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Broadcom Intros Wireless Charging Chip For Smartphones That Supports Competing Standards

Wireless charging is becoming a popular feature among the latest Android smartphones. This allows the device to be charged without the need to plug it into a charger. All that needs to be done is to place the smartphone near a wireless charging pad or stand and it will automatically work.

Broadcom BCM59350

One problem with this feature though is that there are at least three different standards used. If you own different smartphones that supports different wireless standards then you will also need to carry different chargers. Broadcom aims to fix this by introducing a new multi-standard chip that supports all of the current wireless charging protocols.

The Broadcom BCM59350 wireless charging chip supports the A4WP, PMA, and WPC standards while staying at the same size as other chips that only support one standard.

Reinier van der Lee, director of product marketing, mobile platforms at Broadcom, said that “At my house, I’m the guy who has to figure out which charger goes with which device. There’s a real market need for a universal charging solution, and it should be wireless.”

He further adds that “Available today, Broadcom’s new wireless charging technology enables device manufacturers to build multi-standard wireless power receivers, alleviating consumer confusion and driving the benefits of Rezence technology into the mainstream. Broadcom delivers the complete package — interoperable wireless charging, leading mobile connectivity and WICED Smart technology for charging pads, simplifying the development process and enabling a fully interoperable ecosystem to our customers.”

Key Features

  • Efficient — Up to 88 percent AC to DC efficiency
  • High Performance — Supports up to 7.5W for faster charge time than standard USB and wall chargers
  • Boost Mode — Broadcom ensures charging performance with 50 percent less voltage
  • Support for automatic selection between standards and single mode operation
  • NFC Coexistence — Broadcom’s wireless charging design ensures acceptable NFC performance
  • Implementation Flexibility — Can be designed in a smartphone motherboard or battery cover
  • Small PCB Footprint — Broadcom’s design supports multi-standards in the same size as a single standard solution
  • Low Cost — Broadcom’s solution has a minimum bill of materials cost with no external active components, excluding WICED Smart

What’s probably one of the best features of the BCM59350 is that it can support charging of up to 7.5 watts. This is higher than what a USB port or a wall charger can provide and translates to a lower amount of time needed to charge a smartphone. There’s even a Boost Mode feature that charges with 50 percent less voltage.

Broadcom designed this chip to be convenient to use as it van support different mobile devices that have different power requirements. A consumer simply has to place their device anywhere in the charging area

via broadcom

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