Welcome, Guest
Username: Password: Remember me
NOTE: This is a "Community" forum. Please be mindful that community members are here to help as part of a community effort. We therefore appreciate your effort in keeping this forum a happy place!

If you have a specific issue (e.g. hardware, failure) and want help from our support team, please use our tech support portal (Support menu - > Contact Us).
Thanks a lot of your help in making a better community.
  • Page:
  • 1

TOPIC:

Powering a Flex in a car?? 4 weeks 1 day ago #60502

  • banshee28
  • banshee28's Avatar Topic Author
  • Offline
  • New Member
  • New Member
  • Posts: 11
  • Thank you received: 1
So I previously used my DDRC-24 in my car using the MIniDCIsolator and it worked perfectly! However reading the specs on it, its 3W max. Looks like I need around 10W input for the Flex (Digital)?

Any suggestions? I was thinking of using something like this DROK and adjusting it to 12V and 1A which is close to 10W, but not sure thats optimal?

DROK: www.amazon.com/DROK-Adjustable-Converter...e/dp/B07JZ2GQJF?th=1
 

Please Log in or Create an account to join the conversation.

Powering a Flex in a car?? 3 weeks 3 days ago #60565

  • denver8me4dinner
  • denver8me4dinner's Avatar
  • Away
  • Platinum Member
  • Platinum Member
  • 3038564518
  • Posts: 363
  • Thank you received: 69
I put my flex in a car , I powered it off a single minidc and it worked, for a little while…

i just purchased 3X minidc and plan on parallel 
the outputs with a Schottky diode between them until I realized something….

16v , 500,000 µF cap or a small super cap should be ample and supply plenty of peak current…

here’s what I think would work fine 
a single minidc and this 

www.amazon.com/Shaluoman-Farad-Capacitor...a%2Caps%2C198&sr=8-8


just make sure to have proper fusing, once charged , this cap will supply hundreds of potential amps instantly…..  a small plastic box would be a good idea and silicone the board down inside it 



that buck converter might work….. I don’t know how it’s isolation works 
The following user(s) said Thank You: banshee28

Please Log in or Create an account to join the conversation.

Last edit: by denver8me4dinner.

Powering a Flex in a car?? 3 weeks 2 days ago #60571

  • banshee28
  • banshee28's Avatar Topic Author
  • Offline
  • New Member
  • New Member
  • Posts: 11
  • Thank you received: 1

I put my flex in a car , I powered it off a single minidc and it worked, for a little while…



that buck converter might work….. I don’t know how it’s isolation works 

So was thinking of that or a AC>DC converter for the car such as this: www.amazon.com/dp/B004MDXS0U?ref_=cm_sw_...241R7MHSTWAT7JGN17KP. Seems like it would work?
 

Please Log in or Create an account to join the conversation.

Powering a Flex in a car?? 3 weeks 2 days ago #60573

  • denver8me4dinner
  • denver8me4dinner's Avatar
  • Away
  • Platinum Member
  • Platinum Member
  • 3038564518
  • Posts: 363
  • Thank you received: 69
No don’t go 12v to 120vac 

it will have horrendous noise.. that’s probably the worst idea…..


you can put regular car power into it it will just have noise…. I once used two sets of GLI at the output and got rid of noise on a ddrc24…

it just needs isolation, you can ram regular car battery power into it all day…

i would simply buy 3X minidc and parallel the outputs,…. I did and it worked 

I put a three amp Schottky diode on all the negatives on each output  but I really don’t think I needed to do that…. I was just thinking if one goes out it won’t take the others with it 

im 100% confidant 3 minidc in parallel will work perfectly 

andrew aka oabe 

Please Log in or Create an account to join the conversation.

Last edit: by denver8me4dinner.

Powering a Flex in a car?? 2 weeks 3 days ago #60659

  • banshee28
  • banshee28's Avatar Topic Author
  • Offline
  • New Member
  • New Member
  • Posts: 11
  • Thank you received: 1

No don’t go 12v to 120vac 

it will have horrendous noise.. that’s probably the worst idea…..


you can put regular car power into it it will just have noise…. I once used two sets of GLI at the output and got rid of noise on a ddrc24…

it just needs isolation, you can ram regular car battery power into it all day…

i would simply buy 3X minidc and parallel the outputs,…. I did and it worked 

I put a three amp Schottky diode on all the negatives on each output  but I really don’t think I needed to do that…. I was just thinking if one goes out it won’t take the others with it 

im 100% confidant 3 minidc in parallel will work perfectly 

andrew aka oabe 
Thanks Oabe!

I will consider that!

However, what would be really nice is if Mini would build and sell one of these units that would support larger units such as the Flex in a car! They already have several car products so it seems like a great transition to do so now. Not sure I want to pay for 3 of these, but will see. It sounds like yours is working great.
 

Please Log in or Create an account to join the conversation.

Powering a Flex in a car?? 1 week 2 days ago #60716

  • denver8me4dinner
  • denver8me4dinner's Avatar
  • Away
  • Platinum Member
  • Platinum Member
  • 3038564518
  • Posts: 363
  • Thank you received: 69
There only 15$ lol 

i ran one off a single, it worked fine 
then it stopped…. But only to discover it didn’t blow…. The minidc still works 

I have 3 running it now….. no problems at all 
and super quiet operation….. man the ddrc stuff is ultra quiet with a minidc ……

i wonder if all these home audio folks that complain of humm might benefit from using cleaner dc 

idk 


but I would not let such a cheap silly part discourage you….. 

 

Please Log in or Create an account to join the conversation.

Powering a Flex in a car?? 1 week 2 days ago #60717

  • denver8me4dinner
  • denver8me4dinner's Avatar
  • Away
  • Platinum Member
  • Platinum Member
  • 3038564518
  • Posts: 363
  • Thank you received: 69
And if your worried about the extra 15$ 

go get a 1/2farad 16v polarized cap and cap the outputs 


you can pick one up for about 8$ 

I would go for another minidc tho 

Please Log in or Create an account to join the conversation.

Powering a Flex in a car?? 1 week 1 day ago #60736

  • banshee28
  • banshee28's Avatar Topic Author
  • Offline
  • New Member
  • New Member
  • Posts: 11
  • Thank you received: 1

There only 15$ lol 

i ran one off a single, it worked fine 
then it stopped…. But only to discover it didn’t blow…. The minidc still works 

I have 3 running it now….. no problems at all 
and super quiet operation….. man the ddrc stuff is ultra quiet with a minidc ……

i wonder if all these home audio folks that complain of humm might benefit from using cleaner dc 

idk 


but I would not let such a cheap silly part discourage you….. 

Yea, I only have one so would need 2 more, so $30 plus $30 in shipping. NO worries, can also get on Amazon for the same price so will prob choose one option. Its not that big of a deal, just trying to figure things out. Thanks!
 

Please Log in or Create an account to join the conversation.

Powering a Flex in a car?? 1 week 15 hours ago #60750

  • denver8me4dinner
  • denver8me4dinner's Avatar
  • Away
  • Platinum Member
  • Platinum Member
  • 3038564518
  • Posts: 363
  • Thank you received: 69
What Amazon are u talking about 

a buck converter isn’t an isolator

Maybe I’m wrong , a buck converter uses field effect transistors to regulate voltage…. It’s a switching power supply 

I think that’s a different critter….. idk 
maybe I’m mistaken 

Please Log in or Create an account to join the conversation.

  • Page:
  • 1