A high efficiency 0.5W BTL class-D audio amplifier with RWDM technique. - Simon Cimin Li; Vincent Chia-Chang Lin (ASP-DAC, 2004)

New high-efficiency 2.5 V/0.45 W RWDM class-D audio amplifier for portable consumer electronics. - Simon Cimin Li; Vincent Chia-Chang Lin; Krissanapong Nandhasri; Jitkasame Ngarmnil (IEEE Trans. Circuits Syst. I Regul. Pap., 2005)