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1.发明申请公开(公告)号：US20130127536A1
公开(公告)日：2013-05-23
申请号：US13677496
申请日：2012-11-15
Inventor： Marco Orazio Cavallaro , Serge Ramet , Tiziano Chiarillo
IPC: H03F3/45
CPC classification number: H03F3/45 , H03F3/45183 , H03F3/45659
Abstract: A fully differential operational amplifier includes a differential input stage, at least one output stage and a common-mode feedback circuit connected with the input stage. The differential input stage includes a differential pair of transistors and a bias circuit for the differential pair of transistors. A start-up circuit operates to detect an operating condition of the differential pair of transistors of the input stage and in response thereto turn on the bias circuit.
Abstract translation: 全差分运算放大器包括差分输入级，至少一个输出级和与输入级相连的共模反馈电路。 差分输入级包括差分对晶体管和用于差分对晶体管的偏置电路。 启动电路用于检测输入级的差分对的晶体管的工作状态，并响应于此来启动偏置电路。
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公开(公告)号：US09231540B2
公开(公告)日：2016-01-05
申请号：US14304589
申请日：2014-06-13
Inventor： MarcoOrazio Cavallaro , Serge Ramet , Tiziano Chiarillo
CPC classification number: H03F3/45179 , H03F1/308 , H03F3/3013 , H03F3/45183 , H03F2203/45054
Abstract: A class AB operational amplifier includes an input stage, an output stage and a level shifter stage to control the quiescent current of the output stage and to transfer the signal from the input stage to the output stage, and a control circuit of the level shifter stage. The control circuit includes a transistor differential pair having a differential input terminals and the differential voltage at the differential terminals of the differential pair controls the level shifter stage.
Abstract translation: AB类运算放大器包括输入级，输出级和电平移位级，以控制输出级的静态电流并将信号从输入级传送到输出级，以及电平转换级的控制电路 。 控制电路包括具有差分输入端的晶体管差分对，差分对的差分端的差分电压控制电平转换级。
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3.发明授权公开(公告)号：US08854136B2
公开(公告)日：2014-10-07
申请号：US13677496
申请日：2012-11-15
Inventor： Marco Orazio Cavallaro , Serge Ramet , Tiziano Chiarillo
IPC: H03F3/45
CPC classification number: H03F3/45 , H03F3/45183 , H03F3/45659
Abstract: A fully differential operational amplifier includes a differential input stage, at least one output stage and a common-mode feedback circuit connected with the input stage. The differential input stage includes a differential pair of transistors and a bias circuit for the differential pair of transistors. A start-up circuit operates to detect an operating condition of the differential pair of transistors of the input stage and in response thereto turn on the bias circuit.
Abstract translation: 全差分运算放大器包括差分输入级，至少一个输出级和与输入级相连的共模反馈电路。 差分输入级包括差分对晶体管和用于差分对晶体管的偏置电路。 启动电路用于检测输入级的差分对的晶体管的工作状态，并响应于此来启动偏置电路。
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公开(公告)号：US20180152158A1
公开(公告)日：2018-05-31
申请号：US15609736
申请日：2017-05-31
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Michel Ayraud , Serge Ramet , Serge Pontarollo
CPC classification number: H03G3/30 , H01P1/22 , H03F1/565 , H03F3/191 , H03F2200/211 , H03F2200/294 , H03G3/3042 , H03G3/3057 , H03G2201/106
Abstract: The transmission device comprising a transmit stage configured to deliver a transmission signal on an input-output node of an antenna and comprising a power transistor coupled to the input-output node and configured to amplify a signal to be transmitted. The device comprises a receive stage configured to receive a reception signal on the input-output node and comprising an attenuator circuit configured to attenuate the reception signal. The attenuator circuit comprising the power transistor and a control circuit able to place the power transistor in a triode mode.
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公开(公告)号：US10359800B2
公开(公告)日：2019-07-23
申请号：US15693214
申请日：2017-08-31
Inventor： Serge Ramet , Sandrine Nicolas , Danika Perrin , Cedric Rechatin
Abstract: An integrated circuit includes a first stage configured to receive a bias current. A current regulation loop includes a transimpedance amplifier having a first transistor, and a second transistor having a gate coupled to a gate of the first transistor. The first transistor and the second transistor are configured to compare the bias current with a reference current, and to generate a regulation voltage on an output node of the transimpedance amplifier. A capacitor is coupled between the output node of the transimpedance amplifier and the gates of the first and second transistors.
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Patent Agency Ranking
公开(公告)号：US10594263B2
公开(公告)日：2020-03-17
申请号：US15983287
申请日：2018-05-18
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Flavia Amorosa , Serge Ramet , Daniel Subiela
Abstract: In an embodiment, a differential amplifier includes: an input stage; an output stage coupled to the input stage, the output stage having first and second output terminals; and a feedback circuit coupled to the output stage, where the feedback circuit is configured to dynamically adjust a bias current of the output stage based on voltages of the first and second output terminals.
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公开(公告)号：US20180270762A1
公开(公告)日：2018-09-20
申请号：US15692012
申请日：2017-08-31
Inventor： Michel Ayraud , Serge Ramet , Philippe Level
CPC classification number: H04W52/0274 , H03B5/1212 , H03B5/1278 , H03B21/025 , H03D7/166 , H03G3/3052 , H04B1/16 , H04B17/327 , Y02D70/00
Abstract: A local oscillator device includes an oscillator module including a first inductive element and a capacitive element coupled in parallel with the inductive element. A frequency divider is coupled to the oscillator module for delivering a local oscillator signal. The local oscillator device includes an autotransformer including the first inductive element and two second inductive elements respectively coupled to the terminals of the first inductive element and to two output terminals of the autotransformer, the output terminals being further coupled to input terminals of the frequency divider.
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公开(公告)号：US20180239384A1
公开(公告)日：2018-08-23
申请号：US15693214
申请日：2017-08-31
Inventor： Serge Ramet , Sandrine Nicolas , Danika Perrin , Cedric Rechatin
CPC classification number: G05F3/262 , G05F1/46 , H03F3/16 , H03F3/195 , H03F2200/294
Abstract: An integrated circuit includes a first stage configured to receive a bias current. A current regulation loop includes a transimpedance amplifier having a first transistor, and a second transistor having a gate coupled to a gate of the first transistor. The first transistor and the second transistor are configured to compare the bias current with a reference current, and to generate a regulation voltage on an output node of the transimpedance amplifier. A capacitor is coupled between the output node of the transimpedance amplifier and the gates of the first and second transistors.
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公开(公告)号：US10979063B2
公开(公告)日：2021-04-13
申请号：US16862297
申请日：2020-04-29
Applicant: STMicroelectronics (Grenoble 2) SAS
Inventor： Sandrine Nicolas , Damien Giot , Serge Ramet , Reiner Welk
Abstract: An electronic circuit comprises capacitive structures that are connected to one or a plurality of nodes, where each of the capacitive structures is formed by a capacitor or by a plurality of capacitors electrically connected in parallel. The electronic circuit further comprises additional capacitors that are each connected to the one or plurality of nodes. For at least one distance between capacitors, the capacitive structures have a same average of values defined, for each capacitor of each capacitive structure, by the number of capacitors of the circuit connected to the one or plurality of nodes and located at the distance from the capacitor of the capacitive structure.
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公开(公告)号：US10524209B2
公开(公告)日：2019-12-31
申请号：US15692012
申请日：2017-08-31
Inventor： Michel Ayraud , Serge Ramet , Philippe Level
Abstract: A local oscillator device includes an oscillator module including a first inductive element and a capacitive element coupled in parallel with the inductive element. A frequency divider is coupled to the oscillator module for delivering a local oscillator signal. The local oscillator device includes an autotransformer including the first inductive element and two second inductive elements respectively coupled to the terminals of the first inductive element and to two output terminals of the autotransformer, the output terminals being further coupled to input terminals of the frequency divider.
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