电子设计工程
電子設計工程
전자설계공정
ELECTRONIC DESIGN ENGINEERING
2011年
21期
136-138,145
,共4页
罗四海%娄本超%唐君%李彦
囉四海%婁本超%唐君%李彥
라사해%루본초%당군%리언
MOSFET%开通损耗%开关损耗%修正系数
MOSFET%開通損耗%開關損耗%脩正繫數
MOSFET%개통손모%개관손모%수정계수
MOSFET%conduction loss%switching loss%coefficient
根据MOSFET的简化模型，分析了导通损耗和开关损耗，通过典型的修正系数，修正了简化模型的极闯电容。通过开关磁铁电源的实例计算了工况下MOSFET的功率损耗，计算结果表明该电源中工况下的MOSFET功率损耗比较小，可以长时间可靠稳定的工作。
根據MOSFET的簡化模型，分析瞭導通損耗和開關損耗，通過典型的脩正繫數，脩正瞭簡化模型的極闖電容。通過開關磁鐵電源的實例計算瞭工況下MOSFET的功率損耗，計算結果錶明該電源中工況下的MOSFET功率損耗比較小，可以長時間可靠穩定的工作。
근거MOSFET적간화모형，분석료도통손모화개관손모，통과전형적수정계수，수정료간화모형적겁틈전용。통과개관자철전원적실례계산료공황하MOSFET적공솔손모，계산결과표명해전원중공황하적MOSFET공솔손모비교소，가이장시간가고은정적공작。
The power losses of the conduction and conversion process of the power MOSFET were analyzed in detail based on the simplified model.Modification of the capacitance of the simplified model was accomplished by typical coefficient. These power losses were calculated by sample analysis of switching power supply, the results indicated that the operating-conditioned power supply could be operated stably for a long time was attributable to the low power losses.
