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1. 发明授权

US08274269B2 Switching circuit and small-size high-efficiency DC-DC converter for portable devices including the same 失效
标题翻译：用于便携式设备的开关电路和小型高效率DC-DC转换器
公开(公告)号：US08274269B2
公开(公告)日：2012-09-25
申请号：US12487596
申请日：2009-06-18
申请人： Kwi Dong Kim , Jong Kee Kwon , Jong Dae Kim , Yong Seo Koo
发明人： Kwi Dong Kim , Jong Kee Kwon , Jong Dae Kim , Yong Seo Koo
IPC分类号： G05F1/00
CPC分类号： H02M1/08 , H02M2001/0032 , Y02B70/16
摘要： Provided are a switching circuit and a small-size high-efficiency direct current-to-direct current (DC-DC) converter for portable devices including the same. Using dynamic threshold-complementary metal oxide semiconductor (DT-CMOS) transistors having dynamic threshold voltages as a switching device, the switching circuit maintains a low threshold voltage in a normal mode to improve current drivability while reducing conduction loss, and maintains a high threshold voltage in a standby mode to minimize power consumption. When the switching circuit is employed in a DC-DC converter, power conversion efficiency can be improved by reducing conduction loss in the normal mode, and power consumption can be minimized in the standby mode. Consequently, the DC-DC converter can maximize a use time of a battery of a portable device and can be useful in power supplies of portable devices that are gradually being miniaturized.
摘要翻译：提供了一种用于包括其的便携式设备的开关电路和小尺寸高效率直流 - 直流（DC-DC）转换器。使用具有动态阈值电压的动态阈值互补金属氧化物半导体（DT-CMOS）晶体管作为开关器件，开关电路在正常模式下维持低阈值电压，从而改善电流驱动能力，同时降低导通损耗，并保持高阈值电压处于待机模式以最小化功耗。当在DC-DC转换器中采用开关电路时，可以通过降低正常模式下的导通损耗来提高功率转换效率，并且在待机模式下功耗可以最小化。因此，DC-DC转换器可以使便携式设备的电池的使用时间最大化，并且可以用于逐渐小型化的便携式设备的电源。

2. 发明申请

US20100123445A1 SWITCHING CIRCUIT AND SMALL-SIZE HIGH-EFFICIENCY DC-DC CONVERTER FOR PORTABLE DEVICES INCLUDING THE SAME 失效
标题翻译：用于包括其的便携式设备的切换电路和小型高效DC-DC转换器
公开(公告)号：US20100123445A1
公开(公告)日：2010-05-20
申请号：US12487596
申请日：2009-06-18
申请人： Kwi Dong KIM , Jong Kee Kwon , Jong Dae Kim , Yong Seo Koo
发明人： Kwi Dong KIM , Jong Kee Kwon , Jong Dae Kim , Yong Seo Koo
IPC分类号： G05F1/618
CPC分类号： H02M1/08 , H02M2001/0032 , Y02B70/16
摘要： Provided are a switching circuit and a small-size high-efficiency direct current-to-direct current (DC-DC) converter for portable devices including the same. Using dynamic threshold-complementary metal oxide semiconductor (DT-CMOS) transistors having dynamic threshold voltages as a switching device, the switching circuit maintains a low threshold voltage in a normal mode to improve current drivability while reducing conduction loss, and maintains a high threshold voltage in a standby mode to minimize power consumption. When the switching circuit is employed in a DC-DC converter, power conversion efficiency can be improved by reducing conduction loss in the normal mode, and power consumption can be minimized in the standby mode. Consequently, the DC-DC converter can maximize a use time of a battery of a portable device and can be useful in power supplies of portable devices that are gradually being miniaturized.
摘要翻译：提供了一种用于包括其的便携式设备的开关电路和小尺寸高效率直流 - 直流（DC-DC）转换器。使用具有动态阈值电压的动态阈值互补金属氧化物半导体（DT-CMOS）晶体管作为开关器件，开关电路在正常模式下维持低阈值电压，从而改善电流驱动能力，同时降低导通损耗，并保持高阈值电压处于待机模式以最小化功耗。当在DC-DC转换器中采用开关电路时，可以通过降低正常模式下的导通损耗来提高功率转换效率，并且在待机模式下功耗可以最小化。因此，DC-DC转换器可以使便携式设备的电池的使用时间最大化，并且可以用于逐渐小型化的便携式设备的电源。

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