nyjumpee Posted October 10, 2006 Report Share Posted October 10, 2006 I have 2 cell phone chargers and 2 bluetooth headset chargers that I'd like to try and consolidate into 1 charger with 4 outputs.The good thing is all of the jacks are USB! Quote Link to comment Share on other sites More sharing options...
mvs sarma Posted October 10, 2006 Report Share Posted October 10, 2006 good nyjumpee,it calls for 2.6 amps if all the items are to be charged same timeyou will perhaps have problem once the sigle proposed charges goes faulty--- redundancy would be better you may try to develop a psu with 5.0 output and a current capacity of atleast 3 amps -- may be LM317 with a pass transistor for current boost. Set it for 5V and locally rig up a multiway usb sockets and wire them with only +5 and return wirs at the appropriate pins-- logically it should work-- how ever i agian suggest , think interms of redundancysarma Quote Link to comment Share on other sites More sharing options...
ZomBiE Posted October 12, 2006 Report Share Posted October 12, 2006 Li-ion chargers might not like parallel power, them dent to "sniff" input voltage to vary PWM cycles for proper regulation. And when theres a few PWM regulators, it may cause too much noise that will mixup error amplifiers of such chargers to undetermined state. ie. charger doesn't work like it should be. Quote Link to comment Share on other sites More sharing options...
mvs sarma Posted October 14, 2006 Report Share Posted October 14, 2006 these li-on chargers will have their own control circurty with input voltage being common, say at 5.1v dc,however if it isdesirable to have isolation you may have adiode in +ve lead of each output with a electrolytic filter cap of suitable value. sarma Quote Link to comment Share on other sites More sharing options...
nyjumpee Posted October 16, 2006 Author Report Share Posted October 16, 2006 Thanks for the feedback! Quote Link to comment Share on other sites More sharing options...
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