And don't draw more than half an amp because the voltage will drop off
significantly.
----- Original Message -----
From: Ray Boyce
To: blindhandyman@yahoogroups.com
Sent: Monday, March 01, 2010 2:03 PM
Subject: RE: [BlindHandyMan] Output valtage from a USB
Hi Max
USB voltage:
Supplied voltage by a host or a powered hub ports is between 4.75 V and 5.25
V. Maximum voltage drop for bus-powered hubs is 0.35 V from its host or hub
to the hubs output port. All hubs and functions must be able to send
configuration data at 4.4 V, but only low-power functions need to be working
at this voltage. Normal operational voltage for functions is minimum 4.75 V.
Found here
http://pinouts.ru/Slots/USB_pinout.shtml
From: blindhandyman@yahoogroups.com [mailto:blindhandy...@yahoogroups.com]
On Behalf Of Agent086b
Sent: Tuesday, 2 March 2010 8:30 AM
To: Handyman
Subject: [BlindHandyMan] Output valtage from a USB
Hi all,
does anybody know the output voltage from a USB port on a computer.
I wish to charge something but I don't know that voltage.
Thanks for any advice.
Max.
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