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25 条记录 (耗时 0.035 秒)

    Imaging apparatus
    4.
    发明申请
    Imaging apparatus 失效
    成像设备

    公开(公告)号：US20080094497A1

    公开(公告)日：2008-04-24

    申请号：US11699343

    申请日：2007-01-30

    申请人： Makoto Ishimaru

    发明人： Makoto Ishimaru

    IPC分类号： G02B13/16

    CPC分类号： G02B7/02

    摘要： To provide an imaging apparatus employing a fixed focal length nonadjustable lens, characterized in that a lens unit is configured to be mounted in one-touch on a module unit affixed by reflow soldering or the like to a base plate.An imaging apparatus configured so that, when the lens unit is mounted in one-touch on the module unit, the conical outer circumferential surface of a tip-end part of a lens press-fitting part is in close contact with the inner circumferential surface of the conical concave part of the holder to regulate the coaxiality of the installed lens, and a flange face of the lens is directly received and supported by the holder to regulate the parallelity with the imaging element and, in addition, when the lens unit is mounted in one-touch on the module unit, the barrel which is integrally formed with the lens press-fitting part is snap-locked onto the upper end part of the holder to ensure the fixing of the barrel.

    摘要翻译： 为了提供一种使用固定焦距不可调透镜的成像装置，其特征在于，透镜单元被配置为一体地安装在通过回流焊等固定的模块单元到基板上。 一种成像装置，其被构造成使得当所述透镜单元一体地安装在所述模块单元上时，所述透镜压配部的前端部的锥形外周面与所述透镜单元的内周面紧密接触 用于调节安装的透镜的同轴度的保持器的锥形凹部，透镜的凸缘面被保持器直接接收和支撑，以调节与成像元件的平行性，此外，当安装透镜单元时 与模块单元一体接触，与透镜压配件一体形成的筒体卡扣在保持器的上端部上，以确保筒体的固定。

    DC-DC converter
    5.
    发明授权
    DC-DC converter 有权
    DC-DC转换器

    公开(公告)号：US07075275B2

    公开(公告)日：2006-07-11

    申请号：US11280314

    申请日：2005-11-17

    申请人： Mikio Motomori ,  Takuya Ishii ,  Takashi Ryu ,  Hiroki Akashi ,  Hirohisa Tanabe ,  Makoto Ishimaru ,  Tomoya Shigemi

    发明人： Mikio Motomori ,  Takuya Ishii ,  Takashi Ryu ,  Hiroki Akashi ,  Hirohisa Tanabe ,  Makoto Ishimaru ,  Tomoya Shigemi

    IPC分类号： G05F1/70 ,  H05B4/24

    CPC分类号： H02M3/1588 ,  H02M2001/0025 ,  H02M2001/0029 ,  Y02B70/1466

    摘要： A DC-DC converter has switching means which generates a continuous switching voltage having a specified period from an input voltage and outputs the generated switching voltage, output voltage generating means which receives the switching voltage at an inductor and generates an output voltage obtained by rectifying and smoothing a voltage generated in the inductor, lamp signal generating means which generates a lamp signal and outputs the generated lamp signal, and control means which performs an arithmetic operation using a current signal relative to a current flowing in the inductor, an error signal relative to the output voltage, and the lamp signal to generate a control signal for controlling the operation of the switching means and outputs the generated control signal to the switching means. The lamp signal generating means includes first signal generating means for generating a first output signal based on a frequency divided signal having first and second periods obtained by dividing the time of a clock signal having the specified period and second signal generating means for generating a second output signal having a phase 180 degrees different from the phase of the first output signal based on the frequency divided signal, generates the lamp signal which rises after being held at a constant value for a specified time period in each of the first and second periods, and outputs the generated lamp signal.

    摘要翻译： DC-DC转换器具有切换装置，其从输入电压产生具有指定周期的连续切换电压，并输出产生的开关电压，输出电压产生装置，其接收电感器的开关电压，并产生通过整流和 平滑电感器中产生的电压，产生灯信号的灯信号产生装置并输出所产生的灯信号;以及控制装置，其使用相对于在电感器中流动的电流的电流信号进行算术运算，相对于 输出电压和灯信号，以产生用于控制开关装置的操作的控制信号，并将所生成的控制信号输出到开关装置。 灯信号产生装置包括第一信号产生装置，用于根据具有通过划分具有指定周期的时钟信号的时间获得的第一和第二周期的分频信号产生第一输出信号，以及用于产生第二输出的第二信号产生装置 基于分频信号具有与第一输出信号的相位相差180度的信号的信号，产生在第一和第二周期中的每个中保持恒定值一定时间后上升的灯信号，以及 输出生成的灯信号。

    Step-up converter
    6.
    发明授权
    Step-up converter 有权
    升压转换器

    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。

    DC-DC converter and control circuit thereof
    7.
    发明授权
    DC-DC converter and control circuit thereof 失效
    DC-DC转换器及其控制电路

    公开(公告)号：US07550957B2

    公开(公告)日：2009-06-23

    申请号：US11545050

    申请日：2006-10-06

    申请人： Takuya Ishii ,  Hiroki Akashi ,  Makoto Ishimaru ,  Yoshiyuki Konishi

    发明人： Takuya Ishii ,  Hiroki Akashi ,  Makoto Ishimaru ,  Yoshiyuki Konishi

    IPC分类号： G05F1/40

    CPC分类号： H02M3/1563

    摘要： The present invention is intended to provide a DC-DC converter, in which the relationship between the duty ratio of a drive signal and the output DC voltage is nonlinear, being characterized in that the relationship between an error signal and the output DC voltage is linear, and that the design of stabilizing the feedback system is facilitated. The DC-DC converter comprises an error-amplifier circuit for generating the error signal that is obtained by amplifying the error between the output and a target value, an oscillating circuit for generating a triangular wave signal having an amplitude corresponding to the error signal, and a comparison circuit for comparing the triangular wave signal with a reference signal having a predetermined value and for generating the drive signal to turn ON/OFF a switching device.

    摘要翻译： 本发明旨在提供一种DC-DC转换器，其中驱动信号的占空比与输出DC电压之间的关系是非线性的，其特征在于误差信号与输出DC电压之间的关系是线性的 并且促进了稳定反馈系统的设计。 DC-DC转换器包括用于产生通过放大输出与目标值之间的误差而获得的误差信号的误差放大器电路，产生具有对应于误差信号的振幅的三角波信号的振荡电路，以及 比较电路，用于将三角波信号与具有预定值的参考信号进行比较，并产生用于导通/关断开关装置的驱动信号。

    DC-DC converter
    8.
    发明申请
    DC-DC converter 审中-公开
    DC-DC转换器

    公开(公告)号：US20060214647A1

    公开(公告)日：2006-09-28

    申请号：US11384247

    申请日：2006-03-21

    申请人： Makoto Ishimaru ,  Takuya Ishii ,  Mikio Motomori ,  Takashi Ryu ,  Hirohisa Tanabe ,  Hiroki Akashi ,  Tomoya Shigemi

    发明人： Makoto Ishimaru ,  Takuya Ishii ,  Mikio Motomori ,  Takashi Ryu ,  Hirohisa Tanabe ,  Hiroki Akashi ,  Tomoya Shigemi

    IPC分类号： G05F1/00

    CPC分类号： H02M3/1588 ,  H02M2001/0009 ,  Y02B70/1466

    摘要： A current detector detects a current flowing through a high-side switch to output a current detection signal. When the current detection signal is lower than an error signal which is generated based on the difference between an output voltage and a reference voltage, a comparator outputs a signal. A timer outputs a signal a predetermined time after the high-side switch is turned ON. When the timer outputs the signal and the comparator outputs the signal, the high-side switch is turned OFF.

    摘要翻译： 电流检测器检测流过高侧开关的电流以输出电流检测信号。 当电流检测信号低于基于输出电压和参考电压之差产生的误差信号时，比较器输出信号。 定时器在高侧开关接通之后的预定时间输出信号。 当定时器输出信号并且比较器输出信号时，高侧开关被关闭。

    Charge pump circuit
    9.
    发明授权
    Charge pump circuit 失效
    电荷泵电路

    公开(公告)号：US07541859B2

    公开(公告)日：2009-06-02

    申请号：US11753671

    申请日：2007-05-25

    申请人： Hiroki Akashi ,  Takuya Ishii ,  Yoshiyuki Konishi ,  Makoto Ishimaru

    发明人： Hiroki Akashi ,  Takuya Ishii ,  Yoshiyuki Konishi ,  Makoto Ishimaru

    IPC分类号： G05F3/16 ,  H02M3/18

    CPC分类号： H02M3/07

    摘要： For downsizing a charge pump circuit which selects a voltage multiple ratio, converts its input voltage and outputs the converted voltage, the number of switching devices of the charge pump circuit is reduced. The control circuit of the charge pump circuit is configured to carry out switching control for multiple switching devices and charge/discharge at least a first capacitor and a second capacitor so as to have at least a 2Vi mode for alternately repeating a first state and a second state, and a 1.5Vi mode for alternately repeating a third state and a fourth state, thereby carrying out boosting depending on the detected input voltage.

    摘要翻译： 为了减小选择电压倍数的电荷泵电路，转换其输入电压并输出转换的电压，减少了电荷泵电路的开关器件的数量。 电荷泵电路的控制电路被配置为对多个开关器件执行开关控制，并且至少对第一电容器和第二电容器进行充电/放电，以具有至少2Vi模式，用于交替地重复第一状态和第二状态 状态和用于交替重复第三状态和第四状态的1.5Vi模式，从而根据检测到的输入电压进行升压。

    CHARGE PUMP CIRCUIT
    10.
    发明申请
    CHARGE PUMP CIRCUIT 失效
    充电泵电路

    公开(公告)号：US20070273430A1

    公开(公告)日：2007-11-29

    申请号：US11753671

    申请日：2007-05-25

    申请人： Hiroki Akashi ,  Takuya Ishii ,  Yoshiyuki Konishi ,  Makoto Ishimaru

    发明人： Hiroki Akashi ,  Takuya Ishii ,  Yoshiyuki Konishi ,  Makoto Ishimaru

    IPC分类号： G05F1/10

    CPC分类号： H02M3/07

    摘要： For downsizing a charge pump circuit which selects a voltage multiple ratio, converts its input voltage and outputs the converted voltage, the number of switching devices of the charge pump circuit is reduced. The control circuit of the charge pump circuit is configured to carry out switching control for multiple switching devices and charge/discharge at least a first capacitor and a second capacitor so as to have at least a 2Vi mode for alternately repeating a first state and a second state, and a 1.5Vi mode for alternately repeating a third state and a fourth state, thereby carrying out boosting depending on the detected input voltage.

    摘要翻译： 为了减小选择电压倍数的电荷泵电路，转换其输入电压并输出转换的电压，减少了电荷泵电路的开关器件的数量。 电荷泵电路的控制电路被配置为对多个开关器件执行开关控制，并且至少对第一电容器和第二电容器进行充电/放电，以具有至少2Vi模式，用于交替地重复第一状态和第二状态 状态和用于交替重复第三状态和第四状态的1.5Vi模式，从而根据检测到的输入电压进行升压。