Qi-v1.3 FOD Reference Foreign Object – Foreign Object Detection Test Tool for Wireless Charging

Qi-v1.3 FOD Reference Foreign Object – Wireless Charging Detection Test Tool

The Qi-v1.3 FOD Reference Foreign Object is a standardized reference test object manufactured by KingPo, specifically designed to verify the foreign object detection (FOD) performance of wireless charging transmitters. Fully compliant with the Qi-v1.3 specification, this reference object simulates typical metal or high-loss foreign objects that could cause excessive heating during charging, allowing manufacturers, testing labs and certification bodies to confirm FOD detection thresholds, power rollback and thermal protection.

In Qi-v1.3 compatible wireless charging products (phones, earbuds, power banks, automotive chargers, wearables), undetected foreign objects (coins, keys, foil) can lead to dangerous overheating, fire risk or efficiency loss. The KINGPO Qi-v1.3 FOD Reference Foreign Object provides a repeatable, precise test piece to evaluate FOD system reliability and safety, ensuring full compliance with Qi-v1.3 and related wireless charging standards.

This reference object features accurate geometry, material properties and durability, delivering consistent test results for CE, UL, CB Scheme, CCC and Qi certification processes.

Qi-v1.3-FOD Reference Foreign Object

Annex A Reference Foreign Object construction (normative)
A.1 Reference Foreign Object #1 (RFO#1)

Core Role & Purpose

The Qi-v1.3 FOD Reference Foreign Object is used to:

• Verify foreign object detection sensitivity and response time
• Test power reduction or shutdown when foreign objects are present
• Confirm compliance with Qi-v1.3 FOD requirements
• Evaluate thermal safety and efficiency under simulated interference

It replicates real-world foreign object scenarios, ensuring charger safety.

Professional Construction & Technical Precision

Key features include:

• Design: Qi-v1.3 standard reference foreign object geometry and material
• Material: High-loss or metallic composition for accurate heating simulation
• Repeatability: Consistent size and properties for reliable test-to-test results
• Durability: Robust construction for frequent lab and certification use
• Compatibility: Works with Qi-v1.3 transmitters and test setups

These ensure precise, repeatable FOD performance validation.

Primary Use Cases & Business Value

The reference object supports key stages:

• R&D FOD Validation — Test transmitter detection algorithms and thermal rollback in new designs
• Certification Reporting — Labs generate data for Qi-v1.3, CE, UL, CB Scheme, CCC submissions
• Production QC — Manufacturers verify FOD consistency in batch production
• Failure Analysis — Investigate FOD-related heating or shutdown issues in returned products

It helps deliver safe wireless chargers, reduce field risks and accelerate Qi-v1.3 certification.

Compliance & Regulatory Assurance

Fully compliant with Qi-v1.3 foreign object detection requirements. Aligned with CE, UL, CB Scheme, CCC for wireless charging devices. Regular inspection recommended.