These are just sensing, (some not good) ex 1= problem at resonance point.
where is the method (for decrease current on amplifier)?
instead switch-off driver?
Yeah they are sensing methods and they can be implemented to control gain of amplifier rather than switching off the amp.
If you sense the current thru inductor and then convert it to dc Or sense from other mentioned methods, you can use it to limit the amplitude of input signal thru compressor methods using LM13700 or NSL-32 opto LDR.
You can also feed the sensed voltage across the current sense resistor at output to the inverting input of input opamp/comparator to limit it directly.
Why do you want to do this?
If you just want to understand Class D design, why not start small? A nice 100 Watt amp is an easier problem and they are handy.
Why do you need over a kilowatt? Do you have some speaker that can handle such power? Could a different speaker achieve your sonic goal with less power? If it is to drive an array of speakers, why not give them an amp each?
Finally, if you really need over a kilowatt into 8 ohms, why not just buy a pair of Hypex modules -- rated 700 W at 1% THD or 600 W at 0.04% into 4 ohms -- and bridge them?
If you just want to understand Class D design, why not start small? A nice 100 Watt amp is an easier problem and they are handy.
Why do you need over a kilowatt? Do you have some speaker that can handle such power? Could a different speaker achieve your sonic goal with less power? If it is to drive an array of speakers, why not give them an amp each?
Finally, if you really need over a kilowatt into 8 ohms, why not just buy a pair of Hypex modules -- rated 700 W at 1% THD or 600 W at 0.04% into 4 ohms -- and bridge them?
Hello Nikula
I sincerely don't know witch is better ...the amp or the SMPS.
The SMPS is very big. that is a ETD59 core right?
Care to comment a bit on the SMPS?
Best regards,
I congratulate
Can show the scheme of your amplifier, I think what probably to translate the amplifier in class BD, efficiency should grow still.
Do you used this schematic: http://www.diyaudio.com/forums/clas...8ohms-class-d-amplifier-zero.html#post1945252 ?
I am very interesting in your SMPS schematics!
hello moro
so how is the design going?
started building yet?
i wish to make a selfoscilating classD amp some day...
for now it's knowhow gathering time
Best regards,
Savu
Do you used this schematic: http://www.diyaudio.com/forums/clas...8ohms-class-d-amplifier-zero.html#post1945252 ?
I am very interesting in your SMPS schematics!
Nice
You are after SMPS also
, So why you deny that ?FOX
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