Low profile LED off-line phase-cut dimming ballast with piezoelectric transformer. - Li Le; Yujia Yang; Matthias Radecker (IAS, 2015)

Estimation of Energy Transfer Function Sensitivity using an Energy-Based Heuristic Operator Method. - Matthias Radecker; Li Le; Ricardo Nunes Marchesan; Ricardo Diniz; Filipe Landerdahl Albanio; Fabio Ecke Bisogno (ISCAS, 2019)