SWITCHING POWER SUPPLY DESIGN: TUTORIALS and

TOPOLOGIES: THEORY and

SAMPLES of PSU SCHEMATICS FOR ENGINEERS AND HOBBYISTS 

Texas Instruments (formerly Unitrode) seminars: all manuals from 1983 to 2010 Switching voltage regulator basics an introduction to DCDC topologies and measurement techniques SMPS design SWITCHMODE™ reference manual from ON Semiconductor Power factor correction (PFC) online handbook My favorite electronics and SMPS design books
POWER ELECTRONICS TECHNOLOGY LECTURES and GUIDES FOR STUDENTS
Fundamentals of power electronics (instructor's slides see their terms of use)Electrical conversion reference textbook online for advanced readers drivers, applications, and components Mathematics of electric energy, power factor and THD definitions and equations 
Selection of converter topology Switch mode voltage regulator schematics and formulas Single transistor forward converter Forward converter with active clamp and reset by Microsemi Flyback  the simplest SMPS Phase shifted ZVT (soft switched) full bridge Currentfed pushpull circuit Currentdoubler rectifier Half bridge converter Pushpull converter design procedure SEPIC converter Topologies and optimization of power factor correction circuits Latest inventions in power electronics 
48VDC to DC reference circuits 12 Volt ACDC flyback switching power supply: schematic, PCB, theory of operation ATX power supply with PFC Switchmode PSU for car audio Transformerless power supplies basics: resistive and capacitive circuits
SYNCHRONOUS
Synchronous rectification for low voltage outputsRECTIFIER CIRCUITS SYNC THEREFORE I AM Synchronous rectification review and analysis Forward converter with synchronous rectifiers POWER ELECTRONICS WEBSITES AND PORTALS
SMPS Technology knowledge base  tips, resources, solutions for problemsBen Gurion power electronics group  tutorials, publications, models How2Power  articles, guides and practical answers to design questions 
