公开(公告)号：US07830674B2

公开(公告)日：2010-11-09

申请号：US12414503

申请日：2009-03-30

申请人： Shih-Hsien Chang ,  Chih-Hung Yen

发明人： Shih-Hsien Chang ,  Chih-Hung Yen

IPC分类号： H02M3/335

CPC分类号： H02M1/4258 ,  H02M2001/0032 ,  Y02B70/126 ,  Y02B70/16

摘要： A single-stage switching power supply includes a transformer, a voltage level generation circuit, a first switching circuit, a second switching circuit, a rectifying and filtering circuit, a feedback circuit and a control circuit. The rectifying and filtering circuit is connected to the secondary winding assembly and the system circuit for generating an output voltage. The feedback circuit generates a feedback signal in response to the output voltage. In response to the feedback signal and an operating-status signal issued by the system circuit, the first and second switching circuits are alternately enabled under control of the control circuit such that electric energy of a first DC voltage is transmitted from the first primary winding assembly to the secondary winding assembly. The first switching circuit is disabled but the second switching circuit is enabled under control of the control circuit when the operating-status signal is at a standby operating status.

摘要翻译： 单级开关电源包括变压器，电压电平生成电路，第一开关电路，第二开关电路，整流和滤波电路，反馈电路和控制电路。 整流滤波电路连接到次级绕组组件和用于产生输出电压的系统电路。 反馈电路响应于输出电压产生反馈信号。 响应于所述反馈信号和由所述系统电路发出的操作状态信号，所述第一和第二开关电路在所述控制电路的控制下被交替地使能，使得第一直流电压的电能从所述第一初级绕组组件 到次级绕组组件。 第一开关电路被禁止，但是当操作状态信号处于待机运行状态时，第二开关电路在控制电路的控制下被使能。

公开(公告)号：US20100270947A1

公开(公告)日：2010-10-28

申请号：US12752234

申请日：2010-04-01

申请人： Shih-Hsien Chang ,  Po-Nien Ko

发明人： Shih-Hsien Chang ,  Po-Nien Ko

IPC分类号： H05B41/36

CPC分类号： H05B33/0815 ,  H02M3/33569 ,  Y02B70/1433

摘要： A current-sharing supply circuit includes a current providing circuit, a current-sharing circuit, a first output rectifier circuit and a second output rectifier circuit. The current providing circuit receives an input voltage and generating a first current or a first voltage, thereby providing electrical energy to a first set of DC loads and a second set of DC loads. The first output rectifier circuit is interconnected between the first set of DC loads and a first output terminal of the current-sharing circuit, thereby generating a first output current to the first set of DC loads. The second output rectifier circuit is interconnected between the second set of DC loads and a second output terminal of the current-sharing circuit, thereby generating a second output current to the second set of DC loads. The first output current and the second output current are balanced by the current-sharing circuit.

摘要翻译： 分流电源电路包括电流提供电路，电流共享电路，第一输出整流电路和第二输出整流电路。 电流提供电路接收输入电压并产生第一电流或第一电压，从而向第一组DC负载和第二组DC负载提供电能。 第一输出整流器电路在第一组直流负载组和电流共享电路的第一输出端之间互连，由此产生到第一组直流负载的第一输出电流。 第二输出整流器电路在第二组直流负载组和电流共享电路的第二输出端之间互连，由此产生到第二组直流负载的第二输出电流。 第一输出电流和第二输出电流由电流共享电路平衡。

公开(公告)号：US20080219030A1

公开(公告)日：2008-09-11

申请号：US11776628

申请日：2007-07-12

申请人： Shih-Hsien Chang

发明人： Shih-Hsien Chang

IPC分类号： H02M3/335 ,  H02M7/797

CPC分类号： H02M3/33507 ,  H02M3/33569

摘要： The configurations of an isolated DC/DC converter and an isolated DC/AC converter and the controlling methods thereof are provided. The proposed isolated DC/DC converter includes a DC/AC switching device, a transformer, a rectifier, and a duty ratio and frequency modulating apparatus coupled to the rectifier and the DC/AC switching device for generating a driving signal to adjust a duty ratio and a frequency of the switching device so as to regulate an output DC voltage of the converter.

摘要翻译： 提供了隔离DC / DC转换器和隔离式DC / AC转换器的配置及其控制方法。 所提出的隔离DC / DC转换器包括DC / AC开关器件，变压器，整流器以及与整流器和DC / AC开关器件耦合的占空比和频率调制器件，用于产生驱动信号以调整占空比 以及开关装置的频率，以调节转换器的输出直流电压。

公开(公告)号：US07301427B2

公开(公告)日：2007-11-27

申请号：US11411665

申请日：2006-04-26

申请人： Shih-Hsien Chang

发明人： Shih-Hsien Chang

IPC分类号： H01F27/28

CPC分类号： H01F27/38 ,  H01F30/04 ,  H01F30/06 ,  H01F38/10 ,  H05B41/2822

摘要： A transformer having auxiliary winding coils for sensing magnetic flux balance is disclosed. The transformer comprises a first winding part having a first channel, a second winding part having a second channel a third winding part having a third channel, a primary winding coil wound around the first winding part, a first secondary winding coil wound around the second winding part, a second secondary winding coil wound around the third winding part, a first auxiliary winding coil for sensing magnetic flux balance wound around the second winding part, a second auxiliary winding coil for sensing magnetic flux balance wound around the third winding part, and a magnetic core assembly having a first extension part disposed in the first channel, a second extension part disposed in the second channel, and a third extension part disposed in the third channel. The first and the second secondary winding coils couple to a plurality of lamps for providing energy to the plurality of lamps, and the first and the second auxiliary winding coils couple to a voltage detecting circuit for detecting if the energy provided to the plurality of lamps is substantially equal.

摘要翻译： 公开了一种具有用于感测磁通平衡的辅助绕组线圈的变压器。 变压器包括具有第一通道的第一绕组部分，具有第二通道的第二绕组部分，具有第三通道的第三绕组部分，缠绕在第一绕组部分上的初级绕组线圈，缠绕在第二绕组上的第一次级绕组线圈 卷绕在第三绕组部分的第二次级绕组线圈，用于感测卷绕在第二绕组部分上的磁通平衡的第一辅助绕组线圈，用于感测卷绕在第三绕组部分上的磁通平衡的第二辅助绕组线圈，以及 磁芯组件具有设置在第一通道中的第一延伸部分，设置在第二通道中的第二延伸部分和设置在第三通道中的第三延伸部分。 第一和第二次级绕组线圈耦合到多个用于向多个灯提供能量的灯，并且第一和第二辅助绕组线圈耦合到电压检测电路，用于检测提供给多个灯的能量是否为 基本相等

公开(公告)号：US07142079B2

公开(公告)日：2006-11-28

申请号：US10982353

申请日：2004-11-05

申请人： Shih-Hsien Chang

发明人： Shih-Hsien Chang

IPC分类号： H01F27/02

CPC分类号： H01F27/325 ,  H01F27/027 ,  H01F27/306 ,  H01F2005/043

摘要： A transformer structure is proposed herein which includes a primary winding coil, a secondary winding coil, a bobbin module, and a magnetic core assembly. The magnetic core assembly is mounted within the bobbin module. The bobbin module includes a first winding window portion and a second winding window portion in which the first winding window portion allows the primary winding coil to be wound thereupon and the second winding window portion allows the secondary winding coil to be wound thereupon. Both of first winding window portion and the second winding window portion include a first lateral plate, and each couples or separate with each other by the first lateral plate, such that the primary winding coil and the secondary winding coil are separated with each other and the leakage inductance, and the safe distance of electrical security for the transformer is increased accordingly.

摘要翻译： 本文提出了一种变压器结构，其包括初级绕组线圈，次级绕组线圈，线轴模块和磁芯组件。 磁芯组件安装在线轴模块内。 线轴模块包括第一绕组窗口部分和第二绕组窗口部分，其中第一绕组窗口部分允许初级绕组线圈在其上卷绕，并且第二绕组窗口部分允许次级绕组线圈在其上卷绕。 第一绕组窗口部分和第二绕组窗口部分都包括第一侧板，并且每个通过第一侧板彼此耦合或分离，使得初级绕组线圈和次级绕组线圈彼此分离，并且 漏电感，变压器电气安全距离相应增加。

公开(公告)号：US08374010B2

公开(公告)日：2013-02-12

申请号：US12836557

申请日：2010-07-14

申请人： Shih-Hsien Chang ,  Po-Nien Ko

发明人： Shih-Hsien Chang ,  Po-Nien Ko

IPC分类号： H02M7/48

CPC分类号： H02J1/08 ,  G09G3/3406 ,  G09G5/008 ,  G09G5/18 ,  G09G2330/02 ,  G09G2330/028 ,  H02J3/14 ,  H02M7/06 ,  H02M2001/008 ,  H03K17/08122 ,  H05B33/0818 ,  H05B33/0827 ,  H05B37/029 ,  Y02B20/346 ,  Y10T307/406 ,  Y10T307/707

摘要： A power supply circuit for receiving an input voltage to drive a plurality of loads is disclosed. The power supply circuit comprises a plurality of switch circuits, a plurality of power conversion circuits and a phase delay circuit. The plurality of switch circuits are connected with the plurality of loads, respectively. The plurality of power conversion circuits are connected with the plurality of loads and the plurality of switch circuits, respectively, for converting the input voltage into a plurality of driving voltages and transmitting the plurality of driving voltages to the plurality of loads, respectively, when the plurality of switch circuits are conducted. The phase delay circuit is connected with the plurality of switch circuits and a system circuit for generating a plurality of delay signals in response to a switch signal from the system circuit and transmitting the plurality of delay signals to control terminals of the plurality of switch circuits, respectively, so as to make the plurality of switch circuits be conducted or shut off. The plurality of delay signals are converted into an enabling status from a disabling status at different time points so that the plurality of switch circuits are conducted at different time points.

摘要翻译： 公开了一种用于接收输入电压以驱动多个负载的电源电路。 电源电路包括多个开关电路，多个功率转换电路和相位延迟电路。 多个开关电路分别与多个负载连接。 多个功率转换电路分别与多个负载和多个开关电路连接，用于将输入电压转换为多个驱动电压并将多个驱动电压分别传输到多个负载，当 进行多个开关电路。 相位延迟电路与多个开关电路和用于响应于来自系统电路的开关信号产生多个延迟信号并将多个延迟信号发送到多个开关电路的控制端的系统电路连接， 以使多个开关电路被导通或切断。 多个延迟信号从不同时间点的禁用状态转换成使能状态，使得多个开关电路在不同的时间点进行。

公开(公告)号：US08310217B2

公开(公告)日：2012-11-13

申请号：US12467056

申请日：2009-05-15

申请人： Shih-Hsien Chang ,  Jian-Feng Tsai

发明人： Shih-Hsien Chang ,  Jian-Feng Tsai

IPC分类号： G05F1/24 ,  H01F38/28

CPC分类号： H02M1/4225 ,  H02M3/1584 ,  Y02B70/126

摘要： A power conversion circuit for decentralizing input current includes a capacitor, a first inductor, a first switching circuit, a first discharging circuit, a second inductor, a second switching circuit, a second discharging circuit, and a control circuit. Under control of the control circuit, the first switching circuit and the second switching circuit are alternately conducted, and the second switching circuit is successively conducted when the first switching circuit is shut off.

摘要翻译： 用于分散输入电流的功率转换电路包括电容器，第一电感器，第一开关电路，第一放电电路，第二电感器，第二开关电路，第二放电电路和控制电路。 在控制电路的控制下，第一开关电路和第二开关电路交替导通，并且第二开关电路在第一开关电路被切断时依次导通。

公开(公告)号：US20110156615A1

公开(公告)日：2011-06-30

申请号：US12974846

申请日：2010-12-21

申请人： Shih-Hsien Chang ,  Yao-Tien Huang

发明人： Shih-Hsien Chang ,  Yao-Tien Huang

IPC分类号： H05B37/02

CPC分类号： H05B33/0815

摘要： A backlight driving circuit includes a voltage-regulating circuit, a self-excited oscillation circuit, a transformer, a rectifying circuit and a filtering circuit. The voltage-regulating circuit is used for receiving an input voltage and adjusting the input voltage into a DC voltage. The self-excited oscillation circuit generates an oscillation voltage according to the DC voltage. The transformer includes a first primary winding assembly and a secondary winding assembly. The first primary winding assembly is connected with the self-excited oscillation circuit for receiving the oscillation voltage, so that the secondary winding assembly is induced to generate an AC output voltage. The rectifying circuit is used for rectifying the AC output voltage into a DC driving voltage. The filtering circuit is connected to the rectifying circuit and plural LED strings for filtering the DC driving voltage, so that the plural LED strings are driven by the filtered DC driving voltage.

摘要翻译： 背光驱动电路包括电压调节电路，自激振荡电路，变压器，整流电路和滤波电路。 电压调节电路用于接收输入电压并将输入电压调整为直流电压。 自激振荡电路根据直流电压产生振荡电压。 变压器包括第一初级绕组组件和次级绕组组件。 第一初级绕组组件与用于接收振荡电压的自激振荡电路连接，使得次级绕组组件被感应以产生AC输出电压。 整流电路用于将交流输出电压整流为直流驱动电压。 滤波电路连接到整流电路和多个用于滤波直流驱动电压的LED串，使得多个LED串由被滤波的直流驱动电压驱动。

公开(公告)号：US20100164393A1

公开(公告)日：2010-07-01

申请号：US12485496

申请日：2009-06-16

申请人： Shih-Hsien Chang ,  Ming-Chih Hsieh

发明人： Shih-Hsien Chang ,  Ming-Chih Hsieh

IPC分类号： H05B41/16

CPC分类号： H05B41/2827 ,  H05B33/0818 ,  H05B33/0848 ,  H05B41/3927

摘要： A light source driving circuit includes a transformer, a switching circuit, a control circuit, a brightness adjusting circuit and an isolator circuit. The brightness adjusting circuit is connected to a secondary winding assembly of the transformer and the light-emitting element for detecting an output voltage and/or an output current and generating a control signal according to the brightness adjusting signal. The isolator circuit is used for isolating the primary winding assembly of the transformer from the brightness adjusting circuit. The isolator circuit generates a feedback current according to the control signal. According to the feedback current, the switching circuit is controlled by the control circuit. As a status of the brightness adjusting signal is changed, a status of the control signal is changed and a time period of changing the status of the control signal is longer than a time period of changing the status of the brightness adjusting signal.

摘要翻译： 光源驱动电路包括变压器，开关电路，控制电路，亮度调节电路和隔离电路。 亮度调节电路连接到变压器的次级绕组组件和用于检测输出电压和/或输出电流的发光元件，并根据亮度调节信号产生控制信号。 隔离器电路用于将变压器的初级绕组组件与亮度调节电路隔离。 隔离电路根据控制信号产生反馈电流。 根据反馈电流，开关电路由控制电路控制。 随着亮度调节信号的状态改变，控制信号的状态改变，并且改变控制信号的状态的时间段比改变亮度调节信号的状态的时间段长。

公开(公告)号：US20100135044A1

公开(公告)日：2010-06-03

申请号：US12414503

申请日：2009-03-30

申请人： Shih-Hsien Chang ,  Chih-Hung Yen

发明人： Shih-Hsien Chang ,  Chih-Hung Yen

IPC分类号： H02M3/22

CPC分类号： H02M1/4258 ,  H02M2001/0032 ,  Y02B70/126 ,  Y02B70/16

摘要： A single-stage switching power supply includes a transformer, a voltage level generation circuit, a first switching circuit, a second switching circuit, a rectifying and filtering circuit, a feedback circuit and a control circuit. The rectifying and filtering circuit is connected to the secondary winding assembly and the system circuit for generating an output voltage. The feedback circuit generates a feedback signal in response to the output voltage. In response to the feedback signal and an operating-status signal issued by the system circuit, the first and second switching circuits are alternately enabled under control of the control circuit such that electric energy of a first DC voltage is transmitted from the first primary winding assembly to the secondary winding assembly. The first switching circuit is disabled but the second switching circuit is enabled under control of the control circuit when the operating-status signal is at a standby operating status.

摘要翻译： 单级开关电源包括变压器，电压电平生成电路，第一开关电路，第二开关电路，整流和滤波电路，反馈电路和控制电路。 整流滤波电路连接到次级绕组组件和用于产生输出电压的系统电路。 反馈电路响应于输出电压产生反馈信号。 响应于所述反馈信号和由所述系统电路发出的操作状态信号，所述第一和第二开关电路在所述控制电路的控制下被交替启动，使得第一直流电压的电能从所述第一初级绕组组件 到次级绕组组件。 第一开关电路被禁止，但是当操作状态信号处于待机运行状态时，第二开关电路在控制电路的控制下被使能。