公开(公告)号：US20130033105A1

公开(公告)日：2013-02-07

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： H02J4/00

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.

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：US08648630B2

公开(公告)日：2014-02-11

申请号：US13297085

申请日：2011-11-15

申请人： Jiqing Yang ,  Meng Li ,  Qiang Luo ,  Lieyi Fang

发明人： Jiqing Yang ,  Meng Li ,  Qiang Luo ,  Lieyi Fang

IPC分类号： H03B1/00 ,  H03K3/00

CPC分类号： H03K17/302 ,  H03K17/063 ,  H03K2217/0081

摘要： System and method are provided for driving a transistor. The system includes a floating-voltage generator, a first driving circuit, and a second driving circuit. The floating-voltage generator is configured to receive a first bias voltage and generate a floating voltage, the floating-voltage generator being further configured to change the floating voltage if the first bias voltage changes and to maintain the floating voltage to be lower than the first bias voltage by a first predetermined value in magnitude. The first driving circuit is configured to receive an input signal, the first bias voltage and the floating voltage. The second driving circuit is configured to receive the input signal, a second bias voltage and a third bias voltage, the first driving circuit and the second driving circuit being configured to generate an output signal to drive a transistor.

摘要翻译： 提供了用于驱动晶体管的系统和方法。 该系统包括浮置电压发生器，第一驱动电路和第二驱动电路。 浮置电压发生器被配置为接收第一偏置电压并产生浮置电压，该浮动电压发生器进一步被配置为如果第一偏置电压改变则改变浮动电压，并且将浮置电压保持为低于第一偏置电压 偏置电压大小为第一预定值。 第一驱动电路被配置为接收输入信号，第一偏置电压和浮置电压。 第二驱动电路被配置为接收输入信号，第二偏置电压和第三偏置电压，第一驱动电路和第二驱动电路被配置为产生驱动晶体管的输出信号。

公开(公告)号：US20130093474A1

公开(公告)日：2013-04-18

申请号：US13297085

申请日：2011-11-15

申请人： Jiqing Yang ,  Meng Li ,  Qiang Luo ,  Lieyi Fang

发明人： Jiqing Yang ,  Meng Li ,  Qiang Luo ,  Lieyi Fang

IPC分类号： H03K3/00

CPC分类号： H03K17/302 ,  H03K17/063 ,  H03K2217/0081

摘要： System and method are provided for driving a transistor. The system includes a floating-voltage generator, a first driving circuit, and a second driving circuit. The floating-voltage generator is configured to receive a first bias voltage and generate a floating voltage, the floating-voltage generator being further configured to change the floating voltage if the first bias voltage changes and to maintain the floating voltage to be lower than the first bias voltage by a first predetermined value in magnitude. The first driving circuit is configured to receive an input signal, the first bias voltage and the floating voltage. The second driving circuit is configured to receive the input signal, a second bias voltage and a third bias voltage, the first driving circuit and the second driving circuit being configured to generate an output signal to drive a transistor.

摘要翻译： 提供了用于驱动晶体管的系统和方法。 该系统包括浮置电压发生器，第一驱动电路和第二驱动电路。 浮置电压发生器被配置为接收第一偏置电压并产生浮置电压，该浮动电压发生器进一步被配置为如果第一偏置电压改变则改变浮动电压，并且将浮置电压保持为低于第一偏置电压 偏置电压大小为第一预定值。 第一驱动电路被配置为接收输入信号，第一偏置电压和浮置电压。 第二驱动电路被配置为接收输入信号，第二偏置电压和第三偏置电压，第一驱动电路和第二驱动电路被配置为产生驱动晶体管的输出信号。

公开(公告)号：US08618885B2

公开(公告)日：2013-12-31

申请号：US13081370

申请日：2011-04-06

申请人： Liqiang Zhu ,  Lieyi Fang

发明人： Liqiang Zhu ,  Lieyi Fang

IPC分类号： H03L7/18

CPC分类号： H03K3/01 ,  H03K5/1565 ,  H03K7/08 ,  H03M1/56 ,  H05B33/0815

摘要： Oscillator system and method thereof. The oscillator system includes a first voltage-to-current converter configured to receive a first voltage and generate a first current based on at least information associated with the first voltage, and a second voltage-to-current converter configured to receive a second voltage and generate a second current based on at least information associated with the second voltage. Additionally, the oscillator system further includes a current-mode N-bit digital-to-analog converter configured to receive at least the second current and a first clock signal and to generate a third current based on at least information associated with the second current and the first clock signal. N is a first integer. The first clock signal is associated with a first clock frequency corresponding to a first clock period. Moreover, the oscillator system further includes a current comparator coupled to the first voltage-to-current converter and the current-mode N-bit digital-to-analog converter.

摘要翻译： 振荡器系统及其方法。 振荡器系统包括第一电压 - 电流转换器，其被配置为接收第一电压并基于至少与第一电压相关联的信息产生第一电流，以及第二电压 - 电流转换器，被配置为接收第二电压和 至少基于与第二电压相关联的信息产生第二电流。 此外，振荡器系统还包括电流模式N位数模转换器，其被配置为至少接收第二电流和第一时钟信号，并且至少基于与第二电流相关联的信息产生第三电流，以及 第一个时钟信号。 N是第一个整数。 第一时钟信号与对应于第一时钟周期的第一时钟频率相关联。 此外，振荡器系统还包括耦合到第一电压 - 电流转换器和电流模式N位数模转换器的电流比较器。

公开(公告)号：US08598806B2

公开(公告)日：2013-12-03

申请号：US13335092

申请日：2011-12-22

申请人： Miao Li ,  Liqiang Zhu ,  Jun Zhou ,  Lieyi Fang

发明人： Miao Li ,  Liqiang Zhu ,  Jun Zhou ,  Lieyi Fang

IPC分类号： H05B41/36

CPC分类号： H05B41/282

摘要： System and method for driving one or more cold-cathode fluorescent lamps. For example, the method includes generating at least one drive signal associated with a signal frequency, the signal frequency being equal to a first predetermined frequency, receiving a current-sensing signal, the current-sensing signal being associated with a lamp current for the one or more cold-cathode fluorescent lamps in response to at least the first predetermined frequency, and determining whether the current-sensing signal is larger than a first threshold in magnitude, the current-sensing signal being related to the first predetermined frequency. Additionally, the method includes, if the current-sensing signal related to the first predetermined frequency is determined to be larger than the first threshold in magnitude at anytime during a first period of time, changing the signal frequency from the first predetermined frequency to a second predetermined frequency, the second predetermined frequency being different from the first predetermined frequency.

摘要翻译： 用于驱动一个或多个冷阴极荧光灯的系统和方法。 例如，该方法包括产生与信号频率相关联的至少一个驱动信号，信号频率等于第一预定频率，接收电流感测信号，该电流感测信号与一个灯电流相关联 或更多个冷阴极荧光灯，并且确定电流感测信号是否大于第一阈值，电流感测信号与第一预定频率相关。 另外，如果在第一时间段内的任何时间将与第一预定频率相关的电流感测信号的幅度确定为大于第一阈值，则将该信号频率从第一预定频率改变为第二阈值 预定频率，第二预定频率不同于第一预定频率。

公开(公告)号：US20100315148A1

公开(公告)日：2010-12-16

申请号：US12537964

申请日：2009-08-07

申请人： Liqiang Zhu ,  Lieyi Fang

发明人： Liqiang Zhu ,  Lieyi Fang

IPC分类号： H03K3/00

CPC分类号： H03K3/01 ,  H03K5/1565 ,  H03K7/08 ,  H03M1/56 ,  H05B33/0815

摘要： Oscillator system and method thereof. The oscillator system includes a first voltage-to-current converter configured to receive a first voltage and generate a first current based on at least information associated with the first voltage, and a second voltage-to-current converter configured to receive a second voltage and generate a second current based on at least information associated with the second voltage. Additionally, the oscillator system further includes a current-mode N-bit digital-to-analog converter configured to receive at least the second current and a first clock signal and to generate a third current based on at least information associated with the second current and the first clock signal. N is a first integer. The first clock signal is associated with a first clock frequency corresponding to a first clock period. Moreover, the oscillator system further includes a current comparator coupled to the first voltage-to-current converter and the current-mode N-bit digital-to-analog converter.

摘要翻译： 振荡器系统及其方法。 振荡器系统包括第一电压 - 电流转换器，其被配置为接收第一电压并基于至少与第一电压相关联的信息产生第一电流，以及第二电压 - 电流转换器，被配置为接收第二电压和 至少基于与第二电压相关联的信息生成第二电流。 此外，振荡器系统还包括电流模式N位数模转换器，其被配置为至少接收第二电流和第一时钟信号，并且至少基于与第二电流相关联的信息产生第三电流，以及 第一个时钟信号。 N是第一个整数。 第一时钟信号与对应于第一时钟周期的第一时钟频率相关联。 此外，振荡器系统还包括耦合到第一电压 - 电流转换器和电流模式N位数模转换器的电流比较器。

公开(公告)号：US07391169B2

公开(公告)日：2008-06-24

申请号：US11357350

申请日：2006-02-17

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： H05B37/02 ,  H02M11/00

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：US07944314B2

公开(公告)日：2011-05-17

申请号：US12537964

申请日：2009-08-07

申请人： Liqiang Zhu ,  Lieyi Fang

发明人： Liqiang Zhu ,  Lieyi Fang

IPC分类号： H03L7/00

CPC分类号： H03K3/01 ,  H03K5/1565 ,  H03K7/08 ,  H03M1/56 ,  H05B33/0815

摘要： Oscillator system and method thereof. The oscillator system includes a first voltage-to-current converter configured to receive a first voltage and generate a first current based on at least information associated with the first voltage, and a second voltage-to-current converter configured to receive a second voltage and generate a second current based on at least information associated with the second voltage. Additionally, the oscillator system further includes a current-mode N-bit digital-to-analog converter configured to receive at least the second current and a first clock signal and to generate a third current based on at least information associated with the second current and the first clock signal. N is a first integer. The first clock signal is associated with a first clock frequency corresponding to a first clock period. Moreover, the oscillator system further includes a current comparator coupled to the first voltage-to-current converter and the current-mode N-bit digital-to-analog converter.

摘要翻译： 振荡器系统及其方法。 振荡器系统包括第一电压 - 电流转换器，其被配置为接收第一电压并基于至少与第一电压相关联的信息产生第一电流，以及第二电压 - 电流转换器，被配置为接收第二电压和 至少基于与第二电压相关联的信息生成第二电流。 此外，振荡器系统还包括电流模式N位数模转换器，其被配置为至少接收第二电流和第一时钟信号，并且至少基于与第二电流相关联的信息产生第三电流，以及 第一个时钟信号。 N是第一个整数。 第一时钟信号与对应于第一时钟周期的第一时钟频率相关联。 此外，振荡器系统还包括耦合到第一电压 - 电流转换器和电流模式N位数模转换器的电流比较器。

公开(公告)号：US07781984B2

公开(公告)日：2010-08-24

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： H05B37/02

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。