Class D Amp with LM566, LM393 and 2XIRF530

[apexaudio]

Hi Apex.
All value Part as Thienchay's PCB layout

Use 0R1 instead 0R22.

 

[vinh nguyen]

Use 0R1 instead 0R22.

I user parallel 2 resistor 0.1R 3W = 0.05 Omh. So how much is enough value R = ?. Thanks Apex.

 

[apexaudio]

I user parallel 2 resistor 0.1R 3W = 0.05 Omh. So how much is enough value R = ?. Thanks Apex.

0.05 Ohm limit is about 10-12A... use 0.025 Ohm.

 

[vinh nguyen]

0.05 Ohm limit is about 10-12A... use 0.025 Ohm.

Thanks Apex supported

 

[Dacz]

hi apex.. can i use this mosfet IXFK73N30 or 35N10

 

[c08bm]

SMPS PSU for D200 stereo.

Could you post schematic?

 

[de Ocampo]

Sir Mile,
I do think this one is much better, I was so eager to try this lay-out but I am currently living in a place where Laserjet printer is so elusive and if you can find one, shop attendant refuses to use glossy paper. and I don't own one

I will share the lay-out, others may find it useful. PCB size is 55X145mm almost the same width as the original D200.2 pcb. If this design is a success I will integrate the XLR pre-amp.

 

[DC sound]

Hi Apex,

can I put a load resistor 1.5k in d200? just like other D-amps has a load resistor..

 

[apexaudio]

Sir Mile,
I do think this one is much better, I was so eager to try this lay-out but I am currently living in a place where Laserjet printer is so elusive and if you can find one, shop attendant refuses to use glossy paper. and I don't own one

I will share the lay-out, others may find it useful. PCB size is 55X145mm almost the same width as the original D200.2 pcb. If this design is a success I will integrate the XLR pre-amp.

Nice work, thank you.
Regards

 

[apexaudio]

Hi Apex,

can I put a load resistor 1.5k in d200? just like other D-amps has a load resistor..

Yes, load resistor must be use if you use DC protect with relay.

 

[de Ocampo]

Nice work, thank you.
Regards

You are welcome Sir!

 

[apexaudio]

You are welcome Sir!

Ground track corection.
Preamp can be on separate pcb with volume pot.

 

[gerry_morales]

sis abetir.......... can you share the cad files of your version..........i'll try to modify , gonna put some smd parts...... i have lots of smd decoupling caps,,,,,also ir2110s

 

[de Ocampo]

Is this correct Sir Mile?


@gerry morales,

PM me your email,

 

[DC sound]

Yes, load resistor must be use if you use DC protect with relay.

yes.. Apex, I'll be using speaker protect... D200 with protect still in progress..

 

[de Ocampo]

Artwork for corrected feedback ground reference,

 

[DC sound]

my new d200.. I'm using the original PCB D200,

 

[de Ocampo]

^Very nice build DC, i'm pretty excited to build my SMPS too, they look great!

 

[dimakos]

hi abetir.
pcb ant schematic for the smps please..

 

[de Ocampo]

Hi dimakos,
I was referring to DC Sounds SMPS, not APEX design, but you can ask DC I guess his SMPS was tested and is fully working.

I do think that Sir Mile is yet to share the SMPS schematic for D200