3Anthony John Stratakos.High-efficiency low-voltage DC-DC conversion for portable applications[D].Doctor's Thesis,University of California at Berkeley,1998.
4Midya P,Greuel M,Krein P.Sensorless current mode control-an observer technique for DC-DC converter[-J].IEEE Trans Industrial Electronics,2001,16(7):522-526.
6Prodic A,Maksimovic D.Digital PWM controller and current estimator for a low-power switching converter[J].Proc the 7th Workshop on Computer in Power Electronics,2000,7:123-128.
7Behzad Razavi.Design of Analog CMOS Integrated Circuits[M].McGraw-Hill Companies,Inc,2001.
8Lakshmikumar K R,Hadaway R A,Copeland M A.Characterization and modeling of mismatch in MOS transistors for precision analog design[J].IEEE Journal of Solid-state Circuits,1986,SC-21 (6):532-537.