12v to 60v, 0v and -60v circuits

[MJC147]

Hello, ive got a nice little amp that needs a ~500w dual rail supply ( has a -60v output, a 0v “virtual ground” output, and a +60v output)

Does anyone know of a relatively simple circuit to take my 12v and split it to a 60v, 0v, 60v output? preferably with soft startup and control feedback? have a milling machine, so can etch pcbs pretty well.
I have seen a few designs that use the tl494 that look good, however im not very confident with transformers so it really handy if you recommend a transformer with said schematic (or, i dont mind winding one)

 

[russc]

 

[MJC147]

😧

 

[Boydk]

to take my 12v and split it to a 60v, 0v, 60v

I guess, you mean 120Volt to 2 x 60. If so..... Your headline is mispelled too

 

[rayma]

I would encourage you to build a simple, conventional 500W supply.
Or is this for use in a vehicle?

 

[MJC147]

No, it is a step up circuit, the input is 12v, which would likely oscillate through a transformer with a primary and dual secondary, outputting 60v, 0v, and -60v. The title lacks info.
Yes, it will be used in a car to make use of a 12v battery, and supply a dual rail amp that needs 55v, 0v and -55v

 

[ingo50]

 

[JMFahey]

It is clearly a car amp power supply, what else?


as of specs:

nice little amp that needs a ~500w dual rail supply

those words do not go together in the same phrase

Neither:

relatively simple circuit to take my 12v and split it to a 60v, 0v, 60v output? preferably with soft startup and control feedback

besides the 500W requirement that is

 

[Havoc]

Not a simple power supply if you have no experience with those things. I wouldn't do it myself. Just 500@12V is 42A, peaks will be higher than that.

 

[basreflex]

buy a victron 12v to 220v inverter, then a regular supply +/- 60v

 

[Regenpak]

Get a new or second hand 500 W subwoofer booster amp and use its power inverter. Easy peasy.

 

[ingo50]

No. Chinese 500 Watt are in reality only about 50 Watt continuous .
500 is only at 0,1 ohm load for 0,01 second measured at top-peak signal
have fun

 

[Regenpak]

No. Chinese 500 Watt are in reality only about 50 Watt continuous.

Only if they are 500 W PMPO. If they are 500 W(RMS) they will deliver. Actual PMPO does not exist in the real world. It is a theoretical construct.

 

[newvirus2008]

The easiest 12V setup for someone without much experience would be a 12V 1kVA sinewave inverter powering a transformer with 60V secondaries...

 

[basreflex]

most UPS systems are not sinewave and are usually not engineered for 100% duty, That is why I recommended the victron inverter, these are made to last.

 

[MJC147]

Thanks for the help everyone, i gave up on 12v to dual rail thing, as everyone said it is a little complicated for me at the moment. Found a bargain toroid transformer that can handle 600w and has dual secondaries, so ended up just milling a rectifier and wiring up to the transformer, then printed a amp case. I have a great home subwoofer amp now though which is nice

 

[brunomiguel]

Hello, I have the same issue for powering up a small 4 channel amp that I develop, I am just letting you that also didn't receive any good recomendations and at the moment I am already decided to design and build an SMPS from 12 to split rails, although it will be for plus and minus
30 volts.
Link to my tread..
https://www.diyaudio.com/community/threads/4-channel-diy-amp.406429/#post-7683431