公开(公告)号：US20090115386A1

公开(公告)日：2009-05-07

申请号：US12261725

申请日：2008-10-30

申请人： Nobuyuki Otaka

发明人： Nobuyuki Otaka

IPC分类号： G05F1/00

CPC分类号： H02M3/07

摘要： In a power supply circuit, a first switching transistor and a second switching transistor are serially connected between another-side terminal GND and a one-side terminal VCC of an input power supply, and a third switching transistor and a fourth switching transistor are serially connected between the one-side terminal VCC of the input power supply and a boosted output terminal OUT. A shift capacitor is provided between a connection point of the first and second switching transistors and a connection point of the third and fourth switching transistors, and a holding capacitor is connected to the boosted output terminal OUT. A back gate switching circuit for switching a voltage to be applied to the back gate is provided for the third switching transistor.

摘要翻译： 在电源电路中，第一开关晶体管和第二开关晶体管串联连接在输入电源的另一侧端子GND和单侧端子VCC之间，并且第三开关晶体管和第四开关晶体管串联连接 在输入电源的单侧端子VCC和升压的输出端子OUT之间。 在第一和第二开关晶体管的连接点和第三和第四开关晶体管的连接点之间提供一个移位电容器，并且保持电容器连接到升压的输出端子OUT。 为第三开关晶体管提供用于切换施加到背栅的电压的背栅极开关电路。

公开(公告)号：US20050045964A1

公开(公告)日：2005-03-03

申请号：US10924507

申请日：2004-08-24

申请人： Kazuo Henmi ,  Nobuyuki Otaka

发明人： Kazuo Henmi ,  Nobuyuki Otaka

IPC分类号： H01L27/04 ,  H01L21/822 ,  H01L27/02 ,  H01L27/06 ,  H01L27/092 ,  H01L27/10 ,  H02M3/07 ,  H03K5/02 ,  H01L29/76 ,  H01L29/94 ,  H01L31/062

CPC分类号： H01L27/0928 ,  H01L27/0214 ,  H01L27/0629 ,  H02M3/073

摘要： To an output of an NMOS having one end connected to a power source, a capacitor and a PMOS are connected. A capacitor is connected to the output of the PMOS. The NMOS and the PMOS are turned on alternately. A pulse is applied to other end of the capacitor which is connected to the output of the NMOS, to shift the output of the NMOS for boosting. Then, a back gate of the NMOS is connected, via a PMOS in an on state, to the power source. With this structure, the PMOS provides a resistor component when the output terminal short-circuits.

摘要翻译： 连接到电源的一端的NMOS的输出端连接有电容器和PMOS。 电容器连接到PMOS的输出端。 NMOS和PMOS交替接通。 将脉冲施加到连接到NMOS的输出的电容器的另一端，以移位NMOS的输出用于升压。 然后，NMOS的背栅经由导通状态的PMOS连接到电源。 利用这种结构，当输出端子短路时，PMOS提供一个电阻器组件。

公开(公告)号：US08554279B2

公开(公告)日：2013-10-08

申请号：US12269566

申请日：2008-11-12

申请人： Nobuyuki Otaka

发明人： Nobuyuki Otaka

IPC分类号： H04M1/00

CPC分类号： G09G3/3406 ,  G09G3/2011 ,  G09G3/2014

摘要： A boosting circuit unit supplies a boosting voltage to one terminal of a backlight. A boosting comparator compares a voltage applied to the other terminal of the backlight with a predetermined reference voltage value, and outputs a comparison result as a feedback signal reflecting the boosting voltage to the boosting circuit unit. An LED driver unit is connected to the other terminal of the backlight and supplies drive current to the backlight. An acquisition unit acquires a PWM signal, which is generated based on the content of a video signal and can be used to change the luminance of the backlight. An LPF unit outputs a time-averaged signal of the acquired PWM signal as a control signal to be supplied to the LED driver unit.

摘要翻译： 升压电路单元将升压电压提供给背光源的一个端子。 升压比较器将施加到背光源的另一端子的电压与预定参考电压值进行比较，并将作为反映升压电压的反馈信号的比较结果输出到升压电路单元。 LED驱动器单元连接到背光的另一端，并向背光提供驱动电流。 采集单元获取基于视频信号的内容生成的PWM信号，并且可以用于改变背光的亮度。 LPF单元输出所获取的PWM信号的时间平均信号作为要提供给LED驱动单元的控制信号。

公开(公告)号：US08279209B2

公开(公告)日：2012-10-02

申请号：US12269588

申请日：2008-11-12

申请人： Nobuyuki Otaka

发明人： Nobuyuki Otaka

IPC分类号： G09G5/00

CPC分类号： H05B33/0818 ,  H04M1/0216 ,  H04M1/22 ,  H04M19/04 ,  H04M19/048 ,  H04W52/027 ,  Y02B20/346 ,  Y02D70/00

摘要： A light-emitting element driving circuit is installed on a second substrate, which is connected via a signal line to a first substrate, on which is mounted a CPU configured to generate an LED drive control signal. The light-emitting element driving circuit includes a pulse generation unit configured to start and stop an operation based on the LED drive control signal and output an LED drive signal when the pulse generation unit is in an active state, an LED oscillator configured to supply a reference pulse signal to the pulse generation unit, and an LED driver unit configured to cause a light-emitting element to perform a flickering operation based on the LED drive signal.

摘要翻译： 发光元件驱动电路安装在通过信号线连接到第一基板的第二基板上，第一基板安装有CPU，该CPU被配置为生成LED驱动控制信号。 发光元件驱动电路包括：脉冲发生单元，被配置为当脉冲发生单元处于活动状态时基于LED驱动控制信号启动和停止操作，并输出LED驱动信号; LED振荡器，被配置为提供 参考脉冲信号到脉冲发生单元，以及LED驱动单元，被配置为使得发光元件基于LED驱动信号进行闪烁操作。

公开(公告)号：US07864553B2

公开(公告)日：2011-01-04

申请号：US12261725

申请日：2008-10-30

申请人： Nobuyuki Otaka

发明人： Nobuyuki Otaka

IPC分类号： H02M3/18

CPC分类号： H02M3/07

摘要： In a power supply circuit, a first switching transistor and a second switching transistor are serially connected between another-side terminal GND and a one-side terminal VCC of an input power supply, and a third switching transistor and a fourth switching transistor are serially connected between the one-side terminal VCC of the input power supply and a boosted output terminal OUT. A shift capacitor is provided between a connection point of the first and second switching transistors and a connection point of the third and fourth switching transistors, and a holding capacitor is connected to the boosted output terminal OUT. A back gate switching circuit for switching a voltage to be applied to the back gate is provided for the third switching transistor.

摘要翻译： 在电源电路中，第一开关晶体管和第二开关晶体管串联连接在输入电源的另一侧端子GND和单侧端子VCC之间，并且第三开关晶体管和第四开关晶体管串联连接 在输入电源的单侧端子VCC和升压的输出端子OUT之间。 在第一和第二开关晶体管的连接点和第三和第四开关晶体管的连接点之间提供一个移位电容器，并且保持电容器连接到升压的输出端子OUT。 为第三开关晶体管提供用于切换施加到背栅的电压的背栅极开关电路。

公开(公告)号：US07323753B2

公开(公告)日：2008-01-29

申请号：US10924507

申请日：2004-08-24

申请人： Kazuo Henmi ,  Nobuyuki Otaka

发明人： Kazuo Henmi ,  Nobuyuki Otaka

IPC分类号： H01L29/76 ,  H01L29/94 ,  H01L31/062 ,  H01L31/113 ,  H01L31/119

CPC分类号： H01L27/0928 ,  H01L27/0214 ,  H01L27/0629 ,  H02M3/073

摘要： To an output of an NMOS having one end connected to a power source, a capacitor and a PMOS are connected. A capacitor is connected to the output of the PMOS. The NMOS and the PMOS are turned on alternately. A pulse is applied to other end of the capacitor which is connected to the output of the NMOS, to shift the output of the NMOS for boosting. Then, a back gate of the NMOS is connected, via a PMOS in an on state, to the power source. With this structure, the PMOS provides a resistor component when the output terminal short-circuits.

摘要翻译： 连接到电源的一端的NMOS的输出端连接有电容器和PMOS。 电容器连接到PMOS的输出端。 NMOS和PMOS交替接通。 将脉冲施加到连接到NMOS的输出的电容器的另一端，以移位NMOS的输出用于升压。 然后，NMOS的背栅经由导通状态的PMOS连接到电源。 利用这种结构，当输出端子短路时，PMOS提供一个电阻器组件。

公开(公告)号：US20090137282A1

公开(公告)日：2009-05-28

申请号：US12269566

申请日：2008-11-12

申请人： Nobuyuki Otaka

发明人： Nobuyuki Otaka

IPC分类号： H04B1/38 ,  G09G5/00

CPC分类号： G09G3/3406 ,  G09G3/2011 ,  G09G3/2014

摘要： A boosting circuit unit supplies a boosting voltage to one terminal of a backlight. A boosting comparator compares a voltage applied to the other terminal of the backlight with a predetermined reference voltage value, and outputs a comparison result as a feedback signal reflecting the boosting voltage to the boosting circuit unit. An LED driver unit is connected to the other terminal of the backlight and supplies drive current to the backlight. An acquisition unit acquires a PWM signal, which is generated based on the content of a video signal and can be used to change the luminance of the backlight. An LPF unit outputs a time-averaged signal of the acquired PWM signal as a control signal to be supplied to the LED driver unit.

摘要翻译： 升压电路单元将升压电压提供给背光源的一个端子。 升压比较器将施加到背光源的另一端子的电压与预定参考电压值进行比较，并将作为反映升压电压的反馈信号的比较结果输出到升压电路单元。 LED驱动器单元连接到背光的另一端，并向背光提供驱动电流。 采集单元获取基于视频信号的内容生成的PWM信号，并且可以用于改变背光的亮度。 LPF单元输出所获取的PWM信号的时间平均信号作为要提供给LED驱动单元的控制信号。

公开(公告)号：US20090135168A1

公开(公告)日：2009-05-28

申请号：US12269588

申请日：2008-11-12

申请人： Nobuyuki Otaka

发明人： Nobuyuki Otaka

IPC分类号： G09G5/00 ,  H05B37/02

CPC分类号： H05B33/0818 ,  H04M1/0216 ,  H04M1/22 ,  H04M19/04 ,  H04M19/048 ,  H04W52/027 ,  Y02B20/346 ,  Y02D70/00

摘要： A light-emitting element driving circuit is installed on a second substrate, which is connected via a signal line to a first substrate, on which is mounted a CPU configured to generate an LED drive control signal. The light-emitting element driving circuit includes a pulse generation unit configured to start and stop an operation based on the LED drive control signal and output an LED drive signal when the pulse generation unit is in an active state, an LED oscillator configured to supply a reference pulse signal to the pulse generation unit, and an LED driver unit configured to cause a light-emitting element to perform a flickering operation based on the LED drive signal.

摘要翻译： 发光元件驱动电路安装在通过信号线连接到第一基板的第二基板上，第一基板安装有CPU，该CPU被配置为生成LED驱动控制信号。 发光元件驱动电路包括：脉冲发生单元，被配置为当脉冲发生单元处于活动状态时基于LED驱动控制信号启动和停止操作，并输出LED驱动信号; LED振荡器，被配置为提供 参考脉冲信号到脉冲发生单元，以及LED驱动单元，被配置为使得发光元件基于LED驱动信号进行闪烁操作。