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公开(公告)号：US20240267008A1
公开(公告)日：2024-08-08
申请号：US18525479
申请日：2023-11-30
发明人： INHWAN CHO , MYUNG-JIN LEE
CPC分类号： H03F3/2171 , H03F3/45475 , H03F2200/03 , H03F2200/351 , H03F2203/45424 , H03F2203/45434
摘要： An audio amplifier includes a loop filter configured to receive a differential input signal pair, a pulse-width modulation (PWM) signal generator configured to generate PWM signals, corresponding to the differential input signal pair, based on signals received from the loop filter, a driver configured to generate an output signal pair based on the PWM signals, a feedback circuit configured to feed back the output signal pair to the loop filter, and a common mode compensation circuit configured to compensate for a fluctuation in a common mode voltage of the fed-back output signal pair. The common mode compensation circuit generates a compensation voltage for each of a plurality of levels of the common mode voltage, and provides the generated compensation voltage to the loop filter.
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