the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
icon

Keeping computer powered up during start cycle


Post ReplyPost New Topic
< Prev Topic Next Topic >
kjvannatta1 
Member - Posts: 1
Member spacespace
Joined: January 22, 2017
Location: Texas, United States
Posted: August 31, 2017 at 1:32 PM / IP Logged Link to Post Post Reply Quote kjvannatta1
Hello,
I am currently having a problem with computers in fire apparatus and ambulances. The computer the city has decided to go with is the Intel NUC, which requires 19V input. I started out with a simply 12 to 19 volt converter and the voltage was dropping enough during the start cycle to cause the computer to shut off. I called Lind Electronics, who makes power supplies for computers and explained the problem. From them I got a 12 to 19 volt power supply that was supposed to remain stable down to 10 volts for 10 seconds. I'm still having problems even with these power supplies. Also, sometimes the monitor and the mobile router (Cradle Point) will blink out during a start cycle, which causes additional problems.
I am looking for a simple robust solution to keep a solid 12volts to these components during the high demand start of a fire apparatus.
I have one with unit a backup battery fed off a relay that disconnects the whole shebang while the starter is engaged, but it is having similar problems also. Doesn't seem logical but it's happening.
I need Simple, I really don't want a bunch of other stuff to cram behind panels or in consoles.
I need Bulletproof enough to survive in a fire engine.
Ideas and suggestions?
Thanks
i am an idiot 
Platinum - Posts: 13,254
Platinum spaceThis member consistently provides reliable informationspace
Joined: September 21, 2006
Location: Louisiana, United States
Posted: September 01, 2017 at 8:16 PM / IP Logged Link to Post Post Reply Quote i am an idiot
Get a couple of these and mount them into a metal bar to use as a heat sink. Put this array in series with the charge wire that charges the battery for the system. No need for a relay to disconnect during start cycle. If this works you may want to use 4 per vehicle. If a battery goes completely dead it may take more than 50 amps depending on charger being used.
https://www.amazon.com/NTE-Electronics-NTE5829-Silicon-Rectifier/dp/B008UTVRO6/ref=sr_1_3?ie=UTF8&qid=1504314453&sr=8-3&keywords=50+amp+diode

If you wish to post a reply to this topic, you must first login.
If you are not already registered, you must first register.

  Printable version Printable version Post ReplyPost New Topic
You cannot post new topics in this forum
You cannot reply to topics in this forum
You cannot delete your posts in this forum
You cannot edit your posts in this forum
You cannot create polls in this forum
You cannot vote in polls in this forum

  •  
Search the12volt.com
Follow the12volt.com Follow the12volt.com on Facebook
Monday, January 25, 2021 • Copyright © 1999-2021 the12volt.com, All Rights Reserved Privacy Policy & Use of Cookies
Disclaimer: *All information on this site ( the12volt.com ) is provided "as is" without any warranty of any kind, either expressed or implied, including but not limited to fitness for a particular use. Any user assumes the entire risk as to the accuracy and use of this information. Please verify all wire colors and diagrams before applying any information.

Secured by Sectigo
the12volt.com spacer
the12volt.com spacer
the12volt.com spacer
Support the12volt.com
Top
the12volt.com spacer
the12volt.com spacer