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11. 发明申请

US20140062596A1 CHOPPED OSCILLATOR 有权
标题翻译： CHOPPED振荡器
公开(公告)号：US20140062596A1
公开(公告)日：2014-03-06
申请号：US13789449
申请日：2013-03-07
申请人： Adam GLIBBERY
发明人： Adam GLIBBERY
IPC分类号： H03K3/36 , H03F3/45
CPC分类号： H03K3/36 , H03F3/45179 , H03F3/45183 , H03F2203/45561 , H03F2203/45614 , H03F2203/45616 , H03F2203/45641 , H03F2203/45644 , H03F2203/45724 , H03F2203/45726 , H03K3/0231 , H03K4/06
摘要： Embodiments of the present disclosure may provide a relaxation oscillator with improved performance against phase noise error. The phase noise error may be reduced from sources whose power is greater at lower frequencies. To reduce the noise error, the relaxation oscillator may include chopping in the charging current driver; chopping in the trigger level generator; and/or chopping in the currents that feed the cells. A chopped amplifier may be provided to perform chopping of the input signals.
摘要翻译：本公开的实施例可以提供具有相对于相位噪声误差的改进性能的张弛振荡器。在较低频率下功率较大的电源可能会降低相位噪声误差。为了降低噪声误差，张弛振荡器可能包括在充电电流驱动器中的斩波; 在触发电平发生器中切断; 和/或在供给细胞的电流中切断。可以提供斩波放大器来执行输入信号的斩波。

12. 发明授权

US3970947A Multi-stage differential amplifier circuit with means for compensating the temperature drift of a constant current source transistor 失效
标题翻译：具有用于补偿恒流源晶体管的温度漂移的装置的多级差分放大器电路
公开(公告)号：US3970947A
公开(公告)日：1976-07-20
申请号：US579703
申请日：1975-05-21
申请人： Itsuzo Sato , Kikuo Saito
发明人： Itsuzo Sato , Kikuo Saito
IPC分类号： H03F1/30 , H03F3/45 , H03F1/32
CPC分类号： H03F1/302 , H03F1/30 , H03F3/45 , H03F3/45085 , H03F2203/45466 , H03F2203/45471 , H03F2203/45561 , H03F2203/45652 , H03F2203/45701
摘要： A multi-stage differential amplifier circuit comprises a preceding stage differential amplifier and a succeeding stage differential amplifier which are direct-coupled in unbalanced configuration. A variation in the DC level at an output of the amplifier circuit due to the temperature drift of a constant current source transistor in the preceding stage differential amplifier is compensated by a bias circuit connected to the base of one of differential transistors in the succeeding stage differential amplifier. The compensation bias circuit includes a current source transistor the base of which is connected, together with the base of the current source transistor in the preceding stage differential amplifier, to a common drive voltage source.
摘要翻译：多级差分放大器电路包括在非平衡配置中直接耦合的前级差分放大器和后级差分放大器。由于前级差动放大器中的恒流源晶体管的温度漂移，放大器电路的输出端的直流电平的变化由连接到后级差分中的一个差分晶体管的基极的偏置电路补偿放大器补偿偏置电路包括其基极与前级差分放大器中的电流源晶体管的基极一起连接到公共驱动电压源的电流源晶体管。

13. 发明公开

EP3176945A1 AMPLIFIER ARRANGEMENT AND SWITCHED CAPACITOR INTEGRATOR 有权转让
标题翻译：放大器布置和开关电容集成器
公开(公告)号：EP3176945A1
公开(公告)日：2017-06-07
申请号：EP15198050.5
申请日：2015-12-04
申请人： ams AG
发明人： Steiner, Matthias , Fitzi, Andreas
IPC分类号： H03F1/26 , H03F3/00 , H03F3/45 , H03F3/42
CPC分类号： H03F1/26 , H03F3/005 , H03F3/423 , H03F3/4521 , H03F3/45645 , H03F2200/129 , H03F2200/264 , H03F2200/372 , H03F2200/555 , H03F2200/75 , H03F2203/45082 , H03F2203/45088 , H03F2203/45091 , H03F2203/45116 , H03F2203/45134 , H03F2203/45156 , H03F2203/45171 , H03F2203/45174 , H03F2203/45208 , H03F2203/45221 , H03F2203/45244 , H03F2203/45352 , H03F2203/45416 , H03F2203/45434 , H03F2203/45481 , H03F2203/45512 , H03F2203/45544 , H03F2203/45551 , H03F2203/45561 , H03F2203/45616
摘要： An amplifier arrangement has a first differential stage with a first transistor pair, a second differential stage with a first and a second transistor pair, each pair having a common source connection coupled to a drain terminal to a respective one of the transistors of the first differential stage. The amplifier arrangement further has a first complementary differential stage with a transistor pair having opposite conductivity type compared to the transistor pair of the first differential stage, and a second complementary differential stage with a first and a second transistor pair of the complementary conductivity type. The first and the second complementary differential stage are connected symmetrically compared to the first and the second differential stage. The transistors of the second complementary differential stage are symmetrically connected to the transistors of the second differential stage such that respective first, second, third and fourth current paths are formed. A pair of output terminals is coupled to the first and the second current path. Gate terminals of the transistors of each of the stages are coupled to a respective pair of input terminals.
摘要翻译：一种放大器装置具有：具有第一晶体管对的第一差分级，具有第一和第二晶体管对的第二差分级，每一对具有公共源极连接，该公共源极连接耦合到第一差分晶体管的相应一个晶体管的漏极端子阶段。放大器装置还具有第一互补差分级和第二互补差分级，第一互补差分级具有与第一差分级的晶体管对相比导电类型相反的晶体管对，第二互补差分级具有互补导电类型的第一和第二晶体管对。与第一和第二差动级相比，第一和第二互补差动级对称地连接。第二互补差分级的晶体管对称地连接到第二差分级的晶体管，使得分别形成第一，第二，第三和第四电流路径。一对输出端子耦合到第一和第二电流路径。每个级的晶体管的栅极端子耦合到相应的一对输入端子。

14. 发明公开

EP2136420A1 MAGNETIC COUPLER ELEMENT AND MAGNETIC COUPLING TYPE ISOLATOR 审中-公开
标题翻译：磁性耦合器元件和磁耦合型隔离器
公开(公告)号：EP2136420A1
公开(公告)日：2009-12-23
申请号：EP08704271.9
申请日：2008-01-31
申请人： Omron Corporation , The Research Institute For Electric And Magnetic Materials
发明人： YAMAMOTO, Masaaki , KARIYA, Yuichi , TOSHIMA, Katsuhisa , KOBAYASHI, Nobukiyo , YANO, Takeshi
IPC分类号： H01L43/08 , H01F38/14 , H04B3/02
CPC分类号： H04B5/00 , H01F5/003 , H01L43/08 , H03F3/181 , H03F3/189 , H03F3/45475 , H03F3/45991 , H03F2200/03 , H03F2200/451 , H03F2200/78 , H03F2203/45538 , H03F2203/45554 , H03F2203/45561 , H03F2203/45576 , H03F2203/45591 , H03F2203/45594 , H03F2203/45621
摘要： MAGNETIC COUPLER ELEMENT AND MAGNETIC COUPLING TYPE ISOLATOR
In a magnetic coupler device comprising: a magnetic field generation circuit generating a magnetic field according to an input current; and a detection bridge circuit including a pair of magnetoresistance effect devices, a resistance value of each of the magnetoresistance effect devices changing by applying a magnetic field generated by said magnetic field generation circuit to each of the magnetoresistance effect devices, and having two outputs between which a voltage difference is generated according to an intensity of the magnetic field generated by said magnetic field generation circuit, by forming a geometric shape of each of said magnetic field generation circuit and said detection bridge circuit in line symmetric or point symmetric, a high S/N ratio is obtained even with high frequency.
摘要翻译：磁耦合元件和磁耦合型隔离器在一种磁耦合器装置中，包括：根据输入电流产生磁场的磁场产生电路; 以及包括一对磁阻效应器件的检测桥电路，每个磁阻效应器件的电阻值通过将由所述磁场产生电路产生的磁场施加到每个磁阻效应器件而改变，并且具有两个输出，根据由所述磁场产生电路产生的磁场的强度产生电压差，通过形成所述磁场产生电路和所述检测电桥电路中的每一个的几何形状线对称或点对称，高S / N比率即使在高频率下也能得到。

15. 发明公开

EP2317646A1 Amplifier 审中-公开
标题翻译：放大器
公开(公告)号：EP2317646A1
公开(公告)日：2011-05-04
申请号：EP09252522.9
申请日：2009-10-30
申请人： ST-Ericsson SA
发明人： Teng, Robert Hwat Hian
IPC分类号： H03F3/187 , H03F3/45
CPC分类号： H03F3/45475 , H03F3/187 , H03F3/45179 , H03F3/45278 , H03F3/45645 , H03F3/45928 , H03F2200/03 , H03F2200/231 , H03F2200/234 , H03F2200/27 , H03F2200/375 , H03F2200/396 , H03F2200/411 , H03F2200/414 , H03F2200/453 , H03F2200/456 , H03F2200/507 , H03F2200/78 , H03F2203/45101 , H03F2203/45116 , H03F2203/45138 , H03F2203/45206 , H03F2203/45212 , H03F2203/45222 , H03F2203/45224 , H03F2203/45356 , H03F2203/45536 , H03F2203/45561 , H03F2203/45588 , H03F2203/45616 , H03F2203/45641 , H03F2203/45728
摘要： An amplifier 100 has an input 108 for receiving a signal to be amplified and an output 110 for outputting an amplified signal. The amplifier 100 comprises a main amplification stage 102, an auxiliary amplification stage 104 and a controller 106. The main amplification stage 102 comprises a main amplification circuit 200 and the auxiliary amplification stage 104 comprises an auxiliary amplification circuit 202. Each of the main amplification circuit 200 and the auxiliary amplification circuit 202 comprises a p-channel metal oxide semiconductor (PMOS) transistor T1, T3 and an n-channel metal oxide semiconductor (NMOS) transistor T2, T4. The PMOS and NMOS transistors T3, T4 of the auxiliary amplification circuit 202 are either identical to the PMOS and NMOS transistors T1, T2 of the main amplification circuit 200 or are scaled down copies of the PMOS and NMOS transistors T1, T2 of the main amplification circuit 200. The auxiliary amplification circuit 202 amplifies the input signal to generate a control signal and the controller 106 controls a function of the amplifier 100 based on the control signal.
摘要翻译：放大器100具有用于接收待放大信号的输入端108和用于输出放大信号的输出端110。放大器100包括主放大级102，辅助放大级104和控制器106.主放大级102包括主放大电路200，辅助放大级104包括辅助放大电路202.每个主放大电路 200和辅助放大电路202包括p沟道金属氧化物半导体（PMOS）晶体管T1，T3和n沟道金属氧化物半导体（NMOS）晶体管T2，T4。辅助放大电路202的PMOS和NMOS晶体管T3，T4或者与主放大电路200的PMOS和NMOS晶体管T1，T2相同，或者是主放大的PMOS和NMOS晶体管T1，T2的缩小副本辅助放大电路202放大输入信号以生成控制信号，并且控制器106基于控制信号来控制放大器100的功能。

16. 发明授权

EP2008360B1 ELIMINATION OF DUMMY DETECTOR ON OPTICAL DETECTORS USING INPUT COMMON MODE FEEDBACK 有权
标题翻译：虚拟探测器的与输入共模反馈光学探测器处置
公开(公告)号：EP2008360B1
公开(公告)日：2010-07-28
申请号：EP07717636.0
申请日：2007-02-20
申请人： Exar Corporation
发明人： RANDLETT, Richard, W.
IPC分类号： H03F3/08
CPC分类号： H03F3/087 , H03F1/08 , H03F3/45475 , H03F3/45928 , H03F3/45941 , H03F2203/45061 , H03F2203/45078 , H03F2203/45424 , H03F2203/45561

17. 发明授权

US08736321B2 Transmission/reception device and information processing device 有权
标题翻译：发送/接收设备和信息处理设备
公开(公告)号：US08736321B2
公开(公告)日：2014-05-27
申请号：US13866061
申请日：2013-04-19
申请人： Fujitsu Limited
发明人： Ryuichi Nishiyama , Jun Yamada , Naoya Shibayama
IPC分类号： H03L7/06
CPC分类号： H03H11/265 , H03F3/195 , H03F3/45183 , H03F2203/45544 , H03F2203/45548 , H03F2203/45561 , H03F2203/45674 , H03L7/00 , H03L7/0814 , H04L25/0274 , H04L25/028 , H04L25/0292
摘要： A transmission/reception device includes a transmission circuit configured to apply a delay to at least one of a positive signal and a negative signal of differential signals to be sent to another device, detect a direction of a differential signal skew between the positive signal and the negative signal, to at least one of which the delay is applied, and control the delay in a manner as to reduce the differential signal skew; and a reception circuit configured to apply a delay to at least one of a positive signal and a negative signal of differential signals sent from another transmission/reception device, detect a direction of a differential signal skew between the positive signal and the negative signal, to at least one of which the delay is applied, and control the delay in a manner as to reduce the differential signal skew.
摘要翻译：发送/接收装置包括：发送电路，被配置为对要发送到另一个设备的差分信号的正信号和负信号中的至少一个施加延迟，检测正信号和正信号之间的差分信号偏移的方向负信号到其中施加了延迟的至少一个，并且以减少差分信号偏移的方式来控制延迟; 以及接收电路，被配置为对从另一发送/接收装置发送的差分信号的正信号和负信号中的至少一个施加延迟，检测正信号和负信号之间的差分信号偏差的方向，其中施加了延迟中的至少一个，并且以减少差分信号偏移的方式来控制延迟。

18. 发明申请

US20110158435A1 AUDIO SIGNAL AMPLIFIER CIRCUIT 有权
标题翻译：音频信号放大器电路
公开(公告)号：US20110158435A1
公开(公告)日：2011-06-30
申请号：US12795158
申请日：2010-06-07
申请人： Katsuyuki ONO , Akinobu KAWAMURA
发明人： Katsuyuki ONO , Akinobu KAWAMURA
IPC分类号： H03F99/00 , H03F3/45
CPC分类号： H03F3/45475 , H03F1/0261 , H03F3/45183 , H03F2200/03 , H03F2203/45528 , H03F2203/45536 , H03F2203/45544 , H03F2203/45548 , H03F2203/45561 , H03F2203/45594 , H03F2203/45596 , H03F2203/45618 , H03F2203/45622
摘要： An inverting amplifier which drives headphones via an output capacitor includes: an operational amplifier, an input resistor having a first terminal via which an audio signal to be amplified is received, and a second terminal connected to an inverting input terminal of the operational amplifier; and a feedback resistor having a first terminal connected to an inverting input terminal of the operational amplifier, and a second terminal connected to the output terminal. A reference voltage source generates a bias voltage Vb, and supplies it to the non-inverting input terminal. A discharging path includes a discharging resistor and a first switch arranged in series between an output terminal of the reference voltage source and an fixed voltage terminal. A second switch is arranged between the output terminal of the operational amplifier and a node on the discharging path where the electric potential is higher than it is at the discharging resistor.
摘要翻译：通过输出电容器驱动耳机的反相放大器包括：运算放大器，具有接收要放大的音频信号的第一端子的输入电阻器和连接到运算放大器的反相输入端子的第二端子; 以及反馈电阻器，其具有连接到运算放大器的反相输入端子的第一端子和连接到输出端子的第二端子。参考电压源产生偏置电压Vb，并将其提供给非反相输入端。放电路径包括放电电阻器和串联布置在参考电压源的输出端子和固定电压端子之间的第一开关。第二开关设置在运算放大器的输出端子和放电路径上的电位高于放电电阻器处的节点之间。

19. 发明申请

US20100066436A1 ACTIVE-TIME DEPENDENT BIAS CURRENT GENERATION FOR SWITCHED-CAPACITOR CIRCUITS 有权
标题翻译：用于开关电容器电路的主动偏置偏置电流产生
公开(公告)号：US20100066436A1
公开(公告)日：2010-03-18
申请号：US12212486
申请日：2008-09-17
申请人： Chun C. Lee
发明人： Chun C. Lee
IPC分类号： H03K3/01
CPC分类号： H03F3/45183 , H03F1/0261 , H03F3/005 , H03F2203/45166 , H03F2203/45244 , H03F2203/45321 , H03F2203/45461 , H03F2203/45466 , H03F2203/45471 , H03F2203/45512 , H03F2203/45551 , H03F2203/45561 , H03F2203/45616 , H03F2203/45674
摘要： Exemplary embodiments of the disclosure include adaptively generating a bias current for a switched-capacitor circuit. An exemplary apparatus includes a first phase signal and a second phase signal operating at a sampling rate. An asserted time of the first phase signal and an asserted time of the second phase signal are separated by a predefined non-overlap time. The apparatus also includes a switched-capacitor circuit with a plurality of switched capacitors operably coupled to the first phase signal and the second phase signal. An amplifier is operably coupled to the switched-capacitor circuit and has a response time inversely proportional to an adaptive bias current. A bias generator is coupled to the amplifier and operates to modify the adaptive bias current responsive to the asserted time of the first phase signal.
摘要翻译：本公开的示例性实施例包括自适应地产生开关电容器电路的偏置电流。示例性装置包括以采样率操作的第一相位信号和第二相位信号。第一相位信号的断言时间和第二相位信号的断言时间被隔开预定义的非重叠时间。该装置还包括具有可操作地耦合到第一相位信号和第二相位信号的多个开关电容器的开关电容器电路。放大器可操作地耦合到开关电容器电路并具有与自适应偏置电流成反比的响应时间。偏置发生器耦合到放大器并且操作以响应于第一相位信号的断言时间来修改自适应偏置电流。

20. 发明授权

US07372330B2 Variable gain amplifier 有权
标题翻译：可变增益放大器
公开(公告)号：US07372330B2
公开(公告)日：2008-05-13
申请号：US11484591
申请日：2006-07-12
申请人： Hiroyasu Yoshizawa , Satoshi Hanazawa
发明人： Hiroyasu Yoshizawa , Satoshi Hanazawa
IPC分类号： H03F3/45
CPC分类号： H03F3/45085 , H03F1/26 , H03F3/45475 , H03F3/72 , H03F2200/372 , H03F2203/45066 , H03F2203/45138 , H03F2203/45288 , H03F2203/45352 , H03F2203/45366 , H03F2203/45561 , H03F2203/7236 , H03G1/007 , H03G7/001
摘要： A variable gain amplifier of such configuration that can yield continuously and log-linearly variable gains in relation to control voltage and, at the same time, that does not use an attenuator, an element which otherwise would entail cause of increased noise. The amplifier includes a plurality of gm amplifiers connected in parallel with input signal, exponential multipliers connected respectively to the gm amplifiers, a control section to vary the multiplication coefficient of the exponential multipliers according to the external gain control signal, and an I-V converter circuit to aggregate current output after multiplication and convert the aggregated current output to voltage. A continuously variable gain characteristic can be obtained without the use of an attenuator but by varying multiplication coefficient according to control voltage.
摘要翻译：这种配置的可变增益放大器可以产生与控制电压相关的连续和对数线性可变增益，并且同时不产生衰减器，否则将导致增加噪声的元件。放大器包括与输入信号并联连接的多个gm放大器，分别连接到gm放大器的指数乘法器，根据外部增益控制信号改变指数乘法器的乘法系数的控制部分，以及IV转换器电路累加电流输出后乘以并将电流输出转换为电压。可以在不使用衰减器的情况下获得连续可变增益特性，而是根据控制电压改变乘法系数。

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