首页>
外国专利>
Synchronous rectification controller and isolated synchronous rectification type dc/dc converter
Synchronous rectification controller and isolated synchronous rectification type dc/dc converter
展开▼
机译:同步整流控制器和隔离同步整流型dc/dc变换器
展开▼
页面导航
摘要
著录项
相似文献
摘要
A synchronous rectification controller that controls driving a synchronous rectification transistor arranged on secondary side, includes: a gate terminal being electrically connectable to a gate of the synchronous rectification transistor; a drain terminal being electrically connectable to a drain of the synchronous rectification transistor via a first resistor; a first comparator comparing a drain terminal voltage generated at the drain terminal with negative first threshold voltage; a second comparator comparing the drain terminal voltage with negative second threshold voltage higher than the first threshold voltage; and a driver performing on/off control of the synchronous rectification transistor based on result of the comparison by the first comparator and result of the comparison by the second comparator, wherein when the synchronous rectification transistor is turned on, voltage is added to the drain terminal voltage by current flowing through the first resistor according to a second resistor.
展开▼