Semiconductor integrated circuit device and contactless electronic device
    1.
    发明授权
    Semiconductor integrated circuit device and contactless electronic device 有权
    半导体集成电路器件和非接触式电子器件

    公开(公告)号:US06487100B2

    公开(公告)日:2002-11-26

    申请号:US09811443

    申请日:2001-03-20

    IPC分类号: H02M7217

    CPC分类号: G06K19/0701 G06K19/0723

    摘要: A semiconductor integrated circuit device and a contactless electronic device are provided with a power supply circuit producing a stable smooth voltage with high efficiency for stable operation of an inner circuit. An AC voltage is applied to first and second input terminals and a rectification transistor having drain (or collector) connected to second input terminal and gate (or base) and drain (or collector) connected to each other through resistor supplies a rectified current between the first and second input terminals. The first voltage detection means produces control voltage so that the rectified voltage obtained on the source (or emitter) side of the first rectification transistor is equal to the predetermined reference voltage. The first voltage controlled current source can produce current in accordance with the control voltage and supply the current to the first resistor means. Such power supply circuit is mounted in the contactless electronic device.

    摘要翻译: 半导体集成电路器件和非接触电子器件具有电源电路,以高效率产生稳定的平滑电压,用于内部电路的稳定操作。 交流电压被施加到第一和第二输入端,并且具有连接到第二输入端的漏极(或集电极)和通过电阻彼此连接的栅极(或基极)和漏极(或集电极)的整流晶体管提供整流电流, 第一和第二输入端子。 第一电压检测装置产生控制电压,使得在第一整流晶体管的源极(或发射极)侧获得的整流电压等于预定参考电压。 第一压控电流源可以根据控制电压产生电流,并将电流提供给第一电阻器装置。 这种电源电路安装在非接触式电子设备中。

    Semiconductor integrated circuit device and contactless electronic device
    2.
    发明授权
    Semiconductor integrated circuit device and contactless electronic device 有权
    半导体集成电路器件和非接触式电子器件

    公开(公告)号:US06831378B2

    公开(公告)日:2004-12-14

    申请号:US10282142

    申请日:2002-10-29

    IPC分类号: H02J900

    CPC分类号: G06K19/0701 G06K19/0723

    摘要: In a semiconductor integrated circuit device and a contactless electronic device, an AC voltage is applied to first and second input terminals. A rectification transistor having a drain (or collector) connected to a second input terminal and gate (or base) and drain (or collector) connected to each other through a first resistor supplies a rectified current between the first and second input terminals. A first voltage detector means produces a control voltage so that the rectified voltage obtained on the source (or emitter) side of the first rectification transistor is equal to a predetermined reference voltage. The first voltage controlled current source can produce current in accordance with the control voltage and supply the current to the first resistor. Such a power supply circuit is mounted in the contactless electronic device.

    摘要翻译: 在半导体集成电路器件和非接触电子器件中,将AC电压施加到第一和第二输入端。 具有连接到第二输入端子的漏极(或集电极)和通过第一电阻器彼此连接的栅极(或基极)和漏极(或集电极)的整流晶体管在第一和第二输入端子之间提供整流的电流。 第一电压检测器装置产生控制电压,使得在第一整流晶体管的源极(或发射极)侧获得的整流电压等于预定参考电压。 第一个电压控制电流源可以根据控制电压产生电流,并将电流提供给第一个电阻。 这种电源电路安装在非接触式电子设备中。

    Semiconductor device and IC card
    3.
    发明授权
    Semiconductor device and IC card 有权
    半导体器件和IC卡

    公开(公告)号:US07441711B2

    公开(公告)日:2008-10-28

    申请号:US11651096

    申请日:2007-01-09

    IPC分类号: G06K19/06

    摘要: In an IC card in which an internal circuit is operated by an internal power supply formed from alternate current from outside received by an antenna, the voltage of the internal power supply sometimes changes due to the operation of the internal circuit. Therefore, the voltage controlling circuit of the present invention includes a voltage controlling current source, and when the internal circuit is not operated and the current higher than a predetermined current is detected in the voltage controlling current source, an operating current detector circuit outputs an enable signal. When the internal circuit is operated in response to the enable signal, the current consumed in the internal circuit is subtracted from the current passing through the voltage controlling current source. Consequently, the current change in the entire internal power supply can be prevented, and the output voltage of the internal power supply can be kept constant.

    摘要翻译: 在内部电路通过由天线从外部交替电流形成的内部电源来操作的IC卡中,由于内部电路的操作,内部电源的电压有时会变化。 因此,本发明的电压控制电路包括电压控制电流源,并且在电压控制电流源中检测到内部电路不工作且检测到高于预定电流的电流时,工作电流检测电路输出使能 信号。 当内部电路响应于使能信号而工作时,从通过电压控制电流源的电流中减去内部电路消耗的电流。 因此,可以防止整个内部电源的电流变化,并且内部电源的输出电压可以保持恒定。

    IC CARD
    4.
    发明申请
    IC CARD 审中-公开
    IC卡

    公开(公告)号:US20080093466A1

    公开(公告)日:2008-04-24

    申请号:US11953529

    申请日:2007-12-10

    IPC分类号: G06K19/07

    摘要: In an IC card of dual-way type which is used in common as a non-contact/contact operation card, an isolation transistor is provided between a power supply voltage terminal and a contact power supply circuit. Non-contact/contact judging and switching unit 6 turns OFF, when it is detected that the IC card is operated in a non-contact operation mode, an isolation transistor to isolate between the power supply voltage terminal and contact power supply circuit. Accordingly, when the power supply voltage terminal is terminated with a ground terminal during the non-contact operation mode, erroneous operation of the IC card can surely be prevented. Since the power supply voltage terminal becomes equal to a reference potential in this case, monitoring of voltage of the power supply voltage terminal can be prevented and security of the IC card can also be improved remarkably.

    摘要翻译: 在作为非接触/接触操作卡共同使用的双向型IC卡中,隔离晶体管设置在电源电压端子和接触电源电路之间。 当检测到IC卡以非接触操作模式操作时,非接触/接触判断和切换单元6关闭,隔离晶体管隔离电源电压端子和接触电源电路。 因此,当在非接触操作模式期间电源电压端子用接地端子终止时,可以可靠地防止IC卡的错误操作。 由于电源电压端子在这种情况下变为等于基准电位,因此可以防止对电源电压端子的电压的监视,并且可以显着提高IC卡的安全性。

    Generating high voltages in nonvolatile memory devices and data processing systems
    5.
    发明授权
    Generating high voltages in nonvolatile memory devices and data processing systems 失效
    在非易失性存储器件和数据处理系统中产生高电压

    公开(公告)号:US06795353B2

    公开(公告)日:2004-09-21

    申请号:US10187299

    申请日:2002-07-02

    IPC分类号: G11C700

    CPC分类号: G11C16/12 G11C5/145

    摘要: A nonvolatile memory device and a data processing system with a reduced layout area are capable of efficiently generating a high voltage without deteriorating the charge transfer efficiency of a charge pump circuit. The charge pump circuit in a nonvolatile memory device includes a plurality of stages of charge pump unit circuits. A voltage generating unit provides, as a control signal to the gate of a first MOS transistor for transferring charges from a first capacitor of a charge pump unit circuit of one stage to a first capacitor at the next stage, a fourth signal having an amplitude of a difference voltage between the power supply voltage and the charge pump voltage of the first capacitor at the one stage. The fourth control signal is obtained from second and third signals each changing in amplitude of the power supply voltage. The second signal is supplied via a second capacitor.

    摘要翻译: 具有减小的布局面积的非易失性存储器件和数据处理系统能够有效地产生高电压而不会降低电荷泵电路的电荷转移效率。 非易失性存储器件中的电荷泵电路包括多级电荷泵单元电路。 电压产生单元将作为控制信号提供给第一MOS晶体管的栅极,用于将电荷从一级的电荷泵单元电路的第一电容器转移到下一级的第一电容器,具有幅度为 一级电源电压与第一电容器的电荷泵电压之间的差分电压。 第四控制信号是从第二和第三信号获得的,每个信号各自改变电源电压的幅度。 第二信号经由第二电容器提供。

    Semiconductor device and ic card
    6.
    发明申请
    Semiconductor device and ic card 有权
    半导体器件和IC卡

    公开(公告)号:US20050277241A1

    公开(公告)日:2005-12-15

    申请号:US10512480

    申请日:2002-04-26

    摘要: In an IC card in which an internal circuit is operated by an internal power supply formed from alternate current from outside received by an antenna, the voltage of the internal power supply sometimes changes due to the operation of the internal circuit. Therefore, the voltage controlling circuit of the present invention includes a voltage controlling current source, and when the internal circuit is not operated and the current higher than a predetermined current is detected in the voltage controlling current source, an operating current detector circuit outputs an enable signal. When the internal circuit is operated in response to the enable signal, the current consumed in the internal circuit is subtracted from the current passing through the voltage controlling current source. Consequently, the current change in the entire internal power supply can be prevented, and the output voltage of the internal power supply can be kept constant.

    摘要翻译: 在内部电路通过由天线从外部交替电流形成的内部电源来操作的IC卡中,由于内部电路的操作,内部电源的电压有时会变化。 因此,本发明的电压控制电路包括电压控制电流源,并且在电压控制电流源中检测到内部电路不工作且检测到高于预定电流的电流时,工作电流检测电路输出使能 信号。 当内部电路响应于使能信号而工作时,从通过电压控制电流源的电流中减去内部电路消耗的电流。 因此,可以防止整个内部电源的电流变化,并且内部电源的输出电压可以保持恒定。

    Semiconductor device and IC card
    7.
    发明申请

    公开(公告)号:US20070108301A1

    公开(公告)日:2007-05-17

    申请号:US11651096

    申请日:2007-01-09

    IPC分类号: G06K19/06

    摘要: In an IC card in which an internal circuit is operated by an internal power supply formed from alternate current from outside received by an antenna, the voltage of the internal power supply sometimes changes due to the operation of the internal circuit. Therefore, the voltage controlling circuit of the present invention includes a voltage controlling current source, and when the internal circuit is not operated and the current higher than a predetermined current is detected in the voltage controlling current source, an operating current detector circuit outputs an enable signal. When the internal circuit is operated in response to the enable signal, the current consumed in the internal circuit is subtracted from the current passing through the voltage controlling current source. Consequently, the current change in the entire internal power supply can be prevented, and the output voltage of the internal power supply can be kept constant.

    Semiconductor device and IC card
    8.
    发明授权
    Semiconductor device and IC card 有权
    半导体器件和IC卡

    公开(公告)号:US07168624B2

    公开(公告)日:2007-01-30

    申请号:US10512480

    申请日:2002-04-26

    IPC分类号: G06K19/06

    摘要: In an IC card in which an internal circuit is operated by an internal power supply formed from alternate current from outside received by an antenna, the voltage of the internal power supply sometimes changes due to the operation of the internal circuit. Therefore, the voltage controlling circuit of the present invention includes a voltage controlling current source, and when the internal circuit is not operated and the current higher than a predetermined current is detected in the voltage controlling current source, an operating current detector circuit outputs an enable signal. When the internal circuit is operated in response to the enable signal, the current consumed in the internal circuit is subtracted from the current passing through the voltage controlling current source. Consequently, the current change in the entire internal power supply can be prevented, and the output voltage of the internal power supply can be kept constant.

    摘要翻译: 在内部电路通过由天线从外部交替电流形成的内部电源来操作的IC卡中,由于内部电路的操作,内部电源的电压有时会变化。 因此,本发明的电压控制电路包括电压控制电流源,并且在电压控制电流源中检测到内部电路不工作且检测到高于预定电流的电流时,工作电流检测电路输出使能 信号。 当根据使能信号操作内部电路时,从通过电压控制电流源的电流中减去内部电路消耗的电流。 因此,可以防止整个内部电源的电流变化,并且内部电源的输出电压可以保持恒定。