A Fully Integrated 85%-Peak-Efficiency Hybrid Multi Ratio Resonant DC-DC Converter with 3.0-to-4.5V Input and 500μA -to-120mA Load Range. - Peter Renz; Maik Kaufmann; Michael Lueders; Bernhard Wicht (ISSCC, 2019)

Long, Short, Monolithic - The Gate Loop Challenge for GaN Drivers: Invited Paper. - Maik Kaufmann; Achim Seidel; Bernhard Wicht (CICC, 2020)

18.2 A Monolithic E-Mode GaN 15W 400V Offline Self-Supplied Hysteretic Buck Converter with 95.6% Efficiency. - Maik Kaufmann; Michael Lueders; Cetin Kaya; Bernhard Wicht (ISSCC, 2020)

A Monolithic GaN-IC With Integrated Control Loop for 400-V Offline Buck Operation Achieving 95.6% Peak Efficiency. - Maik Kaufmann; Bernhard Wicht (IEEE J. Solid State Circuits, 2020)