Wireless Qi Phone Charger^* Operation

How Wireless Phone Chargers^* Work

Wireless phone chargers^* operate on the principle of electromagnetic induction. Inside the charging pad, there is a coil of wire in which an alternating current (AC) is passed. Inside Qi-compatible devices, there is also a coil of wire. When AC is passed through the coil in the charging pad, a magnetic field is created. This alternating magnetic field passes through the windings in the mobile device, which induces a voltage in the device’s coil. This voltage is then rectified to direct current (DC), which the device’s battery can store.

Schematic of Wireless Qi Charging

Charging Tips for Better Performance

A regular test signal is sent by the charging pad to check for a capacity or resonance change, which indicates that a Qi-compatible phone is present. Proximity to the pad is key. Thick phone cases or metallic objects between the phone and pad (e.g., coins and paper clips) may affect charger operation.

Wireless Qi Phone Charger^* Diagnosis

Pitstop PS716 provides diagnostic tips for Qi wireless phone chargers^* in addition to the repair information found in the Shop Manual. For further operation details, the Owner’s Manual is a good place to start. The Kia Features and Functions channel on YouTube^™* also has a great introduction to the wireless phone charging^* system: Click here to watch.

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