51. Voltage-Source Parallel Resonant Class E Inverter.
- Author
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Shigeno, Akinobu and Koizumi, Hirotaka
- Subjects
- *
ZERO voltage switching , *WIRELESS power transmission , *ELECTRIC inverters , *SWITCHING circuits , *CAPACITORS , *RESONANT inverters - Abstract
This paper proposes a voltage-source parallel resonant Class E inverter. The proposed circuit has a shunt capacitor including parasitic capacitance of a switching device and achieves zero-voltage switching and zero-voltage derivative switching at turning-on like a classical Class E inverter. Therefore, high power conversion efficiency is achieved under high operating frequency. Unlike the other Class E inverters, the proposed circuit has no choke inductor or dc blocking capacitor. Moreover, it has a parallel resonant tank unlike the classical Class E inverter. Thus, a circuit protection is not required in a wireless power transfer system. Circuit analysis, circuit simulations, and circuit experiments were carried out. The experimental circuit performed the desired operation and the power conversion efficiency was 93.2% with the output power 4.76 W at the operating frequency 1 MHz. [ABSTRACT FROM AUTHOR]
- Published
- 2019
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