shopping cart empty
WORLDWIDE FREE SHIPPING

Is there a way to adjust the voltage?
Login to post a new topic and to write a reply.
Thread Tools Rate This Thread


Search within thread:

Login to rate this thread.
#1 (permalink)      11/25/2013 10:31:15 AM US Central   quote/reply + tips
jbrols
Member
  • JoinedMay 2013
  • Posts 110
  • Reviews 6
  • Kudos22
Is there a way to adjust the voltage?
Hi!
I just received these chargers, but one of them has a too low open voltage (~4.14V) and the other has much too high open voltage (4.38V).
Can some electronics guru help me to adjust these voltages perhaps by changing some of the resistor values in them?
I opened them up, but could not figure out a way to do it myself (no modifications made yet). I don't want to send them back because of the shipping costs, and I'm not really sure, if FT would like to resend another ones.

Your helping would be much appreciated.
What's the big deal about having a forum signature? I'm doing just fine without any...
#2 (permalink)      11/25/2013 4:07:41 PM US Central   quote/reply + tips
Chloe
Member
  • JoinedMar 2013
  • Posts 1004
  • Reviews 3
  • Kudos1956
Can you post a clear picture of the PCB?
#3 (permalink)      11/25/2013 11:15:52 PM US Central   quote/reply + tips
jbrols
Member
  • JoinedMay 2013
  • Posts 110
  • Reviews 6
  • Kudos22
I know, it's not clear enough for this purpose, but couldn't get any better at the moment. Will try to retake photos again.
What's the big deal about having a forum signature? I'm doing just fine without any...
#4 (permalink)      11/25/2013 11:48:46 PM US Central   quote/reply + tips
jbrols
Member
  • JoinedMay 2013
  • Posts 110
  • Reviews 6
  • Kudos22
Hopefully these will be better:

What's the big deal about having a forum signature? I'm doing just fine without any...