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1. 发明申请

US20130328543A1 MINIATURIZE VOLTAGE-TRANSFORMING DEVICE 有权
标题翻译：微型电压变压器件
公开(公告)号：US20130328543A1
公开(公告)日：2013-12-12
申请号：US13567527
申请日：2012-08-06
申请人： Lien-Hsing CHEN , Li-Hao Liu , Cheng-Te Tsai
发明人： Lien-Hsing CHEN , Li-Hao Liu , Cheng-Te Tsai
IPC分类号： G05F3/04
CPC分类号： H02M7/003 , H01F5/00 , H01F27/292 , H01F27/402 , H01F2027/297 , H02M3/00 , H05K1/144 , H05K1/145 , H05K1/148 , H05K1/18 , H05K1/189 , H05K3/3405 , H05K3/3447 , H05K3/403 , H05K2201/042 , H05K2201/047 , H05K2201/09181 , H05K2201/1003
摘要： A miniaturized voltage-transforming device includes a first circuit board and a second circuit board parallel to and separated from each other by a predetermined distance so that there is no physical connection therebetween, and a transformer having a plurality of primary-side pins and a plurality of secondary-side pins, wherein the transformer is located beside the first circuit board and the second circuit board, and has its primary-side pins and secondary-side pins directly or indirectly connected to the first circuit board and the second circuit board physically, so that the transformer is electrically connected to the first circuit board and the second circuit board via the primary-side pins and the secondary-side pins.
摘要翻译：小型化电压转换装置包括第一电路板和彼此平行并分离预定距离的第二电路板，使得它们之间不存在物理连接，以及具有多个初级侧引脚和多个其中所述变压器位于所述第一电路板和所述第二电路板旁边，并且其初级侧引脚和次级侧引脚在物理上直接或间接地连接到第一电路板和第二电路板，使得变压器经由初级侧引脚和次级侧引脚电连接到第一电路板和第二电路板。

2. 发明申请

US20090135634A1 Synchronous rectifier drive circuit 审中-公开
标题翻译：同步整流驱动电路
公开(公告)号：US20090135634A1
公开(公告)日：2009-05-28
申请号：US12071954
申请日：2008-02-28
申请人： Lien-Hsing Chen , Li-Hao Liu
发明人： Lien-Hsing Chen , Li-Hao Liu
IPC分类号： H02M7/217
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A synchronous rectifier drive circuit includes a primary side and a secondary side. The primary side has a first coil winding, a first MOSFET, an auxiliary MOSFET, an auxiliary capacitor, and an input power source. The secondary side has a second coil winding, a DC voltage source, a second MOSFET, a third MOSFET, a fourth MOSFET, a fifth MOSFET, and an inductor. The gate of the second MOSFET is connected with the source of the fourth MOSFET. The gate of the third MOSFET is connected with the source of the fifth MOSFET. The inductor has two ends, one of which is connected with the drain of the third MOSFET. Accordingly, the synchronous rectifier drive circuit can lessen the variation of pulse wave of the drive voltage and refrain the surge voltage to protect the electronic elements.
摘要翻译：同步整流器驱动电路包括初级侧和次级侧。初级侧具有第一线圈绕组，第一MOSFET，辅助MOSFET，辅助电容器和输入电源。次级侧具有第二线圈绕组，DC电压源，第二MOSFET，第三MOSFET，第四MOSFET，第五MOSFET和电感器。第二个MOSFET的栅极与第四个MOSFET的源极连接。第三个MOSFET的栅极与第五个MOSFET的源极连接。电感器具有两端，其中一端与第三MOSFET的漏极连接。因此，同步整流器驱动电路可以减小驱动电压的脉冲波的变化，并且避免浪涌电压来保护电子元件。

3. 发明授权

US09148066B2 Miniaturize voltage-transforming device 有权
标题翻译：小型化电压转换装置
公开(公告)号：US09148066B2
公开(公告)日：2015-09-29
申请号：US13567527
申请日：2012-08-06
申请人： Lien-Hsing Chen , Li-Hao Liu , Cheng-Te Tsai
发明人： Lien-Hsing Chen , Li-Hao Liu , Cheng-Te Tsai
IPC分类号： H01F5/00 , H02M7/00 , H01F27/29 , H02M3/00 , H05K1/14 , H05K1/18 , H05K3/34 , H01F27/40 , H05K3/40
CPC分类号： H02M7/003 , H01F5/00 , H01F27/292 , H01F27/402 , H01F2027/297 , H02M3/00 , H05K1/144 , H05K1/145 , H05K1/148 , H05K1/18 , H05K1/189 , H05K3/3405 , H05K3/3447 , H05K3/403 , H05K2201/042 , H05K2201/047 , H05K2201/09181 , H05K2201/1003
摘要： A miniaturized voltage-transforming device includes a first circuit board and a second circuit board parallel to and separated from each other by a predetermined distance so that there is no physical connection therebetween, and a transformer having a plurality of primary-side pins and a plurality of secondary-side pins, wherein the transformer is located beside the first circuit board and the second circuit board, and has its primary-side pins and secondary-side pins directly or indirectly connected to the first circuit board and the second circuit board physically, so that the transformer is electrically connected to the first circuit board and the second circuit board via the primary-side pins and the secondary-side pins.
摘要翻译：小型化电压转换装置包括第一电路板和彼此平行并分离预定距离的第二电路板，使得它们之间不存在物理连接，以及具有多个初级侧引脚和多个其中所述变压器位于所述第一电路板和所述第二电路板旁边，并且其初级侧引脚和次级侧引脚在物理上直接或间接地连接到第一电路板和第二电路板，使得变压器经由初级侧引脚和次级侧引脚电连接到第一电路板和第二电路板。

4. 发明申请

US20120236603A1 POWER CONVERTER HAVING HIGH EFFICIENCY AT LOW LOAD 有权
标题翻译：功率转换器在低负载下具有高效率
公开(公告)号：US20120236603A1
公开(公告)日：2012-09-20
申请号：US13104803
申请日：2011-05-10
申请人： Lien-Hsing CHEN , Li-Hao LIU
发明人： Lien-Hsing CHEN , Li-Hao LIU
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M2001/0032 , Y02B70/1475 , Y02B70/16
摘要： A power converter includes a DC power source, a transformer having a first winding, a first MOSET and a PWM controller at the primary side and a second winding, a drive control unit, a current detection control unit, a comparator and a second MOSFET at the secondary side. The comparator has its input end electrically connected to the current detection control unit and its output end electrically connected to the drive control unit, which is electrically connected to the second MOSFET for synchronous rectification. The second MOSFET is electrically connected to one end of the second winding, having a body diode built therein. The second winding and the second MOSFET constitute a combination circuit electrically connected to a load that has a capacitor electrically connected thereto in a parallel manner. By means of the aforesaid arrangement, conduction loss at a low load is minimized, thereby improving the efficiency at a low load.
摘要翻译：电力转换器包括直流电源，具有第一绕组的变压器，初级侧的第一MOSET和PWM控制器以及第二绕组，驱动控制单元，电流检测控制单元，比较器和第二MOSFET，二次侧。比较器的输入端电连接到电流检测控制单元，其输出端电连接到驱动控制单元，驱动控制单元电连接到用于同步整流的第二MOSFET。第二MOSFET电连接到第二绕组的一端，其中内置有体二极管。第二绕组和第二MOSFET构成电连接到具有与之并联的电容器的负载的组合电路。通过上述布置，低负载下的导通损耗最小化，从而提高了低负载时的效率。

5. 发明申请

US20110044075A1 POWER CONVERTER CAPABLE OF LOWERING POWER WASTAGE ON STANDBY 有权
标题翻译：功率转换器可以在STANDBY上降低功率浪费
公开(公告)号：US20110044075A1
公开(公告)日：2011-02-24
申请号：US12588183
申请日：2009-10-07
申请人： Lien-Hsing Chen , Li-Hao Liu
发明人： Lien-Hsing Chen , Li-Hao Liu
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A power converter includes at least one electric control switch, an electric current detecting and converting unit, a power controller, and a voltage detecting and controlling unit at the primary side; and a synchronous rectifying circuit, two MOSFETs, and an oscillating loop. During the actual operation, electric current detecting and converting unit outputs an AC voltage signal to the power controller and outputs a DC voltage signal to the voltage detecting and controlling unit, and then voltage detecting and controlling unit compares with a reference voltage to turn off the synchronous rectifying circuit at the no-load mode and to rectify via a body diodes of the MOSFETs. Accordingly, the power converter can reduce the power wastage at the no-load mode to be energy-saving.
摘要翻译：功率转换器包括至少一个电气控制开关，电流检测和转换单元，功率控制器和初级侧的电压检测和控制单元; 和同步整流电路，两个MOSFET和一个振荡环路。在实际操作中，电流检测和转换单元向功率控制器输出交流电压信号，并向电压检测和控制单元输出直流电压信号，然后电压检测和控制单元与参考电压进行比较，以关断同步整流电路，并通过MOSFET的体二极管进行整流。因此，功率转换器可以将空载时的功率损耗降低到节能。

6. 发明授权

US08649190B2 Power converter having high efficiency at low load 有权
标题翻译：功率转换器在低负载下具有高效率
公开(公告)号：US08649190B2
公开(公告)日：2014-02-11
申请号：US13104803
申请日：2011-05-10
申请人： Lien-Hsing Chen , Li-Hao Liu
发明人： Lien-Hsing Chen , Li-Hao Liu
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , H02M2001/0032 , Y02B70/1475 , Y02B70/16
摘要： A power converter includes a DC power source, a transformer having a first winding, a first MOSFET and a PWM controller at the primary side and a second winding, a drive control unit, a current detection control unit, a comparator and a second MOSFET at the secondary side. The comparator has its input end electrically connected to the current detection control unit and its output end electrically connected to the drive control unit, which is electrically connected to the second MOSFET for synchronous rectification. The second MOSFET is electrically connected to one end of the second winding, having a body diode built therein. The second winding and the second MOSFET constitute a combination circuit electrically connected to a load that has a capacitor electrically connected thereto in a parallel manner. By means of the aforesaid arrangement, conduction loss at a low load is minimized, thereby improving the efficiency at a low load.
摘要翻译：电力转换器包括直流电源，具有第一绕组的变压器，初级侧的第一MOSFET和PWM控制器以及第二绕组，驱动控制单元，电流检测控制单元，比较器和第二MOSFET，二次侧。比较器的输入端电连接到电流检测控制单元，其输出端电连接到驱动控制单元，驱动控制单元电连接到用于同步整流的第二MOSFET。第二MOSFET电连接到第二绕组的一端，其中内置有体二极管。第二绕组和第二MOSFET构成电连接到具有与之并联的电容器的负载的组合电路。通过上述布置，低负载下的导通损耗最小化，从而提高了低负载时的效率。

7. 发明授权

US07894214B1 Power converter capable of lowering power wastage on standby 有权
标题翻译：电源转换器能够在待机时降低功耗
公开(公告)号：US07894214B1
公开(公告)日：2011-02-22
申请号：US12588183
申请日：2009-10-07
申请人： Lien-Hsing Chen , Li-Hao Liu
发明人： Lien-Hsing Chen , Li-Hao Liu
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A power converter includes at least one electric control switch, an electric current detecting and converting unit, a power controller, and a voltage detecting and controlling unit at the primary side; and a synchronous rectifying circuit, two MOSFETs, and an oscillating loop. During the actual operation, electric current detecting and converting unit outputs an AC voltage signal to the power controller and outputs a DC voltage signal to the voltage detecting and controlling unit, and then voltage detecting and controlling unit compares with a reference voltage to turn off the synchronous rectifying circuit at the no-load mode and to rectify via a body diodes of the MOSFETs. Accordingly, the power converter can reduce the power wastage at the no-load mode to be energy-saving.
摘要翻译：功率转换器包括至少一个电气控制开关，电流检测和转换单元，功率控制器和初级侧的电压检测和控制单元; 和同步整流电路，两个MOSFET和一个振荡环路。在实际操作中，电流检测和转换单元向功率控制器输出交流电压信号，并向电压检测和控制单元输出直流电压信号，然后电压检测和控制单元与参考电压进行比较，以关断同步整流电路，并通过MOSFET的体二极管进行整流。因此，功率转换器可以将空载时的功率损耗降低到节能。

8. 发明授权

US08817495B2 Ultralow no-load conduction loss DC power converter 有权
标题翻译：超低空导通损耗直流电源转换器
公开(公告)号：US08817495B2
公开(公告)日：2014-08-26
申请号：US13104783
申请日：2011-05-10
申请人： Lien-Hsing Chen , Li-Hao Liu
发明人： Lien-Hsing Chen , Li-Hao Liu
IPC分类号： H02M3/335 , H02M1/00
CPC分类号： H02M3/33592 , H02M2001/0032 , Y02B70/1475 , Y02B70/16
摘要： An ultralow no-load conduction loss DC converter includes a DC power source, a transformer having a first winding, a first MOSET and a PWM controller at the primary side and a second winding, a third winding, a drive control unit, a rectifier unit and a second MOSFET at the secondary side. The second MOSFET, the drive control unit and the rectifier unit constitutes a combination circuit electrically coupled between one end of the second winding and one end of the third winding. The second MOSFET has set therein a body diode. The second winding and the second MOSFET forms a combination circuit electrically connected to a load. Thus, the decision to turn off the drive control unit is made at the secondary side so that non-load conduction loss can be minimized.
摘要翻译：超低空导通损耗DC转换器包括直流电源，具有第一绕组的变压器，初级侧的第一MOSET和PWM控制器以及第二绕组，第三绕组，驱动控制单元，整流单元和次级侧的第二MOSFET。第二MOSFET，驱动控制单元和整流器单元构成电耦合在第二绕组的一端和第三绕组的一端之间的组合电路。第二个MOSFET在其中设置了体二极管。第二绕组和第二MOSFET形成电连接到负载的组合电路。因此，在二次侧进行关闭驱动控制单元的决定，从而可以使非负载传导损耗最小化。

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