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1. 发明授权

US09941850B1 Fully differential operational amplifier 有权
公开(公告)号：US09941850B1
公开(公告)日：2018-04-10
申请号：US15284150
申请日：2016-10-03
申请人： STMICROELECTRONICS S.R.L.
发明人： Luca Giuffredi , Andrea Boni , Marco Ronchi
IPC分类号： H03F3/45 , H03F1/26 , H03F1/34
CPC分类号： H03F3/45632 , H03F1/14 , H03F1/26 , H03F3/45188 , H03F3/45659 , H03F2200/153 , H03F2200/555
摘要： A fully differential operational amplifier is provided. The amplifier has input nodes and includes a differential input stage for receiving input signals over the input nodes and providing output signals on first and second intermediary nodes. The amplifier includes a fully differential amplification stage having positive and negative inputs coupled to the first and second intermediary nodes, respectively. The amplifier includes a first compensation transistor having conduction terminals coupled to the first intermediary node and a first node, and a control terminal coupled to a negative output of the fully differential amplification stage. The amplifier includes a second compensation transistor having conduction terminals coupled to the second intermediary node and a second node, and a control terminal coupled to a positive output of the fully differential amplification stage. The amplifier includes positive and negative output stages for providing amplifier outputs and feeding the outputs back to the amplifier.

2. 发明申请

US20180097488A1 FULLY DIFFERENTIAL OPERATIONAL AMPLIFIER 有权
公开(公告)号：US20180097488A1
公开(公告)日：2018-04-05
申请号：US15284150
申请日：2016-10-03
申请人： STMICROELECTRONICS S.R.L.
发明人： Luca GIUFFREDI , Andrea BONI , Marco RONCHI
IPC分类号： H03F3/45 , H03F1/26 , H03F1/34
CPC分类号： H03F3/45632 , H03F1/14 , H03F1/26 , H03F3/45188 , H03F3/45659 , H03F2200/153 , H03F2200/555
摘要： A fully differential operational amplifier is provided. The amplifier has input nodes and includes a differential input stage for receiving input signals over the input nodes and providing output signals on first and second intermediary nodes. The amplifier includes a fully differential amplification stage having positive and negative inputs coupled to the first and second intermediary nodes, respectively. The amplifier includes a first compensation transistor having conduction terminals coupled to the first intermediary node and a first node, and a control terminal coupled to a negative output of the fully differential amplification stage. The amplifier includes a second compensation transistor having conduction terminals coupled to the second intermediary node and a second node, and a control terminal coupled to a positive output of the fully differential amplification stage. The amplifier includes positive and negative output stages for providing amplifier outputs and feeding the outputs back to the amplifier.

3. 发明授权

US09685923B2 Communication over a voltage isolation barrier 有权
公开(公告)号：US09685923B2
公开(公告)日：2017-06-20
申请号：US14836424
申请日：2015-08-26
申请人： Infineon Technologies Americas Corp.
发明人： Anthony B. Candage , Aswath Krishnan Krishnamoorthy
IPC分类号： H04B7/02 , H04L1/02 , H03G3/20 , H04B15/00 , H03F3/45 , H03F1/26 , H04L25/02 , H04L25/08 , H03F1/32 , H03G3/30
CPC分类号： H03F1/26 , H03F1/3211 , H03F3/45 , H03F3/45179 , H03F3/45632 , H03F2200/06 , H03F2200/189 , H03F2200/453 , H03F2203/45562 , H03G3/20 , H03G3/3052 , H04B15/00 , H04L25/0266 , H04L25/0276 , H04L25/085
摘要： A transmitter circuit comprises: an input, an encoder circuit, and a transmitter. During operation, the transmitter circuit receives an input signal. The encoder circuit encodes the received input signal into an encoded signal. The encoder circuit produces the encoded signal: i) to indicate changing states of the input signal, and ii) to include a supplemental transient signal with respect to the received input signal. The transmitter transmits the encoded signal from an output of the first circuit over a link to a second circuit such as a receiver circuit. A receiver decodes the encoded signal to reproduce a rendition of the input signal to control remote power supply circuitry. Presence of the supplemental transient signal in the encoded signal indicates to the receiver circuit that the first circuit actively transmits the output signal even though there may not be any change to a current state of the input signal.

4. 发明授权

US09654071B2 Preamplifier circuit for a microelectromechanical capacitive acoustic transducer 有权
公开(公告)号：US09654071B2
公开(公告)日：2017-05-16
申请号：US15087630
申请日：2016-03-31
申请人： STMICROELECTRONICS S.R.L.
发明人： Filippo David , Igino Padovani
IPC分类号： H03F99/00 , H03F3/45 , H03F3/187 , H04R19/01 , G05F3/30 , H03F3/185 , H04R3/00 , H04R19/04 , H03F1/32
CPC分类号： H03F3/45179 , G05F3/30 , H03F1/3211 , H03F3/185 , H03F3/187 , H03F3/45 , H03F3/45183 , H03F3/45192 , H03F3/45475 , H03F3/45632 , H03F2200/03 , H03F2200/18 , H03F2200/213 , H03F2200/372 , H03F2200/447 , H03F2200/555 , H03F2203/45136 , H03F2203/45244 , H03F2203/45392 , H03F2203/45456 , H03F2203/45628 , H03F2203/45631 , H04R3/007 , H04R19/01 , H04R19/04 , H04R2201/003
摘要： Described herein is a preamplifier circuit for a capacitive acoustic transducer provided with a MEMS detection structure that generates a capacitive variation as a function of an acoustic signal to be detected, starting from a capacitance at rest; the preamplifier circuit is provided with an amplification stage that generates a differential output signal correlated to the capacitive variation. In particular, the amplification stage is an input stage of the preamplifier circuit and has a fully differential amplifier having a first differential input (INP) directly connected to the MEMS detection structure and a second differential input (INN) connected to a reference capacitive element, which has a value of capacitance equal to the capacitance at rest of the MEMS detection structure and fixed with respect to the acoustic signal to be detected; the fully differential amplifier amplifies the capacitive variation and generates the differential output signal.

5. 发明授权

US09628036B2 Sensor signal processing using translinear mesh 有权
公开(公告)号：US09628036B2
公开(公告)日：2017-04-18
申请号：US14083265
申请日：2013-11-18
申请人： Infineon Technologies AG
发明人： Dieter Draxelmayr , Simone Fabbro
IPC分类号： H03F3/45 , G01D5/347
CPC分类号： H03F3/45632 , G01D5/34715 , G01D5/3473
摘要： Apparatuses and methods are described where input signals are supplied to a translinear mesh. In some embodiments an output of the translinear mesh is regulated to a desired value.

6. 发明授权

US09571051B2 Reducing common mode transconductance in instrumentation amplifiers 有权
标题翻译：降低仪表放大器中的共模跨导
公开(公告)号：US09571051B2
公开(公告)日：2017-02-14
申请号：US14674220
申请日：2015-03-31
申请人： Texas Instruments Incorporated
发明人： Charles Parkhurst , Hector Torres
IPC分类号： H03F3/04 , H03F3/45
CPC分类号： H03F3/45928 , H03F3/45179 , H03F3/45475 , H03F3/45632 , H03F2200/261 , H03F2203/45116 , H03F2203/45522 , H03F2203/45528
摘要： An instrumentation amplifier (INA) that includes a first amplifier and a second amplifier coupled to the first amplifier. The first amplifier includes a first transistor. The first amplifier is configured to receive a positive phase signal of a differential signal. The second amplifier includes a second transistor and is configured to receive a negative phase signal of the differential signal. The first and second transistors each include a gate, source, and drain. The first transistor drain is connected to the second transistor drain.
摘要翻译：一种仪表放大器（INA），包括耦合到第一放大器的第一放大器和第二放大器。第一放大器包括第一晶体管。第一放大器被配置为接收差分信号的正相位信号。第二放大器包括第二晶体管，并且被配置为接收差分信号的负相位信号。第一和第二晶体管各自包括栅极，源极和漏极。第一晶体管漏极连接到第二晶体管漏极。

7. 发明申请

US20160065317A1 METHODS AND CIRCUITRY TO TRIM COMMON MODE TRANSIENT CONTROL CIRCUITRY 有权
标题翻译： TRIM通用模式瞬态控制电路的方法与电路
公开(公告)号：US20160065317A1
公开(公告)日：2016-03-03
申请号：US14835973
申请日：2015-08-26
申请人： International Rectifer Corporation
发明人： Anthony B. Candage
IPC分类号： H04B15/00 , H03F3/45 , H03G3/20 , H03F1/26
CPC分类号： H03F1/26 , H03F1/3211 , H03F3/45 , H03F3/45179 , H03F3/45632 , H03F2200/06 , H03F2200/189 , H03F2200/453 , H03F2203/45562 , H03G3/20 , H03G3/3052 , H04B15/00 , H04L25/0266 , H04L25/0276 , H04L25/085
摘要： Embodiments herein include a replica communication path and monitor circuit to provide increased common mode transient immunity. As its name suggests, the monitor circuit monitors the replica communication path and produces an adjustment signal (common mode transient adjustment signal) to cancel presence of a common mode transient signal in one or more other communication paths conveying data signals.
摘要翻译：本文的实施例包括复制通信路径和监视电路，以提供增加的共模瞬时抗扰度。顾名思义，监视电路监视复制通信路径并产生调整信号（共模瞬态调整信号），以消除传送数据信号的一个或多个其他通信路径中的共模瞬态信号的存在。

8. 发明授权

US09130520B2 Differential output circuit and semiconductor device 有权
标题翻译：差分输出电路和半导体器件
公开(公告)号：US09130520B2
公开(公告)日：2015-09-08
申请号：US13971943
申请日：2013-08-21
申请人： RENESAS ELECTRONICS CORPORATION
发明人： Masafumi Mitsuishi , Masayasu Komyo , Souji Sunairi
IPC分类号： H03K19/0175 , H03K19/094 , H03F3/45 , H03F1/52 , H04L25/02
CPC分类号： G05F3/205 , G05F3/24 , H01L27/0207 , H01L27/0629 , H01L29/0653 , H03F1/523 , H03F3/45179 , H03F3/45188 , H03F3/45632 , H04L25/0272 , H04L25/028
摘要： A highly reliable circuit is realized using the transistors having a lower withstand voltage. There are provided a differential pair including a first and a second transistor which respectively receive input signals having mutually reversed phases; a third and a fourth transistor respectively cascode-coupled to the first and the second transistor, and having the same conductivity type as the first and the second transistor; a first and a second output terminal coupled to respective drains of the third and the fourth transistor; and a voltage divider circuit which divides an intermediate potential between respective potentials of the first and the second output terminal and supplies the divided potential to gates of the third and the fourth transistor.
摘要翻译：使用具有较低耐受电压的晶体管实现高度可靠的电路。提供了一个差分对，其包括分别接收具有相互反相的输入信号的第一和第二晶体管; 分别与第一和第二晶体管并联耦合的第三和第四晶体管，并且具有与第一和第二晶体管相同的导电类型; 耦合到第三和第四晶体管的相应漏极的第一和第二输出端子; 以及分压器电路，其分割第一和第二输出端子的各个电位之间的中间电位，并将分压电位提供给第三和第四晶体管的栅极。

9. 发明授权

US09118287B2 Adaptive amplification circuit 有权
标题翻译：自适应放大电路
公开(公告)号：US09118287B2
公开(公告)日：2015-08-25
申请号：US13970618
申请日：2013-08-20
申请人： NOVATEK Microelectronics Corp.
发明人： Xie-Ren Hsu , Chia-Hung Lin , Wei-Hsiang Hung
IPC分类号： H03F3/45 , H03F1/02
CPC分类号： H03F3/45076 , H03F1/0261 , H03F3/45632 , H03F2203/45244 , H03F2203/45248
摘要： An adaptive amplification circuit is provided, which includes an operational amplifier comprising a variable bias current source for providing a variable bias current for the operational amplifier, an equivalent circuit of the operational amplifier for receiving an input voltage and generating an output voltage according to the input voltage, and a bias control unit for generating a bias control signal to the variable bias current source according to the output voltage so as to adjust the variable bias current.
摘要翻译：提供一种自适应放大电路，其包括运算放大器，其包括用于为运算放大器提供可变偏置电流的可变偏置电流源，用于接收输入电压并根据输入产生输出电压的运算放大器的等效电路电压和偏置控制单元，用于根据输出电压向可变偏置电流源产生偏置控制信号，以便调整可变偏置电流。

10. 发明授权

US09071365B2 Optical signal processing device and optical signal processing method 有权
标题翻译：光信号处理装置和光信号处理方法
公开(公告)号：US09071365B2
公开(公告)日：2015-06-30
申请号：US13980851
申请日：2011-12-22
申请人： Yasuyuki Suzuki
发明人： Yasuyuki Suzuki
IPC分类号： H04B10/06 , H04B10/61 , H03F3/08 , H03F3/45
CPC分类号： H04B10/6165 , H03F3/08 , H03F3/087 , H03F3/45179 , H03F3/45183 , H03F3/45632 , H03F2200/336 , H03F2203/45702 , H03F2203/45722
摘要： An optical hybrid (100) generates a first optical signal by causing local light to interfere with a received optical signal which is received from an outside with a first phase difference. In addition, the optical hybrid (100) generates a second optical signal by causing the local light to interfere with the received optical signal with a second phase difference shifted by π from the first phase difference. Two photoelectric conversion elements (150) photoelectrically convert the first optical signal and the second optical signal, respectively, and generate a first electrical signal and a second electrical signal. A differential trans-impedance amplifier (200) includes a direct-current component correction unit (210), a trans-impedance circuit (240), and a variable gain amplifier (250). The direct-current component correction unit (210) reduces a difference of the magnitude of a direct-current component of the first electrical signal and the magnitude of a direct-current component of the second electrical signal.
摘要翻译：光混合器（100）通过使局部光与第一相位差从外部接收到的接收光信号相互干扰来产生第一光信号。此外，光混合器（100）通过使局部光以第二相位差移位＆pgr来干扰所接收的光信号来产生第二光信号; 从第一相差。两个光电转换元件（150）分别对第一光信号和第二光信号进行光电转换，并产生第一电信号和第二电信号。差动跨阻放大器（200）包括直流分量校正单元（210），跨阻抗电路（240）和可变增益放大器（250）。直流分量校正单元（210）减小第一电信号的直流分量的大小和第二电信号的直流分量的大小之差。

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