Boosting circuit and RFID tag including boosting circuit

    公开(公告)号:US08593840B2

    公开(公告)日:2013-11-26

    申请号:US13031715

    申请日:2011-02-22

    IPC分类号: H02M3/18 G05F1/10

    摘要: One object is to provide a boosting circuit whose boosting efficiency is enhanced. Another object is to provide an RFID tag including a boosting circuit whose boosting efficiency is enhanced. A node corresponding to an output terminal of a unit boosting circuit or a gate electrode of a transistor connected to the node is boosted by bootstrap operation, so that a decrease in potential which corresponds to substantially the same as the threshold potential of the transistor can be prevented and a decrease in output potential of the unit boosting circuit can be prevented.

    Semiconductor device
    43.
    发明授权
    Semiconductor device 有权
    半导体器件

    公开(公告)号:US08575960B2

    公开(公告)日:2013-11-05

    申请号:US13471879

    申请日:2012-05-15

    IPC分类号: H03K19/177 H01L29/786

    摘要: A programmable analog device in which data can be held even when supply of a power supply potential is stopped. The programmable circuit includes unit cells connected in parallel or in series, and each of the unit cells includes an analog element. A conduction state of each of the unit cells is changed between an on state and an off state. Each of the unit cells includes, as a switch of the unit cell, a first transistor having a sufficiently low off-state current and a second transistor, a gate electrode of the second transistor being electrically connected to a source or drain electrode of the first transistor. The conduction state of the unit cell is controlled with a potential of the gate electrode of the second transistor, which can be kept even when no power is supplied thanks to the low off-state current of the first transistor.

    摘要翻译: 即使停止供给电源电位,也可以进行数据保持的可编程模拟装置。 可编程电路包括并联或串联连接的单位单元,并且每个单位单元包括模拟元件。 每个单电池的导通状态在导通状态和断开状态之间变化。 每个单电池包括作为单位电池的开关的具有足够低的截止电流的第一晶体管和第二晶体管,第二晶体管的栅电极电连接到第一晶体管的源电极或漏电极 晶体管。 单电池的导通状态由第二晶体管的栅电极的电位来控制,即使在没有供电的情况下,由于第一晶体管的低截止电流也可以保持该电位。

    Semiconductor device and communication system using the semiconductor device
    45.
    发明授权
    Semiconductor device and communication system using the semiconductor device 有权
    半导体器件和使用该半导体器件的通信系统

    公开(公告)号:US08222735B2

    公开(公告)日:2012-07-17

    申请号:US11546465

    申请日:2006-10-12

    申请人: Yutaka Shionoiri

    发明人: Yutaka Shionoiri

    IPC分类号: H01L23/48

    摘要: With respect to a semiconductor device which communicates data by wireless communication, an object of the present invention is to improve sensitivity of an antenna and to protect a chip from noise without increasing the size of the device. A coiled antenna and a semiconductor integrated circuit which is electrically connected to the coiled antenna are included. The semiconductor integrated circuit is arranged so as to overlap with the coiled antenna. In this manner, arrangement of the coiled antenna and the semiconductor integrated circuit in the semiconductor device is devised, so that sensitivity of the antenna can be improved and power enough to operate the semiconductor integrated circuit can be obtained without increasing the size of the device.

    摘要翻译: 关于通过无线通信来传送数据的半导体装置,本发明的目的是提高天线的灵敏度,并且在不增加装置的尺寸的情况下保护芯片免受噪声。 包括螺旋天线和电连接到线圈天线的半导体集成电路。 半导体集成电路被布置成与盘绕天线重叠。 以这种方式,设计了线圈式天线和半导体集成电路在半导体器件中的布置,从而可以提高天线的灵敏度,并且可以在不增加器件尺寸的情况下获得足以操作半导体集成电路的功率。

    Semiconductor Device and Method of Driving Semiconductor Device
    47.
    发明申请
    Semiconductor Device and Method of Driving Semiconductor Device 有权
    半导体器件及其驱动方法

    公开(公告)号:US20120049901A1

    公开(公告)日:2012-03-01

    申请号:US13217578

    申请日:2011-08-25

    IPC分类号: H03K3/00 G05F3/02

    CPC分类号: H03K19/0016

    摘要: An object of the invention is to reduce the power consumption of a semiconductor device that requires a plurality of reference potentials and a method of driving the semiconductor device. Disclosed is a semiconductor device having a potential divider circuit in which a potential supplied to a power supply line is resistively divided by resistors connected in series to the power supply line so that a desired potential is output through a switch transistor electrically connected to the power supply line. A drain terminal of the switch transistor is electrically connected to a gate terminal of a transistor provided in a circuit on the output side (or to one terminal of a capacitor) to form a node. The switch transistor has an off current low enough to hold the desired voltage in the node even when the potential is no more supplied to the power supply line.

    摘要翻译: 本发明的目的是降低需要多个参考电位的半导体器件的功耗以及驱动半导体器件的方法。 公开了一种具有分压器电路的半导体器件,其中提供给电源线的电位被电阻器电阻分压,电阻器与电源线串联连接,从而通过电连接到电源的开关晶体管输出期望的电位 线。 开关晶体管的漏极端子电连接到设置在输出侧(或电容器的一个端子)的电路中的晶体管的栅极端子,以形成节点。 开关晶体管具有足够低的关断电流,以便即使当电势不再供应到电源线时,也能够在节点中保持期望的电压。

    Semiconductor device, and display device and electronic device utilizing the same
    48.
    发明授权
    Semiconductor device, and display device and electronic device utilizing the same 有权
    半导体装置,显示装置及利用该装置的电子装置

    公开(公告)号:US08059078B2

    公开(公告)日:2011-11-15

    申请号:US12887555

    申请日:2010-09-22

    IPC分类号: G09G3/36

    摘要: A semiconductor device having a normal function means is provided, in which the amplitude of an output signal is prevented from being decreased even when a digital circuit using transistors having one conductivity is employed. By turning OFF a diode-connected transistor 101, the gate terminal of a first transistor 102 is brought into a floating state. At this time, the first transistor 102 is ON and its gate-source voltage is stored in a capacitor. Then, when a potential at the source terminal of the first transistor 102 is increased, a potential at the gate terminal of the first transistor 102 is increased as well by bootstrap effect. As a result, the amplitude of an output signal is prevented from being decreased.

    摘要翻译: 提供具有正常功能装置的半导体器件,其中即使采用使用具有一个导电性的晶体管的数字电路,也可以防止输出信号的振幅降低。 通过关断二极管连接的晶体管101,使第一晶体管102的栅极端子成为浮置状态。 此时,第一晶体管102导通,其栅源电压被存储在电容器中。 然后,当第一晶体管102的源极端子处的电位增加时,第一晶体管102的栅极端子处的电位也通过自举效应增加。 结果,防止输出信号的幅度减小。

    Rectifier circuit, power supply circuit, and semiconductor device
    49.
    发明授权
    Rectifier circuit, power supply circuit, and semiconductor device 有权
    整流电路,电源电路和半导体器件

    公开(公告)号:US08050070B2

    公开(公告)日:2011-11-01

    申请号:US13022789

    申请日:2011-02-08

    申请人: Yutaka Shionoiri

    发明人: Yutaka Shionoiri

    IPC分类号: H02M7/00

    摘要: It is an object of the present invention to provide a rectifier circuit that can suppress deterioration or dielectric breakdown of a semiconductor element due to excessive current. A rectifier circuit of the present invention includes at least a first capacitor, a second capacitor, and a diode which are sequentially connected in series in a path which connects an input terminal and one of two output terminals, and a transistor. The second capacitor is connected between one of a source region and a drain region and a gate electrode of the transistor. Further, the other one of the source region and the drain region and the other one of two output terminals are connected each other.

    摘要翻译: 本发明的目的是提供一种能够抑制由于过电流导致的半导体元件劣化或绝缘击穿的整流电路。 本发明的整流电路至少包括串联连接输入端和两个输出端之一的路径的第一电容器,第二电容器和二极管以及晶体管。 第二电容器连接在源极区域和漏极区域中的一个以及晶体管的栅极电极之间。 此外,源极区域和漏极区域中的另一个以及两个输出端子中的另一个彼此连接。

    Transmitting and receiving circuit and semiconductor device including the same
    50.
    发明授权
    Transmitting and receiving circuit and semiconductor device including the same 有权
    发射和接收电路和包括其的半导体器件

    公开(公告)号:US08036604B2

    公开(公告)日:2011-10-11

    申请号:US12003112

    申请日:2007-12-20

    IPC分类号: H04B1/38

    摘要: An object is to provide a circuit configuration with which the number of transistors can be reduced and power conversion efficiency can be prevented from being reduced, in a transmitting and receiving circuit. The transmitting and receiving circuit includes a voltage doubler rectifier circuit having N stages, each of which includes a capacitor, where N is a positive integer. The voltage doubler rectifier circuit having N stages is connected to a circuit having a modulation function. In the capacitor in any one of the N stages, one electrode of the one capacitor is connected to an input terminal of the transmitting and receiving circuit, and a node to which the other electrode of the one capacitor is connected is connected to a circuit having a demodulation function. Since the transmitting and receiving circuit can be formed of fewer transistors, it can be reduced in size. Since a reduction in power conversion efficiency can be prevented, a power supply potential can be efficiently generated.

    摘要翻译: 目的在于提供一种在发送和接收电路中可以减少晶体管数量并且可以防止功率转换效率降低的电路配置。 发送和接收电路包括具有N级的倍压整流电路,每个级包括电容器,其中N是正整数。 具有N级的倍压整流电路连接到具有调制功能的电路。 在N级中的任何一级的电容器中,一个电容器的一个电极连接到发送和接收电路的输入端子,并且连接一个电容器的另一个电极的节点连接到具有 解调功能。 由于发送和接收电路可以由更少的晶体管形成,所以可以减小其尺寸。 由于可以防止功率转换效率的降低,所以可以有效地产生电源电位。