公开(公告)号：US20090290383A1

公开(公告)日：2009-11-26

申请号：US12403254

申请日：2009-03-12

申请人： Jun ZHOU ,  Xiao-Lin MA ,  Bing GUO

发明人： Jun ZHOU ,  Xiao-Lin MA ,  Bing GUO

IPC分类号： H02M3/335 ,  H03H7/01

CPC分类号： H02M3/337 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

摘要： A resonant circuit has two parallel resonant branches and one assistant inductor connecting the two resonant branches. Each resonant branch has a series capacitor and a series inductor connected in series. The other end of the series inductor is for connecting to a primary side of a transformer unit. The resonant circuit can provide two characteristic resonant frequencies fr and fm, so that a resonant power converter using the resonant circuit has an operating frequency fs that satisfies fs>fr or fm

摘要翻译： 谐振电路具有两个并联谐振分支和一个辅助电感器，连接两个谐振分支。 每个谐振分支具有串联电容器和串联的串联电感器。 串联电感器的另一端用于连接到变压器单元的初级侧。 谐振电路可以提供两个特征谐振频率fr和fm，使得使用谐振电路的谐振功率转换器具有满足fs> fr或fm

公开(公告)号：US08390260B2

公开(公告)日：2013-03-05

申请号：US12653076

申请日：2009-12-08

申请人： Tao Zhang ,  Xiao-Lin Ma

发明人： Tao Zhang ,  Xiao-Lin Ma

IPC分类号： G06F5/00

CPC分类号： H02J1/102 ,  H02J9/005 ,  H02M7/217 ,  H02M2001/0006 ,  Y02P80/112 ,  Y10T307/707 ,  Y10T307/729

摘要： A power supply for a negative voltage load has a switch-mode power unit, a monitoring unit, a first auxiliary power unit and a second auxiliary power unit. The switch-mode power unit has a rectifying circuit, a power factor correction circuit, a DC to DC power circuit. The first auxiliary power unit is connected to output terminals of the power factor correction circuit and converts DC power to a first DC power for driving the monitoring unit. The second auxiliary power unit is connected to the negative voltage load in parallel and converts negative power from the negative voltage load to a second DC power for driving the monitoring unit when AC power is interrupted. Since the first and the second auxiliary power unit do not work at the same time, the power supply can effectively enhances the conversion efficiency of the power supply.

摘要翻译： 用于负电压负载的电源具有开关模式电源单元，监视单元，第一辅助电源单元和第二辅助电源单元。 开关电源单元具有整流电路，功率因数校正电路，直流至直流电源电路。 第一辅助电源单元连接到功率因数校正电路的输出端子，并将直流电力转换为用于驱动监控单元的第一直流电力。 第二辅助电源单元并联连接到负电压负载，并且在AC电源中断时将来自负电压负载的负电力转换为用于驱动监控单元的第二DC电力。 由于第一和第二辅助电源单元不工作，电源可以有效提高电源的转换效率。

公开(公告)号：US08040697B2

公开(公告)日：2011-10-18

申请号：US12403254

申请日：2009-03-12

申请人： Jun Zhou ,  Xiao-Lin Ma ,  Bing Guo

发明人： Jun Zhou ,  Xiao-Lin Ma ,  Bing Guo

IPC分类号： H02M3/335

CPC分类号： H02M3/337 ,  H02M2001/0058 ,  Y02B70/1433 ,  Y02B70/1491

摘要： A resonant circuit has two parallel resonant branches and one assistant inductor connecting the two resonant branches. Each resonant branch has a series capacitor and a series inductor connected in series. The other end of the series inductor is for connecting to a primary side of a transformer unit. The resonant circuit can provide two characteristic resonant frequencies fr and fm, so that a resonant power converter using the resonant circuit has an operating frequency fs that satisfies fs>fr or fm

摘要翻译： 谐振电路具有两个并联谐振分支和一个辅助电感器，连接两个谐振分支。 每个谐振分支具有串联电容器和串联的串联电感器。 串联电感器的另一端用于连接到变压器单元的初级侧。 谐振电路可以提供两个特征谐振频率fr和fm，使得使用谐振电路的谐振功率转换器具有满足fs> fr或fm

公开(公告)号：US20100246224A1

公开(公告)日：2010-09-30

申请号：US12653076

申请日：2009-12-08

申请人： Tao Zhang ,  Xiao-Lin Ma

发明人： Tao Zhang ,  Xiao-Lin Ma

IPC分类号： H02M7/04

CPC分类号： H02J1/102 ,  H02J9/005 ,  H02M7/217 ,  H02M2001/0006 ,  Y02P80/112 ,  Y10T307/707 ,  Y10T307/729

摘要： A power supply for a negative voltage load has a switch-mode power unit, a monitoring unit, a first auxiliary power unit and a second auxiliary power unit. The switch-mode power unit has a rectifying circuit, a power factor correction circuit, a DC to DC power circuit. The first auxiliary power unit is connected to output terminals of the power factor correction circuit and converts DC power to a first DC power for driving the monitoring unit. The second auxiliary power unit is connected to the negative voltage load in parallel and converts negative power from the negative voltage load to a second DC power for driving the monitoring unit when AC power is interrupted. Since the first and the second auxiliary power unit do not work at the same time, the power supply can effectively enhances the conversion efficiency of the power supply.

摘要翻译： 用于负电压负载的电源具有开关模式电源单元，监视单元，第一辅助电源单元和第二辅助电源单元。 开关电源单元具有整流电路，功率因数校正电路，直流至直流电源电路。 第一辅助电源单元连接到功率因数校正电路的输出端子，并将直流电力转换为用于驱动监控单元的第一直流电力。 第二辅助电源单元并联连接到负电压负载，并且在AC电源中断时将来自负电压负载的负电力转换为用于驱动监控单元的第二DC电力。 由于第一和第二辅助电源单元不工作，电源可以有效提高电源的转换效率。

公开(公告)号：US07659649B2

公开(公告)日：2010-02-09

申请号：US11969101

申请日：2008-01-03

申请人： Yung-Ping Lin ,  Dung-Chang Yeh ,  Xiao-Lin Ma ,  Ying-Xi Hu ,  Yong Duan

发明人： Yung-Ping Lin ,  Dung-Chang Yeh ,  Xiao-Lin Ma ,  Ying-Xi Hu ,  Yong Duan

IPC分类号： H02K7/08

CPC分类号： H02K7/085 ,  F04D25/062 ,  F04D29/057 ,  F04D29/058 ,  H02K7/09 ,  H02K7/14

摘要： A fan includes a motor and an impeller. The motor drives the impeller to rotate and includes a base, a bearing, a stator, a rotor and a magnetic element. The central portion of the base is extended to form a bushing for accommodating the bearing therein. The stator telescopes around the bushing. The rotor is disposed corresponding to the stator and has a shaft passing through the bearing. The magnetic element is disposed at the bottom of the bushing and located adjacent to one end of the shaft.

摘要翻译： 风扇包括电机和叶轮。 电机驱动叶轮旋转，并包括基座，轴承，定子，转子和磁性元件。 基部的中心部分被延伸以形成用于在其中容纳轴承的衬套。 定子绕套管望远镜。 转子对应于定子设置并且具有穿过轴承的轴。 磁性元件设置在衬套的底部并且位于轴的一端附近。

公开(公告)号：US20080169733A1

公开(公告)日：2008-07-17

申请号：US11969101

申请日：2008-01-03

申请人： Yung-Ping LIN ,  Dung-Chang Yeh ,  Xiao-Lin Ma ,  Ying-Xi Hu ,  Yong Duan

发明人： Yung-Ping LIN ,  Dung-Chang Yeh ,  Xiao-Lin Ma ,  Ying-Xi Hu ,  Yong Duan

IPC分类号： H02K7/14 ,  H02K7/08

CPC分类号： H02K7/085 ,  F04D25/062 ,  F04D29/057 ,  F04D29/058 ,  H02K7/09 ,  H02K7/14

摘要： A fan includes a motor and an impeller. The motor drives the impeller to rotate and includes a base, a bearing, a stator, a rotor and a magnetic element. The central portion of the base is extended to form a bushing for accommodating the bearing therein. The stator telescopes around the bushing. The rotor is disposed corresponding to the stator and has a shaft passing through the bearing. The magnetic element is disposed at the bottom of the bushing and located adjacent to one end of the shaft.

摘要翻译： 风扇包括电机和叶轮。 电机驱动叶轮旋转，并包括基座，轴承，定子，转子和磁性元件。 基部的中心部分被延伸以形成用于在其中容纳轴承的衬套。 定子绕套管望远镜。 转子对应于定子设置并且具有穿过轴承的轴。 磁性元件设置在衬套的底部并且位于轴的一端附近。