| Summary: | 碩士 === 國立虎尾科技大學 === 電機工程系碩士班 === 106 === Electric Vehicles is more and more popular in nowadays so that Lead-Acid battery, too. Therefore, the steady voltage, high efficiency, high power and humanization function is necessary for the Electric Vehicle Battery Charger. This paper proposes the Electric Vehicle Battery Charger design of two-stage architectures. The first stage is based on the boost converter. The boost converter achieves Power Factor Correction in the Continuous Conduction Mode by using Average Current Method. It makes stable and good efficiency for Electric Vehicle Battery Charger. The Second stage is based on the Flyback converter. It can convert high efficiency, and provides DC output with little loss. The Flyback converter designs 100 watts power, and charges Battery. Taking into account security protection and humanization function. Use the Micro Controller Unit to control the Electric Vehicles Battery Charger, it has over voltage protection, over current protection, low voltage protection, low current protection, temperature protection, and Liquid Crystal Display shows the battery’s State of Charge. On the whole, the circuit is cheaper, the security protection is complete, the battery can be charge more full. It is a product of commercial value, and is suitable for AC 110V and 220V power supply.
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