Motoki Katayama Hiroo Sekiya Takashi Yahagi An interleaved class E<sup>2</sup> dc/dc converter. 2833-2836 2008 ISCAS http://dx.doi.org/10.1109/ISCAS.2008.4542047 conf/iscas/2008 db/conf/iscas/iscas2008.html#KatayamaSY08