Class D Amp with LM566, LM393 and 2XIRF530

[luizcpimenta]

Nice work... I made some changes on circuit...

Good afternoon.
Could provide the scheme?
Thank you.

 

[toreto009]

what is this component? R120

 

[mrmax063]

what is this component? R120

MUR120 diode.

 

[toreto009]

MUR120 diode.

big thanks

 

[kool lites]

What is the difference between v1.1 & v1.2 of SPS 1000? is there an up-to-date schematic available? I ask caused I have just about recovered my work area and want see what components I need to source

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[kool lites]

SPS-1000 V1.2

I think I have traced Kuntarman's layout correctly.

 

[thimios]

APEX SPS1K v1.2

Hi,can you post this in black&white for home etching?

 

[kool lites]

Hi,can you post this in black&white for home etching?

As far as I can see there is no artwork change between v1.1 and v1.2. Only the values have changed.

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[Kuntarman]

What is the difference between v1.1 & v1.2 of SPS 1000? is there an up-to-date schematic available? I ask caused I have just about recovered my work area and want see what components I need to source

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there is between v1.1 & v 1.2
on RED marked Part changed, & on GREEN marked track changed by Apex.

 

[Kuntarman]

Hi,can you post this in black&white for home etching?

here it is,

regards

 

[Kuntarman]

APEX sps1k sch

Trafo winding by Apex:

- Use 0.6mm wire
- Wind 20 turn with 4 x 0.6mm wires in parallel on ETD49 for primary
- Wind 3 turn with 0.6mm for 24v secundary and 2 turns 2 x 0.6mm in series for 2 x 15v
- Wind 2 x 8 turn with 5 x0.6mm wires in parallel For main secundar.

 

[Kuntarman]

I think I have traced Kuntarman's layout correctly.

Apex sps1k Sch

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[apexaudio]

View attachment 563021 there is between v1.1 & v 1.2
on RED marked Part changed, & on GREEN marked track changed by Apex.

Track for 15v gnd must be reroute.

 

[kool lites]

View attachment 563028

Apex sps1k Sch

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That is what I used to begin with bu there a several differences to the PCBs.

 

[toreto009]

than you can replace this diode -MUR 120? (R120 it on the board)

 

[apexaudio]

PWM Fan Speed Control.

 

[toreto009]

Hello everybody. I need help. I gathered D200.1, it works, but in the dynamics of a squeak is heard, I think it's because of the frequency. How to change it?

 

[toreto009]

my amplifier. Now it works, I repaired

 

[apexaudio]

my amplifier. Now it works, I repaired

Nice work, what is core material with this big gap? BD241 must have heatsink.
Regards

 

[toreto009]

Nice work, what is core material with this big gap? BD241 must have heatsink.
Regards

I install the heat sink, I do not have it, I need to buy. Material 2000NM core, you can put a ring on EPCOS. The size 45*28*12