1.5 KW Class D amplifier based on IRS2092, Commercial

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MicrosiM

MicrosiM

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These are double face PCBs, and you must make them, you only can pay the price of PCBs production and then you can assemble them

let me know
 
P

Petr

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Good day Mr. Microsim, I am testing my own variant with IRS2092, can I inspire from your schematic ? Password missing. Thank you...
 
MicrosiM

MicrosiM

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Petr said:
Good day Mr. Microsim, I am testing my own variant with IRS2092, can I inspire from your schematic ? Password missing. Thank you...
Click to expand...


My schematic is almost the same one from the IR application note for IRS2092
 
Dimonis

Dimonis

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Can show you my applications of 2092

First : With dual mosfet IRFI4212 +/-35V power supply , oscilating freq. 400kHz , 4Ohm load , 10%THD at 150W , 0.03% at 100W, 0.006 at 1-50W.

IMG_3377.jpg
IMG_3379.jpgIMG_3380.jpgIMG_3381.jpgTHD freq2.JPGTHD.JPG



Second : output mosfets are IRFB5615 +/-55V supply ,4Ohm , 350kHz ,max power - 320W ( 10%THD) , 1-100W - 0.02%THD.

DSC03381_exposure.jpgDSC03399_exposure.jpgDSC03405_exposure.jpg
 
P

Petr

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Nice job, I prefere to place on PCB good Sallen Key 4th order low pass filter, because original "RC filter" is not sufficient. 6dB/oct only...
 
Dimonis

Dimonis

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Petr said:
Nice job, I prefere to place on PCB good Sallen Key 4th order low pass filter, because original "RC filter" is not sufficient. 6dB/oct only...
Click to expand...
Didn't catch you , could you place some schematic on this subject?
I think that 4 order would be a problem at power after 100Watts.
 
T

tranbaobien

New member
hi all !
I am new in class d. i built irs2092 amps working base on amps-7d, +/- 50Vdc .fs~380 khz,
Rgate 15 ohms and 5819 , coil 22uh and .47uf/250v, with no input signal , but the output have some hi frequency noise.

Can anyone help me avoid the noise ?
 

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MicrosiM

MicrosiM

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repomessoni said:
Hi Microsim, if is possible have the password for the schematic i have some time and would like to partecipate to this Class D project by making my version of the PCB, I have some experience with amplifiers and single, dual layer PCB.
Just for reference the pdf of two PCB I made, one is a board with 4 ch line mixer + 3 ch TDA amplifier (2 ch and 1 sub), the other is a 300w mono class AB amplifier.
Click to expand...

I am sorry for the late response, I missed the post!


I don't know if you can make the PCB and test it, its double sided PCB


please let me know
 
R

repomessoni

New member
MicrosiM said:
I am sorry for the late response, I missed the post!


I don't know if you can make the PCB and test it, its double sided PCB


please let me know
Click to expand...



Hi Microsim, I have an old version of PCB CAD but work very well and 2 layer PCB is not a big issue, let me see the schematics and I will see how to move forward.
As soon will be ready a first version we can evaluate toghether before start to make the PCB.

I do some repair (for friends) of AV equipment (pro and home, SMPS included) and I have a dedicated bench with PC+EMU sound card+ few software, 50MHz Philips scope (quite old but still in well shape), DC dual power supply, 2.5kw variac, JBC soldering/desoldering station (for TH and SMD components), LG function generator, diy 8/4 ohm 2x1kw resistive dummy load.
With my tools I think will be not a problem make the PCB and test it, of course will take time, depend on complexity and what parts of this schematic can be excluded because not really important for a diyers projetc.
 
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