Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Akihito Tsukamoto0
Date of Patent
September 21, 2010
0Patent Application Number
123326890
Date Filed
December 11, 2008
0Patent Primary Examiner
Patent abstract
A single-end-output class D amplifier handles a load, such as stereo headphones, without using an expensive part such as a crystal resonator or transformer. The class D amplifier is equipped with PWM (Pulse Width Modulation) circuits that perform pulse width modulation of an input signal and output two opposite-phase PWM outputs, PWM output buffers that amplify differential outputs of PWM circuits using a power supply voltage, and inductors that combine PWM outputs amplified by the PWM output buffers.
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