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Thread: USB 2
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12th November 2009 16:19 #1Registered User
Join Date: Apr:2004
Location: MainaTown
Posts: 160
USB 2
GPS 5v, 2A. , USB, - 0.5 ?
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12th November 2009 16:34 #2
Drecky,
2 :
1. USB - , ;
2. ( GPS- , , ). LiIon , . , 0,5 , .
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Last edited by nickarsow; 12th November 2009 at 16:51.
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12th November 2009 16:41 #3
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12th November 2009 16:59 #4
USB- 0.5. :
In Battery Charging Specification[33], new powering modes are added to the USB specification. A host or hub Charging Downstream Port can supply a maximum of 1.5 A when communicating at low-speed or full-speed, a maximum of 900 mA when communicating at high-speed, and as much current as the connector will safely handle when no communication is taking place; USB 2.0 standard-A connectors are rated at 1500 mA by default. A Dedicated Charging Port can supply a maximum of 1.8 A of current at 5.25 V. A portable device can draw up to 1.8 A from a Dedicated Charging Port. The Dedicated Charging Port shorts the D+ and D- pins with a resistance of at most 200Ω. The short disables data transfer, but allows devices to detect the Dedicated Charging Port and allows very simple, high current chargers to be manufactured. The increased current (faster, 9W charging) will occur once both the host/hub and devices support the new charging specification.ASRock B85 Pro4, Pentium G3240, DD3 8GB/1333MHz, 120GB SSD + 1TB + 640GB HDD
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12th November 2009 17:19 #5
Drecky,
- . USB 35 . . 0,5 1 2. 2 - .
USB 2.0 500 , USB 3.0 , .Last edited by nickarsow; 12th November 2009 at 18:56.
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12th November 2009 18:57 #6Registered User
Join Date: Apr:2004
Location: MainaTown
Posts: 160
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