Polyphase boost converter for automotive and UPF applications

摘要: Boost DC-to-DC converters have very good source interface properties. The input inductor makes the current smooth and hence these provide EMI performance. On account of this property, boost converter is also preferred for off-line UPF rectifiers. One issues concern in large size storage capacitor on DC link. suffers from disadvantage discontinuous injected to load. therefore large. Further, ripple as much load current; ESR specification tank quite demanding. This specially so emerging application areas automotive power conversion, where voltage low (typically 12 V) (4 5) are desired. In rectifier applications, varies zero maximum value twice every cycle AC voltage. duty full range one. rated current. wide operating point variations, design circuit well closed loop controller a demanding task. paper suggests polyphase operation overcome disadvantages rectifiers small signal analysis N parallel an equivalent second order system such converters, which not been considered previous works