Waveforms is OK.Hi Aleks,this is the waveform i measure on both out of Ka before 1N4148, 5 V/div. @ 5us,please check.
Hi aleks,the voltage before the coil is 20 to 60 mv,but after a couple of minutes the voltage goes to negative value (-100mv ) and continue to it's negative reading,i remember this senario on class A amplifier something like (thermal run-away)but my output FET'S is in normal temp,less than 40 deg,my frequency set to 160khz any solution?hope to hear more from you.thank's.
d amp by Acca
Green at the upper part is a 12V indicator,red lower right osc. indicator,red on lower left OCP,blue caps for snubber if ever needed, by the way Aleks please post a schematic with feedback, how can it be implemented on this circuit?thanks.
Green at the upper part is a 12V indicator,red lower right osc. indicator,red on lower left OCP,blue caps for snubber if ever needed, by the way Aleks please post a schematic with feedback, how can it be implemented on this circuit?thanks.
Attachments
Oh 90N20,90A 200V
This can be music welding inverter
those are the only mosfet, I have
and pure igbt
if it works maybe buy irb4227
the kicker amp uses 6 of these in single subwoofer IXGQ90N33TCD1 and are very power.
that's why I like this design in order to vary the freq. for use with these IGBTs.
and are not amp. welding if not for ears popping
thanks.
: Wave2s:: Wave2s:: Wave2s:: Wave2s:
Last edited:
those are the only mosfet, I have
and pure igbt
if it works maybe buy irb4227
the kicker amp uses 6 of these in single subwoofer IXGQ90N33TCD1 and are very power.
that's why I like this design in order to vary the freq. for use with these IGBTs.
and are not amp. welding if not for ears popping
thanks.
: Wave2s:: Wave2s:: Wave2s:: Wave2s:
???hi kanon please post a design with feedback,cause the original schematic will produce dc at higher output,thank's
- Home
- Amplifiers
- Class D
- DIY Good Class D amplifier