases benefit from the standard’s definitions for scheduling, group control, device status reporting, and termination notifications.
Who should use this standard
- Hardware and firmware engineers designing WPMS controllers, coupler modules and power-source management blocks
- System integrators and product managers building multi-device wireless charging products
- Test laboratories and certification bodies validating interoperability and protocol compliance
- Standards bodies and technical leads aligning product families to IEC wireless-power management practices
Related Standards
- Other parts of the IEC 62827 series and complementary IEC/industry wireless power standards (refer to IEC catalogue for latest cross-references).