USB Charging Port in Household Items.

I feel that it would be very cool and convenient to have USB charging ports in things such as lamps, or fans. Items that you have next to you on your couch when you're using your phone or tablet.

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clem57 over 10 years ago

How about this iPhone-charging desk lamps declare war on cable clutter
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gothic_day over 10 years ago in reply to clem57

I already knew about those ones that are manufactured that way. I was more thinking about manually adding in a charging circuit into an existing item you already own.
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clem57 over 10 years ago in reply to gothic_day

To build your own,look at converting 110/220 volt AC down to 5 volt DC and provide around 1 ampere current to the proper USB outlet. The other thing to watch is providing clean regulated power.
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kidiccurus over 10 years ago in reply to clem57

I would aim for two amps rather than one. This can charge a lot faster, but can cause the battery to deteriate faster. 1 amp is equivalent to an IPhone charger and 2 amps is equivalent to an IPad charger. Be aware that you may need some resistors connected to the signal pins to enable faster charging. Ben talks a little more about this in his earth day wall wart episode.
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kidiccurus over 10 years ago in reply to clem57

I would aim for two amps rather than one. This can charge a lot faster, but can cause the battery to deteriate faster. 1 amp is equivalent to an IPhone charger and 2 amps is equivalent to an IPad charger. Be aware that you may need some resistors connected to the signal pins to enable faster charging. Ben talks a little more about this in his earth day wall wart episode.
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