prasad1979
Member
- Joined
- 29 Nov 2012
- Messages
- 370
- Reaction score
- 305
Google to OEMs: Don’t use Qualcomm Quick Charge; USB-PD is the future
The proliferation of USB Type-C is making charging various devices easier than ever. Smartphones (other than the iPhone) and laptops are unifying under a single charging port, allowing any charger to plug into anything else. Today you can plug your Type-C phone into your Type-C laptop charger, and charging will happen. But because phones and laptops probably support different quick charging standards, the charging speed will be slower than it could be.
The two competing quick charging methods out there are the proprietary Qualcomm Quick Charge and the USB Power Delivery from the USB-IF standards body. Qualcomm has a near-monopoly in the high-end smartphone SoC market, so nearly every high-end device supports Qualcomm Quick Charge. Qualcomm SoCs don't really exist in the laptop market, so Type-C laptops from Apple, Google, and others use USB Power Delivery (USB-PD). Neither one is really better than the other, but the incompatibility means you're only getting basic charging speeds when you swap chargers.
To try aiming for quick charging unity, Google is telling Android OEMs to ditch Qualcomm's quick charge implementation and switch to USB-PD. Google seems really serious about this, as it has started to write quick charging language into the Android Compatibility Definition Document (CDD) that every OEM licensing Google's Android apps must follow.
Source;
Google to OEMs: Don’t use Qualcomm Quick Charge; USB-PD is the future | Ars Technica
The proliferation of USB Type-C is making charging various devices easier than ever. Smartphones (other than the iPhone) and laptops are unifying under a single charging port, allowing any charger to plug into anything else. Today you can plug your Type-C phone into your Type-C laptop charger, and charging will happen. But because phones and laptops probably support different quick charging standards, the charging speed will be slower than it could be.
The two competing quick charging methods out there are the proprietary Qualcomm Quick Charge and the USB Power Delivery from the USB-IF standards body. Qualcomm has a near-monopoly in the high-end smartphone SoC market, so nearly every high-end device supports Qualcomm Quick Charge. Qualcomm SoCs don't really exist in the laptop market, so Type-C laptops from Apple, Google, and others use USB Power Delivery (USB-PD). Neither one is really better than the other, but the incompatibility means you're only getting basic charging speeds when you swap chargers.
To try aiming for quick charging unity, Google is telling Android OEMs to ditch Qualcomm's quick charge implementation and switch to USB-PD. Google seems really serious about this, as it has started to write quick charging language into the Android Compatibility Definition Document (CDD) that every OEM licensing Google's Android apps must follow.
Source;
Google to OEMs: Don’t use Qualcomm Quick Charge; USB-PD is the future | Ars Technica
