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10-W Wireless power Transmitter-Receiver ICs [Chip Ideas]
posted November 24 2014 19:26.17 by Giorgos Lazaridis




Wireless power transmission is the future of portable devices, waterproof and dustproof, the next step that is coming ever so closely. Texas Instruments released their first (and as they claim world's first) fully integrated 10 Watt wireless charging transmitter receiver chips, the BQ500215 and the BQ51025.

The receiver part, the BQ51025 has a programmable voltage output of 4.5 to 10 V with an efficiency close to 84% at 10-W operation. The footprint of the chip is relatively small, 3.6mm by 2.89mm.

The transmitter is the BQ500215. It is a fixed-frequency 10W digital wireless power controller and it is compatible with the 5-W Qi receivers already in the market, making it a flexible solution. It has a built-in enhanced foreign object detection (FOD) to detect objects in the proximity before transmitting any poewr, and it actively reduces power if excessive loss is detected.

Follow these links to read more about these chips:
  • BQ500215 Fixed Frequency 10W WPC1.1 Wireless Power Transmitter
  • bq51025 10-W WPC Compliant Single Chip Wireless Power Receiver

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