Design and Implementation of a PWM Current-Mode Controller for Boost Converters

• Main Authors: Yu-ChenChang, 張祐誠
• Other Authors: Jiann-Fuh Chen
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/83394399496409802762

碩士 === 國立成功大學 === 電機工程學系 === 104 === In this thesis, a pulse-width modulation (PWM) current mode controller is designed and implemented. In order to increase the flexibility of usage and to cover a wide range of design specifications, conventional power management ICs in the market do not include a compensation circuit. The proposed controller is comprised of a compensation circuit for the converter which has an input voltage of 3.3 V, an output voltage of 5 V and a maximum power of 10 W. For the applicability and convenience of a solar-based converter module, the proposed controller IC can minimize the PCB area and the number of components outside the chip. Compared to the voltage mode, the current mode control has the advantages of better transient response, easy compensation, etc. The total chip area is 0.812×0.825 mm2. The maximum efficiency is 86% at an output voltage of 5 V when the load current is in a range from 0.75 A to 2 A. Finally, this chip is fabricated with the TSMC SMC 0.18 µm RF CMOS 1P6M 1.8/3.3 V process.