1.Improving the efficiency of class-D audio amplifier systems using envelope tracking DC-DC power supplies
2.Modeling and analysis of PSRR in analog PWM class D amplifiers
3.5.2 A 118dB-PSRR 0.00067%(−103.5dB) THD+N and 3.1W fully differential class-D audio amplifier with PWM common-mode control
4.A 101 dB PSRR, 0.0027% THD + N and 94% Power-Efficiency Filterless Class D Amplifier