Class d diy amplifier

[Andrew Lebon]

https://www.youtube.com/watch?v=gE4b7V1sXtE
Hello
greetings class d stereo amplifier easier to diy than AB class for high output power vedio shows ease in construction of dclass amp
TRANSFORMER 65 0 65 AC 3KVA DC 95 0 95
FSW 250KHZ
POWER OUTPUT 8 OHMS 450 WATTS
4 OHMS 750 WATTS
2 OHMS 1500 WATTS
1 PAIR MOSFETS PER CHANNEL FDA69N25
MORE to come DCLASS on .5 ohms load
goodbye ab class:yahoo:
warm regards
Andrew Lebon

 

[Hari655]

Great.....!!

Could you source me 2 completed boards if possible..i am not that techie to get the things done from scratch...:-(

 

[Andrew Lebon]

Hi Hari655
greetings yes 2 complete TESTED boards can be sent
warm regards
Andrew

 

[harrsha]

Does the kit include all the 3 parts....amplifier...power controller and transformer ?

 

[keith_correa]

Hi, in the youtube video that you linked, I didn't quite understand what you said about the SMPS. Can you tell us what it is for?

 

[Andrew Lebon]

Hello
greetings this class d amp kit requires 12 volt dc auxillary suppy best supplied by 12 volt smps adaptor and main supply is 95 0 95 dc so 3kva torridal transformer is required
amp is stable in 2 ohms load impedance only kit is supplied no power supply limiterand protection are extra next model is
the high power version working voltage is 130 volts dc +/- 90 volts ac speaker out
warm regards
Andrew

 

[shkumar4963]

Amplifier measurement that determine amplifier quality
We all know RMS power capacity, dynamic power capacity, frequency response, current capacity, output impedence and distortion are important measures.

What else is important in an amplifier. How can we tell an amplifier is of high quality based on hard engineering measurements.

I know that auditioning is needed to detect finer points of amplifier design. But here I am looking for things that can be objectively measured.

What can we measure in NAD and Parasound that is not available in Yamaha, Denon or Onkyo.