How does 13.56 MHz NFC achieve power delivery and data communication at the same time?
A common puzzle for embedded developers: most wireless-charging solutions separate the power path from the data link.
NFC-WLC shares one single RF channel, utilizing the same alternating magnetic field for both power supply and communication.
1. Inductive coupling transfers energy to charge the battery.
2. Load modulation on the receiver side enables bidirectional data exchange. The charger can read device status, battery voltage, temperature, and trigger protection mechanisms - all without extra wiring. This dual-mode feature makes it well-suited for smart tags and wearable devices.
A common puzzle for embedded developers: most wireless-charging solutions separate the power path from the data link.
NFC-WLC shares one single RF channel, utilizing the same alternating magnetic field for both power supply and communication.
1. Inductive coupling transfers energy to charge the battery.
2. Load modulation on the receiver side enables bidirectional data exchange. The charger can read device status, battery voltage, temperature, and trigger protection mechanisms - all without extra wiring. This dual-mode feature makes it well-suited for smart tags and wearable devices.
