CLASS D AMPLIFIER
A single-end-output class D amplifier is provided that handles a load such as stereo headphones without using an expensive part such as a crystal resonator or transformer. Class D amplifier 200 is equipped with PWM circuits 221 and 222 that perform PWM modulation of an input signal and output two op...
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| Format: | Patent |
| Sprache: | eng |
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| Zusammenfassung: | A single-end-output class D amplifier is provided that handles a load such as stereo headphones without using an expensive part such as a crystal resonator or transformer. Class D amplifier 200 is equipped with PWM circuits 221 and 222 that perform PWM modulation of an input signal and output two opposite-phase PWM outputs, PWM output buffers 251 through 254 that amplify differential outputs of PWM circuits 221 and 222 respectively using power supply voltage VDD, and inductors 261 through 264 that combine PWM outputs amplified by PWM output buffers 251 through 254. |
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