900W H-class PA Amp with Limiter

[Sneha B]

I think H900 ..........
Let it be.... Even sir mile is not answering
So close this thread....

 

[saminnografix]

Sneha B. This thread was created decade ago do not expect somebody to reply you immediately. They have business to take care of. Secondly your query already answered years ago so feel free to BACKREAD all the pists you have all the answers. GOODLUCK

 

[wattaniya]

hi mile , pls can u check 3 step correct or not?

 

[HighTec]

@wattaniya,

Some tips:

use yellow color for the top overlay. It's more eyes friendly.

Edit: btw, your top overlay is overlapping the multi-layer / pads. Also, never put designators inside the gabarits of the component.
Use thicker tracks/polygons where the current is higher or use 2 oz FR-4 boards.

 

[vargasmongo3435]

wattaniya hi try to avoid this too close gaps, keep at least 4 mm if you can

 

[wattaniya]

@wattaniya,

Some tips:

use yellow color for the top overlay. It's more eyes friendly.

Edit: btw, your top overlay is overlapping the multi-layer / pads. Also, never put designators inside the gabarits of the component.
Use thicker tracks/polygons where the current is higher or use 2 oz FR-4 boards.

Thank u Hightech for the tips. i" ll change it.

 

[wattaniya]

wattaniya hi try to avoid this too close gaps, keep at least 4 mm if you can

This VERTEX AMP already made BY Irvyinjay.
ok I"ll Redraw that.

 

[wattaniya]

VERTEX CLASS AB.

PLS IF SOMEONE FIND ERRORS LET ME KNOW.

 

[vargasmongo3435]

hi bro change the color to this is better for the eyes see example C1 red, S1 yellow, C2 green and background black if only single layer use C2 green S1 yellow

 

[wattaniya]

OK. VARGAS.

 

[HighTec]

hi bro change the color to this is better for the eyes see example C1 red, S1 yellow, C2 green and background black if only single layer use C2 green S1 yellow

Just like that. Red overlay (silkscreen) pokes your eyes.

 

[vargasmongo3435]

You can customize at any colors, those are my favorites ones

 

[stewin]

hi all the new td version by kartino .

have fun all


TD (TRACKING DIGITAL) & E-ENGINE AMPLIFIER

TD (TRACKING DIGITAL) & E-ENGINE AMPLIFIER

hi all any ideas on this monster ?

 

[lesha10]

password and detail please inbox , thanks

Please pm me password and details

 

[birgitay]

I am thinking of ocp and dc protection circuit for Apex h900 and its derivatives.
If you have any documents can you share? I draw pcb, I can share it on the page.

 

[masood251]

Hi dears
Please share td1800 video.How is it .thanks

 

[apexaudio]

Hi dears
Please share td1800 video.How is it .thanks

Initial lockdown test for apex td1800...80vac supply.. - YouTube

 

[masood251]

Hi dear what is substitute of ic mc33078
Thanks

 

[crazymechanic]

Hey folks, I've built the stereo protection circuit from Apex, I have a couple of questions.
What do you think could be causing the DC protection to only work when both channel outputs are connected together and DC is applied but if I apply DC at either 1 or 2 channel input the DC protection doesn't work, relay stays on.
I built my board according to the schematic attached to this post. It seems to me that in the DC protection circuit there is a 220k resistor value written for both inputs but it seems to me only one 220k resistor to ground is needed there and I seem to have only one.

Also can the board be configured that the fan doesn't start spinning until some set temperature instead of being always on and at full power after 60 degrees?

 

[vdij]

My TD 1800