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This paper presents a model predictive current control method for a class E resonant inverter for piezoelectric ceramic transducer (PCTs) applications. The capacitor voltage is used to predict a future value of the load current of the PCT. The class E resonant inverter is operated at the suboptimal mode to minimize switching losses of the power switch. Power switches operate under zero voltage switching...
Piezoelectric ceramic transducers (PCTs) are used as the vibration sources for the ultrasonic cleaner. However, PCTs have a narrow operational region and sensitive to load variation. This paper presents the operational region of a class E resonant inverter for extending the PCT operational range. The class E resonant inverter is operated at the suboptimum mode to minimize switching losses of the power...
This paper presents a high efficiency LCCL series resonant inverter for ultrasonic dispersion system with resonant frequency tracking and asymmetrical voltage cancellation control. With the proposed control, the operating frequency of the inverter is automatically adjusted to track the resonant frequency under load parameter variation due to surrounding condition. The zero-voltage switching (ZVS)...
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