发明名称 |
Boosting and step-down switching regulator controlling circuit and boosting and step-down switching regulator for use in the same |
摘要 |
A boosting and step-down switching regulator includes one error amplifying circuit, and an output of the error amplifying circuit is compared with a triangular wave for boosting and a triangular wave for step-down different in voltage level from each other but synchronous with, each other in comparison circuits, respectively, to switch the boosting operation and the step-down operation over to each other. Thus, the boosting operation and the step-down operation can be readily switched over to each other irrespective of an input voltage and an output voltage.
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申请公布号 |
US2003052654(A1) |
申请公布日期 |
2003.03.20 |
申请号 |
US20020213262 |
申请日期 |
2002.08.06 |
申请人 |
KANAKUBO YOSHIHIDE;OKA TOMOHIRO;NAKA TAKESHI |
发明人 |
KANAKUBO YOSHIHIDE;OKA TOMOHIRO;NAKA TAKESHI |
分类号 |
H02M3/155;H02M3/158;(IPC1-7):G05F1/10 |
主分类号 |
H02M3/155 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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