Amplifier with digital input and digital pwm control loop
作者： Eric Soenen , Martin Kinyua
DOI:
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摘要: A class D amplifier is configured to accept a digital input signal wherein the control loop of employs hybrid filter merged with front-end sigma-delta ADC converter. The term refers using both and analog components in which delay elements serve as shift registers while coefficients are analog. converts PDM data into step-wise sinusoidal signal. receiving feedback subtracts from continuous result signal, without decimation, passes through filter, PWM generator, pre-driver, provide power load.
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