wireless charging SoCBroadcom Corporation (Irvine, CA) introduced a new multi-standard smartphone power management unit (PMU) that drives Rezence technology into the mainstream while providing compatibility with existing deployed standards. When combined with its WICED (Wireless Internet Connectivity for Embedded Devices) Smart family of SoCs and software for the charging pad, the company asserts manufacturers can now build complete and broadly compatible end-to-end wireless charging solutions. The BCM59350 wireless charging PMU enables automatic selection between specifications from all three leading standards organizations including the Alliance for Wireless Power (A4WP), Power Matters Alliance (PMA) and Wireless Power Consortium (WPC) for OEM flexibility.  A4WP uses resonant technology, called Rezence, that allows consumers to "drop and go," placing multiple devices on a single charging surface without the trouble of accurate positioning or alignment. Features include:

  • Up to 88 percent AC to DC efficiency.
  • Support up to 7.5 W for faster charge time than standard USB and wall charger.
  • Boost mode – The company asserts it enables charging performance with 50 percent less voltage.
  • Support for automatic selection between standards and single mode operatio.n
  • NFC coexistence.

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