My class D amp

Hello

Hello Manojtm
greetings could you explain the advantage using CLASS H step
driver to a dclass amp i tried with QSC lm311 step MV70 V DC
HV 140 VDC
warm regards
Andrew:confused:
 

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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
 

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Last edited:
finally sir you have come back to use ucd amplifiers

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 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

Sir comparator lm311 cam use? Thakss
 
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 " $$$$ " :wiz:

https://personal.filesanywhere.com/fs/v.aspx?v=8d6c65885a6276bdab6a

Best Regards
Juan
 

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