Design and Implementation of High Power Factor Ultrasonic Cleaner Driving Circuit

• Main Authors: SHI,YAN-CHENG, 施彥丞
• Other Authors: CHANG,KUO-TSAI
• Format: Others
• Language: zh-TW
• Published: 2018
• Online Access: http://ndltd.ncl.edu.tw/handle/3trcdr

碩士 === 國立聯合大學 === 電機工程學系碩士班 === 106 === This paper aims to develop an ultrasonic cleaner drive circuits with power factor correction. The structure of circuits are composed of a dual forward converter with a power factor correction circuit which the output is DC voltage with a high-power factor, and a half-bridge converter generated a high-frequency AC to drive the ultrasonic cleaner . The 110V 60Hz AC voltage can be rectified to DC voltage by bridge rectifier and boosted by a power factor correction circuit to 310V DC voltage which can keep the input voltage and current in the same phase. After the power factor is corrected by the circuits, the dual forward converter can be used to complete the buck operation, then with the 310V DC voltage can be converted to a 45V DC voltage. I will obtain a stable DC voltage with power factor correction. The half-bridge converter is used for switching the DC voltage to a high-frequency AC voltage, which can drive the ultrasonic cleaners. The frequency of the switching frequency is adjusted according to the resonance frequency of the ultrasonic cleaners. Finally, explore the working principle of each circuit structure as well as measure and record circuit’s simulations and experimental results.