Driving circuit for electric load and system comprising the circuit
    1.
    发明专利
    Driving circuit for electric load and system comprising the circuit 审中-公开
    用于电力负载和包含电路的系统的驱动电路

    公开(公告)号:JP2011030227A

    公开(公告)日:2011-02-10

    申请号:JP2010168707

    申请日:2010-07-27

    IPC分类号: H03K17/695 H03K17/00

    摘要: PROBLEM TO BE SOLVED: To provide a driving circuit for an electric load, which detects a state of a load connected erroneously.
    SOLUTION: An electronic circuit (100) is disclosed, having: a node (EX) connectable to a load (LD) to be driven; and a power device (PD) with a first terminal connected to the node, to be switched between activation and deactivation. The circuit further has: a current generator (I) having an output connected to the node, which can be switched to an enabled state, at least when the power device is deactivated; and a comparator (CP) for comparing a voltage of the node (V(EX)) with a reference voltage (V(REF)). The comparator is configured to obtain comparison results (RESETN), from which a distinct condition of electric connection of the load to the node is detected.
    COPYRIGHT: (C)2011,JPO&INPIT

    摘要翻译: 要解决的问题:提供用于检测错误连接的负载的状态的电负载的驱动电路。 解决方案:公开了一种电子电路(100),其具有:可连接到待驱动的负载(LD)的节点(EX) 以及具有连接到节点的第一终端的功率设备(PD),以在激活和去激活之间切换。 该电路还具有:电流发生器(I),具有连接到该节点的输出端,该输出端可以切换到使能状态,至少当功率设备被去激活时; 以及用于将节点(V(EX))的电压与参考电压(V(REF))进行比较的比较器(CP)。 比较器被配置为获得比较结果(RESETN),从而检测负载与节点的电连接的不同条件。 版权所有(C)2011,JPO&INPIT

    Digital noise protection circuit and method
    2.
    发明专利
    Digital noise protection circuit and method 审中-公开
    数字噪声保护电路及方法

    公开(公告)号:JP2011019212A

    公开(公告)日:2011-01-27

    申请号:JP2010102336

    申请日:2010-04-27

    IPC分类号: H04B1/10 H03F1/26 H03K5/1252

    CPC分类号: H03K19/173 H03K5/1252

    摘要: PROBLEM TO BE SOLVED: To provide a method of protection from noise of a digital signal generated by a comparator.SOLUTION: The method of protection from noise of a digital signal (Vcomp) includes: a step of generating an output signal (Vout) which switches from a first logic state to a second logic state at a first switching of logic state of the digital signal (Vcomp) generated by a comparator 1; a step of detecting a change from the first logic state to the second logic state of the output signal (Vout); and a step of inhibiting further switchings of the output signal (Vout) for a first time interval after change from the first logic state to the second logic state.

    摘要翻译: 要解决的问题:提供一种防止由比较器产生的数字信号的噪声的方法。解决方案:防止数字信号(Vcomp)的噪声的方法包括:产生输出信号(Vout)的步骤,其中, 在由比较器1产生的数字信号(Vcomp)的逻辑状态的第一次切换时,从第一逻辑状态切换到第二逻辑状态; 检测从输出信号(Vout)的第一逻辑状态到第二逻辑状态的变化的步骤; 以及在从第一逻辑状态改变到第二逻辑状态之后,在第一时间间隔之后禁止进一步切换输出信号(Vout)的步骤。

    Microelectromechanical gyroscope with enhanced rejection of acceleration noise
    3.
    发明专利
    Microelectromechanical gyroscope with enhanced rejection of acceleration noise 审中-公开
    具有增强噪声抑制功能的微电子陀螺仪

    公开(公告)号:JP2010217165A

    公开(公告)日:2010-09-30

    申请号:JP2009290957

    申请日:2009-12-22

    IPC分类号: G01C19/56

    摘要: PROBLEM TO BE SOLVED: To provide a high-sensitive vibrating gyroscope with the acceleration noise reduced. SOLUTION: This is the integrated microelectromechanical structure 30 comprising a driving mass 3 designed so as to be fixed on substrate with an elastic fixed element 8a' and subjected to driven motion on xy within a plane, and both the first sensing mass 15a and second sensing mass 15b suspension-supported inside the driving mass 3 and combined with the driving mass 3 by each elastic fixed element 18, respectively, so as to be fixed on the driving mass 3, as well as, make each detecting motion, in response to angular velocity. Especially, these first sensing mass 15a and second sensing mass 15b are mutually combined by elastic combining elements 32a/32b so as to combine own vibration modes. COPYRIGHT: (C)2010,JPO&INPIT

    摘要翻译: 要解决的问题:提供降低加速噪声的高灵敏度振动陀螺仪。 解决方案:这是集成的微机电结构30,其包括被设计成用弹性固定元件8a'固定在基板上的驱动质量块3,并且在xy平面内受到驱动运动,并且第一传感块15a 和悬架支撑在驱动质量体3内部并且分别通过每个弹性固定元件18与驱动质量块3组合的第二传感质量块15b,以便固定在驱动质量体3上,并且使每个检测运动在 响应角速度。 特别地,这些第一传感块15a和第二传感块15b通过弹性组合元件32a / 32b相互组合,从而组合了自身的振动模式。 版权所有(C)2010,JPO&INPIT

    Device for controlling resonant converter
    6.
    发明专利
    Device for controlling resonant converter 审中-公开
    用于控制谐振转换器的装置

    公开(公告)号:JP2011083186A

    公开(公告)日:2011-04-21

    申请号:JP2010229173

    申请日:2010-10-11

    发明人: ADRAGNA CLAUDIO

    IPC分类号: H02M3/28

    摘要: PROBLEM TO BE SOLVED: To provide a switching circuit control device for a resonant converter that has a DC current output. SOLUTION: A half-bridge consisting of a first transistor Q1 and a second transistor Q2 generates a cyclic square wave voltage for driving a resonant circuit 300 for a resonant converter. A control device 100 has a circuit means 101 adapted to control the half-bridge according to a charging or discharging time period of a capacitor Ct and to synchronize the start time Tstart of a discharging or charging time period of the capacitor Ct that crosses a zero value of the signal Vs representing the current Is flowing in the resonant circuit 300; and additional means 102 and 103 adapted to control switching-off of the first transistor Q1 or the second transistor Q2 at the end of the discharging or charging time period of the capacitor Ct. COPYRIGHT: (C)2011,JPO&INPIT

    摘要翻译: 要解决的问题:提供一种具有直流电流输出的谐振转换器的开关电路控制装置。 解决方案:由第一晶体管Q1和第二晶体管Q2组成的半桥产生用于驱动用于谐振转换器的谐振电路300的循环方波电压。 控制装置100具有电路装置101,其适于根据电容器Ct的充电或放电时间段来控制半桥,并且使电容器Ct的放电或充电时间段的开始时间Tstart同步为零 表示在谐振电路300中流过的电流Is的信号Vs的值; 以及适于在电容器Ct的放电或充电时间段结束时控制第一晶体管Q1或第二晶体管Q2的截止的附加装置102和103。 版权所有(C)2011,JPO&INPIT

    Prediction current control at time of driving load in pulse width modulation mode
    8.
    发明专利
    Prediction current control at time of driving load in pulse width modulation mode 有权
    脉冲宽度调制模式下驱动负载时的预测电流控制

    公开(公告)号:JP2010148349A

    公开(公告)日:2010-07-01

    申请号:JP2009281976

    申请日:2009-12-11

    IPC分类号: H02M3/155

    摘要: PROBLEM TO BE SOLVED: To provide a method for controlling a load current even when a current ripple significantly varies. SOLUTION: The method includes: (A) a step of setting a threshold value of a comparator in correspondence to a reference current value for a load; (B) a step of measuring a first time interval from an active ON state of an ON phase of a power stage to a point of time when the load current reaches the reference current value; and (C) a step of continuously maintaining the power stage in the ON phase. Step (C) is performed while the power stage is further maintained in the predictive ON state for an additional time interval. The additional time interval is determined based on an average value of the first time interval and a time interval of the active ON state measured during a past PWM (pulse width modulation) cycle. COPYRIGHT: (C)2010,JPO&INPIT

    摘要翻译: 要解决的问题:即使当电流纹波显着变化时,也提供用于控制负载电流的方法。 该方法包括:(A)与负载的基准电流值对应地设定比较器的阈值的步骤; (B)从功率级的导通相的有效接通状态到负载电流达到基准电流值的时刻的第一时间间隔的步骤; 和(C)在ON阶段连续地保持功率级的步骤。 在功率级进一步保持在预测接通状态下进行另外的时间间隔时,执行步骤(C)。 基于第一时间间隔的平均值和在过去的PWM(脉冲宽度调制)周期期间测量的有效接通状态的时间间隔来确定附加时间间隔。 版权所有(C)2010,JPO&INPIT

    Low noise amplifier
    9.
    发明专利
    Low noise amplifier 审中-公开
    低噪音放大器

    公开(公告)号:JP2006067573A

    公开(公告)日:2006-03-09

    申请号:JP2005225630

    申请日:2005-08-03

    发明人: PELLERITI ROBERTO

    摘要: PROBLEM TO BE SOLVED: To provide a low noise amplifier showing a fixed input resistance, or showing satisfactory linearity when an input signal is high and a satisfactory noise pattern when the input signal is low. SOLUTION: This low noise amplifier is provided with a first circuit block capable of amplifying a first voltage signal that is input to the amplifier. The first circuit block includes a first terminal coupled to a first power supply voltage by a first variable resistance and a second terminal coupled to a second power supply voltage. The second terminal is coupled to the output terminal of the amplifier, and the input voltage signal is applied to a further terminal of the first circuit block. The amplifier also includes a feedback network coupled to the output terminal and to the further terminal of the first circuit block, and a second circuit means (3) coupled between the second power supply voltage and the other terminal of the first circuit block. The second circuit means is adapted to compensate for variations in the value of the first variable resistance to ensure the substantially constant input resistance of the amplifier. COPYRIGHT: (C)2006,JPO&NCIPI

    摘要翻译: 要解决的问题:提供一种显示固定输入电阻的低噪声放大器,或者当输入信号为高电平时显示令人满意的线性度,并且当输入信号为低时提供令人满意的噪声模式。 解决方案:该低噪声放大器设置有能够放大输入到放大器的第一电压信号的第一电路块。 第一电路块包括通过第一可变电阻耦合到第一电源电压的第一端子和耦合到第二电源电压的第二端子。 第二端子耦合到放大器的输出端,并且输入电压信号被施加到第一电路块的另一个端子。 放大器还包括耦合到输出端子和第一电路块的另一端子的反馈网络,以及耦合在第二电源电压和第一电路块的另一端子之间的第二电路装置(3)。 第二电路装置适于补偿第一可变电阻值的变化,以确保放大器基本上恒定的输入电阻。 版权所有(C)2006,JPO&NCIPI