Hi Andrew,
Advantage
1. stablity (when low to mid volume AMP running more time on lower supply rail only)
2. Low noise (when low to mid volume)
3. low Bus pump effect ( i think, not sure)
Regards
MANOJ
Advantage
1. stablity (when low to mid volume AMP running more time on lower supply rail only)
2. Low noise (when low to mid volume)
3. low Bus pump effect ( i think, not sure)
Regards
MANOJ
Hi All,
Happy New year
Started a new work bridged class D amp.uploaded schema,if anyone tried this before please help to improve (new year gift🙂)
1. low price & easy get components used
2. THD+N 1% for mid and 10% for full output
3. FSW lock to 250KHz~300KHz max.
right now no protection added
C15&C17 must be 100V one and U1 change to LM319 if needed
Regards
MANOJ
Happy New year
Started a new work bridged class D amp.uploaded schema,if anyone tried this before please help to improve (new year gift🙂)
1. low price & easy get components used
2. THD+N 1% for mid and 10% for full output
3. FSW lock to 250KHz~300KHz max.
right now no protection added
C15&C17 must be 100V one and U1 change to LM319 if needed
Regards
MANOJ
Attachments
Last edited:
finally sir you have come back to use ucd amplifiers . with mine experiences i have found ucd to be more stable than sigma . also they are not choosy in output fets.
any way why did you not use tl 071/72 instead of lm393??
any way why did you not use tl 071/72 instead of lm393??
Hi Stewin,
This is not a UCD style one, first it start oscillation through hysterisys loop and after then use post feedback what you said UCD mode.without speaker load it will start
Post feedback style give more equal to class AB design when we applying high voltage rail and BTL mode(its only my word)
sigma delta also stable one(IRS2092)
I found the solution for my sigma delta design (AUD600 & AUD1000SD)
Regards
MANOJ
hi manoj
class ab quality , i will love to listen to the amp congratulations.
any way why use slow lm393 , also have you managed to listen to the amp at +/-80v at 2 ohms load??
class ab quality , i will love to listen to the amp congratulations.
any way why use slow lm393 , also have you managed to listen to the amp at +/-80v at 2 ohms load??
Hi Stewin,
LM393 Response(on & Off) time is 1.3uS that means 750KHz. I used only 250Khz~300KHz so no issue for me
Regards
MANOJ
Hello guys
a friend of mine found that I made a errata in my redrawing of the AUD600 that mister Manojtm made I forgot to add a 100uF 25V cap on pin 8 from the 555 to pin 1 negative side of the cap
here is the link with Sprint file please only use for diy no to " $$$$ "
https://personal.filesanywhere.com/fs/v.aspx?v=8d6c65885a6276bdab6a
Best Regards
Juan
a friend of mine found that I made a errata in my redrawing of the AUD600 that mister Manojtm made I forgot to add a 100uF 25V cap on pin 8 from the 555 to pin 1 negative side of the cap
here is the link with Sprint file please only use for diy no to " $$$$ "
https://personal.filesanywhere.com/fs/v.aspx?v=8d6c65885a6276bdab6a
Best Regards
Juan
Attachments
Hi sandeep
offset voltage problem only because of IR chip faulty.some case ic inv(74hc04) will be faulty.
NB: when MOSFET short , replace MOSFET,IRs2110 and 74HC04
Regards
MANOJ
offset voltage problem only because of IR chip faulty.some case ic inv(74hc04) will be faulty.
NB: when MOSFET short , replace MOSFET,IRs2110 and 74HC04
Regards
MANOJ