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Class D amplifier

  • US 20050231281A1
  • Filed: 06/20/2005
  • Published: 10/20/2005
  • Est. Priority Date: 10/03/2002
  • Status: Active Grant
First Claim
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1. A class D amplifier comprising:

  • a power switch for switching on/off a power supply supplying a supply voltage in response to a pulse width modulated signal;

    a correction circuit for correcting a pulse width of said pulse width modulated signal to be input to said power switch in accordance with an amplitude of a feedback signal generated from an output of said power switch; and

    an arithmetic unit for adjusting said amplitude of said feedback signal to be input to said correction circuit in accordance with a value of said supply voltage.

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