| Summary: | 博士 === 國立臺北科技大學 === 電機工程系博士班 === 101 === In this dissertation, novel high step-up converters are presented. By using different pulse-width-modulation (PWM) control strategies and by changing the connection position of the anode of the diode, three different voltage conversion ratios can be obtained. These converters are constructed mainly based on bootstrap capacitors and boost inductors. Above all, two boost inductors with different values, connected in series, can still make the proposed converters work appropriately. Furthermore, although there are three switches in each converter, only one half-bridge gate driver and one low-side gate driver are needed, but no isolated gate driver would be needed. After the basic operating principles and mathematical deductions of the proposed converters are described, some experimental results are provided to verify the effectiveness of these converters.
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