The following papers, schematics and resources helped us along our way in design, implementation, testing and debugging.
"Simple Maximum Power Point tracker for Photovoltaic Arrays", Yan Hong Lim and D.C Hamill, IEEE 2000: Electronics Letters Online No.:20000730
Erickson, Robert. Fundamentals of power electronics. Norwell, Mass: Kluwer Academic, 2001.
Biranchinath Sahu, and Gabriel A. Rincón-Mora, "A Low Voltage, Dynamic, Noninverting, Synchronous Buck-Boost Converter for Portable Applications", IEEE TRANSACTIONS ON POWER ELECTRONICS, VOL. 19, NO. 2, MARCH 2004