Wall Charger (Universal Replacement) made by Duracell model # DU 5206 intended for charging Blackberry, HTC Eris Droid type cell phones is so dirty it is a sin. This one radiates from both in's and o
Chas, If ther unit is that "dirty", I have to wonder if this is one of those instances in which parts (used for EMI control) are being omitted from the production version of the item. The only way to
Thanks for the tips. A differential filter would be appropriate on this on on the input and perhaps by modification on the output side as well as CMC filtering, but it is leaving my premises on Thurs
One of the most problematic elements of chargers like this is that the connector that connects to the cell phone is non-standard and the charging voltage and current are unknown. This makes it a bit
Mobile manufacturers have decided to standardize on Micro-B USB connectors. Since they are also usually the USB connector for the phone and thus are USB-standard, that pretty much limits it to 5 V dc
I had a neighbor that had a no name brand cell phone charger that his son's girlfriend would bring with her when she would visit the home. terrible noise on 40 meters. traced it with my portable sony
At long last, the IEEE Standards Association, of which I am a member, is in the process of convening a standards working group to attempt standardization of power supply connectors for electronic dev
If all wall warts have the same plug but deliver different voltages, what havoc will occur among consumers who grab the wrong wall wart and burn up (or undercharge) one of their devices? Could all de
I thought the proposal was for all wall-warts of the same voltage (and polarity) sharing a common connector. Different voltages and polarities should have different connectors. Autoranging supplies a
Guys, I think the net result will be that differing polarities may go away, but the point about voltage is well-taken. However, that's what the working group has to do. They'll have to consider the v
But I bet none of those 12 or 28s are new. With the cellphone industry trying to standardize on USB Micro B, I would assume that manufacturers of other devices would want to leverage that if technica