/members-area/personalblogs/b/blog/posts/dynamo-hub-5v-usb-chargerI have some pics from last winter i thought i&#39;d share from my dynamo hub 5v charger project. I finally got it to work but unfortunately it doesn&#39;t work well. i think i would have to ride across Canada to fully charge my phone. The output of t...en-USTelligent Community 12https://community.element14.com/members-area/personalblogs/b/blog/posts/dynamo-hub-5v-usb-chargerTue, 09 Jan 2018 04:16:23 GMT93d5dcb4-84c2-446f-b2cb-99731719e767:0f3e00be-a20c-4451-b31d-b1ca144027c2jw07521<p>Hi Craig,</p><p>&nbsp;</p><p>How are you determining that the hub generates 1 amp and what is the voltage that is being produced at this current? Are you sure that the hub is producing AC current? 6 volts at 3 watts is only 0.5 Amps. The 7805 that you are using has a need for at least 7 volts to operate properly. You are loosing about 1.5 of the 6 volts in the bridge rectifiers of your circuit.</p><p>&nbsp;</p><p>John</p><img src="https://community.element14.com/aggbug?PostID=4093&AppID=293&AppType=Weblog&ContentType=0" width="1" height="1">