Need +/-35V in a car..

packetrace · 15th February 2011, 08:40 PM

Hi, I am building an amplifier...for my car so I would need a schema to get +/-35V DC ....of course..my car battery is 12vDC.....

SO...i want a powersupply to get +/-35Vout and 12V IN

Thanks

gruni · 15th February 2011, 08:43 PM

Switchmode Power Supply For Car Audio
this will do the job. but keep in mind that building switchmode power supplys isnt an easy task and many things can go wrong!

llwhtt · 15th February 2011, 09:30 PM

You can do it lowrider style and fill the trunk up with 6 batteries, 3 for + and 3 for the -. I'll bet you didn't think of that did ya? Just a thought.

Craig

mravlca · 15th February 2011, 09:34 PM

It's easier to buy one and it's dirt cheap.

Car SMPS

Regards,

Aleš

ssanmor · 13th March 2011, 10:04 AM

Hi, I am Sergio Sanchez, the writer of that article about a car SMPS in ESP. Hope you all found it useful!
As you know, now I work in a company called Coldamp. One of the produts I have designed is a 12V input DC/DC SMPS for audio (adjustable to the voltage you need, up to +/-70V), and up to 1KW power. Just in case you don't feel brave enough to do it yourself:

https://www.coldamp.com/store/cps80.html

Feel free to contact us (info@coldamp.com) for any questions or help building your own PSU!

15th February 2011, 08:40 PM	#1
packetrace diyAudio Member Join Date: Jan 2011	Need +/-35V in a car.. Hi, I am building an amplifier...for my car so I would need a schema to get +/-35V DC ....of course..my car battery is 12vDC..... SO...i want a powersupply to get +/-35Vout and 12V IN Thanks

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15th February 2011, 08:43 PM	#2
gruni diyAudio Member Join Date: Feb 2008	Switchmode Power Supply For Car Audio this will do the job. but keep in mind that building switchmode power supplys isnt an easy task and many things can go wrong!

15th February 2011, 09:30 PM	#3
llwhtt diyAudio Member Join Date: Jun 2008	You can do it lowrider style and fill the trunk up with 6 batteries, 3 for + and 3 for the -. I'll bet you didn't think of that did ya? Just a thought. Craig

15th February 2011, 09:34 PM	#4
mravlca diyAudio Member Join Date: Jul 2009 Location: Ljubljana	It's easier to buy one and it's dirt cheap. Car SMPS Regards, Aleš

13th March 2011, 10:04 AM	#5
ssanmor diyAudio Member Join Date: Jan 2002 Location: Madrid	Hi, I am Sergio Sanchez, the writer of that article about a car SMPS in ESP. Hope you all found it useful! As you know, now I work in a company called Coldamp. One of the produts I have designed is a 12V input DC/DC SMPS for audio (adjustable to the voltage you need, up to +/-70V), and up to 1KW power. Just in case you don't feel brave enough to do it yourself: https://www.coldamp.com/store/cps80.html Feel free to contact us (info@coldamp.com) for any questions or help building your own PSU!

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