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Switching Power Supply for Tubed Amp

E

Ernst

Jan 1, 1970
0
Hi Y'all, I'm putting together a home-brew tubed amp, and need a power
supply to suit. I intend to be heretical and power the amp with a
switching supply. Amidon can help with the tech info and parts for the
transformer. Can anyone point me in the direction of some help with
the oscillator and power components?

Thanks in advance,

Ernst
 
E

Eeyore

Jan 1, 1970
0
Ernst said:
Hi Y'all, I'm putting together a home-brew tubed amp, and need a power
supply to suit. I intend to be heretical and power the amp with a
switching supply. Amidon can help with the tech info and parts for the
transformer. Can anyone point me in the direction of some help with
the oscillator and power components?

So. What style of smps did you have in mind ?

Graham
 
E

Ernst

Jan 1, 1970
0
The style that converts 120VAC to 430/-75/6.3VDC on the order of 400VA;
with a switching frequency of 100khz or better.

I'm not particular about topology; except "simple is better".

Thanks.
 
L

lijikang

Jan 1, 1970
0
Hi, Have a look at:

Control IC:
LM5021, (National semi)
NCP1201, (ON semi)
MAX5094, (Maxim)

Switch components:
IRFP460, (500V,20A)

To be honest, if you don't previous experience, it is not very easy to
design a power supply with 400VA. You'd better find a experienced
person to give you design direction.


lijikang
.......
 
E

Ernst

Jan 1, 1970
0
Maxim is a good idea, thanks. I also ran across a circuit for an
SG3524 that may adapt. The original app is a +/- 50V DC supply.
 
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