Physical Address
304 North Cardinal St.
Dorchester Center, MA 02124
IEC 62827-1:2016 – Wireless Power Transfer Management – Part 1: Common Components
🔋 IEC 62827-1 establishes the foundational architecture for managing wireless power transfer across multiple sources and devices simultaneously – a key step beyond 1:1 charging toward wireless power networks.
💡 Four reference models: 1:1, 1:N, M:N, and WPMS-R with relay transmitters for extended range wireless power distribution.
1. Scope and System Architecture
IEC 62827-1:2016 specifies the common components of management for multiple sources and devices in a wireless power transfer (WPT) system. The standard defines reference models for possible WPT system configurations, including 1:1 (single source to single device), 1:N (single source to multiple devices), M:N (multiple sources to multiple devices), and configurations incorporating WPMS-R (Repeater) units.
The Wireless Power Management System (WPMS) is defined as the overall management framework capable of transferring wireless power from one or multiple sources to one or multiple devices using wireless communication. This breaks away from conventional 1:1 wireless charging pads toward flexible, scalable power distribution networks applicable to audio, video and multimedia equipment.
2. Key Components and Reference Models
The standard defines several critical components: WPMS-S (Source), WPMS-D (Device), and WPMS-R (Repeater/Relay). A WPMS-R functions as both a receiver from sources and a transmitter to devices, enabling extended range and flexible deployment.
1:1 Model: Single source communicates with and delivers power to a single device – the simplest configuration with standardized management protocol.
1:N Model: Single source simultaneously manages power delivery to multiple devices within its Wireless Power Transfer Zone (WPTZ).
M:N Model: Multiple sources coordinate to serve multiple devices, enabling room-scale or facility-scale wireless power distribution.
WPMS-R Model: Relay transmitters extend effective range by receiving power from a source and retransmitting to devices further away.
3. Engineering Applications and Design Considerations
For engineers designing WPT systems, the common component framework addresses several practical challenges. Power receivers are classified into two categories: those with battery storage and those without (e.g., speakers, displays requiring continuous power). Battery-powered devices accept intermittent charging while non-battery devices need stable continuous power.
The standard applies to audio, video and multimedia equipment per IEC TC 100 scope, but reference models are broadly applicable. Key design considerations include coil geometry for efficient coupling, communication protocol selection (NFC or Bluetooth LE for device discovery), foreign object detection, and power transfer efficiency ranging from 60% to 85% depending on alignment and distance.
WPMS Reference Model Comparison
| Model | Configuration | Use Case | Complexity | Efficiency |
|---|---|---|---|---|
| 1:1 | One source, one device | Single device charging pad | Low | 75-85% |
| 1:N | One source, many devices | Charging table or surface | Medium | 65-80% |
| M:N | Many sources, many devices | Room-scale power distribution | High | 60-75% |
| WPMS-R | With relay repeater | Extended range deployment | Medium-High | 55-70% |
Frequently Asked Questions
Q1: What is the difference between IEC 62827-1 and Qi wireless charging?
Qi focuses on physical power transfer and communication between a single charger and device. IEC 62827-1 addresses higher-level management of multiple sources and devices, enabling coordinated power distribution across a network rather than individual charging stations.
Q2: What applications benefit from M:N wireless power management?
Smart home environments with multiple devices (speakers, displays, sensors), office spaces with laptops and phones, and industrial settings with distributed sensors and actuators all benefit from coordinated multi-device wireless power.
Q3: How does WPMS-R extend wireless power range?
The WPMS-R receives power wirelessly from a source, then acts as a source for devices further away, creating a daisy-chain effect that extends coverage beyond a single transmitter’s range.
