From 12v to +- 60v where to buy?

[Ryssen]

where to buy,maybe a kit..or finnished.

 

[JonSnell Electronic]

What sort of power?

 

[Ryssen]

I was thinking of using one of this amp:Connexelectronic

If it can take 2 ohms load (2 x4 ohms subs in mono)

 

[theAnonymous1]

If you're going to order from connexelectronic, why not get the C500SMPS?

Connexelectronic

The only other one I'm aware of is the ColdAmp CPS80, but it's out of stock.

ColdAmp - CPS80: >800W 12V input DC/DC audio switching power supply

 

[Lo_Tse]

Just curious, what kind of 12V dc sources you plan to use? Car batteries?

 

[Ryssen]

Yes car battery.In my car that is.

 

[Lo_Tse]

Saw some of these at Ebay, not sure how good (or bad) they are.

1200W 20A DC Converter Boost Step Up Power Supply Module in 10 60V Out 12 80V | eBay

I heard that people use these boost converters to run electric bicycles off batteries in China.

 

[Ryssen]

Yes but I need possitive and negative voltage,or can 2 of these be connected to get that?

 

[Lo_Tse]

Actually, how can you tell the voltage output is not +- (dual rail)? I went to one of the vendor's website and it was mentioned that two can be used to provide more power.

I was think of taking similar approach to generate a 70 V power supply. I plan to use a linear power supply of 44 V (employing a 800 VA toroid).

 

[theAnonymous1]

Those type of boost converters are not isolated. You can't create a bi-polar supply with them.

 

[Lo_Tse]

Can one use two of them in series and ground the link, like connecting two secondaries of a transformer (center tapping) to create a bipolar output?

 

[infinia]

probably can rob one from a broken 1000W car amp. rip the PCB in half. LOL
The ESP site has a DIY schematic for a design. looks like it could work with a few mods.

 

[theAnonymous1]

Can one use two of them in series and ground the link, like connecting two secondaries of a transformer (center tapping) to create a bipolar output?

The secondaries of a mains transformer are isolated from the input. If you tried that with an unisolated DC-DC converter you would short the output of the second converter.

The only way it could possibly work is if you powered them from independent and isolated batteries.

 

[Lo_Tse]

I have dual secondaries on my trafo, I am thinking of using both to build 2 separate PSU's and connect to 2 separate converters. Then just connect the 2 converters the way I described. I guess I have to set up a ground point (connect to the ground leg of the AC inlet).