Novel Current-Fed Boundary-Mode Parallel-Resonant Push-Pull Converter

Nanopartículas de magnetita dopadas com zinco para fins teranósticos: magnetoacustografia e hipertermia magnética

“…Mazzilli circuit is a derivative of the cross-coupled oscillator and Royer oscillator [215]. To overcome the aforementioned drawbacks, the authors in [215,216] proposed two different gate drives for cross-coupled oscillator circuits to be used in high voltage converters.…”

“…The circuit of the system proposed in the present paper is a modification of a Mazzilli crosscoupled oscillator similarly as described in [215,216] . In this setup, the resonant frequency of the tank circuit (regardless of its components) is directly followed, therefore, it can be used with different induction coil formats.…”

“…Since diodes are connected to the opposite drain, any small capacitance of this component can have a significant effect on the gate voltage, resulting in applying insufficient gate-source voltage during high-frequency operation. This can increase the switching losses to such a high level which destroys the switches [216]. Moreover, the gate drive power is supplied through a resistance (R1 and R2) and the gate capacitance is not negligible, resulting in an RC time constant and inhibiting fast switching at high frequencies [215].…”

High Voltage Resonant Self-Tracking Current-Fed Converter

“…The Mazzilli converter was ideated by Vladimiro Mazzilli, and is a derivative of the L-C MOS oscillator and Royer Oscillator [23]. As such, it selfoscillates at the L-C oscillation frequency.…”

“…Thus, if L mag is 4 times L ind , the majority of the resonant inductance comes from L4, indicating the majority of the resonant current will flow through L4. If the primary inductance of each individual coil is equal to L4, the change in resonant frequency by adding the transformer to the circuit will be an increase of 11.8% to the operating frequency [23].…”