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专利名称：Frequency limitation method with time
hysteresis used in quasi-resonant control
发明人：Junming Zhang,Yuanchang Ren,Jin
Hu,Huanyu Lu,Yang Shi
申请号：US12817002申请日：20100616公开号：US08238123B2公开日：20120807
专利附图：
摘要：A frequency limitation method used in quasi-resonant control of a switchingregulator is disclosed. The switching frequency is limited through setting a minimum time
limit, such as a minimum switching period or a minimum OFF time. The minimum time limitmay be a first time limit or a second time limit. The minimum time limit is changed intoanother value if the minimum voltage point approaches the minimum time limit point, soas to eliminate the audible noise.
申请人：Junming Zhang,Yuanchang Ren,Jin Hu,Huanyu Lu,Yang Shi
地址：Hangzhou CN,Hangzhou CN,Hangzhou CN,Beijing CN,Hangzhou CN
国籍：CN,CN,CN,CN,CN
代理机构：Perkins Coie LLP
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