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Efficient performance simulation of class D amplifier output stages

Publiceringsår: 2005
Språk: Engelska
Sidor: 32-35
Publikation/Tidskrift/Serie: 23rd NORCHIP Conference, 2005.
Dokumenttyp: Konferensbidrag


Straightforward simulation of amplifier distortion involves transient simulation of operation on a sine wave input signal, and a subsequent FFT of the output voltage. This approach is very slow on class D amplifiers, since the switching behavior forces simulation time steps that are many orders of magnitude smaller than the duration of one period of an audio sine wave. This work presents a method of simulating the amplifier transfer characteristic using a minimum amount of simulation time, and then deriving THD from the results.



  • Technology and Engineering


21-22 Nov. 2005
  • ISBN: 1-4244-0064-3

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