300W Class D Amplifier w. Mosfet output

1287

15:46:37

* Ramp generator for true PWM modulation.
* 240 kHz switch frequency. 
* Flanks on mosfet gates are tuned for best square.
* Grounded source mosfet output.
* Both mosfets are based on IRF9530n specs.
* Parasitic mosfet caps added in circuit.
* For 8 ohm speaker 1st order LP filter @ 40 kHz.
* Series resonance circuit shorting 240 kHz on output.

Notes:
Going above 20us in the plot drastically reduces the quality of the simulation result!

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published 8 years ago

nurhasim

8 years ago

Mass minta no wa nya dong

Roaldchr

8 years ago

I dont speak that ^^^

2yu

8 years ago

It is has distortions and it clips

Roaldchr

8 years ago

It doesn't clip, and the space is limited, so I couldn't do more about the remaining switching noise. Besides I doubt you could hear the remains, it's 240 kHz.

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