Ideal Class-D PA question

crutschow

Joined Mar 14, 2008
27,459
That sinewave appears to be ringing in the circuit with a frequency of about 1GHz.

What are you using such a fast switching frequency (1GHz!). That's several orders of magnitude higher than could be done in a practical amplifier.
 

crutschow

Joined Mar 14, 2008
27,459
For realization I'm using fast switching transistor such as GaN-HEMT which support up to 2GHz.
But what's the reason for using such a high frequency? It just creates a lot of switching losses. I don't see any reason for that in a Class-D power amp. :confused:
 
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