A Dickson-type power converter with bootstrapped gate transfer switches

The 25th International Telecommunications Energy Conference, 2003. INTELEC '03. Pub Date : 2004-07-01 DOI:10.1541/IEEJEISS.124.1416

K. Eguchi, Hongbing Zhu, T. Tabata, F. Ueno

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引用次数: 7

Abstract

In this paper, a Dickson-type power converter with bootstrapped gate transfer switches is proposed. The circuit is designed by adding a polarity exchange circuit and N (N = 2, 3, ...) power-switches to the conventional Dickson-type circuit. These additional circuits enable the converter to provide not only a dc-dc output but a dc-ac output. In the process of dc-ac conversion, the circuit can generate various ac outputs by exploiting pulse amplitude modulation (PAM) method. Furthermore, high efficiency can be achieved by adopting novel bootstrap circuits to power-switches in the converter. Via maximum circuits constructed with diodes, the voltage of forward stage is charged to a capacitor in the bootstrap circuit. By connecting the charged-capacitor between the gate terminals of power-switches and the output terminal of the maximum circuit, the bootstrap circuits reduce the on-resistance of the power-switches. The SPICE simulations for the proposed circuit show the following results: 1. the efficiency of dc-dc conversion is more than 90% when the output load Ro = 500 /spl Omega/ and 2. various types of ac outputs can be generated.

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带自举门转换开关的迪克逊型功率变换器

本文提出了一种带自举门转换开关的dickson型功率变换器。该电路是通过在传统的dickson型电路中增加一个极性交换电路和N (N = 2,3，…)个功率开关来设计的。这些附加电路使变换器不仅能提供dc-dc输出，还能提供dc-ac输出。在直流-交流转换过程中，该电路利用脉冲调幅(PAM)方法产生各种交流输出。此外，在变换器的功率开关上采用新颖的自举电路可以提高效率。通过用二极管构成的最大电路，正向级的电压被充电到自举电路中的电容器上。自举电路通过在功率开关的栅极端子和最大电路的输出端子之间连接充电电容，降低了功率开关的导通电阻。对所提出的电路进行SPICE仿真，得到以下结果:当输出负载Ro = 500 /spl ω /和2时，dc-dc转换效率大于90%。可以产生各种类型的交流输出。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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The 25th International Telecommunications Energy Conference, 2003. INTELEC '03.

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