"DIY 1.5KW Bipolar Class-H"

[kimberlator]

You're such a great person and a really asset to diyaudio community, thank you and good luck in all your projects, they're astounding, regards from El Centro CA.

 

[kimberlator]

That's what i call a BIG MONSTER, i suppose it has plenty of watts packed in it isn't it?

 

[kASD]

So did anyone tried this yet?

 

[sandeep kayarkar]

1.5 KW amp

sir, i want to try this if u help me, but with single sided PCB.

So did anyone tried this yet?

 

[kASD]

sir, i want to try this if u help me, but with single sided PCB.

I don't have single side PCB version for this.

 

[rdp]

hi workhorse
i need complete parts lists for this project.thanks

 

[melexa sweet]

nice amp! easy to analyze schematics,,,,thanks much WORKHORSE for sharing your treasures to us DIY's..

 

[rizqi]

change value step driver

You need 2500VA transformer with following winding specs: 85-50-15-0-15-50-85 14A secondary.

This amplifier is has all set of protection like DC Fault, Muting, Shrotcircuit etc.

nice amps... btw,... here already suplay with 56ac and 112ac,.. so any change step driver to use your amps?

warm regards...

 

[Shelah]

hello all.

am planing to make this amp. i have a 82-41-0-41-82 with 15v and 19v toroid trafo weighing about 9.5 kg. i want to diy the amp from start to finish. i just need a few issues sorted out.
1 what is the bias voltage?
2 the schematic shows that 1uf4007 in not applicable buh the pcb layouts show it is applicable. may i know the one to follow.
3 can i use mbr20200ct diode in place of stps20sm100s?
4 what equivalent diode can i use in place of bas21 because in my country its not there.
5 of all the zener diodes on the schematic only 1n4744 is there in my country. i believe these are one watt editions. xan i use 500mw editions coz these are here?

sorry for many questions i just want to be sure when making that am fed with expert advice.

 

[rohin]

i think this is number one powerful h class amplifier on internet but no one even try to make it because it is double side pcb and files are a opening in some software.no jpeg or pdf available.work horse sir do something.thanks.

 

[waso]

rohin, hi!
I have another opinion
Look this links:
http://www.diyaudio.com/forums/solid-state/254656-900w-class-h-power-amplifier.html
and 3-level version : http://www.diyaudio.com/forums/solid-state/254656-900w-class-h-power-amplifier-7.html#post4219631
I think, my works can be a real alternative to the already known forum circuits.The rest is only a matter of time.

 

[shehantha]

I am planning to build this amp. Can anyone tell me is this circuit has current limmiter circuit with in the schematic. I cannot see it

 

[shehantha]

if any one dosen't have the option to open the gerber files here are the pdf files with holes and values on the top overlay board

 

[shehantha]

1.5 kw workhorse's class H amp

pcb are now ready........

 

[shehantha]

1.5 kw workhorse's class H amp

amp is now 95% completed.

 

[kASD]

Nice work !

 

[shehantha]

Thanks sir

 

[shehantha]

1.5kw workhorse's amp

amp is completed

 

[TonyTecson]

dear all, what traffos are you using with this amp?

 

[wg_ski]

Looks like something (big) that's been pulled apart and had the secondaries rewound. I doubt you'll find another exactly like it.