Principle and Analysis of Operation of
LCLLC Resonant Boost
Converter
Main Circuit Topology & Equivalent
Model of the LCLLC
Circuit
The study utilizes an LCLC resonant tank to step up the AC waveform
voltage with the goal of increasing the effective voltage for tumor
treatment. To achieve further voltage multiplication, the LCLC resonant
tank is modified by adding a 1:1 transformer, referred to as LCLLC in
this study. Fig. 1a illustrates the proposed DC/AC inverter with the
LCLLC resonant boost tank, which primarily consists of a 3.7 V DC
battery power supply (Vin ), H-bridge switches
(S1 to S4 ) and the energy
storage capacitors Cs . The voltage,Vs , from the H-bridge passes through the LCLLC
resonant tank to achieve high voltage gain.