View Single Post
  #3  
Old 29-07-2009, 08:36 AM
stephenb's Avatar
stephenb (Stephen)
Registered User

stephenb is offline
 
Join Date: Sep 2008
Location: all over the shop...
Posts: 2,098
Quote:
Originally Posted by erick View Post
I doubt 0.8V over will upset the 5V fan. As you say, it doesn't stay there for long. Don't worry about under volts - fan just runds a little slower. I power a 12V fan from a little power brick that will deliver only 8 or so volts - all fine.
Thanks Eric for that. I've been doing a bit of searching on the internet about it. My gut feeling is that the 0.08 shouldn't be an issue, so thanks for confirming that.

I will run 4 x fully charged NiMH batteries today and see what duration the fan runs for.

I wonder if there is a simple data logger for computers to create logging graphs for test like this?
Reply With Quote