hi apex
greetings
1 any substitute for diode BAV 21
2 any substitute for diode SAF 1603 very hard to find
can you show inputstage schematic and power supply schematic
waiting to make your amplifier thanking you
greetings
1 any substitute for diode BAV 21
2 any substitute for diode SAF 1603 very hard to find
can you show inputstage schematic and power supply schematic
waiting to make your amplifier thanking you
I work on my website EUnet Hosting
Most information about my work will be there. I will have more time for reply when site was finished.
Regards Mile
Most information about my work will be there. I will have more time for reply when site was finished.
Regards Mile
hi apexaudio
greetings can you share power supply schematic
1 transformer used with filter capcitors
2 current capcity amperes for full output 900 watts
collecting parts for amplifier
thanking you
andrew lebon
greetings can you share power supply schematic
1 transformer used with filter capcitors
2 current capcity amperes for full output 900 watts
collecting parts for amplifier
thanking you
andrew lebon
I will post schematic for PSU and protect soon.
Full power of this amplifier is not 900W. Power with THD 0,5% is 1200W on 4R load, and 1800W on 2R load. Output transistor must be MJL4281A/MJL4302A for maximum power. For step mosfet use IRF2807. MJL21193/MJL21194 can be used for full power on 4R load.
Transformer minimum 1500VA for one channel 4X40V AC + 2X20V for protection circuit. 2X35A bridge and 8X10000uF/63V for PSU... are you still interesting to build this amplifier?
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Hi Mile 🙂
Thanks for sharing the class H circuit, having looked at it & it's simplicity i think i'll be incorporating it into a few amps that i'll be building in the future 😉
You have just saved me the hassle of building a switchmode PSU even though i didn't realise it at the time when i saw your circuit. Instead i can use transformers i already have but build a high power high frequency charge pump circuit to power the high voltage rails 😀
Cheers for making me think, & for saving me time, hassle & money
Bests, Mark
Thanks for sharing the class H circuit, having looked at it & it's simplicity i think i'll be incorporating it into a few amps that i'll be building in the future 😉
You have just saved me the hassle of building a switchmode PSU even though i didn't realise it at the time when i saw your circuit. Instead i can use transformers i already have but build a high power high frequency charge pump circuit to power the high voltage rails 😀
Cheers for making me think, & for saving me time, hassle & money
Bests, Mark
Class H DIY good idea,...
check RMX 5050 schematic for DIY ideas...
I want spend my time to add Class H in Quasi NMOS Amp too and share experience with another DIY people,...actually i dont have much time for DIY
check RMX 5050 schematic for DIY ideas...
I want spend my time to add Class H in Quasi NMOS Amp too and share experience with another DIY people,...actually i dont have much time for DIY
plz send me the schematic and the copper side pcb layout for this amp very much interested with high power amps.......
email id - ardhendu.san@gmail.com
regards
sekhar
email id - ardhendu.san@gmail.com
regards
sekhar
IR2117 give circuits with best possible stability for driving mosfets. Uses in industry concert amplifiers.
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hi apexaudio
greetings thank you for all your replies i WILL make your amplifier very much interested it will be my first h class project so i am reading all H CLASS amplifier circuits
to see how they work.thank you for the interest shown
thanking you
andrew lebon
greetings thank you for all your replies i WILL make your amplifier very much interested it will be my first h class project so i am reading all H CLASS amplifier circuits
to see how they work.thank you for the interest shown
thanking you
andrew lebon
When you done first one in H class, you never come back on AB class for powerfull amps.
Regards Mile
