Adaptive resonance

You have probably heard the stories about how "magnetic resonance" is fundamentally different from "magnetic induction".

These stories are misleading. Wireless power transmitters based  on "magnetic resonance" and "magnetic induction" both use coils, AC currents, and magnetic fields. Both techniques induce currents in a receiver coil using the physics principles you learmed at high school. The difference is in operating points and the addition of flux lenses (auxillary coils) that help extend the range.

The Qi interface standard allows manufacturers of wireless chargers freedom to choose their own technique. Qi products are not limited to magentic induction. It is perfectly possible to make Qi-compatible wireless chargers that use magnetic resonance techniques.

You can see that demonstrated in this YouTube video:


The wireless power consortium established a global standard, called Qi. This standard leaves room for innovation, and room to adapt products to the needs of many different consumers and markets.

Qi is not about promoting a specific technology. You can choose your own implementation and you will not be locked in a proprietary solution.

Adaptive resonance