Title :
Several alternatives for low output voltage on board converters
Author :
Cobos, J.A. ; Alou, P. ; Garcia, O. ; Prieto, R. ; Uceda, J. ; Rascón, M.
Author_Institution :
Div. de Ingenieria Electron., Univ. Politecnica de Madrid, Spain
Abstract :
This paper shows several approaches to generate low output voltage (3.3 V and 1.5 V) through on board converters. They all are supplied from a DC voltage ranging between 3 V and 6 V (valid for 5 V or 3.3 V input). With such low input and output voltages, synchronous rectification is mandatory to keep efficiency at reasonable levels. Magnetic components play a key role when Self Driven Synchronous Rectification (SDSR) is used. Several technologies have been used to build them, namely standard multilayer PCB, specific flex foils and thick film on ferrite. Three prototypes have been built using these technologies
Keywords :
AC-DC power convertors; power MOSFET; power semiconductor switches; rectifying circuits; switching circuits; 1.5 V; 3 to 6 V; 3.3 V; 5 V; low-output voltage; magnetic components; multilayer PCB; onboard power converters; power MOSFETs; self-driven synchronous rectification; specific flex foils; synchronous rectification; thick film-on-ferrite; Ferrites; Low voltage; Magnetic multilayers; Magnetic resonance; Prototypes; Rectifiers; Substrates; Switches; Switching frequency; Thick films;
Conference_Titel :
Applied Power Electronics Conference and Exposition, 1998. APEC '98. Conference Proceedings 1998., Thirteenth Annual
Conference_Location :
Anaheim, CA
Print_ISBN :
0-7803-4340-9
DOI :
10.1109/APEC.1998.647686
