DC/DC Converter - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance > Electrical Systems
 Not a Member? 
  #1  
Old 04-22-2009
Junior Member
 
Join Date: Apr 2009
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
freya39 is on a distinguished road
DC/DC Converter

My nav station has way to many devices that use AC. I have decided to CUT the plugs and run them off DC, which is what they like.

1. Fanless Reliant Marine Computer for Nobeltec.
2. Display unit.
3. Cell Phone
4. VHF
5. Uniden two-way radios.

I have ordered a ICA-2000A-12 DC/DC Converter that has an input voltage from 9 - 18 VDC and output of 12.5 VDC. I will wire this into one of my empty DC breakers. I will also install a Rigrunner4005 that has 5 plug-ins for anything requiring 12 VDC.

Question: Has anyone every installed a DC/DC converter. Would enjoy some comments or advice on this installation before it arrives.

Hugh
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 04-22-2009
Zanshin's Avatar
Senior Member
 
Join Date: Aug 2006
Location: Germany
Posts: 2,208
Thanks: 0
Thanked 15 Times in 15 Posts
Rep Power: 9
Zanshin is on a distinguished road
Although I haven't installed one, I have looked into them and was pretty surprised at their relative inefficiency, with 90% being at the high end. I also haven't found any that are in the higher wattage end that are isolated. I googled the "ICA-2000A-12" with no luck. How many watts load does it support? I have looked into smaller one to drive LED lights but gave up on the idea of doing it myself. Also, do all of those devices need regulated 12VDC power supplies or are they more tolerant (I would assume the computer and VHF can run straight off the batteries and would accept a wider range, i.e. from 10V through 16V)?
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 04-22-2009
Junior Member
 
Join Date: Apr 2009
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
freya39 is on a distinguished road
I typed it wrong. It is the IDC-200A-12 and its isolated. This is a 200W and they have 100W also.
They might accept a wider range of voltages but thought I would go this way to provide a regulated source plus the rigrunner 4005 has a fuse of each device to regulate over current.
Inefficiency....where did you find this. Would like to read reviews on this.
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 04-22-2009
Zanshin's Avatar
Senior Member
 
Join Date: Aug 2006
Location: Germany
Posts: 2,208
Thanks: 0
Thanked 15 Times in 15 Posts
Rep Power: 9
Zanshin is on a distinguished road
There are various sources for that information, but I used DC-DC Converters | V-Infinity, a Division of CUI Inc. to get an overview of the different systems and I think the best 12VDC I found was 91% which sounds about right. But if each of these "regulators" takes 10% loss and your devices already have builtin regulators you will be paying a significant surcharge - this is one of the reasons I dropped the idea, since one of my goals was to save energy.

BTW - on Samlex's website they state that this regulator is 85% efficient, see http://www.samlexamerica.com/custome...al_Jul2008.pdf
__________________

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 04-22-2009
Junior Member
 
Join Date: Apr 2009
Posts: 5
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
freya39 is on a distinguished road
Thanks for the link for the review. Didn't know they were that inefficient.
I guess I could opt to just cut the cords and run them straight to the DC power panel circuit breaker.
I just got tired of turning on the Heart Interface Inverter at anchor and using up all those amps to use the computer.
Thanks I was looking for this type of discussion.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 04-23-2009
Senior Member
 
Join Date: Jun 2006
Posts: 5,004
Thanks: 5
Thanked 18 Times in 18 Posts
Rep Power: 11
wind_magic has a spectacular aura about wind_magic has a spectacular aura about wind_magic has a spectacular aura about
I wire all my 12v stuff straight to the panel, it did not even occur to me to consider a DC to DC converter. Charging goes up to about 14.2, but all of the electronics I have is probably made to survive that, I would be amazed if that was out of tolerance.
__________________
What are you pretending not to know ?

Please support my
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On


Similar Threads
Thread Thread Starter Forum Replies Last Post
How to power laptop johnpen2000 Gear & Maintenance 9 09-02-2008 03:42 PM


All times are GMT -4. The time now is 09:26 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.