Mul­ti­ple De­vices, One Charger: The Wait Shall Soon be Over!

If your mo­bile phone can act as the erst­while pager, PDA, gam­ing con­sole, ra­dio, cam­era, GPS de­vice, among oth­ers, it is only log­i­cal to ex­pect a sin­gle charger pow­er­ing your lap­tops, tablets, phones and even ex­ter­nal hard drives

PCQuest - - PORTADA -

The next time you try to pack in a va­ri­ety of charg­ers in your hand lug­gage be­fore head­ing for the air­port, you might re­al­ize that there is ac­tu­ally just one to be car­ried. The same port in your lap­top which you use to charge that tablet and power the por­ta­ble hard drive could now be used to charge the lap­top it­self, thanks to bidi­rec­tional sup­port. The USB 3.0 Pro­moter Group, in con­junc­tion with the USB 2.0 Pro­moter Group, 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.”

To down­load both the USB Power De­liv­ery spec­i­fi­ca­tion and adopter agree­ments, visit http://bit.ly/BDuM7.

In­dus­try Sup­port for Power De­liv­ery

“The publi­ca­tion of the USB Power De­liv­ery spec­i­fi­ca­tion is an im­por­tant step in en­abling a flex­i­ble, stan­dard­ized

— Hiren Me­hta 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.”

“As a found­ing mem­ber of the USB 3.0 Pro­moter Group, Texas In­stru­ments sup­ports the re­lease of the USB Power De­liv­ery spec­i­fi­ca­tion,” said Steve Tom, prod­uct man­ager for Texas In­stru­ments’ USB power prod­ucts. “Texas In­stru­ments is com­mit­ted to en­abling new ap­pli­ca­tions for USB Power De­liv­ery by of­fer­ing in­no­va­tive so­lu­tions in this space.”

Im­pli­ca­tions of USB PD to users

As an SMB, if you are con­sid­er­ing to ex­pand and open a new of­fice in the near fu­ture, you might want to pur­chase equip­ment that is cer­ti­fied for USB Power De­liv­ery. This will af­fect the num­ber of power sup­ply points that you will need for your new of­fice. You may also want to pur­chase sys­tems that have the high­est num­ber of USB ports.

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