公开(公告)号：US08817497B2

公开(公告)日：2014-08-26

申请号：US13131587

申请日：2008-12-03

申请人： Jun Zheng ,  Eng Hwee Quek ,  Huaming Guo

发明人： Jun Zheng ,  Eng Hwee Quek ,  Huaming Guo

IPC分类号： H02M3/335 ,  H02M1/44

CPC分类号： H02M3/33507 ,  H02M1/44

摘要： A switching power converter (200, 300, 400, 500) comprises a transformer (211) with a parasitic capacitance (212), a first switch (207) coupled to the transformer (211) and configured to couple or decouple a load (219) to or from a power source via the transformer (211), a switch controller (205) coupled to the first switch (207) and configured to generate a switch drive signal (206) for turning on or off the first switch (207) according to switching cycles, and a bypass circuit configured to provide a bypass path for the parasitic elements such as the parasitic capacitance (212). The bypass circuit may be coupled in parallel with the auxiliary winding (220), the primary winding (213), or the secondary winding (214) of the transformer (211). High frequency ringing and EMI/RFI is reduced when the bypass circuit is enabled.

摘要翻译： 开关功率转换器（200,300,400,500）包括具有寄生电容（212）的变压器（211），耦合到变压器（211）的第一开关（207）并且被配置为耦合或解耦负载（219 ）连接到第一开关（207）并且被配置为产生用于接通或断开第一开关（207）的开关驱动信号（206）的开关控制器（205） 以及旁路电路，其被配置为为诸如寄生电容（212）的寄生元件提供旁路路径。 旁路电路可以与变压器（211）的辅助绕组（220），初级绕组（213）或次级绕组（214）并联耦合。 当旁路电路使能时，高频振铃和EMI / RFI降低。

公开(公告)号：US20110228569A1

公开(公告)日：2011-09-22

申请号：US13131587

申请日：2008-12-03

申请人： Jun Zheng ,  Eng Hwee Quek ,  Huaming Guo

发明人： Jun Zheng ,  Eng Hwee Quek ,  Huaming Guo

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M1/44

摘要： A switching power converter (200, 300, 400, 500) comprises a transformer (211) with a parasitic capacitance (212), a first switch (207) coupled to the transformer (211) and configured to couple or decouple a load (219) to or from a power source via the transformer (211), a switch controller (205) coupled to the first switch (207) and configured to generate a switch drive signal (206) for turning on or off the first switch (207) according to switching cycles, and a bypass circuit configured to provide a bypass path for the parasitic elements such as the parasitic capacitance (212). The bypass circuit may be coupled in parallel with the auxiliary winding (220), the primary winding (213), or the secondary winding (214) of the transformer (211). High frequency ringing and EMI/RFI is reduced when the bypass circuit is enabled.

摘要翻译： 开关功率转换器（200,300,400,500）包括具有寄生电容（212）的变压器（211），耦合到变压器（211）的第一开关（207）并且被配置为耦合或解耦负载（219 ）连接到第一开关（207）并且被配置为产生用于接通或断开第一开关（207）的开关驱动信号（206）的开关控制器（205） 以及旁路电路，其被配置为为诸如寄生电容（212）的寄生元件提供旁路路径。 旁路电路可以与变压器（211）的辅助绕组（220），初级绕组（213）或次级绕组（214）并联耦合。 当旁路电路使能时，高频振铃和EMI / RFI降低。

公开(公告)号：US20110122658A1

公开(公告)日：2011-05-26

申请号：US13055928

申请日：2008-08-06

申请人： Eng Hwee Quek ,  Jun Zheng

发明人： Eng Hwee Quek ,  Jun Zheng

IPC分类号： H02M3/335 ,  H02M7/217

CPC分类号： H02M3/335 ,  H01F27/38 ,  H02M2001/0006

摘要： The power converter includes a transformer that is coupled or decoupled from a power source by a switch controlled by a switch controller. The transformer includes a first primary winding coupled to a secondary winding. The energy stored in the leakage inductance of the first primary winding is received by a second primary winding. The energy received by the second primary winding is provided to the switch controller to power the switch controller. The second primary winding is wound adjacent to the first primary winding to receive more energy from the first primary winding.

摘要翻译： 功率转换器包括通过由开关控制器控制的开关与电源耦合或去耦合的变压器。 变压器包括耦合到次级绕组的第一初级绕组。 存储在第一初级绕组的漏感中的能量由第二初级绕组接收。 将第二初级绕组接收到的能量提供给开关控制器以为开关控制器供电。 第二初级绕组缠绕在第一初级绕组附近以从第一初级绕组接收更多的能量。

公开(公告)号：US07936132B2

公开(公告)日：2011-05-03

申请号：US12174389

申请日：2008-07-16

申请人： Eng Hwee Quek ,  Mark R. Muegge ,  Gordon Chen

发明人： Eng Hwee Quek ,  Mark R. Muegge ,  Gordon Chen

IPC分类号： G05F1/00 ,  H05B37/00

CPC分类号： H05B33/0815 ,  Y02B20/347

摘要： An LED lamp is provided in which the output light intensity of the LEDs in the LED lamp is adjusted based on the input voltage to the LED lamp. The LED lamp comprises one or more LEDs, and an LED driver configured to receive an input voltage and provide regulated current to said one or more LEDs, where the LED driver is configured to adjust the regulated current to said one or more LEDs according to the input voltage to adjust the output light intensity of said one or more LEDs. The LED lamp can be a direct replacement of conventional incandescent lamps in typical wiring configurations found in residential and commercial building lighting applications that use conventional dimmer switches that carry out dimming by changing the input voltage to the LED lamp.

摘要翻译： 提供了一种LED灯，其中LED灯的LED的输出光强度基于对LED灯的输入电压进行调节。 LED灯包括一个或多个LED，以及LED驱动器，其被配置为接收输入电压并向所述一个或多个LED提供调节电流，其中LED驱动器配置成根据所述LED调节到所述一个或多个LED的调节电流 输入电压以调节所述一个或多个LED的输出光强度。 LED灯可以直接替代传统的白炽灯，在典型的布线配置中，在住宅和商业建筑照明应用中，使用传统的调光开关，通过改变对LED灯的输入电压进行调光。

公开(公告)号：US20100013409A1

公开(公告)日：2010-01-21

申请号：US12174389

申请日：2008-07-16

申请人： Eng Hwee Quek ,  Mark R. Muegge ,  Gordon Chen

发明人： Eng Hwee Quek ,  Mark R. Muegge ,  Gordon Chen

IPC分类号： H05B41/36

CPC分类号： H05B33/0815 ,  Y02B20/347

摘要： An LED lamp is provided in which the output light intensity of the LEDs in the LED lamp is adjusted based on the input voltage to the LED lamp. The LED lamp comprises one or more LEDs, and an LED driver configured to receive an input voltage and provide regulated current to said one or more LEDs, where the LED driver is configured to adjust the regulated current to said one or more LEDs according to the input voltage to adjust the output light intensity of said one or more LEDs. The LED lamp can be a direct replacement of conventional incandescent lamps in typical wiring configurations found in residential and commercial building lighting applications that use conventional dimmer switches that carry out dimming by changing the input voltage to the LED lamp.

摘要翻译： 提供了一种LED灯，其中LED灯的LED的输出光强度基于对LED灯的输入电压进行调节。 LED灯包括一个或多个LED，以及LED驱动器，其被配置为接收输入电压并向所述一个或多个LED提供调节电流，其中LED驱动器配置成根据所述LED调节到所述一个或多个LED的调节电流 输入电压以调节所述一个或多个LED的输出光强度。 LED灯可以直接替代传统的白炽灯，在典型的布线配置中，在住宅和商业建筑照明应用中，使用传统的调光开关，通过改变对LED灯的输入电压进行调光。

公开(公告)号：US08570768B2

公开(公告)日：2013-10-29

申请号：US13088268

申请日：2011-04-15

申请人： Eng Hwee Quek

发明人： Eng Hwee Quek

IPC分类号： H05K7/00 ,  H05K7/02

CPC分类号： H05K3/30 ,  H01F27/306 ,  H01F27/325 ,  H01F2027/065 ,  H05K7/02 ,  Y10T29/49073 ,  Y10T29/4913

摘要： A transformer assembly is disclosed. An example circuit board assembly includes a circuit board. A drum core inductor is also included and has a drum core, a first winding, and first and second terminals extending from a first end of the drum core inductor. A wire of the first winding is wound around an axis of the drum core. The first winding has first and second ends coupled to the first and second terminals of the drum core inductor, respectively. A bobbin has first and second terminals extending from a first end of the bobbin. A wire of a second winding is wound around an axis of the bobbin. The second winding has first and second ends coupled to the first and second terminals of the bobbin, respectively. The first ends of the drum core inductor and the bobbin are attached to a circuit board such that the drum core inductor is positioned on the circuit board inside an opening of the bobbin defined along the axis of the bobbin. The drum core inductor and the bobbin are detached from one another.

摘要翻译： 公开了一种变压器组件。 示例电路板组件包括电路板。 还包括鼓芯电感器，并且具有鼓芯，第一绕组以及从鼓芯电感器的第一端延伸的第一和第二端子。 第一绕组的线缠绕在鼓芯的轴线上。 第一绕组具有分别耦合到鼓芯电感器的第一和第二端子的第一和第二端。 线轴具有从线轴的第一端延伸的第一和第二端子。 第二绕组的线缠绕在线轴的轴线上。 第二绕组具有分别联接到线轴的第一和第二端子的第一和第二端。 鼓芯电感器和线轴的第一端附接到电路板，使得鼓芯电感器位于线轴上沿着线轴的轴线限定的线轴的开口内的电路板上。 鼓芯电感器和线轴彼此分离。

公开(公告)号：US20120262895A1

公开(公告)日：2012-10-18

申请号：US13088268

申请日：2011-04-15

申请人： Eng Hwee Quek

发明人： Eng Hwee Quek

IPC分类号： H05K7/02 ,  H01F27/29 ,  H01F41/02

CPC分类号： H05K3/30 ,  H01F27/306 ,  H01F27/325 ,  H01F2027/065 ,  H05K7/02 ,  Y10T29/49073 ,  Y10T29/4913

摘要： A transformer assembly is disclosed. An example circuit board assembly includes a circuit board. A drum core inductor is also included and has a drum core, a first winding, and first and second terminals extending from a first end of the drum core inductor. A wire of the first winding is wound around an axis of the drum core. The first winding has first and second ends coupled to the first and second terminals of the drum core inductor, respectively. A bobbin has first and second terminals extending from a first end of the bobbin. A wire of a second winding is wound around an axis of the bobbin. The second winding has first and second ends coupled to the first and second terminals of the bobbin, respectively. The first ends of the drum core inductor and the bobbin are attached to a circuit board such that the drum core inductor is positioned on the circuit board inside an opening of the bobbin defined along the axis of the bobbin. The drum core inductor and the bobbin are detached from one another.

摘要翻译： 公开了一种变压器组件。 示例电路板组件包括电路板。 还包括鼓芯电感器，并且具有鼓芯，第一绕组以及从鼓芯电感器的第一端延伸的第一和第二端子。 第一绕组的线缠绕在鼓芯的轴线上。 第一绕组具有分别耦合到鼓芯电感器的第一和第二端子的第一和第二端。 线轴具有从线轴的第一端延伸的第一和第二端子。 第二绕组的线缠绕在线轴的轴线上。 第二绕组具有分别联接到线轴的第一和第二端子的第一和第二端。 鼓芯电感器和线轴的第一端附接到电路板，使得鼓芯电感器位于线轴上沿着线轴的轴线限定的线轴的开口内的电路板上。 鼓芯电感器和线轴彼此分离。