A full bridge isolated version of
the parallel
resonant converter is given in
Fig. 5.1. For
this
discussion, a
1:1 turns
ratio is
assumed.
The converter
differs from
the
series resonant
converter because it is the tank capacitor
voltage,
rather than the tank inductor
current, which is
rectified and filtered to produce the dc load
voltage. A two-pole L-C low
pass
filter (L
F
and C
F
)
performs this filter function. Hence, we have