公开(公告)号：US20080079410A1

公开(公告)日：2008-04-03

申请号：US11902089

申请日：2007-09-19

申请人： Takuya Ishii ,  Mikio Motomori ,  Kazuhito Kimura ,  Yoichi Deguchi ,  Satoshi Wada ,  Yoshihisa Minami

发明人： Takuya Ishii ,  Mikio Motomori ,  Kazuhito Kimura ,  Yoichi Deguchi ,  Satoshi Wada ,  Yoshihisa Minami

IPC分类号： G05F1/575 ,  G05F1/618

CPC分类号： G05F1/575

摘要： A power supply device includes an inductor controlled by switching to be charged or discharged such that a DC input voltage is boosted and a capacitor which smoothes the boosted voltage to generate a DC output voltage. Specifically, the power supply device further includes a transistor connected between the inductor and the capacitor to carry out a rectification function; an output voltage determination circuit which refers to the DC input voltage and the DC output voltage to determine the level of these voltages; and a current control circuit which controls a current flowing through the transistor such that the current has a predetermined value when the output voltage determination circuit determines that the DC output voltage is lower than the DC input voltage.

摘要翻译： 电源装置包括通过切换进行充电或放电控制的电感器，使得DC输入电压升压，以及电容器，其使升压电压平滑以产生DC输出电压。 具体地，电源装置还包括连接在电感器和电容器之间的晶体管，以实现整流功能; 输出电压确定电路，其参考DC输入电压和DC输出电压以确定这些电压的电平; 以及电流控制电路，其控制流过所述晶体管的电流，使得当所述输出电压确定电路确定所述DC输出电压低于所述DC输入电压时，所述电流具有预定值。

公开(公告)号：US07852059B2

公开(公告)日：2010-12-14

申请号：US11902089

申请日：2007-09-19

申请人： Takuya Ishii ,  Mikio Motomori ,  Kazuhito Kimura ,  Yoichi Deguchi ,  Satoshi Wada ,  Yoshihisa Minami

发明人： Takuya Ishii ,  Mikio Motomori ,  Kazuhito Kimura ,  Yoichi Deguchi ,  Satoshi Wada ,  Yoshihisa Minami

IPC分类号： G05F1/40

CPC分类号： G05F1/575

摘要： A power supply device includes an inductor controlled by switching to be charged or discharged such that a DC input voltage is boosted and a capacitor which smoothes the boosted voltage to generate a DC output voltage. Specifically, the power supply device further includes a transistor connected between the inductor and the capacitor to carry out a rectification function; an output voltage determination circuit which refers to the DC input voltage and the DC output voltage to determine the level of these voltages; and a current control circuit which controls a current flowing through the transistor such that the current has a predetermined value when the output voltage determination circuit determines that the DC output voltage is lower than the DC input voltage.

摘要翻译： 电源装置包括通过切换进行充电或放电控制的电感器，使得DC输入电压升压，以及电容器，其使升压电压平滑以产生DC输出电压。 具体地，电源装置还包括连接在电感器和电容器之间的晶体管，以实现整流功能; 输出电压确定电路，其参考DC输入电压和DC输出电压以确定这些电压的电平; 以及电流控制电路，其控制流过所述晶体管的电流，使得当所述输出电压确定电路确定所述DC输出电压低于所述DC输入电压时，所述电流具有预定值。

公开(公告)号：US20080074158A1

公开(公告)日：2008-03-27

申请号：US11898701

申请日：2007-09-14

申请人： Takashi Ryu ,  Takuya Ishii ,  Mikio Motomori ,  Kazuhito Kimura ,  Satoshi Wada ,  Rumi Nakai

发明人： Takashi Ryu ,  Takuya Ishii ,  Mikio Motomori ,  Kazuhito Kimura ,  Satoshi Wada ,  Rumi Nakai

IPC分类号： H03L7/00

CPC分类号： H02M1/36 ,  Y10S323/901

摘要： A step-up power supply device includes: a step-up converter; a startup circuit which controls the on/off operation of a switch element of the step-up converter when an output voltage of the device is smaller than a reference voltage; and a control circuit which operates in substitution for the startup circuit when the output voltage is higher than the reference voltage to control the on/off operation of the switch element such that the output voltage reaches a target value. The startup circuit includes an oscillation circuit for generating a pulse signal which has a predetermined on/off ratio, a current comparison circuit for comparing a current of the switch element with a predetermined restriction value, and a drive circuit for generating a drive signal based on which the switch element is turned on/off, the drive signal being generated from the pulse signal to turn on the switch element, and the drive signal being generated from the output of the current comparison circuit or the pulse signal to turn off the switch element.

摘要翻译： 升压电源装置包括：升压转换器; 启动电路，当所述器件的输出电压小于参考电压时，控制所述升压转换器的开关元件的接通/断开操作; 以及控制电路，其在输出电压高于基准电压时代替启动电路，以控制开关元件的导通/截止操作，使得输出电压达到目标值。 启动电路包括用于产生具有预定的导通/关断比的脉冲信号的振荡电路，用于将开关元件的电流与预定限制值进行比较的电流比较电路，以及用于产生基于 所述开关元件被接通/断开，所述驱动信号从所述脉冲信号产生，以接通所述开关元件，并且所述驱动信号是从所述当前比较电路的输出或所述脉冲信号产生的，以将所述开关元件 。

公开(公告)号：US07825646B2

公开(公告)日：2010-11-02

申请号：US11905399

申请日：2007-09-28

申请人： Takuya Ishii ,  Mikio Motomori ,  Junichi Morita ,  Takashi Ryu ,  Masaaki Koto ,  Makoto Ishimaru ,  Kazuhito Kimura ,  Satoshi Wada

发明人： Takuya Ishii ,  Mikio Motomori ,  Junichi Morita ,  Takashi Ryu ,  Masaaki Koto ,  Makoto Ishimaru ,  Kazuhito Kimura ,  Satoshi Wada

IPC分类号： G05F1/40

CPC分类号： H02M3/156

摘要： The present invention provides a current-mode control step-up converter capable of reducing the minimum duty ratio to a sufficiently small value and facilitating the setting of the maximum duty ratio. The step-up converter comprises a current detector 9 for generating a current detection signal Vc corresponding to the current of a rectifier 4; an error amplifier 8 for generating an error signal Ve corresponding to an output DC voltage Vo; and a control circuit 10 for turning ON/OFF the main switch 3 on the basis of the current detection signal Vc and the error signal Ve. The control circuit 10 comprises a comparator 11 and a timer circuit 12. With this configuration, the ON time of the main switch 3 is set at a predetermined value, and the valley value of an inductor current changing in a triangular waveform is controlled. Hence, the OFF time of the main switch is adjusted to stabilize the output. Since the ON time of the main switch 3 can be set as desired, the minimum duty ratio can be reduced to zero or a sufficiently small value.

摘要翻译： 本发明提供了一种电流模式控制升压转换器，其能够将最小占空比降低到足够小的值，并且有助于设定最大占空比。 升压转换器包括用于产生与整流器4的电流相对应的电流检测信号Vc的电流检测器9; 用于产生对应于输出DC电压Vo的误差信号Ve的误差放大器8; 以及用于根据电流检测信号Vc和误差信号Ve导通/断开主开关3的控制电路10。 控制电路10包括比较器11和定时器电路12.通过这种配置，主开关3的接通时间被设定为预定值，并且控制以三角波形变化的电感器电流的谷值。 因此，主开关的断开时间被调节以稳定输出。 由于可以根据需要设定主开关3的导通时间，所以可以将最小占空比降低到零或足够小的值。

公开(公告)号：US07567069B2

公开(公告)日：2009-07-28

申请号：US11898701

申请日：2007-09-14

申请人： Takashi Ryu ,  Takuya Ishii ,  Mikio Motomori ,  Kazuhito Kimura ,  Satoshi Wada ,  Rumi Nakai

发明人： Takashi Ryu ,  Takuya Ishii ,  Mikio Motomori ,  Kazuhito Kimura ,  Satoshi Wada ,  Rumi Nakai

IPC分类号： G05F1/40 ,  H02M3/18

CPC分类号： H02M1/36 ,  Y10S323/901

摘要： A step-up power supply device includes: a step-up converter; a startup circuit which controls the on/off operation of a switch element of the step-up converter when an output voltage of the device is smaller than a reference voltage; and a control circuit which operates in substitution for the startup circuit when the output voltage is higher than the reference voltage to control the on/off operation of the switch element such that the output voltage reaches a target value. The startup circuit includes an oscillation circuit for generating a pulse signal which has a predetermined on/off ratio, a current comparison circuit for comparing a current of the switch element with a predetermined restriction value, and a drive circuit for generating a drive signal based on which the switch element is turned on/off, the drive signal being generated from the pulse signal to turn on the switch element, and the drive signal being generated from the output of the current comparison circuit or the pulse signal to turn off the switch element.

摘要翻译： 升压电源装置包括：升压转换器; 启动电路，当所述器件的输出电压小于参考电压时，控制所述升压转换器的开关元件的接通/断开操作; 以及控制电路，其在输出电压高于基准电压时代替启动电路，以控制开关元件的导通/截止操作，使得输出电压达到目标值。 启动电路包括用于产生具有预定的导通/关断比的脉冲信号的振荡电路，用于将开关元件的电流与预定限制值进行比较的电流比较电路，以及用于产生基于 所述开关元件被接通/断开，所述驱动信号从所述脉冲信号产生，以接通所述开关元件，并且所述驱动信号是从所述当前比较电路的输出或所述脉冲信号产生的，以将所述开关元件 。

公开(公告)号：US20080211475A1

公开(公告)日：2008-09-04

申请号：US11905399

申请日：2007-09-28

申请人： Takuya Ishii ,  Mikio Motomori ,  Junichi Morita ,  Takashi Ryu ,  Masaaki Koto ,  Makoto Ishimaru ,  Kazuhito Kimura ,  Satoshi Wada

发明人： Takuya Ishii ,  Mikio Motomori ,  Junichi Morita ,  Takashi Ryu ,  Masaaki Koto ,  Makoto Ishimaru ,  Kazuhito Kimura ,  Satoshi Wada

IPC分类号： G05F1/565

CPC分类号： H02M3/156

摘要： The present invention provides a current-mode control step-up converter capable of reducing the minimum duty ratio to a sufficiently small value and facilitating the setting of the maximum duty ratio. The step-up converter comprises a current detector 9 for generating a current detection signal Vc corresponding to the current of a rectifier 4; an error amplifier 8 for generating an error signal Ve corresponding to an output DC voltage Vo; and a control circuit 10 for turning ON/OFF the main switch 3 on the basis of the current detection signal Vc and the error signal Ve. The control circuit 10 comprises a comparator 11 and a timer circuit 12. With this configuration, the ON time of the main switch 3 is set at a predetermined value, and the valley value of an inductor current changing in a triangular waveform is controlled. Hence, the OFF time of the main switch is adjusted to stabilize the output. Since the ON time of the main switch 3 can be set as desired, the minimum duty ratio can be reduced to zero or a sufficiently small value.

摘要翻译： 本发明提供了一种电流模式控制升压转换器，其能够将最小占空比降低到足够小的值，并且有助于设定最大占空比。 升压转换器包括用于产生与整流器4的电流相对应的电流检测信号Vc的电流检测器9; 用于产生对应于输出DC电压Vo的误差信号Ve的误差放大器8; 以及用于根据电流检测信号Vc和误差信号Ve导通/断开主开关3的控制电路10。 控制电路10包括比较器11和定时器电路12。 利用这种配置，主开关3的接通时间被设定为预定值，并且控制以三角波形变化的电感器电流的谷值。 因此，主开关的断开时间被调节以稳定输出。 由于可以根据需要设定主开关3的导通时间，所以可以将最小占空比降低到零或足够小的值。

公开(公告)号：US08686704B2

公开(公告)日：2014-04-01

申请号：US12721054

申请日：2010-03-10

申请人： Takuya Ishii ,  Takashi Ryu ,  Satoshi Wada

发明人： Takuya Ishii ,  Takashi Ryu ,  Satoshi Wada

IPC分类号： G05F1/56 ,  G05F1/565 ,  G05F1/575

CPC分类号： H02M3/156 ,  H02M2001/0009

摘要： A current sense circuit for use with a switching regulator including a first transistor, connected to an inductor, configured to switch a current flowing through the inductor from a power supply; and a second transistor, connected to a node to which the inductor and the first transistor are connected, configured to be turned on during a part of an OFF period of the first transistor. The current sense circuit includes a current generator configured to generate a sense current corresponding to a current flowing through the first transistor; a hold circuit configured to output a voltage corresponding to the sense current during an ON period of the first transistor, and to hold and output the voltage corresponding to the sense current during the OFF period of the first transistor; and an output transistor configured to generate a current corresponding to the voltage output by the hold circuit.

摘要翻译： 一种用于开关调节器的电流检测电路，包括连接到电感器的第一晶体管，其被配置为从电源切换流过电感器的电流; 以及连接到所述电感器和所述第一晶体管连接到的节点的第二晶体管，被配置为在所述第一晶体管的OFF周期的一部分期间导通。 电流检测电路包括电流发生器，其被配置为产生与流过第一晶体管的电流相对应的感测电流; 保持电路，被配置为在所述第一晶体管的导通时段期间输出与所述感测电流相对应的电压，并且在所述第一晶体管的所述断开期间保持并输出与所述感测电流对应的电压; 以及输出晶体管，被配置为产生与由保持电路输出的电压相对应的电流。

公开(公告)号：US20100289473A1

公开(公告)日：2010-11-18

申请号：US12721054

申请日：2010-03-10

申请人： Takuya Ishii ,  Takashi Ryu ,  Satoshi Wada

发明人： Takuya Ishii ,  Takashi Ryu ,  Satoshi Wada

IPC分类号： G05F1/10

CPC分类号： H02M3/156 ,  H02M2001/0009

摘要： A current sense circuit for use with a switching regulator including a first transistor, connected to an inductor, configured to switch a current flowing through the inductor from a power supply; and a second transistor, connected to a node to which the inductor and the first transistor are connected, configured to be turned on during a part of an OFF period of the first transistor. The current sense circuit includes a current generator configured to generate a sense current corresponding to a current flowing through the first transistor; a hold circuit configured to output a voltage corresponding to the sense current during an ON period of the first transistor, and to hold and output the voltage corresponding to the sense current during the OFF period of the first transistor; and an output transistor configured to generate a current corresponding to the voltage output by the hold circuit.

摘要翻译： 一种用于开关调节器的电流检测电路，包括连接到电感器的第一晶体管，其被配置为从电源切换流过电感器的电流; 以及连接到所述电感器和所述第一晶体管连接到的节点的第二晶体管，被配置为在所述第一晶体管的OFF周期的一部分期间导通。 电流检测电路包括电流发生器，其被配置为产生与流过第一晶体管的电流相对应的感测电流; 保持电路，被配置为在所述第一晶体管的导通时段期间输出与所述感测电流相对应的电压，并且在所述第一晶体管的所述断开期间保持并输出与所述感测电流对应的电压; 以及输出晶体管，被配置为产生与由保持电路输出的电压相对应的电流。

公开(公告)号：US09044947B2

公开(公告)日：2015-06-02

申请号：US13483417

申请日：2012-05-30

申请人： Satoshi Wada ,  Hiromitsu Yamaguchi ,  Makoto Akahira

发明人： Satoshi Wada ,  Hiromitsu Yamaguchi ,  Makoto Akahira

IPC分类号： B41J29/393 ,  B41J2/155 ,  B41J2/045 ,  B41J2/21

CPC分类号： B41J2/155 ,  B41J2/04505 ,  B41J2/04541 ,  B41J2/0458 ,  B41J2/04588 ,  B41J2/04598 ,  B41J2/2132 ,  B41J29/393 ,  B41J2202/20

摘要： An object of the present invention is to provide an ink jet printing apparatus which can prevent possible stripe-like density unevenness in a joint in a print head constructed by joining a plurality of chips together even if the print head is inclined to the regular position of the print head. The present invention uses a print head having the nozzle arrays being shifted in a direction in which the nozzles are arranged, so as to have overlapping portions in a direction orthogonal to the nozzle arranging direction. The present invention controls an ink ejecting operation of the nozzles in the overlapping portions between the plurality of nozzle arrays on the basis of an angle between the nozzle array arranging direction and a direction orthogonal to the direction in which the print head moves relative to the print medium.

摘要翻译： 本发明的目的是提供一种喷墨打印设备，其可以防止在通过将多个芯片接合在一起而构成的打印头中的接头中可能的条纹状浓度不均匀，即使打印头倾斜到 打印头。 本发明使用具有沿着喷嘴排列方向移动的喷嘴列的打印头，以便在与喷嘴布置方向正交的方向上具有重叠部分。 本发明基于喷嘴阵列排列方向与与打印头相对于打印头移动的方向正交的方向之间的角度来控制喷嘴在多个喷嘴阵列之间的重叠部分中的喷墨操作 中。

公开(公告)号：US20130063024A1

公开(公告)日：2013-03-14

申请号：US13607319

申请日：2012-09-07

申请人： Satoshi Wada ,  Miki Moriyama

发明人： Satoshi Wada ,  Miki Moriyama

IPC分类号： H05B33/12 ,  H01J9/00

CPC分类号： H01L33/58 ,  H01L25/0753 ,  H01L33/501 ,  H01L33/56 ,  H01L33/60 ,  H01L2224/16225 ,  H01L2924/181 ,  H01L2933/005 ,  H01L2924/00012

摘要： The present invention provides a glass-sealed LED lamp which includes a mounting substrate, an LED chip mounted on the mounting substrate, a glass sealing body, and a glass bonding portion bonding the LED chip to a portion of a lower surface side of the glass sealing body. A clearance between a lower surface of the glass sealing body and an upper surface of the mounting substrate side, which causes total reflection at an interface between the glass sealing body and the clearance, is formed outward of the portion of the lower surface side of the glass sealing body.

摘要翻译： 本发明提供一种玻璃密封LED灯，其包括安装基板，安装在安装基板上的LED芯片，玻璃密封体和将LED芯片接合到玻璃的下表面侧的一部分的玻璃接合部 密封体。 玻璃密封体的下表面与安装基板侧的上表面之间的间隙在玻璃密封体与间隙之间的界面处形成全反射，形成在该玻璃密封体的下表面侧的部分的外侧 玻璃密封体。