基於耦合電感具降低輸入電流漣波之高增益雙向轉換器;High-Gain Bidirectional Converter Based on Coupled Inductor with Reduced Input Current Ripple

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Title:	基於耦合電感具降低輸入電流漣波之高增益雙向轉換器;High-Gain Bidirectional Converter Based on Coupled Inductor with Reduced Input Current Ripple
Authors:	邱宇正;Chiu, Yu-Cheng
Contributors:	電機工程學系
Keywords:	充電電荷泵浦;倍壓器;直流-直流轉換器;切換式電容;耦合電感;Charge Pump;Voltage Multiplier;DC-DC converter;Switched-capacitor;Coupled-inductor
Date:	2021-08-12
Issue Date:	2021-12-07 13:06:46 (UTC+8)
Publisher:	國立中央大學
Abstract:	本論文研製一基於耦合電感的雙向高增益切換式電容(Switched Capacitor)轉換器，相較於傳統升壓電路有較高的電壓增益，並兼具降低輸入電流漣波的功能，另外，本文提出的轉換器在主開關與同步整流開關上皆具有低電壓應力。此電路具有兩個升壓級，一是前級的耦合電感，利用第二繞阻匝數比，達到變壓器般的升壓效果;二是後級的切換式電容電路，可以透過增加階數放大電壓增益，如此一來，利用結合前、後級電路，即便不使用過大的工作週期(duty cycle)，也可達到目標所需之高電壓輸出。本論文將在第三章利用公式推導予以佐證電壓增益、元件應力與降低輸入漣波之能力，在第四章以模擬與實作硬體電路驗證理論分析，並且在最後研擬未來方向。 ;This thesis develops a bidirectional high-gain switched capacitor converter based on coupled inductors, which has higher voltage gain than traditional boost converter and has the function of reducing input current ripple. In addition, this proposed converter has low voltage stress on main switches and synchronous rectifier switches. This circuit has two step-up stages. One is the coupled inductor of the previous stage, which uses the second winding turns ratio to achieve a transformer-like boost effect; the other is the switching capacitor circuit of the latter stage, which can be amplified by increasing the order. In this way, by combining the pre- and post-stage circuits, even if an excessive duty cycle is not used, the high voltage output required by the target can be easily achieved. This thesis uses formula derivation in the third chapter to support the voltage gain, component stress and the ability to reduce input ripple. In the fourth chapter, the theoretical analysis is verified by simulation and implementation of hardware circuits, and the future direction will be studied at the end.
Appears in Collections:	[Graduate Institute of Electrical Engineering] Electronic Thesis & Dissertation

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