Design and Implementation of a Digital-Controlled Bridgeless Power Factor Corrector

• Main Authors: Jian-Long Liu, 劉建隆
• Other Authors: Sheng-Yuan Ou
• Format: Others
• Language: zh-TW
• Published: 2016
• Online Access: http://ndltd.ncl.edu.tw/handle/ejc4sx

碩士 === 國立臺北科技大學 === 電機工程系所 === 104 === The purpose of this thesis is to design and implement a digital-controlled bridgeless power factor corrector, in which the two boost converters arranged at power source terminal are controlled by a DSP using average current control method to reach two objectives including no bridge rectifier at source terminal and power factor correction. Compared to the traditional bridge boost PFC, the implemented bridgeless PFC has higher efficiency. In this thesis, DSP TMS320F28035 produced by Texas Instrument is utilized to realize a current and voltage compensator to allow source current waveform can follow source voltage waveform and meet the specifications about power factor. In the implemented bridgeless PFC, the source voltage range can vary from AC 110V to 220V, the output voltage is DC 400V and the maximum output power is 800W. With the experimental results, the power factor is higher than 96 in full load condition, the efficiency always is higher than 95% and IEC61000-3-2 Class A is connected.