Tong Ge Meng Tong Tan Joseph Sylvester Chang Design and analysis of a micropower low-voltage bang-bang control class D amplifier. 224-227 2005 conf/iscas/2005 ISCAS (1) http://dx.doi.org/10.1109/ISCAS.2005.1464565 db/conf/iscas/iscas2005-1.html#GeTC05