View Single Post
  #26   Spotlight this post!  
Unread 18-10-2012, 12:11
Daniel_LaFleur's Avatar
Daniel_LaFleur Daniel_LaFleur is offline
Mad Scientist
AKA: Me
FRC #2040 (DERT)
Team Role: Engineer
 
Join Date: Apr 2005
Rookie Year: 2003
Location: Peoria, IL
Posts: 1,980
Daniel_LaFleur has a reputation beyond reputeDaniel_LaFleur has a reputation beyond reputeDaniel_LaFleur has a reputation beyond reputeDaniel_LaFleur has a reputation beyond reputeDaniel_LaFleur has a reputation beyond reputeDaniel_LaFleur has a reputation beyond reputeDaniel_LaFleur has a reputation beyond reputeDaniel_LaFleur has a reputation beyond reputeDaniel_LaFleur has a reputation beyond reputeDaniel_LaFleur has a reputation beyond reputeDaniel_LaFleur has a reputation beyond repute
Send a message via MSN to Daniel_LaFleur
Re: 110V AC to 12V DC suggestion

Quote:
Originally Posted by Mk.32 View Post
If a CIM is pulling 132amps wouldn't PD 40amp breakers throw? And there is a 120amp breaker, so the robot should never pull more then 120 amps, and if it tires to wouldn't the breaker just kill power?

Those power supplies look like the deal of the decade for high power applications, I might get one to run my battery charging array...
The 40 amp snap action breakers are a thermal device. When the current is high the device heats up, when it gets to s specific temperature it breaks contact. Since it's an automatic resetting breaker, when the temperature cools down it will reengage the contact. The 40 Amp specification is a requirement that it will NOT break contact below that current. Above 40 Amps it WILL break contact, but only after a specified time (at 132 Amps it's just under 1 second).

Do not use the above power supplies to charge batteries. They do not have a current control and do not have an automatic shutoff.
__________________
___________________
"We are not now that strength which in old days moved earth and heaven; that which we are, we are;
One equal temper of heroic hearts, Made weak by time and fate, but strong in will
To strive, to seek, to find, and not to yield. "
- Tennyson, Ulysses