| Summary: | 碩士 === 國立臺北科技大學 === 電機工程系電力電子產業碩士專班 === 108 === The purpose of this thesis is to design and implement a single-stage full-bridge converter. The system uses a full-bridge converter as the main architecture, combined with a dual power factor correction inductor and interleaved technology, so that the converter has excellent power factor correction capability. In addition, all switches have zero voltage conduction characteristics and the reverse recovery current of the power diode can be improved. Therefore, the switching losses and reverse recovery losses can be reduced, that is system efficiency can be higher. This thesis uses voltage loop control for output stable regulation also can be achieved.
In this thesis, the microcontroller TMS320D28035 produced by Texas Instruments is used as the control core to realize the designed controller and voltage loop control method to verify the correctness and feasibility of the implemented single-stage full-bridge converter and the associated design analysis. The experimental results include input voltage AC 110V,output voltage DC48V and maximum output power500W. The experimental results show that the harmonic current meets IEC61000-3-2 Class D standard, the power factor can reach 0.98 under full load condition, and maximum efficiency is 91.24%.
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