I'm developing a design with the IRS2092 + IRFP4227.
Strangely I have a huge DC offset (-500mV to - 1.1V) at the output.
(also with input shorted to ground)
Also the sine wave is highly distorted with a lot off odd order harmonics (third and fifth) (even above the second order)
This doesn't change with different inductors, load or no load, deadtime etc
Any suggestions where to look further?
Or in other words, what causes odd order harmonics in Class-D designs?
Strangely I have a huge DC offset (-500mV to - 1.1V) at the output.
(also with input shorted to ground)
Also the sine wave is highly distorted with a lot off odd order harmonics (third and fifth) (even above the second order)
This doesn't change with different inductors, load or no load, deadtime etc
Any suggestions where to look further?
Or in other words, what causes odd order harmonics in Class-D designs?
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