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1. 发明授权

US07034647B2 Integrated magnetics for a DC-DC converter with flexible output inductor 失效
标题翻译：用于具有柔性输出电感器的DC-DC转换器的集成磁性
公开(公告)号：US07034647B2
公开(公告)日：2006-04-25
申请号：US10492238
申请日：2002-10-15
申请人： Liang Yan , Dayu Qu , Bradley Lehman
发明人： Liang Yan , Dayu Qu , Bradley Lehman
IPC分类号： H01F27/24 , H02M3/335
CPC分类号： H02M3/337 , H01F27/38 , H01F37/00 , H01F2038/026 , H02M3/33523
摘要： An integrated magnetic assembly that allows the primary and secondary windings of a transformer and a separate inductor winding to be integrated on a unitary magnetic structure is disclosed. The unitary magnetic structure includes first, second, and third legs that are physically connected and magnetically coupled. The primary and secondary windings of the transformer can be formed on the third leg of the unitary magnetic structure. Alternatively, the primary and secondary windings can be split between the first and second legs. Thus, the primary winding includes first and second primary windings disposed on the first and second legs and the secondary winding includes first and second secondary windings disposed on the first and second legs. The inductor winding may also be formed either on the third leg or it may split into first and second inductor windings and disposed on the first and second legs. In addition, one or more legs may include an energy storage component such as an air gap. This integration of the primary and secondary windings and the inductor winding on the unitary magnetic structure advantageously decouples the inductor function from the transformer function and allows the more optimal design of both the inductor and the transformer. The unitary magnetic structure may be coupled to a full bridge, a half bridge, or a push pull voltage input source to form a DC—DC converter.
摘要翻译：公开了一种集成磁性组件，其允许变压器的初级和次级绕组和单独的电感器绕组集成在单一磁性结构上。整体磁性结构包括物理连接和磁耦合的第一，第二和第三腿。变压器的初级和次级绕组可以形成在单一磁性结构的第三条腿上。或者，主和次级绕组可以在第一和第二腿之间分开。因此，初级绕组包括设置在第一和第二支脚上的第一和第二初级绕组，次级绕组包括设置在第一和第二支脚上的第一和第二次级绕组。电感器绕组也可以形成在第三腿上，或者它可以分成第一和第二电感器绕组并且设置在第一和第二腿上。此外，一个或多个腿可以包括诸如气隙的能量存储部件。主和次级绕组和电感绕组在整体磁性结构上的集成有利于将电感器功能与变压器功能相分离，并允许电感器和变压器两者更优化的设计。单一磁性结构可以耦合到全桥，半桥或推挽电压输入源，以形成DC-DC转换器。

2. 发明申请

US20090106564A1 ACOUSTIC NOISE REDUCTION IN POWER SUPPLY INDUCTORS 有权
标题翻译：电源噪声减少电源电感
公开(公告)号：US20090106564A1
公开(公告)日：2009-04-23
申请号：US11875695
申请日：2007-10-19
申请人： Dayu Qu
发明人： Dayu Qu
IPC分类号： H01F27/30 , G05F1/46 , H01F41/00 , G06F1/26
CPC分类号： G06F1/26 , H01F27/33 , H01F41/0246 , Y10T29/4902
摘要： Embodiments of the present invention provide an apparatus that reduces an audible noise produced in a power supply. The apparatus includes: (1) a housing; (2) an inductor coil formed from a coil of wire enclosed in the housing; (3) a set of wires that are coupled from the inductor coil to the outside of the housing through corresponding apertures in the housing, comprising electrical leads for the inductor coil; and (4) a predetermined amount of adhesive in the apertures that bonds the wires to the housing to reduce an audible noise produced when the current through the inductor coil is cycled quickly.
摘要翻译：本发明的实施例提供一种降低电源产生的可听见的噪音的装置。该装置包括：（1）壳体; （2）由围绕在壳体中的线圈构成的电感线圈; （3）一组电线，其通过壳体中的相应的孔从电感线圈耦合到壳体的外部，包括电感线圈的电引线; 和（4）孔中的预定量的粘合剂，其将导线连接到壳体以减少当通过电感线圈的电流快速循环时产生的可听见的噪声。

3. 发明申请

US20050242668A1 Dynamic control of power converter output voltage slew rate 有权
公开(公告)号：US20050242668A1
公开(公告)日：2005-11-03
申请号：US11174811
申请日：2005-07-01
申请人： Lorenzo Cividino , Dayu Qu
发明人： Lorenzo Cividino , Dayu Qu
IPC分类号： H02J1/10 , H03K17/16
CPC分类号： H02J1/102 , H02M2001/0029 , Y10T307/582 , Y10T307/707
摘要： A system and method is provided for dynamically controlling output voltage slew rate in a power converter. Preferred embodiments of the present invention operate in accordance with a power converter including at least a slew-rate control lead (a trim lead, a control lead, etc.), an error-amplifier circuit located therein, a slew-rate circuit, and a controller electrically connected to the power converter and adapted to dynamically control the converter's output voltage slew rate through the transmission of a slew-rate signal. In one embodiment of the present invention, the slew-rate circuit is external to the power converter and electrically connected to both a trim lead of the power converter and to the controller. In another embodiment of the present invention, the slew-rate circuit is internal to the power converter and electrically connected to both a control lead of the power converter and to the error-amplifier circuit. In either embodiment, the controller is adapted to transmit a slew-rate signal to the slew-rate-control lead (i.e., the trim lead, the control lead, etc.), where the nature of the slew-rate signal is dependant on the configuration of the slew-rate circuit. For example, if the slew-rate circuit comprises a transistor and/or a capacitor, the slew rate signal may comprise a dynamically adjusted voltage or charge-based signal; if the slew-rate circuit comprises a resistor, the slew-rate signal may comprise a dynamically adjusted current-based signal; or if the slew-rate circuit comprises a digital variable resistor, the slew-rate signal may comprise a dynamically adjusted digital signal.

4. 发明授权

US08151128B2 Computer system power source with improved light-load efficiency 有权
标题翻译：具有改善轻载效率的计算机系统电源
公开(公告)号：US08151128B2
公开(公告)日：2012-04-03
申请号：US11867360
申请日：2007-10-04
申请人： Dayu Qu
发明人： Dayu Qu
IPC分类号： G06F1/32
CPC分类号： H02J9/005 , H02M3/1584
摘要： Embodiments of the present invention provide a system that supplies power in a computer system. The system includes a power adapter coupled to a source of electrical power and a set of a set of power consumers coupled to a power bus in the computer system. A full-power mechanism coupled between the power adapter and the power bus supplies power for the power consumers while the computer system is operating in a full-power mode. A low-power mechanism coupled between the power adapter and the power bus in parallel with the power mechanism supplies power for the power consumers while the computer system is in operating in a low-power mode.
摘要翻译：本发明的实施例提供一种在计算机系统中供电的系统。该系统包括耦合到电力源的电力适配器以及耦合到计算机系统中的电力总线的一组电力消耗器的集合。电源适配器和电源总线之间的全功能机构在计算机系统以全功率模式运行时为用电者供电。在电力适配器和电力总线并联的低功率机构与功率机构并联时，在计算机系统以低功率模式运行的情况下为功率消耗者供电。

5. 发明申请

US20050062345A1 DYNAMIC CONTROL OF POWER CONVERTER OUTPUT VOLTAGE SLEW RATE 有权
标题翻译：电力转换器输出电压单体速度的动态控制
公开(公告)号：US20050062345A1
公开(公告)日：2005-03-24
申请号：US10670050
申请日：2003-09-24
申请人： Lorenzo Cividino , Dayu Qu
发明人： Lorenzo Cividino , Dayu Qu
IPC分类号： H02J1/10 , H03K17/16
CPC分类号： H02J1/102 , H02M2001/0029 , Y10T307/582 , Y10T307/707
摘要： A system and method is provided for dynamically controlling output voltage slew rate in a power converter. Preferred embodiments of the present invention operate in accordance with a power converter including at least a slew-rate control lead (a trim lead, a control lead, etc.), an error-amplifier circuit located therein, a slew-rate circuit, and a controller electrically connected to the power converter and adapted to dynamically control the converter's output voltage slew rate through the transmission of a slew-rate signal. In one embodiment of the present invention, the slew-rate circuit is external to the power converter and electrically connected to both a trim lead of the power converter and to the controller. In another embodiment of the present invention, the slew-rate circuit is internal to the power converter and electrically connected to both a control lead of the power converter and to the error-amplifier circuit. In either embodiment, the controller is adapted to transmit a slew-rate signal to the slew-rate-control lead (i.e., the trim lead, the control lead, etc.), where the nature of the slew-rate signal is dependant on the configuration of the slew-rate circuit. For example, if the slew-rate circuit comprises a transistor and/or a capacitor, the slew rate signal may comprise a dynamically adjusted voltage or charge-based signal; if the slew-rate circuit comprises a resistor, the slew-rate signal may comprise a dynamically adjusted current-based signal; or if the slew-rate circuit comprises a digital variable resistor, the slew-rate signal may comprise a dynamically adjusted digital signal.
摘要翻译：提供了一种用于动态控制功率转换器中的输出电压转换速率的系统和方法。本发明的优选实施例根据功率转换器工作，该功率转换器至少包括摆率控制引线（微调引线，控制引线等），位于其中的误差放大器电路，转换速率电路和电连接到所述功率转换器并且适于通过传输压摆率信号来动态地控制所述转换器的输出电压转换速率的控制器。在本发明的一个实施例中，转换速率电路在功率转换器的外部并且电连接到功率转换器的微调引线和控制器。在本发明的另一实施例中，转换速率电路在功率转换器的内部并且电连接到功率转换器的控制引线和误差放大器电路。在任一实施例中，控制器适于将转换速率信号发送到转换速率控制引线（即，修剪引线，控制引线等），其中转换速率信号的性质取决于摆率电路的配置。例如，如果压摆率电路包括晶体管和/或电容器，则转换速率信号可以包括动态调整的电压或基于电荷的信号; 如果压摆率电路包括电阻器，则转换速率信号可以包括动态调整的基于电流的信号; 或者如果压摆率电路包括数字可变电阻器，则转换速率信号可以包括动态调整的数字信号。

6. 发明申请

US20110121928A1 ACOUSTIC NOISE REDUCTION IN POWER SUPPLY INDUCTORS 审中-公开
标题翻译：电源噪声减少电源电感
公开(公告)号：US20110121928A1
公开(公告)日：2011-05-26
申请号：US13019233
申请日：2011-02-01
申请人： Dayu Qu
发明人： Dayu Qu
IPC分类号： H01F27/33 , H02M7/04 , G06F1/16 , H01F27/04 , H01F27/06
CPC分类号： G06F1/26 , H01F27/33 , H01F41/0246 , Y10T29/4902
摘要： Embodiments of the present invention provide an apparatus that reduces an audible noise produced in a power supply. The apparatus includes: (1) a housing; (2) an inductor coil formed from a coil of wire enclosed in the housing; (3) a set of wires that are coupled from the inductor coil to the outside of the housing through corresponding apertures in the housing, comprising electrical leads for the inductor coil; and (4) a predetermined amount of adhesive in the apertures that bonds the wires to the housing to reduce an audible noise produced when the current through the inductor coil is cycled quickly.
摘要翻译：本发明的实施例提供一种降低电源产生的可听见的噪音的装置。该装置包括：（1）壳体; （2）由围绕在壳体中的线圈构成的电感线圈; （3）一组电线，其通过壳体中的相应的孔从电感线圈耦合到壳体的外部，包括电感线圈的电引线; 和（4）孔中的预定量的粘合剂，其将导线连接到壳体以减少当通过电感线圈的电流快速循环时产生的可听见的噪声。

7. 发明申请

US20060109698A1 Self-driven synchronous rectifier circuit 失效
标题翻译：自驱动同步整流电路
公开(公告)号：US20060109698A1
公开(公告)日：2006-05-25
申请号：US10996977
申请日：2004-11-23
申请人： Dayu Qu
发明人： Dayu Qu
IPC分类号： H02M7/217
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A DC-DC power converter has a transformer with a primary side and secondary side. A first power transistor is coupled between a first end of a first winding of the secondary side and a ground terminal. A second power transistor is coupled between a second end of the first winding and the ground terminal. A first driver transistor is coupled to a gate of the first power transistor, and a second driver transistor is coupled to a gate of the second power transistor. A separate driver winding taken off the secondary side of the transformer controls the gates of the first and second driver transistors. First and second inductors are coupled between the opposite ends of the first winding and an output of the power supply. First and second resistors are coupled between the gates of the first and second driver transistors and the ground terminal, respectively.
摘要翻译： DC-DC电力转换器具有初级侧和次级侧的变压器。第一功率晶体管耦合在次级侧的第一绕组的第一端和接地端之间。第二功率晶体管耦合在第一绕组的第二端和接地端子之间。第一驱动晶体管耦合到第一功率晶体管的栅极，第二驱动晶体管耦合到第二功率晶体管的栅极。从变压器的次级侧取下的单独的驱动器绕组控制第一和第二驱动器晶体管的栅极。第一和第二电感器耦合在第一绕组的相对端和电源的输出端之间。第一和第二电阻器分别耦合在第一和第二驱动器晶体管的栅极和接地端子之间。

8. 发明授权

US07915987B2 Acoustic noise reduction in power supply inductors 有权
标题翻译：电源电感噪声降低
公开(公告)号：US07915987B2
公开(公告)日：2011-03-29
申请号：US11875695
申请日：2007-10-19
申请人： Dayu Qu
发明人： Dayu Qu
IPC分类号： H01F27/00 , H01F27/02 , H01F27/29 , H01F7/06 , G05F1/12 , G06F1/00
CPC分类号： G06F1/26 , H01F27/33 , H01F41/0246 , Y10T29/4902
摘要： Embodiments of the present invention provide an apparatus that reduces an audible noise produced in a power supply. The apparatus includes: (1) a housing; (2) an inductor coil formed from a coil of wire enclosed in the housing; (3) a set of wires that are coupled from the inductor coil to the outside of the housing through corresponding apertures in the housing, comprising electrical leads for the inductor coil; and (4) a predetermined amount of adhesive in the apertures that bonds the wires to the housing to reduce an audible noise produced when the current through the inductor coil is cycled quickly.
摘要翻译：本发明的实施例提供一种降低电源产生的可听见的噪音的装置。该装置包括：（1）壳体; （2）由围绕在壳体中的线圈构成的电感线圈; （3）一组电线，其通过壳体中的相应的孔从电感线圈耦合到壳体的外部，包括电感线圈的电引线; 和（4）孔中的预定量的粘合剂，其将导线连接到壳体以减少当通过电感线圈的电流快速循环时产生的可听见的噪声。

9. 发明授权

US07075799B2 Self-driven synchronous rectifier circuit 失效
公开(公告)号：US07075799B2
公开(公告)日：2006-07-11
申请号：US10996977
申请日：2004-11-23
申请人： Dayu Qu
发明人： Dayu Qu
IPC分类号： H02M3/335
CPC分类号： H02M3/33592 , Y02B70/1475
摘要： A DC-DC power converter has a transformer with a primary side and secondary side. A first power transistor is coupled between a first end of a first winding of the secondary side and a ground terminal. A second power transistor is coupled between a second end of the first winding and the ground terminal. A first driver transistor is coupled to a gate of the first power transistor, and a second driver transistor is coupled to a gate of the second power transistor. A separate driver winding taken off the secondary side of the transformer controls the gates of the first and second driver transistors. First and second inductors are coupled between the opposite ends of the first winding and an output of the power supply. First and second resistors are coupled between the gates of the first and second driver transistors and the ground terminal, respectively.

10. 发明授权

US06989612B2 Dynamic control of power converter output voltage slew rate 有权
标题翻译：电源转换器输出电压转换速率的动态控制
公开(公告)号：US06989612B2
公开(公告)日：2006-01-24
申请号：US11174811
申请日：2005-07-01
申请人： Lorenzo Anthony Cividino , Dayu Qu
发明人： Lorenzo Anthony Cividino , Dayu Qu
IPC分类号： H02J1/10
CPC分类号： H02J1/102 , H02M2001/0029 , Y10T307/582 , Y10T307/707
摘要： A system and method is provided for dynamically controlling output voltage slew rate in a power converter. Preferred embodiments of the present invention operate in accordance with a power converter including at least a slew-rate control lead (a trim lead, a control lead, etc.), an error-amplifier circuit located therein, a slew-rate circuit, and a controller electrically connected to the power converter and adapted to dynamically control the converter's output voltage slew rate through the transmission of a slew-rate signal. In one embodiment of the present invention, the slew-rate circuit is external to the power converter and electrically connected to both a trim lead of the power converter and to the controller. In another embodiment of the present invention, the slew-rate circuit is internal to the power converter and electrically connected to both a control lead of the power converter and to the error-amplifier circuit. In either embodiment, the controller is adapted to transmit a slew-rate signal to the slew-rate-control lead (i.e., the trim lead, the control lead, etc.), where the nature of the slew-rate signal is dependant on the configuration of the slew-rate circuit. For example, if the slew-rate circuit comprises a transistor and/or a capacitor, the slew rate signal may comprise a dynamically adjusted voltage or charge-based signal; if the slew-rate circuit comprises a resistor, the slew-rate signal may comprise a dynamically adjusted current-based signal; or if the slew-rate circuit comprises a digital variable resistor, the slew-rate signal may comprise a dynamically adjusted digital signal.
摘要翻译：提供了一种用于动态控制功率转换器中的输出电压转换速率的系统和方法。本发明的优选实施例根据功率转换器工作，该功率转换器至少包括摆率控制引线（微调引线，控制引线等），位于其中的误差放大器电路，转换速率电路和电连接到所述功率转换器并且适于通过传输压摆率信号来动态地控制所述转换器的输出电压转换速率的控制器。在本发明的一个实施例中，转换速率电路在功率转换器的外部并且电连接到功率转换器的微调引线和控制器。在本发明的另一实施例中，转换速率电路在功率转换器的内部并且电连接到功率转换器的控制引线和误差放大器电路。在任一实施例中，控制器适于将转换速率信号发送到转换速率控制引线（即，修剪引线，控制引线等），其中转换速率信号的性质取决于摆率电路的配置。例如，如果压摆率电路包括晶体管和/或电容器，则转换速率信号可以包括动态调整的电压或基于电荷的信号; 如果压摆率电路包括电阻器，则转换速率信号可以包括动态调整的基于电流的信号; 或者如果压摆率电路包括数字可变电阻器，则转换速率信号可以包括动态调整的数字信号。

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