Higher power USB-C will deliver 240W

Today’s USB-C charging can support up to 100 watts. But that’s not enough for all gaming laptops and other power-hungry devices. There seems to be real need for more USB power because some manufacturers have sold off-spec 130W USB-C adapters. The new standard capacity of 240 watts is enough to run larger monitors, printers, gaming laptops and other devices.

The USB Implementers Forum (USB-IF) has just announced that it’s more than doubling the amount of power you can send over a USB-C cable from 100W to 240 watts.
https://www.theverge.com/circuitbreaker/2021/5/25/22453936/usb-c-power-delivery-extended-power-range-epr

The USB-C Release 2.1 spec more than doubles the power output of the all-in-one cable.

The USB Implementers Forum (USB-IF) has just announced that it’s more than doubling the amount of power you can send over a USB-C cable to 240 watts. This is something that the USB-IF is calling “Extended Power Range” or EPR for short.

This means you’ll eventually be able to plug in the same kind of multipurpose USB-C cable you currently use on lightweight laptops, tablets, and phones to charge all but the beefiest gaming laptops (which will still need an ugly barrel jack and a proprietary power brick to charge).

You’ll need new USB-C chargers and cables to take advantage of the new spec, of course. A cable will need to support up to 5A and 50V to be compliant.

This gives the hint that the extra power capability is made possible by increasing the supplt voltage. 5A*48V=240W. In addition to higher voltage I expect some extension to the USB power delivery device handshaking specifications to reliably tell when this higher voltage is appropriate, because sending 48V to an older device expecting 20V 5A maximum would most propably fry it.

Stephen Shankland / CNET:
USB standards body unveils its USB-C 2.1 revision, which supports power up to 240W, up from 100W currently, aimed at devices like 4K displays and gaming laptops — An upgrade to the USB-C standard will accommodate levels of up to 240 watts, an improvement that could let you plug power-hungry devices …
https://www.cnet.com/news/usb-c-upgrade-delivers-a-whopping-240w-for-gaming-laptops-and-other-power-hungry-devices/

An upgrade to the USB-C standard will accommodate levels of up to 240 watts, an improvement that could let you plug power-hungry devices like gaming laptops, 4K monitors and printers into the universal port.

The USB Implementers Forum (USB-IF), the industry group that develops the technology, revealed the new power levels in the version 2.1 update to its USB Type-C specification on Tuesday. The new 240-watt option is called Extended Power Range, or EPR.

Cables supporting 240 watts will have additional requirements to accommodate the new levels. And USB-IF will require the cables to bear specific icons “so that end users will be able to confirm visually that the cable supports up to…240W,” USB-IF said in the specification document.

USB Type-C® Cable and Connector Specification Revision 2.1
https://usb.org/document-library/usb-type-cr-cable-and-connector-specification-revision-21

The USB-C specification isn’t the only one covering how USB ports and cables work. Today’s mainstream USB 3.2 and brand-new USB 4 govern how data is sent over cables. But USB 4 is rare, just arriving now in newer laptops.

9 Comments

  1. Tomi Engdahl says:

    https://www.androidpolice.com/2021/05/26/usb-c-just-made-even-your-most-powerful-chargers-look-obsolete/

    An upcoming expansion of the USB-C standard in version 2.1 will expand officially-supported power output for the ubiquitous port. In the initial specification of USB-C 2.1 published yesterday, the USB Implementers Forum outlined “Extended Power Range,” which boosts maximum power output to 240 watts. That’s enough energy to charge up the most demanding gaming laptops, or even a full television. It wouldn’t be enough for, say, a full-power gaming PC or a PS5, but pretty much anything that you’d want to move around could charge off the same standard port.

    The Implementers Forum expects devices with Extended Power Range to become available before the end of the year. While it’s hard to imagine Android devices or other mobile gadgets needing much more than the current 100-watt limit, extending chargers to 200 or more could let a single multi-port GaN charger supply power to a phone, tablet, monitor, and a host of accessories, all on a single outlet.

    Reply
  2. Tomi Engdahl says:

    A single USB Type-C cable will soon be capable of powering an entire gaming laptop
    By Alan Dexter 1 day ago
    The idea of generic power bricks is surprisingly exciting.
    https://www.pcgamer.com/usb-type-c-to-support-up-to-240w-power-delivery/?utm_campaign=socialflow

    The USB-Implementer’s Forum has upgraded the specification for power delivery on USB Type-C 2.1 to handle up to 240W. Currently, the standard tops out at 100W, which means it simply doesn’t deliver enough power for lots of meatier devices. Upping the voltage from 20V to 48V should give manufacturers enough room to make it a truly universal charging standard.

    Plenty of thin and light laptops manage to get by using USB Type-C connectors, although these tend to stay well below 100W, with 65W chargers being surprisingly common. Throw in a serious high-end CPU and a discrete graphics card though, and you’ll soon be nudging up to 200W or more.

    It’ll take a while for manufacturers to start implementing the new standard, and to adhere to the new specification. Manufacturers will need to comply with the USB PD Extended Power Range (EPR) specification. Any cabling will of course need to comply, and will need to handle up to 50V as well.

    Reply
  3. Tomi Engdahl says:

    USB-C levels up and powers up to deliver 240W in upgraded power delivery spec
    One charger to rule them all … eventually, maybe
    https://www.theregister.com/2021/05/27/usb_pd_240w_upgrade/?utm_source=dlvr.it&utm_medium=facebook

    Reply
  4. Tomi Engdahl says:

    uudet 2.1-määritykset, tehonsyötön PC-protokollan (power delivery) uuden version. Nyt kaapelit tukevat nimellisarvoltaan 5 A virtaa kuten aiemminkin, mutta jätti on nostettu 20 voltista 48 volttiin.

    Reply
  5. Tomi Engdahl says:

    Uusi PD-protokolla on selvästi aiempaa tiukempi. Valittavana on kolme uutta kiinteää jännitettä: 28 V (yli 100 W), 36 V (yli 140 W) ja 48 V (yli 180 W teholle) aiempien määriteltyjen 5, 9, 15 ja 20 V kiinteiden jännitteiden rinnalle. Uusi säädettävä jännitetila mahdollistaa jännitteen valinnan 15 voltista johonkin kolmesta uudesta maksimijännitteestä. Laitteen tarpeen mukaan syöttö voidaan säätää 100 millivoltin välein.

    Reply
  6. Tomi Engdahl says:

    Sam Byford / The Verge:
    Xiaomi demos fully charging a 4,000mAh battery in eight minutes over a 200W “HyperCharge” system or in 15 minutes with 120W wireless charging

    Xiaomi says it can now fully charge a phone in eight minutes at 200W
    New ‘world records’ in wired and wireless charging
    https://www.theverge.com/2021/5/30/22461435/xiaomi-fast-charging-world-record-200w-wired-120w-wireless?scrolla=5eb6d68b7fedc32c19ef33b4

    Xiaomi has shown off its latest fast charging tech demo, and consequently is claiming the new world records for both wired and wireless charging speeds. Using a modified Mi 11 Pro with a 4,000mAh battery, Xiaomi says it’s able to fully charge the phone in 8 minutes over a 200W wired “HyperCharge” system, or in 15 minutes with 120W wireless charging.

    Charging speeds are a frequent battleground for Chinese smartphone companies, who often release demonstrations of breakthroughs that may or may not show up in final products. Two years ago, for example, Xiaomi announced a 100W system that could charge a 4,000mAh battery in 17 minutes, while last year’s Mi 10 Ultra filled up in 23 minutes at 120W — though it did have a bigger 4,500mAh battery.

    Oppo announces 125W tech that charges phones in 20 minutes
    And the world’s fastest wireless charging
    https://www.theverge.com/2020/7/15/21325289/oppo-125w-fast-charging-65w-airvooc-wireless-charger

    Reply
  7. Tomi Engdahl says:

    USB Promoter Group Announces USB Power Delivery Specification Revision 3.1Specification defines delivering up to 240W of power over USB Type-C®
    https://www.usb.org/sites/default/files/2021-05/USB%20PG%20USB%20PD%203.1%20DevUpdate%20Announcement_FINAL.pdf

    The USB Promoter Group today announced the release of the USB Power Delivery (USB PD) Revision 3.1 specification, a major update to enable delivering up to 240W of power over the USB Type-C® cable and connector. Prior to this update, USB PD was limited to 100W via a solution based on 20V using USB Type-C cables rated at 5A. The USB Type-C specification has also been updated with Release 2.1 to define 240W cable requirements, and with the updated USB PD protocol and power supply definition, this extends the applicability of USB PD to a large number of applications where 100W wasn’t adequate. The new USB PD architecture defines a much more stringent power negotiation protocol that helps to ensure that access to and use of this higher power capability can be done safely. It should be noted that safety requirements for products that use power in the range of 100 – 240W are also more stringentthan lower power products and are defined by the applicable safety specifications dictated by the regulations for each country where the products will be sold.

    Key characteristics of the USB PD 3.1 specification include:
    •A choice of three new fixed voltages: 28V (above 100W), 36V (above 140W) and 48V (above180W) joining previously defined 5V, 9V, 15V and 20V fixed voltages.
    •A new adjustable voltage mode enabling a range from 15V to one of three maximum voltages (28V, 36V, or 48V) depending on the available power allowing the device being powered to request specific voltages to a 100 mV resolution.

    “The 3.1 revision to the USB Power Delivery specification, which includes the capability to provide up to 48 V and 240 W of power, will help enable additional design opportunities for current and new users of USB Type-C technology,” said Deric Waters, senior member of technical staff at Texas Instruments.

    Reply

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