My class D amp

[manojtm]

Hi,

new working All smd PCB

Regards
MANOJ

 

[andrewlebon]

Hello Manojtm
greetings 141425L for Volume and Limiter with LED indication can this limiter be used for AB class amplifiers
warm regards
andrew

 

[manojtm]

Hi andrew,

yes u can use for class AB amp

Regards
MANOJ

 

[andrewlebon]

Hi Manojtm
thanks for replying can you pm about the limiter
warm regards
andrew

 

[manojtm]

Hi andrew,

I used APEX CLIP+SIG+POWER Indication circuit with little modification

Regards
MANOJ

 

[manojtm]

Hi andrew,

schema for limiter

Regards
MANOJ

 

[andrewlebon]

THANKS manoj for files

 

[andrewlebon]

Hi Manoj
greetings what are the numbers of the 2 transistors used
warm regards
andrew

 

[manojtm]

Hi andrew,

Use any NPN Transistor. I used BC847 SMD

Hi All,

Video shot attached to FB just now { using my mobile cam sorry for the clarity }
https://www.facebook.com/photo.php?v=743477502375395&l=7469160341489528029

Regards
MANOJ

 

[manojtm]

Hi Hadi,

All three PCBs Pictures

 

[Insomnia]

Hi Manoj
greetings what are the value of LDR ?

Can I use NSL-32

 

[manojtm]

Hi Insomania,

Yes, NSL-32 works better

Regards
MANOJ

 

[syaelend]

Hi Mr. Manoj,
Regarding to AUD600 Class D amp. I have a question..
Is there any problem if we use CMOS IC CD4049 instead 74HC14.
The advantage is we don't have to put IC 7806 regulator.

Thanks in advance
Syaelend

 

[manojtm]

Hi Syaelend,

for cd4049 use same Bias volt (12V) don't need 7806 reg. IC

NB: using TTL/high speed ic will give noise free sound

Regards
MANOJ

 

[syaelend]

Dear Mr. Manoj,

If we use TTL at this case 74HC14, is possible if we use 7805 regulator IC instead 7806?

I try to Re-design the PCB OF AUD600 including OCP feature.
Please give me some advices...



Best Regards

Syaelend

 

[manojtm]

Hi,

use 7805 no issue

great, good design

Regards
MANOJ

 

[Insomnia]

Do not use CD4069 HEF4069, amp not work stable longtime

 

[manojtm]

Hi,

Do not use CD4069 HEF4069, amp not work stable longtime

work stable,my new AUD1000/1500 design. it will support IRFP250 MOSFET with 300KHz without any noise and it will start without signal,(3x 8R load)2.6R load with +/-75V DC supply rail working cool

Regards
MANOJ

 

[Insomnia]

Hi,


work stable,my new AUD1000/1500 design. it will support IRFP250 MOSFET with 300KHz without any noise and it will start without signal,(3x 8R load)2.6R load with +/-75V DC supply rail working cool

Regards
MANOJ

Where can I order AUD1000/1500 design, do you have website ?

please send me pm

regards

 

[syaelend]

Dear Mr. Manoj,

CD4069 has pin to pin compatible with 74HC14.. The difference is on the maximum supply Voltage.. So..are we can use both CD4069 and 74HC14 without any issues?..


Regards.
Syaelend