公开(公告)号：US08885362B2

公开(公告)日：2014-11-11

申请号：US13612401

申请日：2012-09-12

申请人： Naixing Kuang ,  Jiali Cai ,  Hongxia Yu

发明人： Naixing Kuang ,  Jiali Cai ,  Hongxia Yu

IPC分类号： H02M3/335

CPC分类号： H05B33/0815 ,  H02M1/36 ,  H02M3/33507 ,  H02M2001/0006 ,  Y02B20/346

摘要： A fast startup switching converter having a first switch, a second switch, a third switch, a first capacitor, and a controller controlling the ON and OFF switching of the second and third switches. The first terminal of the first switch is coupled to the input terminal of the switching converter, the second terminal is coupled to the first terminal of the second switch. The first terminal of the third switch is coupled to the second terminal of the first switch and the first terminal of the second switch. The first capacitor is coupled to the second terminal of the third switch and the controller to provide a power supply voltage for the controller. The switching converter charges the first capacitor through the first and third switches in a first working state, and transfers energy to a load through the first and second switches in a second working state.

摘要翻译： 一种具有第一开关，第二开关，第三开关，第一电容器和控制第二和第三开关的接通和断开的控制器的快速启动开关转换器。 第一开关的第一端子耦合到开关转换器的输入端子，第二端子耦合到第二开关的第一端子。 第三开关的第一端子耦合到第一开关的第二端子和第二开关的第一端子。 第一电容器耦合到第三开关的第二端子和控制器以为控制器提供电源电压。 开关转换器在第一工作状态下通过第一和第三开关对第一电容器充电，并且在第二工作状态下通过第一和第二开关将能量传递到负载。

公开(公告)号：US08901851B2

公开(公告)日：2014-12-02

申请号：US13399230

申请日：2012-02-17

申请人： Naixing Kuang ,  Jiali Cai ,  Hongxia Yu

发明人： Naixing Kuang ,  Jiali Cai ,  Hongxia Yu

IPC分类号： H05B37/00

CPC分类号： H05B33/0815 ,  H05B33/0851

摘要： The present invention provides a controller used in a TRIAC dimmer compatible LED driver and method thereof. The controller comprises a dimming signal generator, a dimming signal processor and a switch control circuit. The dimming signal generator receives an AC chopped voltage from a TRIAC dimmer and generates a dimming signal with regulated duty cycle in accordance with the AC chopped voltage. The dimming signal processor is coupled to the dimming signal generator and generates a processed dimming signal in accordance with the dimming signal. The duty cycle of the processed dimming signal is a sum of a predetermined duty cycle and the duty cycle of the dimming signal. Based on the processed dimming signal and a feedback signal indicative of the current flowing through LED, the switch control circuit generates a control signal to control at least one switch in a switching converter.

摘要翻译： 本发明提供了一种用于TRIAC调光器兼容LED驱动器的控制器及其方法。 控制器包括调光信号发生器，调光​​信号处理器和开关控制电路。 调光信号发生器从TRIAC调光器接收交流斩波电压，并根据交流斩波电压产生调节占空比的调光信号。 调光信号处理器耦合到调光信号发生器，并根据调光信号产生经处理的调光信号。 经处理的调光信号的占空比是预定占空比与调光信号的占空比之和。 基于经处理的调光信号和指示流过LED的电流的反馈信号，开关控制电路产生控制信号以控制开关转换器中的至少一个开关。

公开(公告)号：US20130154487A1

公开(公告)日：2013-06-20

申请号：US13399230

申请日：2012-02-17

申请人： Naixing Kuang ,  Jiali Cai ,  Hongxia Yu

发明人： Naixing Kuang ,  Jiali Cai ,  Hongxia Yu

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0851

摘要： The present invention provides a controller used in a TRIAC dimmer compatible LED driver and method thereof. The controller comprises a dimming signal generator, a dimming signal processor and a switch control circuit. The dimming signal generator receives an AC chopped voltage from a TRIAC dimmer and generates a dimming signal with regulated duty cycle in accordance with the AC chopped voltage. The dimming signal processor is coupled to the dimming signal generator and generates a processed dimming signal in accordance with the dimming signal. The duty cycle of the processed dimming signal is a sum of a predetermined duty cycle and the duty cycle of the dimming signal. Based on the processed dimming signal and a feedback signal indicative of the current flowing through LED, the switch control circuit generates a control signal to control at least one switch in a switching converter.

摘要翻译： 本发明提供了一种用于TRIAC调光器兼容LED驱动器的控制器及其方法。 控制器包括调光信号发生器，调光​​信号处理器和开关控制电路。 调光信号发生器从TRIAC调光器接收交流斩波电压，并根据交流斩波电压产生调节占空比的调光信号。 调光信号处理器耦合到调光信号发生器，并根据调光信号产生经处理的调光信号。 经处理的调光信号的占空比是预定占空比与调光信号的占空比之和。 基于经处理的调光信号和指示流过LED的电流的反馈信号，开关控制电路产生控制信号以控制开关转换器中的至少一个开关。

公开(公告)号：US20130077353A1

公开(公告)日：2013-03-28

申请号：US13612401

申请日：2012-09-12

申请人： Naixing Kuang ,  Jiali Cai ,  Hongxia Yu

发明人： Naixing Kuang ,  Jiali Cai ,  Hongxia Yu

IPC分类号： H02M1/36

CPC分类号： H05B33/0815 ,  H02M1/36 ,  H02M3/33507 ,  H02M2001/0006 ,  Y02B20/346

摘要： A fast startup switching converter comprises a first switch, a second switch, a third switch, a first capacitor, and a controller controlling the ON and OFF switching of the second and third switches. The first terminal of the first switch is coupled to the input terminal of the switching converter, the second terminal is coupled to the first terminal of the second switch. The first terminal of the third switch is coupled to the second terminal of the first switch and the first terminal of the second switch. The first capacitor is coupled to the second terminal of the third switch and the controller to provide a power supply voltage for the controller. The switching converter charges the first capacitor through the first and third switches in a first working state, and transfers energy to a load through the first and second switches in a second working state.

摘要翻译： 快速启动开关转换器包括第一开关，第二开关，第三开关，第一电容器和控制第二和第三开关的导通和截止开关的控制器。 第一开关的第一端子耦合到开关转换器的输入端子，第二端子耦合到第二开关的第一端子。 第三开关的第一端子耦合到第一开关的第二端子和第二开关的第一端子。 第一电容器耦合到第三开关的第二端子和控制器以为控制器提供电源电压。 开关转换器在第一工作状态下通过第一和第三开关对第一电容器充电，并且在第二工作状态下通过第一和第二开关将能量传递到负载。

公开(公告)号：US09232606B2

公开(公告)日：2016-01-05

申请号：US13683904

申请日：2012-11-21

申请人： Naixing Kuang

发明人： Naixing Kuang

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B37/02 ,  H05B33/0815 ,  H05B33/0848 ,  Y02B20/346

摘要： A switch-mode power supply and associated control circuit for a light-emitting device are disclosed. The switch-mode power supply having a first switch which is turned ON or OFF by a control signal. The control circuit having an error amplifier, a minimum-off time control circuit and a logic circuit, wherein the error amplifier is configured to provide a compensation signal based on a dimming signal and a feedback signal. The minimum-off time control circuit is configured to provide a minimum-off time control signal to adjust a minimum-off time period of the first switch based on the compensation signal. The logic circuit is configured to provide the control signal based on the minimum-off time control signal.

摘要翻译： 公开了一种用于发光器件的开关电源和相关控制电路。 开关电源具有通过控制信号接通或断开的第一开关。 控制电路具有误差放大器，最小关断时间控制电路和逻辑电路，其中误差放大器被配置为基于调光信号和反馈信号提供补偿信号。 最小关断时间控制电路被配置为提供最小关闭时间控制信号，以基于补偿信号来调整第一开关的最小关闭时间段。 逻辑电路被配置为基于最小关断时间控制信号提供控制信号。

公开(公告)号：US20130020945A1

公开(公告)日：2013-01-24

申请号：US13550912

申请日：2012-07-17

申请人： Naixing Kuang ,  Haigang Cao ,  Zhijun Ye

发明人： Naixing Kuang ,  Haigang Cao ,  Zhijun Ye

IPC分类号： H05B37/02

CPC分类号： H05B33/0815 ,  H05B33/0845

摘要： A LED driver comprising: a power switch; a transformer comprising a primary winding coupled to the power switch, a secondary winding and a third winding; a current sense circuit configured to sense a current flowing through the power switch and generates a current sense signal; a zero cross detecting circuit configured to detect a current flowing through the secondary winding, and generates a zero cross detecting signal; a compensation circuit configured to compensate the current sense signal based on the current flowing through the third winding; a control circuit configured to receive the compensated current sense signal and the zero cross detecting signal, and wherein the control circuit generates a control signal to control the power switch.

摘要翻译： 一种LED驱动器，包括：电源开关; 变压器，包括耦合到所述电源开关的初级绕组，次级绕组和第三绕组; 电流感测电路，被配置为感测流过电源开关的电流并产生电流感测信号; 零交叉检测电路，被配置为检测流过次级绕组的电流，并产生零交叉检测信号; 补偿电路，被配置为基于流过所述第三绕组的电流补偿所述电流感测信号; 控制电路，被配置为接收经补偿的电流检测信号和过零检测信号，并且其中控制电路产生控制信号以控制电源开关。

公开(公告)号：US08164218B2

公开(公告)日：2012-04-24

申请号：US12505399

申请日：2009-07-17

申请人： Naixing Kuang ,  Lei Du ,  Junming Zhang ,  Yuancheng Ren

发明人： Naixing Kuang ,  Lei Du ,  Junming Zhang ,  Yuancheng Ren

IPC分类号： H02J1/10 ,  G05F1/577

CPC分类号： H02M3/158 ,  H02M2001/009 ,  Y10T307/414 ,  Y10T307/50

摘要： SIMO power converters and associated methods of control are disclosed herein. In one embodiment, a method of converting a signal input signal into multiple output signals includes supplying power to a plurality of output terminals based on a signal input signal, detecting a voltage at individual output terminals, determining an arithmetic relationship between the detected voltages of the output terminals, and adjusting the power supplied to the plurality of output terminals based at least in part on the determined arithmetic relationship between the detected voltages of the output terminals.

摘要翻译： 本文公开了SIMO功率转换器和相关联的控制方法。 在一个实施例中，将信号输入信号转换为多个输出信号的方法包括基于信号输入信号向多个输出端子供电，检测各个输出端子处的电压，确定检测到的电压的算术关系 输出端子，并且至少部分地基于所确定的输出端子的检测电压之间的算术关系来调整提供给多个输出端子的功率。

公开(公告)号：US20110285301A1

公开(公告)日：2011-11-24

申请号：US13110719

申请日：2011-05-18

申请人： Naixing Kuang ,  Lei Du ,  Junming Zhang ,  Yuancheng Ren

发明人： Naixing Kuang ,  Lei Du ,  Junming Zhang ,  Yuancheng Ren

IPC分类号： H05B37/02

CPC分类号： H05B33/0809 ,  H05B33/0845

摘要： Triac dimmer compatible switching mode power supplies used as LED drivers are disclosed herein. A PFC controller is configured in the switching mode power supplies. With the PFC controller, the current keeping the triac in the on-state is supplied by the DC/DC converter, and the LC resonance is reduced.

摘要翻译： 本文公开了用作LED驱动器的Triac调光器兼容的开关模式电源。 在开关模式电源中配置了PFC控制器。 使用PFC控制器，保持三端双向可控硅开关电流的电流由DC / DC转换器提供，LC谐振减小。

公开(公告)号：US08970122B2

公开(公告)日：2015-03-03

申请号：US13550912

申请日：2012-07-17

申请人： Naixing Kuang ,  Haigang Cao ,  Zhijun Ye

发明人： Naixing Kuang ,  Haigang Cao ,  Zhijun Ye

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0815 ,  H05B33/0845

摘要： A LED driver comprising: a power switch; a transformer comprising a primary winding coupled to the power switch, a secondary winding and a third winding; a current sense circuit configured to sense a current flowing through the power switch and generates a current sense signal; a zero cross detecting circuit configured to detect a current flowing through the secondary winding, and generates a zero cross detecting signal; a compensation circuit configured to compensate the current sense signal based on the current flowing through the third winding; a control circuit configured to receive the compensated current sense signal and the zero cross detecting signal, and wherein the control circuit generates a control signal to control the power switch.

摘要翻译： 一种LED驱动器，包括：电源开关; 变压器，包括耦合到所述电源开关的初级绕组，次级绕组和第三绕组; 电流感测电路，被配置为感测流过电源开关的电流并产生电流感测信号; 零交叉检测电路，被配置为检测流过次级绕组的电流，并产生零交叉检测信号; 补偿电路，被配置为基于流过所述第三绕组的电流补偿所述电流感测信号; 控制电路，被配置为接收经补偿的电流检测信号和过零检测信号，并且其中控制电路产生控制信号以控制电源开关。

公开(公告)号：US08604710B2

公开(公告)日：2013-12-10

申请号：US13224893

申请日：2011-09-02

申请人： Bo Yu ,  Yuancheng Ren ,  Lei Du ,  Naixing Kuang ,  Zhijiang Yang

发明人： Bo Yu ,  Yuancheng Ren ,  Lei Du ,  Naixing Kuang ,  Zhijiang Yang

IPC分类号： H05B37/02

CPC分类号： H05B33/0845 ,  H05B33/0815 ,  H05B41/3927 ,  Y02B20/346

摘要： The present disclosure discloses a multi-mode dimming circuit configurable to operate in a first dimming mode, a second dimming mode and a third dimming mode. The present disclosure also discloses separate dimming circuits for respectively realize the three dimming modes. In one embodiment the multi-mode dimming circuit may comprise a first input terminal, a second input terminal, a third input terminal, an output terminal, a resistive device, an oscillation circuit and a pulse width modulation (PWM) circuit. Users may flexibly configure the multi-mode dimming circuit to operate in one of the three different dimming modes by varying the external devices and/or signals coupled to each of the first, second and third input terminals.

摘要翻译： 本公开公开了一种多模式调光电路，其可配置为在第一调光模式，第二调光模式和第三调光模式中操作。 本公开还公开了用于分别实现三个调光模式的单独的调光电路。 在一个实施例中，多模式调光电路可以包括第一输入端，第二输入端，第三输入端，输出端，电阻器件，振荡电路和脉冲宽度调制（PWM）电路。 用户可以通过改变耦合到第一，第二和第三输入端子中的每一个的外部设备和/或信号来灵活地将多模式调光电路配置为以三种不同的调光模式之一工作。