A Review on VHF Power Electronics Converter and Design Issues

A high output power density VHF converter has
become important in recent years. This output power density of
the converter is experiencing an adverse effect resulted from the
applied switching frequency. In addition, the frequency which is
higher than 20 MHz will no longer be applicable on the discreet
SMT technology hence lowers the output power density. Thus,
further improvement on circuit analysis and PCB layout design
could help in the improvement of higher operating frequency.
Even though it is suggested that power density and efficiency do
not necessarily require a high switching frequency to achieve,
the resonant network topology still has to be considered. In spite
of issues resulted from the VHF converter design, power device
selection and PCB layout circuit design are among the critical
factors to consider, to maximize the capability of
frequency-output power product in the VHF converter
applications.