diemilio
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Hi everyone. I'm trying to design a high efficiency output stage for an audio amplifier. I want to keep my design simple so I found this class D amp (attached circuit) on the web but it seems to me that I'm missing something here cause if you notice the LC filter is used to get the original audio wave (in this case the sine wave) from a PW modulated signal, so at resonace the capacitor will act as very low impedance making a high current (very high) flow through it making my efficency 0!!!.
How can I modify my circuit to get the supposed 90% efficiency of a class D amp???
Thanks for your help,
diemilio
How can I modify my circuit to get the supposed 90% efficiency of a class D amp???
Thanks for your help,
diemilio