发明名称 |
SYNCHRONOUS RECTIFICATION SWITCHING REGULATOR, CONTROL CIRCUIT THEREOF, AND METHOD OF CONTROLLING THE OPERATION THEREOF |
摘要 |
A synchronous-rectification-type switching regulator is disclosed that includes a first switching element; an inductor charged with a voltage input to an input terminal of the switching regulator by the switching of the first switching element; a second switching element for synchronous rectification performing switching so as to discharge the inductor; a control circuit part controlling the switching of the first switching element so that an output voltage from an output terminal of the switching regulator is a predetermined constant voltage, and to cause the second switching element to perform the switching inversely to the first switching element; and a reverse current prevention circuit part interrupting a current that flows into the second switching element by cutting off the connection of the second switching element so as to prevent generation of a reverse current that flows in the direction of the second switching element from the output terminal. |
申请公布号 |
KR20070091203(A) |
申请公布日期 |
2007.09.07 |
申请号 |
KR20077016551 |
申请日期 |
2006.11.09 |
申请人 |
RICOH CO., LTD. |
发明人 |
KOJIMA SHINICHI;UENO TOHRU |
分类号 |
H02M3/28;H02M1/088 |
主分类号 |
H02M3/28 |
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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