Куда же Вы пропали,
vax951 
?
вот ссылка на вариант с похожей топологией
http://dpcl.kaist.ac.kr/BBS/Include/BBS_Download.php?file=inter_jour/upload/upB59Wnk&_file=Analysis%20and%20Design%20of%20Phase-Shifted%20Dual%20H-Bridge%20Converter%20with%20a%20Wide%20ZVS%20Range%20and%20Reduced%20Output%20Filter.PDF&no=2182&PHPSESSID=0b7598fc7ac1d6aaf46e8e0030a27fa3Топология свободна от недостатков классического фазника !
The proposed converter has the following advantages:
1) All the switches is turned on with ZVS under a wide load
variation without any additional large resonant inductors
or circuits, while the conduction loss caused by the
assistant current source extending the ZVS range is
minimized due to its reduced conduction path;
2) The circulating current in existing PSFB converters does
not appear in the proposed converter, which contributes to
the improvement in the conduction loss;
3) The proposed converter has no problems related to an
increase of duty-cycle loss. In addition, the conversion
ratio is higher than that of existing PSFB converters.
These allow that the turns-ratio of the transformers is
designed to be better than that of the counterparts. Thus,
the voltage stress across the diode rectifier and the load
current reflected to the primary side can be reduced, which
leads to the improvement in the conduction loss;
4) In the input voltage waveform of the output LC filter, the
input voltage source always exists. Thus, the output
inductor’s size can be significantly reduced;
5) A low profile design becomes possible due to the use of two
small-sized transformers with low height instead of a
large-sized transformer with high height
не разобрался - чем занимается в Вашей "патентной картинке" индуктивность за номером 13 между плечами ? Так ли она важна ?
до кучи -
http://www.findpatent.ru/patent/242/2421869.html