Windows 10: Changing Direction of Power Delivery (PD) over USB-C Port

I've a thinkpad P1 which can charge external devices connected to a USB-C port using Power Delivery (PD).


The PD external battery pack I have is able to charge the laptop but I can't get the laptop to charge the battery pack using a USB-C port.


How do you control the direction of Power Delivery on Windows?


It can be controlled with Linux, see below:

https://superuser.com/questions/1189839/usb-type-c-how-is-the-direction-of-power-delivery-controlled

:)

 

Etron Announces EJ888 USB Power Delivery Controller

Managing power delivery of up to 100 watts via Universal Serial Bus (USB) is an important step in enabling a flexible, standardized power management ecosystem. Etron Technology, Inc. (Taiwan GTSM: 5351) today announced its latest USB Power Delivery (PD) Controller IC - EJ888, based on the USB-IF's USB Power Delivery Rev. 1.0 specification, which enables USB power delivery from 10 watts to 100 watts, and significantly reduces device charging time. In addition, it makes power delivery more flexible by adding full bi-directional power that can be renegotiated as system power needs change with the end-user. EJ888 optimizes user mobility by allowing data transmission and power delivery to be combined on a single USB cable. Its advanced power voltage, power stream, and communication features enable low-power-consumption devices, such as phones and MP3 players, and even higher-power-consumption appliances, such as computer monitors and laptops, to be powered via USB.

In a modern life full of various kinds of consumer electronics, power supply voltage and current demands can vary from one cable, charger, and battery to another. In recent years, consumer demand for lower-carbon products and services is growing. USB power delivery is a new power-supply solution that has the potential to greatly reduce electronic waste by eliminating proprietary chargers.

"USB Power Delivery will help simplify the lives of consumers by providing a single-cable for data and power delivery up to 100 watts," said Jeff Ravencraft, USB-IF President & COO. "USB-IF member companies like Etron that incorporate USB PD into products and solutions further the efforts toward universal charging."

"For early market engagement, Etron's latest USB Power Delivery Controller IC EJ888 is based on the USB Power Delivery Rev. 1.0 specification. In addition, it supports USB-IF Battery Charging 1.2 for any portable device. The EJ888 Chip enables higher voltage and current in order to deliver power up to 100 watts, with 20V to the full 5A, via USB. Utilizing bi-directional power delivery, EJ188 automatically detects current sources and sinks, and performs a negotiated handshake via VBus. It allows users to access simple Plug-and-Charge via USB and meets the needs of USB PD developers," said Dr. Nicky Lu, Etron Technology Chairman & CEO.

Micro-USB is the de facto solution for device charging and USB Power Delivery enables the next significant move toward universal charging. The European Union now requires cellular phone vendors to use Micro USB for charging. In addition, the government of the People's Republic of China is envisioning a significant move toward universal charging based on USB. Etron is one of the leaders in delivering USB Power Delivery Controller ICs, including EJ888. Furthermore, the new USB PD market opportunity has the potential to promote the prosperity of the industry as a whole.

Etron will display and demonstrate its cutting-edge EJ888 product along with its comprehensive series of USB 3.0 controller ICs at Booth No. 35116 in South Hall 4 of the Las Vegas Convention Center at CES 2014 from January 7th to 10th.

 

USB 3.0 Promoter Group Announces Availability of USB Power Delivery Specification

The USB 3.0 Promoter Group, in conjunction with the USB 2.0 Promoter Group, today announced the completion of the USB Power Delivery specification, which enables increased power delivery through USB cables and connectors. The specification expands cable bus power capabilities in USB applications, supplying higher voltage and current to deliver power up to 100 watts over USB Power Delivery certified cables. It is capable of delivering higher power to charge notebook PCs and power external hard-disk drives, devices which previously did not receive adequate power from traditional 5V bus power.

The USB Power Delivery specification enables a switchable source of power without changing cable direction. Existing USB cables and connectors are also compatible with this specification and will coexist with the USB Battery Charging 1.2 specification as well as existing USB-bus powered applications.

“USB Power Delivery enables a path to greatly reduce electronic waste by eliminating proprietary, platform-specific chargers,” said Brad Saunders, USB 3.0 Promoter Group Chairman. “We envision a significant move toward universal charging based on this specification, most notably for charging notebook PCs using standardized USB power bricks or when connected to USB hubs and desktop displays that integrate USB Power Delivery capabilities.”

“The publication of the USB Power Delivery specification is an important step in enabling a flexible, standardized power management ecosystem,” said Peter Harrison, Director, Standards Collaboration, Nokia.

“We believe USB Power Delivery is the next big step in the USB evolution to provide high bandwidth data and intelligent power over a simple, single, ubiquitous cable,” said Robert Hollingsworth, Senior Vice President and General Manager of the USB Products Group at SMSC. “USB has always combined data and power over a single cable, and this is widely believed to be a major contributor to the present ubiquity of USB. USB Power Delivery builds on that success and adds full bi-directional power that can be renegotiated as system power needs change with the end-user.”

The USB 2.0 and 3.0 Promoter Groups developed the USB Power Delivery specification and have transitioned the specification’s management to the USB-IF. The USB Promoter Groups are now accepting adopters of the USB Power Delivery specification. To download both the USB Power Delivery specification and adopter agreements, visit this page.

 

I'd like to add USB Type-C to my desktop. Advice?

You can try USB 3.1 UPD PANEL | Motherboard Accessories | ASUS Global

• Dual 10Gbit/s reversible USB 3.1 Gen 2 Type-C ports for your PC’s front panel

• USB Power Delivery technology for up to 100W USB charging

• Flexible installation, switching between front 5.25-inch front panel and rear PC expansion card