Method and apparatus for generating a proof-mass drive signal
    1.
    发明授权
    Method and apparatus for generating a proof-mass drive signal 有权
    用于产生校验质量驱动信号的方法和装置

    公开(公告)号:US09503295B2

    公开(公告)日:2016-11-22

    申请号:US14440187

    申请日:2012-11-06

    CPC classification number: H04L27/04 G01C19/5726 H04L27/125

    Abstract: A drive-mode oscillator module generates at least one proof-mass drive signal for use within a micro-electro-mechanical system (MEMS) device. The drive-mode oscillator module comprises at least one gain control component arranged to receive at least one proof-mass motion measurement signal, and to generate a digital modulation control signal based at least partly on the at least one proof-mass motion measurement signal, and at least one modulation component arranged to receive the digital amplitude modulation control signal, and to output at least one proof-mass drive signal. The at least one modulation component is arranged to digitally modulate the at least one proof-mass drive signal based at least partly on the received digital amplitude modulation control signal.

    Abstract translation: 驱动模式振荡器模块产生至少一个用于微机电系统(MEMS)装置内的校验质量驱动信号。 所述驱动模式振荡器模块包括布置成接收至少一个校验质量运动测量信号的至少一个增益控制部件,并且至少部分地基于所述至少一个校验质量运动测量信号产生数字调制控制信号, 以及至少一个调制分量,被布置成接收数字幅度调制控制信号,并输出至少一个校验质量驱动信号。 所述至少一个调制部件被布置成至少部分地基于所接收的数字幅度调制控制信号对所述至少一个校验质量驱动信号进行数字调制。

    Audio communication unit and integrated circuit
    2.
    发明授权
    Audio communication unit and integrated circuit 有权
    音频通信单元和集成电路

    公开(公告)号:US08000821B2

    公开(公告)日:2011-08-16

    申请号:US11815177

    申请日:2005-01-31

    CPC classification number: H03F3/2173 H03F2200/331

    Abstract: An audio communication unit comprises a receiver for receiving an audio signal, a sigma-delta modulator operably coupled to the receiver and arranged to modulate the received audio signal, and a class-D amplifier stage operably coupled to the sigma-delta modulator and arranged to amplify the modulated received audio signal. One or more feedback path(s) is/are arranged from an output of the class-D amplifier stage to the sigma-delta modulator. The provision of one or more feedback path(s) from the output of the class-D audio amplifier to the sigma-delta modulator facilitates smaller die size; higher power efficiency and power supply rejection ratio/intermodulation cancellation performance.

    Abstract translation: 音频通信单元包括用于接收音频信号的接收器,可操作地耦合到接收器并且被布置成调制所接收的音频信号的Σ-Δ调制器,以及可操作地耦合到Σ-Δ调制器的D类放大器级, 放大调制接收的音频信号。 从D类放大器级的输出到Σ-Δ调制器布置一个或多个反馈路径。 从D类音频放大器的输出到Σ-Δ调制器的一个或多个反馈路径的提供有利于较小的管芯尺寸; 更高的功率效率和电源抑制比/互调取消性能。

    AMPLIFIER CIRCUIT, ELECTRONIC DEVICE, METHOD FOR CONFIGURING AN AMPLIFIER CIRCUIT
    3.
    发明申请
    AMPLIFIER CIRCUIT, ELECTRONIC DEVICE, METHOD FOR CONFIGURING AN AMPLIFIER CIRCUIT 有权
    放大器电路,电子设备,用于配置放大器电路的方法

    公开(公告)号:US20100289570A1

    公开(公告)日:2010-11-18

    申请号:US12747717

    申请日:2007-12-14

    Abstract: An electronic circuit comprises one or more upstream stages and two or more downstream stages positioned, in a processing direction of the signals, downstream of the upstream stage. A plurality of configurable connections is present between the upstream stage and the downstream stages. The connections are configurable to provide a predetermined communication path between a respective upstream stage and one or more selected downstream stage selected from the two or more downstream stages and to communicatively disconnect the upstream stage from not selected downstream stages. The electronic circuit may for example be an amplifier circuit.

    Abstract translation: 电子电路包括一个或多个上游级和两个或多个下游级,在信号的处理方向上位于上游级的下游。 在上游级和下游级之间存在多个可配置连接。 连接可配置为在相应的上游级与从两个或更多个下游级中选择的一个或多个所选择的下游级之间提供预定的通信路径,并且将上游级与未选择的下游级通信地断开连接。 电子电路可以例如是放大器电路。

    Apparatus for controlling the load angle of a converter
    4.
    发明授权
    Apparatus for controlling the load angle of a converter 失效
    用于控制转换器的负载角的装置

    公开(公告)号:US4906912A

    公开(公告)日:1990-03-06

    申请号:US326520

    申请日:1989-03-21

    CPC classification number: H02P21/10

    Abstract: In order to feed to the converter on the load side of an intermediate-link frequency converter a frequency control signal (fI(S)*) which is formed by means of an angle controller (RW) from the difference of an angle reference value (wi(F)*) and a corresponding actual value (wI(F)), an actual value of the phase current is required which, for stable operation, must not contain heavy harmonics in stable operation nor must not be damped excessively dynamically by smoothing. Therefore, the measured actual angle value (wI(S)) is fed as the reference value of a servo controller (RS), to the output of which the integral (wI(S)*) of the frequency control quantity is added and the output of which is fed back to the input of the servo controller (RS).

    Abstract translation: 为了向中间链路变频器的负载侧的转换器馈送由角度控制器(RW)形成的频率控制信号(fI(S)*),从角度参考值 wi(F)*)和相应的实际值(wI(F)),需要相电流的实际值,为了稳定运行,在稳定运行中不得包含重谐波,也不能通过平滑过度动态地衰减 。 因此,将测量的实际角度值(wI(S))作为伺服控制器(RS)的基准值输入到频率控制量的积分(wI(S)*)的输出, 其输出反馈到伺服控制器(RS)的输入。

    Current source, an integrated circuit and a method

    公开(公告)号:US09836073B2

    公开(公告)日:2017-12-05

    申请号:US14582269

    申请日:2014-12-24

    Abstract: The present invention provides a current source comprising a first bias current control element, the first bias current control element being configured to generate a first current if the control value is lower than a reference value and configured to generate a second current if the control value equal to or higher than the reference value. In addition or alternatively the bias current source comprises a second bias current control element, the second bias current control element being configured to generate a third current if the control value is lower than or equal to the reference value and configured to generate a fourth current if the control value is higher than the reference value. Furthermore, the present invention provides an integrated circuit and a method.

    Voltage Regulator With Pass Transistors Carrying Different Ratios Of The Total Load Current And Method Of Operation Therefor
    6.
    发明申请
    Voltage Regulator With Pass Transistors Carrying Different Ratios Of The Total Load Current And Method Of Operation Therefor 有权
    具有通过晶体管的稳压器承载总负载电流的不同比例及其操作方法

    公开(公告)号:US20080191670A1

    公开(公告)日:2008-08-14

    申请号:US11996239

    申请日:2005-07-21

    CPC classification number: G05F1/565

    Abstract: A voltage regulator for providing a voltage regulated output to a load comprises a first loop and a second loop. The first loop comprises a first active device coupled to a first pass device and configured to provide a first, relatively high current output to the load. The second loop comprises a second active device coupled to a second pass device and configured to provide a second, relatively low current output to the load.In this manner, when the inventive concept is applied to low drop-out regulators, the provision of two independent loops reduces dramatically the quiescent current provided by the voltage regulator under low load conditions.

    Abstract translation: 用于向负载提供电压调节输出的电压调节器包括第一回路和第二回路。 第一回路包括耦合到第一通过器件并被配置为向负载提供第一相对高电流输出的第一有源器件。 第二回路包括耦合到第二通过装置并被配置为向负载提供第二相对低电流输出的第二有源装置。 以这种方式,当将本发明的概念应用于低压降稳压器时,提供两个独立的环路在低负载条件下显着降低由稳压器提供的静态电流。

    METHOD AND APPARATUS FOR GENERATING A PROOF-MASS DRIVE SIGNAL
    8.
    发明申请
    METHOD AND APPARATUS FOR GENERATING A PROOF-MASS DRIVE SIGNAL 有权
    用于产生防护质量驱动信号的方法和装置

    公开(公告)号:US20150280949A1

    公开(公告)日:2015-10-01

    申请号:US14440187

    申请日:2012-11-06

    CPC classification number: H04L27/04 G01C19/5726 H04L27/125

    Abstract: A drive-mode oscillator module generates at least one proof-mass drive signal for use within a micro-electro-mechanical system (MEMS) device. The drive-mode oscillator module comprises at least one gain control component arranged to receive at least one proof-mass motion measurement signal, and to generate a digital modulation control signal based at least partly on the at least one proof-mass motion measurement signal, and at least one modulation component arranged to receive the digital amplitude modulation control signal, and to output at least one proof-mass drive signal. The at least one modulation component is arranged to digitally modulate the at least one proof-mass drive signal based at least partly on the received digital amplitude modulation control signal.

    Abstract translation: 驱动模式振荡器模块产生至少一个用于微机电系统(MEMS)装置内的校验质量驱动信号。 所述驱动模式振荡器模块包括布置成接收至少一个校验质量运动测量信号的至少一个增益控制部件,并且至少部分地基于所述至少一个校验质量运动测量信号产生数字调制控制信号, 以及至少一个调制分量,被布置成接收数字幅度调制控制信号,并输出至少一个校验质量驱动信号。 所述至少一个调制部件被布置成至少部分地基于所接收的数字幅度调制控制信号对所述至少一个校验质量驱动信号进行数字调制。

    Amplifier circuit audio circuit and electronic device
    10.
    发明授权
    Amplifier circuit audio circuit and electronic device 有权
    放大器电路音频电路和电子设备

    公开(公告)号:US08625820B2

    公开(公告)日:2014-01-07

    申请号:US12742665

    申请日:2007-11-16

    Abstract: An amplifier circuit which, includes a first input for receiving a first input signal and a second input for receiving a second input signal. A first amplifier section is connected to the first input and the second input is present. The first amplifier section can combine the first signal and the second signal into a first combined signal, the first amplifier being connected to a first output, for outputting the first combined signal. A second amplifier section is connected to the first input and the second input, for combining the first signal and the second signal into a second combined signal, the second amplifier being connected to a second output, for outputting the second combined signal. A common mode section is connected to the first input and the second input, for generating a common mode signal based on a combination of the first signal and the second signal and outputting the common mode signal at a common output connected to the common mode amplifier. The first combined signal, the second combined signal and the common mode signal satisfy the condition that combining the first combined signal and the common mode signal results in a signal with an amplitude proportional to the amplitude of the first input signal and combining the second combined signal and the common mode signal results in a signal with an amplitude proportional to the amplitude of the second input signal.

    Abstract translation: 一种放大器电路,包括用于接收第一输入信号的第一输入端和用于接收第二输入信号的第二输入端。 第一放大器部分连接到第一输入端并且存在第二输入端。 第一放大器部分可以将第一信号和第二信号组合成第一组合信号,第一放大器连接到第一输出端,​​用于输出第一组合信号。 第二放大器部分连接到第一输入端和第二输入端,用于将第一信号和第二信号组合为第二组合信号,第二放大器连接到第二输出端,用于输出第二组合信号。 共模部分连接到第一输入端和第二输入端,用于基于第一信号和第二信号的组合产生共模信号,并在连接到共模放大器的公共输出端输出共模信号。 第一组合信号,第二组合信号和共模信号满足组合第一组合信号和共模信号的条件,其结果是具有与第一输入信号的幅度成比例的幅度的信号,并组合第二组合信号 并且共模信号产生具有与第二输入信号的振幅成比例的幅度的信号。

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