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发明名称
返驰式电源供应器及其控制方法
摘要
一种返驰式电源供应器及其控制方法,能在变压器每次转态时正确控制开关元件的截止状态。其系由变压器、初级切换电路及次级切换电路组成。初级切换电路连接于变压器的初级侧,次级切换电路连接于变压器的次级侧。而次级切换器系由控制电路及开关元件组成。其中控制电路系维持开关元件在固定电压,并使该开关元件的阻值能随变压器输出的电流呈反比变化者。因此当变压器次级测输出的电流以倒三角波形变化时,开关元件的阻值将于电流为零时趋近于无限大,使开关元件自动进入截止,让电源供应器得以顺利工作。
申请公布号
TW200419602
申请公布日期
2004.10.01
申请号
TW092106682
申请日期
2003.03.25
申请人
尼克森微电子股份有限公司
发明人
杨惠强
分类号
H01F38/42
主分类号
H01F38/42
代理机构
代理人
谢宗颖;王云平
主权项
地址
台北县汐止市康宁街一六九巷二十三号十三楼之二
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