DC converter circuit and power supply circuit
    12.
    发明授权
    DC converter circuit and power supply circuit 有权
    DC转换电路和电源电路

    公开(公告)号:US08922182B2

    公开(公告)日:2014-12-30

    申请号:US12956491

    申请日:2010-11-30

    摘要: A DC converter circuit having high reliability is provided. The DC converter circuit includes: an inductor configured to generate electromotive force in accordance with a change in flowing current; a transistor including a gate, a source, and a drain, which is configured to control generation of the electromotive force in the inductor by being on or off; a rectifier in a conducting state when the transistor is off; and a control circuit configured to control on and off of the transistor. The transistor includes an oxide semiconductor layer whose hydrogen concentration is less than or equal to 5×1019 atoms/cm3 as a channel formation layer.

    摘要翻译: 提供了具有高可靠性的DC转换器电路。 DC转换器电路包括:电感器,被配置为根据流动电流的变化产生电动势; 包括栅极,源极和漏极的晶体管,其被配置为通过导通或关断来控制电感器中的电动势的产生; 当晶体管截止时处于导通状态的整流器; 以及被配置为控制晶体管的导通和截止的控制电路。 晶体管包括作为沟道形成层的氢浓度小于或等于5×1019原子/ cm3的氧化物半导体层。

    DC-DC converter, semiconductor device and display device
    13.
    发明授权
    DC-DC converter, semiconductor device and display device 有权
    DC-DC转换器,半导体器件和显示器件

    公开(公告)号:US08816662B2

    公开(公告)日:2014-08-26

    申请号:US13109580

    申请日:2011-05-17

    IPC分类号: G05F1/56 G05F1/563 G05F1/565

    CPC分类号: H02M3/156 H02M2001/0003

    摘要: An object is to reduce power consumption of a semiconductor device including a DC-DC converter circuit. The semiconductor device includes a DC-DC converter circuit and a microprocessor. The DC-DC converter circuit includes a conversion circuit including an inductor and a transistor, and a control circuit including a comparison circuit and a logic circuit. A hysteresis comparator is used as the comparison circuit. In the control circuit, the comparison circuit compares an output signal of the conversion circuit with a first reference potential or a second reference potential, and the logic circuit performs arithmetic operation between an output signal of the comparison circuit and a clock signal of the microprocessor. In the conversion circuit, the transistor controls current flowing through the inductor in accordance with an output signal of the logic circuit, and the output signal of the conversion circuit is generated in accordance with the current flowing through the inductor.

    摘要翻译: 目的是降低包括DC-DC转换器电路的半导体器件的功耗。 半导体器件包括DC-DC转换器电路和微处理器。 DC-DC转换器电路包括具有电感和晶体管的转换电路,以及包括比较电路和逻辑电路的控制电路。 使用滞后比较器作为比较电路。 在控制电路中,比较电路将转换电路的输出信号与第一参考电位或第二参考电位进行比较,逻辑电路在比较电路的输出信号和微处理器的时钟信号之间进行运算。 在转换电路中,晶体管根据逻辑电路的输出信号控制流过电感器的电流,并且根据流过电感器的电流产生转换电路的输出信号。

    DC-DC CONVERTER AND MANUFACTURING METHOD THEREOF
    15.
    发明申请
    DC-DC CONVERTER AND MANUFACTURING METHOD THEREOF 有权
    DC-DC转换器及其制造方法

    公开(公告)号:US20120140523A1

    公开(公告)日:2012-06-07

    申请号:US13307084

    申请日:2011-11-30

    摘要: A DC-DC converter is driven by single high input voltage, and includes a voltage converter circuit and a control circuit. The increase of the occupied area of the DC-DC converter is suppressed. The DC-DC converter includes an input terminal to which input voltage is applied; a voltage converter circuit connected to the input terminal, and including a first transistor; a control circuit configured to control the voltage converter circuit, and including a second transistor including a silicon material in a channel formation region; and a third transistor provided between the input terminal and the control circuit, and configured to convert the input voltage into power supply voltage that is lower than the input voltage. The first transistor and the third transistor include an oxide semiconductor material in channel formation regions. The first transistor and the third transistor are stacked over the second transistor with an insulating film provided therebetween.

    摘要翻译: DC-DC转换器由单个高输入电压驱动,并且包括电压转换器电路和控制电路。 DC-DC转换器的占用面积的增加被抑制。 DC-DC转换器包括施加输入电压的输入端子; 连接到所述输入端子的电压转换器电路,并且包括第一晶体管; 控制电路,被配置为控制所述电压转换器电路,并且包括在沟道形成区域中包括硅材料的第二晶体管; 以及第三晶体管,其设置在所述输入端子和所述控制电路之间,并且被配置为将所述输入电压转换为低于所述输入电压的电源电压。 第一晶体管和第三晶体管包括沟道形成区域中的氧化物半导体材料。 第一晶体管和第三晶体管堆叠在第二晶体管上,其间设置有绝缘膜。

    PHOTOELECTRIC CONVERSION DEVICE
    16.
    发明申请
    PHOTOELECTRIC CONVERSION DEVICE 有权
    光电转换器件

    公开(公告)号:US20120104862A1

    公开(公告)日:2012-05-03

    申请号:US13281479

    申请日:2011-10-26

    IPC分类号: H02J1/00

    摘要: A photoelectric conversion device includes at least two photoelectric conversion elements which have voltage-current characteristics different from each other. Further, one of the photoelectric conversion elements has photoelectric conversion efficiency higher than that of the other photoelectric conversion element under the environment in which room light can be obtained. Furthermore, the other photoelectric conversion element has photoelectric conversion efficiency higher than the one of the photoelectric conversion elements under the environment in which sunlight can be obtained. Moreover, each of the voltage of electric power generated in the at least two photoelectric conversion elements is adjusted by one of at least two DC-DC converters corresponding the photoelectric conversion element. In addition, part of the electric power generated in the one of the photoelectric conversion elements is used as drive electric power of the at least two DC-DC converter.

    摘要翻译: 光电转换装置包括具有彼此不同的电压 - 电流特性的至少两个光电转换元件。 此外,在可以获得室内光的环境下,其中一个光电转换元件的光电转换效率高于另一光电转换元件的光电转换效率。 此外,另一光电转换元件在可以获得太阳光的环境下具有比一个光电转换元件高的光电转换效率。 此外,通过对应于光电转换元件的至少两个DC-DC转换器之一来调节在至少两个光电转换元件中产生的电力的每个电压。 另外,将一个光电转换元件中产生的部分电力用作至少两个DC-DC转换器的驱动电力。

    DCDC CONVERTER, SEMICONDUCTOR DEVICE, AND POWER GENERATION DEVICE
    17.
    发明申请
    DCDC CONVERTER, SEMICONDUCTOR DEVICE, AND POWER GENERATION DEVICE 有权
    DCDC转换器,半导体器件和发电装置

    公开(公告)号:US20120086422A1

    公开(公告)日:2012-04-12

    申请号:US13239515

    申请日:2011-09-22

    IPC分类号: G05F1/46

    CPC分类号: H02M3/156

    摘要: A DCDC converter includes a control circuit, a transistor in which switching is controlled by being supplied voltage output from the control circuit to a gate electrode of the transistor, a voltage conversion portion in which supply of input voltage is controlled by the switching of the transistor and output power commensurate with duty ratio of the switching of the transistor, and a detection circuit detecting the output power. Further, the control circuit includes a control signal generation circuit generating a control signal with a pulse voltage waveform and a selection circuit applying voltage of the control signal to the gate electrode in the case where current detected by the detection circuit is the same as or exceeds the threshold value and applying voltage for turning on the transistor to the gate electrode in the case where the current detected by the detection circuit falls below the threshold value.

    摘要翻译: DCDC转换器包括控制电路,通过从控制电路向晶体管的栅电极输出的电压来控制开关的晶体管,通过晶体管的开关来控制输入电压的供给的电压转换部分 以及与晶体管的开关的占空比相当的输出功率,以及检测输出功率的检测电路。 此外,控制电路包括控制信号产生电路,在由检测电路检测到的电流相同或超过的情况下,产生具有脉冲电压波形的控制信号和选择电路将施加控制信号的电压施加到栅电极 在由检测电路检测到的电流低于阈值的情况下,将阈值和用于将晶体管接通至栅电极的施加电压。

    Control circuit, DCDC converter, and driving method
    18.
    发明授权
    Control circuit, DCDC converter, and driving method 有权
    控制电路,DCDC转换器及驱动方式

    公开(公告)号:US09543933B2

    公开(公告)日:2017-01-10

    申请号:US13241510

    申请日:2011-09-23

    申请人: Yoshiaki Ito

    发明人: Yoshiaki Ito

    摘要: A current generator circuit included in a triangle-wave generator circuit in a control circuit includes plural stages of current mirrors connected in parallel with each other. The plural stages of current mirrors are placed so that the sum of output currents output therefrom becomes an output current of the current generator circuit. A switching element that controls the on/off state of a current in accordance with the amount of load current of a DCDC converter is connected to each of the current mirrors.

    摘要翻译: 包括在控制电路中的三角波发生器电路中的电流发生器电路包括彼此并联连接的多级电流镜。 电流镜的多级放置成使得其输出的输出电流的和成为电流发生器电路的输出电流。 根据DCDC转换器的负载电流量来控制电流的开/关状态的开关元件连接到每个电流镜。

    Air conditioning system diagnosis apparatus and air conditioning system diagnosis result display apparatus
    20.
    发明授权
    Air conditioning system diagnosis apparatus and air conditioning system diagnosis result display apparatus 有权
    空调系统诊断仪和空调系统诊断结果显示装置

    公开(公告)号:US08903682B2

    公开(公告)日:2014-12-02

    申请号:US13376458

    申请日:2010-03-11

    IPC分类号: G06F19/00 G05G5/06 F24F11/00

    摘要: An air conditioning system diagnosis apparatus and an air conditioning system diagnosis result display apparatus capable of representing various kinds of failures with high visibility by generating a system structure diagram that illustrates an air conditioning system in a different form depending on a detected failure and illustrating the failure using this system structure diagram are obtainable. Diagnosis result superimposed diagram generating means for generating a system structure diagram that includes icons, such as an icon of an outdoor unit and an icon of an indoor unit, and a line that links them on the basis of system structure information derived by system structure analyzing means and for superimposing a refrigeration cycle diagnosis result derived by refrigeration cycle analyzing means in the vicinity of an icon of a concerned device in the system structure diagram is included.

    摘要翻译: 一种空调系统诊断装置和空调系统诊断结果显示装置,其能够通过生成根据检测到的故障来示出不同形式的空调系统的系统结构图,并且示出故障,能够表示具有高可见性的各种故障 使用该系统结构图可以获得。 诊断结果叠加图生成装置,用于生成包括诸如室外单元的图标和室内单元的图标的图标的系统结构图,以及基于通过系统结构分析得到的系统结构信息来链接它们的线 包括在系统结构图中用于将制冷循环分析装置产生的制冷循环诊断结果叠加在相关装置的图标附近的装置。