SLUA159 Datasheet, PDF (23/28 Pages) Texas Instruments – Zero Voltage Switching Resonant Power Conversion

APPLICATION NOTE
the peak resonant voltage to the input rails
avoids the high voltage overshoot concerns of
the single switch converters, while transformer
reset is accomplished by the bidirectional
switching. Additionally, the series transformer
primary and circuit inductances can beneficial,
additives in the formation of the total resonant
inductor value. This not only reduces size, but
incorporates the detrimental parasitic generally
snubbed in square wave designs, further en-
hancing efficiency.
U-138
A new series of control ICs has been devel-
oped specifically for the zero voltage switching
techniques with a list of features to facilitate
lossless switching transitions with complete
fault protection. The multitude of functions and
ease of programmability greatly simplify the
interface to this new generation of power
conversion techniques; those developed in
response to the demands for increased power
density and efficiency.
Fig. 32 -- Zero Voltage Switched Half-Bridge Converter
3-351