公开(公告)号：US20100219802A1

公开(公告)日：2010-09-02

申请号：US12409287

申请日：2009-03-23

申请人： Yuan Lin ,  Jun Ye ,  Lieyi Fang

发明人： Yuan Lin ,  Jun Ye ,  Lieyi Fang

IPC分类号： G05F1/10

CPC分类号： H02M3/33507 ,  H02M2001/0022 ,  Y02B70/1433

摘要： Switch-mode power conversion system and method thereof. The switch-mode power conversion system includes a primary winding configured to receive an input voltage, and a secondary winding coupled to the primary winding and configured to, with one or more other components, generate an output signal. Additionally, the switch-mode power conversion system includes a feedback component configured to receive the output signal and generate a feedback signal based on at least information associated with the output signal, and a voltage detector configured to receive the input voltage and output a detection signal. Moreover, the switch-mode power conversion system includes a mode controller configured to receive the detection signal and the feedback signal and generate a switch signal based on at least information associated with the detection signal and the feedback signal, and a switch configured to receive the switch signal and affect a first current flowing through the primary winding.

摘要翻译： 开关电源转换系统及其方法。 开关模式功率转换系统包括被配置为接收输入电压的初级绕组和耦合到初级绕组的次级绕组，并且被配置成与一个或多个其他部件一起产生输出信号。 另外，开关模式功率转换系统包括被配置为接收输出信号并基于至少与输出信号相关联的信息产生反馈信号的反馈分量，以及被配置为接收输入电压并输出检测信号的电压检测器 。 此外，开关模式电力转换系统包括模式控制器，其被配置为接收检测信号和反馈信号，并且至少基于与检测信号和反馈信号相关联的信息产生开关信号，以及开关，被配置为接收 开关信号并影响流经初级绕组的第一电流。

公开(公告)号：US20090206814A1

公开(公告)日：2009-08-20

申请号：US12123289

申请日：2008-05-19

申请人： Xiuhong Zhang ,  Zhen Zhu ,  Yaming Cao ,  Lieyi Fang

发明人： Xiuhong Zhang ,  Zhen Zhu ,  Yaming Cao ,  Lieyi Fang

IPC分类号： G05F1/00

CPC分类号： H02M3/33507 ,  H02M2001/0032 ,  Y02B70/16

摘要： Method and system for efficient power control with multiple modes. According to an embodiment, the present invention provides a power system with selectable power modes. The power system includes a first terminal for outputting energy, and the first terminal is electrically coupled to a load. The system also includes a pulse-frequency modulation (PFM) component that is configured to adjust a pulse frequency based on the load. The system additionally includes a pulse-width modulation (PWM) component that is configured to adjust a pulse width based on the load. The system further includes a switch that is electrically coupled to the first terminal. Also, the system includes a control component, the control component being configured to provide a control signal that is capable of causing the switch to be turned on or off. The control signal is associated with an output of the PWM component and the pulse width if an output is greater than a predetermined value. The control signal is associated with an output of the PFM component and the pulse frequency if an output is lower than a predetermined value.

摘要翻译： 多种模式的高效功率控制方法和系统。 根据实施例，本发明提供了一种具有可选功率模式的电力系统。 电力系统包括用于输出能量的第一端子，并且第一端子电耦合到负载。 该系统还包括脉冲频率调制（PFM）组件，其被配置为基于负载来调节脉冲频率。 该系统还包括脉冲宽度调制（PWM）组件，其被配置为基于负载调整脉冲宽度。 该系统还包括电耦合到第一端子的开关。 此外，该系统包括控制部件，该控制部件被配置为提供能够使开关导通或断开的控制信号。 如果输出大于预定值，则控制信号与PWM分量的输出和脉冲宽度相关联。 如果输出低于预定值，则控制信号与PFM分量的输出和脉冲频率相关联。

公开(公告)号：US20080309245A1

公开(公告)日：2008-12-18

申请号：US12123345

申请日：2008-05-19

申请人： Jianfeng Huang ,  Liqiang Zhu ,  Zhen Zhu ,  Lieyi Fang

发明人： Jianfeng Huang ,  Liqiang Zhu ,  Zhen Zhu ,  Lieyi Fang

IPC分类号： H05B41/36 ,  G05F3/16

CPC分类号： H05B41/39 ,  H05B41/282

摘要： System and method for processing analog voltage for cold-cathode fluorescent lamp. The system includes a voltage-to-current converter configured to receive an input analog voltage signal and generate a first current signal, and a current processing component configured to receive the first current signal and a predetermined current and generate a second current signal. Additionally, the system includes a current-to-voltage converter configured to receive the second current signal and generate an output analog voltage signal, and a dimming controller configured to receive the output analog voltage signal and generate a control signal for driving at least a cold-cathode fluorescent lamp. The voltage-to-current converter, the current processing component, and the current-to-voltage converter are configured to be biased between a first power supply voltage level and a second power supply voltage level.

摘要翻译： 冷阴极荧光灯模拟电压处理系统及方法。 该系统包括被配置为接收输入模拟电压信号并产生第一电流信号的电压 - 电流转换器，以及被配置为接收第一电流信号和预定电流并产生第二电流信号的电流处理部件。 另外，该系统包括被配置为接收第二电流信号并产生输出模拟电压信号的电流 - 电压转换器，以及调光控制器，被配置为接收输出模拟电压信号并产生用于至少驱动冷的控制信号 阴极荧光灯。 电压 - 电流转换器，当前处理组件和电流 - 电压转换器被配置为在第一电源电压电平和第二电源电压电平之间被偏置。

公开(公告)号：US10299322B2

公开(公告)日：2019-05-21

申请号：US13344880

申请日：2012-01-06

申请人： Jun Zhou ,  Yunchao Zhang ,  Lieyi Fang

发明人： Jun Zhou ,  Yunchao Zhang ,  Lieyi Fang

IPC分类号： H05B33/08

摘要： System and method for regulating one or more currents. The system includes a system controller, an inductor, a first resistor, a switch and a first diode. The system controller includes a first controller terminal and a ground terminal, the system controller being configured to output a drive signal at the first controller terminal. The inductor includes a first inductor terminal and a second inductor terminal, the first inductor terminal being coupled to the ground terminal, the second inductor terminal being coupled to one or more light emitting diodes. The first resistor includes a first resistor terminal and a second resistor terminal, the first resistor terminal being coupled to the ground terminal. The switch is configured to receive the drive signal and coupled to the second resistor terminal. The first diode includes a first diode terminal and a second diode terminal and coupled to the first resistor.

公开(公告)号：US09374019B2

公开(公告)日：2016-06-21

申请号：US13367097

申请日：2012-02-06

申请人： Miao Li ,  Lieyi Fang

发明人： Miao Li ,  Lieyi Fang

IPC分类号： H02J7/00 ,  H02M7/219

CPC分类号： H02J7/0036 ,  H02J7/0047 ,  H02J7/0063 ,  H02J7/345 ,  H02M7/219

摘要： System and method for discharging a capacitor. An example system includes a signal detector and a discharge control component. The signal detector is configured to receive an input signal and generate a detection signal based on at least information associated with the input signal, the input signal being associated with an alternate current signal received by a capacitor including a first capacitor terminal and a second capacitor terminal. The discharge control component configured to receive at least the detection signal and generate an output signal to discharge the capacitor if the detection signal satisfies one or more conditions.

摘要翻译： 用于放电电容器的系统和方法。 示例系统包括信号检测器和放电控制部件。 信号检测器被配置为接收输入信号并基于至少与输入信号相关联的信息产生检测信号，该输入信号与由包括第一电容器端子和第二电容器端子的电容器接收的交流电流信号相关联 。 所述放电控制部件被配置为如果所述检测信号满足一个或多个条件，则至少接收所述检测信号并产生输出信号以放电所述电容器。

公开(公告)号：US09000681B2

公开(公告)日：2015-04-07

申请号：US13215000

申请日：2011-08-22

申请人： Jiqing Yang ,  Meng Li ,  Liqiang Zhu ,  Lieyi Fang

发明人： Jiqing Yang ,  Meng Li ,  Liqiang Zhu ,  Lieyi Fang

IPC分类号： H05B37/02 ,  G09G3/32

CPC分类号： H05B33/0812 ,  G09G3/32 ,  H05B33/0815 ,  H05B33/0827 ,  H05B33/0842 ,  H05B37/02 ,  Y10T307/406

摘要： System and method are provided for generating a plurality of channel currents. The system includes a channel reference generator configured to receive a first reference current and generate at least a first channel driving current and a second channel driving current, a first channel current divider configured to receive the first channel driving current and generate a first input current, a second input current, and a third input current, a second channel current divider configured to receive the second channel driving current and generate a fourth input current, a fifth input current, and a sixth input current, a first channel driver configured to receive the first input current, the second input current, and the third input current and generate a first channel current, and a second channel driver configured to receive the fourth input current, the fifth input current, and the sixth input current and generate a second channel current.

摘要翻译： 提供了用于产生多个通道电流的系统和方法。 该系统包括：通道参考发生器，被配置为接收第一参考电流并产生至少第一通道驱动电流和第二通道驱动电流;第一通道电流分配器，被配置为接收第一通道驱动电流并产生第一输入电流， 第二输入电流和第三输入电流，第二通道电流分配器，被配置为接收第二通道驱动电流并产生第四输入电流，第五输入电流和第六输入电流;第一通道驱动器，被配置为接收 第一输入电流，第二输入电流和第三输入电流，并产生第一通道电流;以及第二通道驱动器，被配置为接收第四输入电流，第五输入电流和第六输入电流，并产生第二通道电流 。

公开(公告)号：US08981832B2

公开(公告)日：2015-03-17

申请号：US13273061

申请日：2011-10-13

申请人： Tingzhi Yuan ,  Yunchao Zhang ,  Zhiqiang Sun ,  Lieyi Fang

发明人： Tingzhi Yuan ,  Yunchao Zhang ,  Zhiqiang Sun ,  Lieyi Fang

IPC分类号： G06G7/19 ,  H04R3/04

CPC分类号： H03F1/3205 ,  H03F3/183 ,  H03F2200/03 ,  H03F2201/3215 ,  H04R3/04 ,  H04R2430/01

摘要： System and method for integrating an input signal to generate an output signal. The system includes a first integrator configured to receive the input signal and generate an integrated signal based on at least information associated with the input signal, a second integrator configured to receive the integrated signal and generate the output signal based on at least information associated with the integrated signal, and a compensation capacitor coupled to the first integrator and the second integrator. The first integrator includes a first integration capacitor and a first operational amplifier including a first input terminal and a first output terminal, the first integration capacitor being coupled between the first input terminal and the first output terminal. The second integrator includes a second integration capacitor and a second operational amplifier including a second input terminal and a second output terminal.

摘要翻译： 用于对输入信号进行积分以产生输出信号的系统和方法。 该系统包括第一积分器，其被配置为接收输入信号并基于至少与输入信号相关联的信息产生积分信号;第二积分器，被配置为接收集成信号并基于至少与信号相关联的信息生成输出信号 集成信号和耦合到第一积分器和第二积分器的补偿电容器。 第一积分器包括第一积分电容器和包括第一输入端子和第一输出端子的第一运算放大器，第一积分电容器耦合在第一输入端子和第一输出端子之间。 第二积分器包括第二积分电容器和包括第二输入端子和第二输出端子的第二运算放大器。

公开(公告)号：US08953342B2

公开(公告)日：2015-02-10

申请号：US13466808

申请日：2012-05-08

申请人： Lieyi Fang

发明人： Lieyi Fang

IPC分类号： H02M3/335 ,  H02M1/00

CPC分类号： H02M3/33515 ,  H02M3/33507 ,  H02M2001/0032 ,  Y02B70/16

摘要： System and method for regulating a power conversion system. A system controller for regulating a power conversion system includes a first controller terminal and a second controller terminal. The system controller is configured to receive at least an input signal at the first controller terminal, and generate a gate drive signal at the second controller terminal based on at least information associated with the input signal to turn on or off a transistor in order to affect a current associated with a secondary winding of the power conversion system. The system controller is further configured to, if the input signal is larger than a first threshold, generate the gate drive signal at a first logic level to turn off the transistor.

摘要翻译： 用于调节电力转换系统的系统和方法。 用于调节功率转换系统的系统控制器包括第一控制器端子和第二控制器端子。 所述系统控制器被配置为在所述第一控制器终端处接收至少一个输入信号，并且至少基于与所述输入信号相关联的信息，在所述第二控制器端产生栅极驱动信号以导通或关闭晶体管，以便影响 与电力转换系统的次级绕组相关联的电流。 系统控制器还被配置为如果输入信号大于第一阈值，则以第一逻辑电平产生栅极驱动信号以截止晶体管。

公开(公告)号：US08941324B2

公开(公告)日：2015-01-27

申请号：US13105780

申请日：2011-05-11

申请人： Jun Zhou ,  Zhongliang Xiong ,  Miao Li ,  Yaming Cao ,  Qiang Luo ,  Lieyi Fang

发明人： Jun Zhou ,  Zhongliang Xiong ,  Miao Li ,  Yaming Cao ,  Qiang Luo ,  Lieyi Fang

IPC分类号： H05B37/02 ,  H05B33/08

CPC分类号： H05B33/0845 ,  H05B33/0815 ,  H05B33/0851 ,  H05B37/02

摘要： System and method for dimming control. The system includes a system controller including a first controller terminal and a second controller terminal, a transistor including a first transistor terminal, a second transistor terminal and a third transistor terminal, and a resistor including a first resistor terminal and a second resistor terminal. The system controller is configured to generate a first signal at the first controller terminal based on an input signal and to generate a second signal at the second controller terminal based on the first signal. The first transistor terminal is coupled to the second controller terminal. The first resistor terminal is coupled to the second transistor terminal. The second resistor terminal is coupled to the third transistor terminal. The transistor is configured to receive the second signal at the first transistor terminal and to change between two conditions in response to the second signal.

摘要翻译： 调光控制系统及方法。 该系统包括具有第一控制器端子和第二控制器端子的系统控制器，包括第一晶体管端子，第二晶体管端子和第三晶体管端子的晶体管，以及包括第一电阻端子和第二电阻端子的电阻器。 系统控制器被配置为基于输入信号在第一控制器终端产生第一信号，并且基于第一信号在第二控制器终端产生第二信号。 第一晶体管端子耦合到第二控制器端子。 第一电阻端子耦合到第二晶体管端子。 第二电阻端子耦合到第三晶体管端子。 晶体管被配置为在第一晶体管端子处接收第二信号并响应于第二信号在两个条件之间变化。

公开(公告)号：US08837175B2

公开(公告)日：2014-09-16

申请号：US13528494

申请日：2012-06-20

申请人： Lieyi Fang

发明人： Lieyi Fang

IPC分类号： H02M3/335

CPC分类号： H02M3/33507 ,  H02M2001/0022

摘要： Switching-mode power conversion system and method thereof. The system includes a primary winding configured to receive an input voltage and a secondary winding coupled to the primary winding. Additionally, the system includes a compensation component configured to receive the input voltage and generate at least a clock signal based on at least information associated with the input voltage, and a signal generator configured to receive at least the clock signal and generate at least a control signal based on at least information associated with the clock signal. Moreover, the system includes a gate driver configured to receive at least the control signal and generate a drive signal based on at least information associated with the control signal, and a first switch configured to receive the drive signal and affect a first current flowing through the primary winding.

摘要翻译： 开关电源转换系统及其方法。 该系统包括被配置为接收输入电压的初级绕组和耦合到初级绕组的次级绕组。 另外，该系统包括被配置为接收输入电压并且至少基于至少与输入电压相关联的信息产生时钟信号的补偿组件，以及被配置为至少接收时钟信号并且至少产生控制的信号发生器 至少基于与时钟信号相关联的信息的信号。 此外，该系统包括栅极驱动器，该栅极驱动器被配置为至少接收控制信号并且至少基于与控制信号相关联的信息产生驱动信号，以及第一开关，被配置为接收驱动信号并影响流经 初级绕组。