900W H-class PA Amp with Limiter

[DAMANHURI]

Hello Damanhuri,

Try to jump 1 of your AC line from protect AC supply to pro terminal that should deactivate the relay.

regards,

18 AC line or from the main supply 55 AC? connected to the point of pro?

 

[wiljj78]

18 AC line or from the main supply 55 AC? connected to the point of pro?

Yes, the 18VAC line that supplies on your protect board itself.

 

[DAMANHURI]

Yes, the 18VAC line that supplies on your protect board itself.

OK Sir, i Try tomorrow

 

[wattaniya]

hi apex sir ,
is this three step power supply correct?,
compare to ur schematic.

 

[wattaniya]

hi apex sir,
can u tell me the 10000u/ 100v caps safe. because this 100v caps directly connected to the gnd.

 

[AndrewT]

The 50Vdc from 35Vac transformer varies with mains voltage. This applies when regulation ~4%
It can be as low as 48Vdc and as high as 53Vdc

If you double this from a 70Vac tapping then the maximum voltage could be as high as 106Vdc.
If regulation is >>4%, then the worst case highest voltage can be >>100Vdc

I would not do that !

 

[rizqi]

h900 v.2

Hello Rizqi,

Thanks.. This design have not been tested yet i'm still trying to find some error before i etch, but you can also review and let me know if you found any mistake so i can correct the error.

Send me your email add so i can forward you the sprint layout file.

Regards,

i've cek your layout, thats nice n good layout, so there are more space for some component. your layout has true.. please send to : ugho_mdlx@yahoo.com
good job sir,...
thanks n regards

 

[shravanth]

hello sir can any share amplifier bridging circuit

 

[wiljj78]

i've cek your layout, thats nice n good layout, so there are more space for some component. your layout has true.. please send to : ugho_mdlx@yahoo.com
good job sir,...
thanks n regards

File sent, please check your mail.

Regards,

 

[wiljj78]

File sent, please check your mail.

Regards,

Rizqi,

Please dont forget red Jumper.

Regards,

 

[rizqi]

Rizqi,

Please dont forget red Jumper.

Regards,

Ok sir,... thanks for all...

 

[wikastana]

I need the circuit H900 TEF and design layoutnya, can help me

 

[rizqi]

I need the circuit H900 TEF and design layoutnya, can help me

Basically laout is b500 tef. B500tef has uploaded in this forum...

 

[vedmitraa]

I found these files, where are the p.c.b. files

 

[shravanth]

hello friends which amp will be better for PA use
SR200
B500
H900

 

[rizqi]

H900 most wanted

 

[SERGIODS]

I found these files, where are the p.c.b. files

In that part is complete with all the PBC data.
Please could you upload

 

[vedmitraa]

This is all what I could find, I will make p.c.b with it's help. but will have to wait

 

[handrik]

please its pcb layout

 

[SERGIODS]

This is all what I could find, I will make p.c.b with it's help. but will have to wait

: D.No problem.
I'll wait for you to finish.
on what can help you.