A self-biased 5-to-60V input voltage and 25-to-1600µW integrated DC-DC buck converter with fully analog MPPT algorithm reaching up to 88% end-to-end efficiency. - Stefano Stanzione; Chris van Liempd; Rob van Schaijk; Yasuyuki Naito; Refet Firat Yazicioglu; Chris Van Hoof (ISSCC, 2013)

A High Voltage Self-Biased Integrated DC-DC Buck Converter With Fully Analog MPPT Algorithm for Electrostatic Energy Harvesters. - Stefano Stanzione; Chris van Liempd; Rob van Schaijk; Yasuyuki Naito; Refet Firat Yazicioglu; Chris Van Hoof (IEEE J. Solid State Circuits, 2013)

Reference-free Calibration in Sensor Networks. - Raj Thilak Rajan; Rob van Schaijk; Anup Das 001; Jac Romme; Frank J. Pasveer (CoRR, 2018)