发明申请
- 专利标题： LOW POWER CURRENT COMPARATOR FOR SWITCHED MODE REGULATOR
- 专利标题（中）： 用于开关模式调节器的低功耗电流比较器
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申请号： US13755575申请日： 2013-01-31
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公开(公告)号： US20130200872A1公开(公告)日： 2013-08-08
- 发明人: Brian W. Friend , Kyehyung Lee
- 申请人： Brian W. Friend , Kyehyung Lee
- 主分类号： G05F1/10
- IPC分类号： G05F1/10
摘要：
A current comparator comprising a first NMOS transistor having a drain coupled to VDD, a source and a gate. A first PMOS transistor having a source coupled to the source of the first NMOS transistor to form an input, a drain coupled to VSS and a gate coupled to the gate of the first NMOS transistor. A second NMOS transistor having a drain coupled to VDD, a source and a gate coupled to the input. A first bias current source having an input coupled to the source of the second NMOS transistor and an output. A second bias current source having an input coupled to the drain of the first NMOS transistor and an output coupled to the gate of the first NMOS transistor. A third NMOS transistor having a drain coupled to the gate of the first NMOS transistor to form an output, a source and a gate.
公开/授权文献
- US09024603B2 Low power current comparator for switched mode regulator 公开/授权日：2015-05-05
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IPC分类:
