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Old 1st January 2013, 10:54 AM   #3121
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Quote:
Originally Posted by stewin View Post
thanks jlister for sharing . but in the schema like the original ir900d you can't use +/- 65vlts or above comfortably . pls change the cd4049 stage to use three inverter buffer stage like irs1500 or aud ver 1 and 1.1 amps
The schematic is already tested, I created an earlier version of it (attached pictures) however I only used +-51V for the supplies. I don't have a power supply with a higher voltage right now.

If anyone can confirm that the IRS1500 is working for +-75V and up then we can adapt the three inverter buffer stage to the schematic.
Attached Images
File Type: png IRS900.png (110.8 KB, 842 views)
File Type: jpg IMG_2785.jpg (256.0 KB, 815 views)
File Type: jpg IMG_2792.jpg (264.7 KB, 741 views)
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Old 1st January 2013, 11:30 AM   #3122
manojtm is offline manojtm  India
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Quote:
I would like to buy some IRS2092, high power MOSFET, inductors. Can you please let me know where in India I can buy them, Culcatta/Banglaore preferred.

Or any online shop in India to check price and availability.

Thanks
Raj
Hi Raj,

you can prefer Bangalore.JP street(electronic street) everything you will get.
i am living in KERALA.(malayalam Naadu)

Regards
MANOJ
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Old 1st January 2013, 12:19 PM   #3123
manojtm is offline manojtm  India
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Hi stewin,

do not need for three inverter buffer stage(IRS900),when you apply high voltage the buffer and level shift(2n5401) should be aligned properly.i mean you change resistor collector and emitter side of 2n5401 then it will work(10K & 8K2)for higher voltage.

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MANOJ
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Old 1st January 2013, 12:27 PM   #3124
manojtm is offline manojtm  India
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Hi Nmos,

do not use very low resistor like 10R for gate drive,(IR2110 will heat)safe run is 40R and not worried about THD (mackie using 47R for @450KHz)

Regards
MANOJ
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Old 1st January 2013, 12:59 PM   #3125
IRSound is offline IRSound  Germany
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Quote:
Hi Manojtm ,

Could you please start another topic for your design ? and if it's possible , move AUD600 related posts to that topic..

anyway , how can i have your amp's schematic ? because i want redesign board and change some component or their footprints etc.
Quote:
do not use very low resistor like 10R for gate drive,(IR2110 will heat)safe run is 40R and not worried about THD (mackie using 47R for @450KHz)
i think that's because mackie use Class-d for LF drive..

Regards
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Old 1st January 2013, 01:28 PM   #3126
stewin is offline stewin  Kenya
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Originally Posted by manojtm View Post
Hi stewin,

do not need for three inverter buffer stage(IRS900),when you apply high voltage the buffer and level shift(2n5401) should be aligned properly.i mean you change resistor collector and emitter side of 2n5401 then it will work(10K & 8K2)for higher voltage.

Regards
MANOJ
thanks manoj GOD bless you .
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Old 1st January 2013, 03:03 PM   #3127
manojtm is offline manojtm  India
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Quote:
i think that's because mackie use Class-d for LF drive..
Hi IR,

yes its LF i agree that but its drive MID also (MID BASS)

Regards
MANOJ
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Old 1st January 2013, 03:27 PM   #3128
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hello sir manoj can u pls start a new thread for ur amp ???? where can we talk about only about ur amps. thank u
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Old 1st January 2013, 04:07 PM   #3129
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happy new year to all diy audio members
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Old 1st January 2013, 04:59 PM   #3130
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Talking happy new year

Quote:
Originally Posted by jlester87 View Post
The schematic is already tested, I created an earlier version of it (attached pictures) however I only used +-51V for the supplies. I don't have a power supply with a higher voltage right now.

If anyone can confirm that the IRS1500 is working for +-75V and up then we can adapt the three inverter buffer stage to the schematic.
pcb nice congratulations, good job. how much power rate (w), a query that design is Nanotechnology mo.
happy new year to all forum

:c heers:
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File Type: zip nanotecnologia.part2.zip (527.2 KB, 444 views)
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