USB Recharge port on HP Chromebook 11: One port to rule them all

October 14, 2013

A newborn  just enter entered in the always growing family of Chromebook devices: the HP Chromebook 11.


What captured my attention is the unusual charge solution: not anymore hp-chromebook-11-micro-usba dedicated jack to connect an external charger, but a microUSB, as described by JR Raphael in his review. Like our portable devices, smartphones or tabled. This is a great news in my perspective, at least for two reasons.


It is the first step to standardize the recharger mechanism: no more custom and proprietary jacks and charger, but an universal main adapter with USB connection compatible with all our device, hopefully with more then one USB port to recharge many device at a time. One Ring to rule them all. This will impact the final price of the device, too.

Power Flexibility

A single connector will simplify our life. But soon users will ask to have more flexibility. To recharge batteries in a faster mode delivering more power and to use this port to recharge portable device as well, or to supply external peripherals. In one word, USB Power Delivery technology. Able to deliver up to 100w over USB cable.


This device is the first step in the direction of simplifying our life among different and proprietary chargers, jacks and connectors. I hope to see more device implementing this bold solution with a step forward toward USB power delivery and more peripherals and devices taking advantage from this technology.


USB Power Delivery at the Intel IDF13 in San Francisco

September 30, 2013

I attended in San Francisco the Intel Development Forum 2013 (IDF13).

My interest was obviously for the USB Power Delivery and my target was to establish new contacts with the USB-PD players and to collect information of new or incoming products.


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The Most Promising Technologies for Super Fast Charging

September 27, 2013

The dream of any user of mobile devices is to have its batteries always charged. The second is to have the possibility to charge the batteries as fast as possible, while preserving battery life.


While the identification and introduction of new battery technologies is a complex innovation process with a long time to market, a big effort is spent to define and impose new ways to deliver more power in charging mode, making the life of the user more and more easier.

This approach involves the definition and adoption of new standards based on common and shared specifications and it involves the creation of a new ecosystem of connectors, cables, chargers, adapters and semiconductor solutions. The time to market in this case is much faster and new solutions are popping-up in the last year.

The most promising alternatives are:

  • Wireless Charging
  • USB Power Delivery
  • Qualcomm Quick Charge

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CHY100 from Power Integration: first component compatible with Qualcomm® Quick Charge 2.0

September 13, 2013

In the previous post I introduced the Qualcomm® Quick Charge technology as competitor of the Usb Power Delivery in the rush to find faster and safer battery charge solutions. And we mentioned the CHY100 from Power Integration as the first component in the market compliant with this proprietary technology.

As in the Power Integration announcement: “…Used in combination with Power Integrations’ AC-DC switcher ICs, the CHY100 incorporates all the necessary elements required to add Quick Charge 2.0 functionality to AC-DC wall chargers. The CHY100 detects commands from a Quick Charge 2.0-enabled device, such as a cellphone handset, and adjusts the output of the AC-DC wall charger to enable increased power delivery to the device’s battery. …

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Alternative to USB-Power Delivery: Qualcomm® Quick Charge Technology

September 4, 2013

Every user of portable devices dreams to recharge batteries much faster preserving the battery life and integrity. Driven by this market demand, many charge solutions are entering the mobile market with new technologies, outstanding performances and different levels of standardization and complexity.

In my blog, I already posted a lot about USB Power Delivery. This is for sure the solution offering the highest level of standardization, flexibility and performances. But at the moment no product available and the related ecosystem (cables, connectors) not yet available.

quick-charge In competition with USB Power Delivery, the Qualcomm® Quick Charge technology constitutes a simpler and viable alternative. Using the USB port, this technology enables a simple but efficient way to negotiate the voltage, the delivered current and the power limits between battery device and charger.


Currently Qualcomm offers a family components based on the 1.0 Quick charge version and up to 70 products are ready to manage this technology with  dedicated PMIC.  The 1.0 version delivers up to 2.5A with a proprietary negotiation on the USB port pins to Automatic Power Source Detection (APSD) and Automatic Input Current Limit (AICL). The second generation (2.0) is a step forward in terms of power performances and additional features to improve robustness and flexibility, in primis the Automatic Input Voltage Detection (AIVD) and High Voltage Dedicated Charging Port (HVDCP) . In this case you can deliver up to 60W to recharge the battery of your portable device.

CHY100_family Qualcomm says “We anticipate that devices and wall chargers with Quick Charge 2.0 will be available for purchase by early 2014; all smartphones and tablets with a Qualcomm Snapdragon 800 processor will have Quick Charge 2.0. Snapdragon 800 processors are an entire system-on-a-chip and feature a CPU, GPU, DSP, LTE Modem and much more, enabling UltraHD video, high-end 3D gaming, 7.1 surround sound, and up to 55 Megapixel image captures, so being able to quick charge means less time charging and more time doing!“.

Partner of Qualcomm on this technology, Power Integrations announced recently the CHY100,  a Quick Charge 2.0 solution to cover wall charger and AC/DC applications. Next post will be dedicated to this device in order to better understand the Quick Charge 2.0 standard from device specifications.


IDF13 San Francisco

August 22, 2013

This year I will attend the Intel Development Forum (IDF13) in San Francisco on Sept 10-12 and I will be in bay area all the week.


I’m sure I will meet a lot of people and see great new technologies and applications. I hope to enlarge my network of contacts. in particular regarding USB Power Delivery.

If you’re going to attend and you have interest on USB Power Delivery in particular, It will be a pleasure to meet you and exchange views and thoughts.

Feel free to contact me at andrea.cologneseATcanovatech.com (replace AT with @).

See you there.


USB Power Delivery Showcase from INTEL

July 11, 2013

At the Technology Showcase at IDF Beijing, INTEL demonstrated a typical application of the USB Power Delivery feature: a portable PC delivering through a USB2.0 connection video streaming at 480Mbit/s (not really a big deal) and at the same time the power to supply a LCD monitor.


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