Title :
Synchronous rectifiers vs. Schottky diodes in a buck topology for low voltage applications
Author :
Djekic, Ognjen ; Brkovic, Miki
Author_Institution :
Power Electron. Group, California Inst. of Technol., Pasadena, CA, USA
Abstract :
Comparison of a regular and synchronous buck topology for low voltage applications is given. Loss distribution and overall circuit efficiency are calculated for both topologies as a function of switching frequency and output current. It was found that the regular buck has always better efficiency for a certain combination of load current and switching frequency. Experimental results are shown to verify predictions
Keywords :
DC-DC power convertors; Schottky diodes; losses; rectifying circuits; switching circuits; Schottky diodes; buck topology; circuit efficiency; load current; loss distribution; low voltage applications; regular buck topology; switching frequency; synchronous buck topology; synchronous rectifiers; Capacitors; Circuit topology; Costs; Inductors; Low voltage; Power electronics; Rectifiers; Schottky diodes; Switches; Switching frequency;
Conference_Titel :
Power Electronics Specialists Conference, 1997. PESC '97 Record., 28th Annual IEEE
Conference_Location :
St. Louis, MO
Print_ISBN :
0-7803-3840-5
DOI :
10.1109/PESC.1997.616947
