A Dickson-type power converter with bootstrapped gate transfer switches
A Dickson-type power converter with bootstrapped gate transfer switches
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具有自举栅极转换开关的 Dickson 型功率转换器
DOI：
10.1541/ieejeiss.124.1416
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发表时间：
2004
期刊：
影响因子：
--
通讯作者：
F. Ueno
中科院分区：
文献类型：
--
作者：
K. Eguchi;Hongbing Zhu;T. Tabata;F. Ueno
在本文中，提出了一种具有自举栅极传输开关的迪克森型功率转换器。该电路的设计是在传统的Dickson型电路的基础上增加极性交换电路和N(N=2、3、...)个电源开关。这些附加电路使转换器不仅能够提供 DC-DC 输出，而且能够提供 DC-AC 输出。在直流-交流转换过程中，该电路可以利用脉冲幅度调制（PAM）方法产生各种交流输出。此外，通过采用新颖的自举电路来为转换器中的功率开关供电，可以实现高效率。通过由二极管构成的最大电路，前级的电压被充电到自举电路中的电容器。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器来降低功率开关的导通电阻。该电路的 SPICE 仿真显示了以下结果： 1. 当输出负载 Ro = 500 /spl Omega/ 时，dc-dc 转换效率超过 90%； 2. 可以生成各种类型的交流输出。
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.