The traveling-wave piezoelectric transformer (TWPT) is a new topology of piezoelectric transformer providing a multi-phases system of voltages at its output. The inherent galvanic insulation of piezoelectric transformers makes them particularly suitable for insulated gate-drive power supply applications. In this paper, we use the TWPT with several phases to generate the different insulated voltage rails required for the driving of a multi-level inverter leg. The insulated gate driver power supply including the TWPT is presented and experiments are performed to drive the power MOSFETs of a half-bridge. The TWPT and the circuit associated generates a bipolar voltage level +15 V/-15 V up to 500 kHz switching frequency.
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机译：行波压电变压器（TWPT）是压电变压器的一种新拓扑，在其输出端提供电压的多相系统。压电变压器固有的电绝缘特性使其特别适用于绝缘的栅极驱动电源应用。在本文中，我们使用具有多个相位的TWPT来生成驱动多电平逆变器支路所需的不同绝缘电压轨。介绍了包括TWPT的绝缘栅极驱动器电源，并进行了实验来驱动半桥的功率MOSFET。 TWPT和相关的电路会产生一个双极性电压电平+15 V / -15 V，最高开关频率为500 kHz。
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