A Novel High Controllable Voltage Gain Push-Pull Topology for Wireless Power Transfer System
AbstractWireless Power Transfer (WPT) is commonly used to transmit power from a transmitting coil to various movable power devices. In the WPT system, due to a resonant tank inherent characteristic, the system cannot achieve a high output voltage gain. This paper proposes a novel current-fed push–pull circuit to realize high output voltage gain by adding a bi-directional switch between the resonant network and inverter. To obtain a high voltage gain, this paper proposes energy storage and energy injection mode to realize an energy boost function. A duty cycle control method for mode switching is also proposed. The proposed method allows the converter to operate with a variable voltage gain over a wide range with high efficiency. Experimental validation shows that the system gain of a proposed circuit can achieve a variable gain from 2 to 7 of which the converter can be two times higher than the classical system with the same condition. View Full-Text
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Duan, Q.; Li, Y.; Dai, X.; Zou, T. A Novel High Controllable Voltage Gain Push-Pull Topology for Wireless Power Transfer System. Energies 2017, 10, 474.
Duan Q, Li Y, Dai X, Zou T. A Novel High Controllable Voltage Gain Push-Pull Topology for Wireless Power Transfer System. Energies. 2017; 10(4):474.Chicago/Turabian Style
Duan, Qichang; Li, Yanling; Dai, Xin; Zou, Tao. 2017. "A Novel High Controllable Voltage Gain Push-Pull Topology for Wireless Power Transfer System." Energies 10, no. 4: 474.
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