900W H-class PA Amp with Limiter

[remle114]

80vrms how much load did you use? is it loaded or no load ??

no load

 

[irvynejay]

ok thanx for the answer,,have you try to to load it with 4 r dummy and measure the actual power of the amp,,do you have scope readings bro?

 

[remle114]

ok thanx for the answer,,have you try to to load it with 4 r dummy and measure the actual power of the amp,,do you have scope readings bro?

no idont try it with dummy load cause i dont have one also idont have scope
but i test it with my 2 15 inch 600watts fane speaker and i got a reading of 54 to 60 volt ac but not in full volume input source cd player with mixer
(barag na speaker ko bro)
i test it again after i finish rewinding my trafo

 

[remle114]

ok thanx for the answer,,have you try to to load it with 4 r dummy and measure the actual power of the amp,,do you have scope readings bro?

i thought you already test this amp
co'z i see you posting this in local forum

 

[AndrewT]

Make up a set of 8r0 dummy loads.
Series them for 16r testing.
Parallel them for 4r0 testing.

Four off 8r0 dummy loads allows
1 off 32r
2 off 16r
4 off 8r0
1 off 5r33
2 off 4r0
1 off 3r2
1 off 2r67
1 off 2r0

Buy a 1000 (big discount) of wirewound 5W resistors of any single value from 2r2 to 22r. These can be combined to give your multi watt dummy 8r0 test load.

I use 20r 5W for my 200W 4r0 dummy loads.

 

[mkubawat]

no idont try it with dummy load cause i dont have one also idont have scope
but i test it with my 2 15 inch 600watts fane speaker and i got a reading of 54 to 60 volt ac but not in full volume input source cd player with mixer
(barag na speaker ko bro)
i test it again after i finish rewinding my trafo

Dear remle
when you got a reading of 54 to 60 volt ac then you check for clip, if not please check, because i found clipping with IR2117 version (i use same trafo)

 

[emmi]

My bass is dry. What can be?
20x 10.000uF 80v caps with this and 16 pairs of 2SC5200 1943.
2N5401-5551-92 MPSA42 exchanged for.
16 irf2807 mosfets were used.

Is your problem solved?

 

[HighTec]

no idont try it with dummy load cause i dont have one also idont have scope

aaahhh...remle mate, first you need to invest money in a decent dummy load and oscilloscope and then start to build a monster 900W amplifier. Well, at least eBay is full of resistors and second hand oscilloscopes for a fair price. Anyways, if you want to stick around with electronics for a longer period, oscilloscope is must have. Just a tip.

Resistors for a dummy load. Lot Of 25 EBG Ultra High Power Resistors UXP/300 10 Ohms | eBay

 

[iiee3602]

sir apex, can i used irf640 instead of irf540? thanks!

 

[black]

Does anyone know how this amplifier works? youtube video working please best regards

 

[iiee3602]

can i use IRF640 instead of IRF540

 

[electra_ina]

See post #1906

 

[black]

CHENSHTAP please if you can post amplifier pcb layout sprint format of the post 1930 best regards BLACK

 

[sameer x1]

APEX TEF schematic

Dear sir Apex,

Hello i can post PCB schematic for Diy Members





Thanking you
Sameer X1

 

[sameer x1]

APEX TEF schematic

Dear sir Apex,

Hello i can post PCB Schematic for Diy Members


Thanking you
Sameer X1

 

[irvynejay]

Does anyone know how this amplifier works? youtube video working please best regards

yes that amp is working good loud and clear its M10/K10 clone by Chestap and its my DIY

 

[kikoman46]

Dear sir Apex,

Hello i can post PCB Schematic for Diy Members


Thanking you
Sameer X1

sir sameer,
thanks for the pcb design, can you tell me where could i find all other infos on these ampli? is this the h900 tef design?


thanks so much.

 

[mj777]

pcb size

Dear sir Apex,

Hello i can post PCB Schematic for Diy Members


Thanking you
Sameer X1

Dear Sameer X1 can u post the final pcb with component lay out? and what is the size of your pcb?
regards,
mj777

 

[ravpreet420]

hello sameer x1
plz sir post size of pcb and post layout file .

 

[black]

SIR IRVYNEJAY is good step-up scheme from M10 amplifier?