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Class D Switching Power Amplifiers and Power D/A conversion

ucd 25 watts to 1200 watts using 2 mosfets
ucd 25 watts to 1200 watts using 2 mosfets
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Old 12th April 2012, 09:54 AM   #1891
manojtm is offline manojtm  India
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hi classd2008
my working proj. use 132khz
hi andrewlebon
ionutzxpo says correctTrr 100-200ns body diode for 250-300khz aplication
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Old 12th April 2012, 10:31 AM   #1892
classd2008 is offline classd2008  Puerto Rico
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manojtm Where's the schematic or project that you said put??
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Old 12th April 2012, 11:22 AM   #1893
andrewlebon is offline andrewlebon  India
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Hi
greetings thanks for the advice i am using FDA series mosfets and prototype is working
very good anyway thanks all of you
warm regards
andrew lebon
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Old 12th April 2012, 01:01 PM   #1894
manojtm is offline manojtm  India
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Hi all

attaching my old design again

RGDS
manoj
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File Type: jpg UCD625.JPG (562.8 KB, 1337 views)
File Type: jpg UCD625 Pro.JPG (290.4 KB, 1194 views)
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Old 12th April 2012, 01:47 PM   #1895
Pafi is offline Pafi  Hungary
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Quote:
Originally Posted by andrewlebon View Post
HELLO
greetings is this mosfet a good choice for high power d class amps
IXFH88N30P
warm regards
andrew lebon
Yes, it is very good for sub-amp, fsw=150 kHz, but only with disabled/replaced diode (series UltraLow Vf schottky, parallel FRED)! + pnp gate booster.
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Old 12th April 2012, 06:31 PM   #1896
classd2008 is offline classd2008  Puerto Rico
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manojtm as this temperature for high power?
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Old 13th April 2012, 03:18 AM   #1897
andrewlebon is offline andrewlebon  India
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hello
greetings just want to ask if IR2110 candrive 2 pairs IRFP250N as i am new to class d this is a picture of 2 pairs irf250n being driven by ir2110
warm regards
andrew lebon
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Old 13th April 2012, 03:49 AM   #1898
andrewlebon is offline andrewlebon  India
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Hi Manojtm
greetings can you give correct tl431 there are so many packages of tl431 which one are you using i also need 2 ampere 12 volts fo IR2110
trying to LM2576T but i cant get 100uh inductor so i try TL431
warm regards
andrew lebon
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Old 13th April 2012, 10:13 AM   #1899
manojtm is offline manojtm  India
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Hi anrewlebon,

i mentioned on schem. R A C of TL431
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Old 13th April 2012, 11:20 AM   #1900
manojtm is offline manojtm  India
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Hi All

Attaching NEW DESIGN
SOME PART DOTED GREEN LINE IS NOT TESTED
ANY ONE NEED HIGH WATT USE IRFP23N50L WITH +140 -140 YOU WILL GET 2K2

RGDS
MANOJ
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