Optimization of control switch for energy harvest circuit using electrostatic charges. - Helder R. Florentino; Raimundo C. S. Freire; Caio Florentino (APCCAS, 2010)

Electrostatic vibration energy harvester with piezoelectric start-up generator. - Helder R. Florentino; Raimundo C. S. Freire; Alan V. S. Sà; Caio Florentino; Dimitri Galayko (ISCAS, 2011)