Improved quadratic boost converter using cross coupled-inductor

Yiyang Li, John Long Soon, S. Sathiakumar
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引用次数: 4

Abstract

Based on the concept of the conventional quadratic boost converter, an improved topology is presented in this paper. In this design, a coupled-inductor will be utilized to increase the voltage gain of the circuit. The most significant advantage of this converter design is that the circuit has a high step-up ratio with a very low voltage stress on the switch. Moreover, this circuit utilizes minimum additional component to improve the converter performances. The inductor selection of this converter design is to ensure working in continuous-current mode (CCM) for various load conditions. Detailed circuit operation principle and theoretical voltage conversion ratio is derived. Finally, converter prototype was built to verify that using different coupling ratio can achieve high step up voltage gain capability.
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采用交叉耦合电感的改进型二次升压变换器
在传统二次型升压变换器概念的基础上,提出了一种改进的拓扑结构。在这个设计中,将使用一个耦合电感来增加电路的电压增益。这种变换器设计最显著的优点是电路具有高升压比,开关上的电压应力非常低。此外,该电路利用最小的附加元件来提高变换器的性能。该变换器设计的电感选择是为了保证在各种负载条件下工作在连续电流模式下。推导了详细的电路工作原理和理论电压转换比。最后,建立了变换器样机,验证了采用不同的耦合比可以获得较高的升压增益能力。
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