Testing of Power Amplifier (1)

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Uploaded by on Oct 24, 2008

I designed this PWM power amplifier. However, at initial stage, it has some minor problems while running. The video shows how I test the pins of circuit and try to identify the problem.
I have to thank Prof. ZHAO ShouZhi who gave me the valuable suggestion of selecting the components.

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Science & Technology

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Standard YouTube License

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  • I think he is testing a class D amp unless he is just putting square wave at the input. Class D amp work pwm in which triangle and the ac input is mixed in a scotchky comparator to produce square wave. It more elaborate than that but is the basic idea. The average of the two wave result in a pulse width modulated output.

  • What did the scope show? Did it mean the square waves where good and the two horizontal lines were a fault?

  • What's abou specs? Power output, supply voltage and etc.

  • cool nice looking amp

  • What are you trying to show? This doesn't inform.

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