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公开(公告)号：WO0245261A3
公开(公告)日：2003-05-30
申请号：PCT/FR0103788
申请日：2001-11-29
Applicant: ST MICROELECTRONICS SA , MOURET MICHEL , SABUT MARC , VAN ZANTEN FRANCOIS
Inventor： MOURET MICHEL , SABUT MARC , VAN ZANTEN FRANCOIS
IPC: H03G7/06
CPC classification number: H03G7/06
Abstract: The invention concerns a controllable set of current sources (6') comprising several output terminals (Si), a first transistor (T1i') associated with each first output terminal, the current (li) on each first output terminal depending on the current passing through the first transistor, and control means (8) designed, in response to a predetermined control voltage variation (VAB), to make each first transistor (T1i') gradually conductive then gradually non-conductive, wherein the first transistors are MOS transistors, and wherein each first output terminal (Si) is associated with a current mirror formed by MOS transistors (T2i, T3i), said current mirror supplying to the first output terminal a current dependent on the current passing through the first transistor.
Abstract translation: 本发明涉及一组可控的电流源（6'），其包括多个输出端子（Si），与每个第一输出端子相关联的第一晶体管（T1i'），每个第一输出端子上的电流（li）取决于电流通过 通过第一晶体管和响应于预定控制电压变化（VAB）而设计的控制装置（8）使得每个第一晶体管（T1i'）逐渐导通，然后逐渐不导电，其中第一晶体管是MOS晶体管， 并且其中每个第一输出端子（Si）与由MOS晶体管（T2i，T3i）形成的电流镜相关联，所述电流镜向第一输出端子提供取决于通过第一晶体管的电流的电流。
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公开(公告)号：WO0249210A3
公开(公告)日：2003-09-18
申请号：PCT/FR0104007
申请日：2001-12-14
Applicant: ST MICROELECTRONICS SA , MOURET MICHEL , SABUT MARC , VAN ZANTEN FRANCOIS
Inventor： MOURET MICHEL , SABUT MARC , VAN ZANTEN FRANCOIS
IPC: H03G7/08
CPC classification number: H03G7/08
Abstract: The invention concerns a variable-gain differential input and output amplifier comprising an attenuation network (AT1, AT2), receiving an input voltage (V1in-V2in) and supplying on several outputs (O1i, O2i) voltages each of which is equal to the attenuated input voltage; differential transconductance elements (G1i, G2i) each having a first input connected to an output (O1i, O2i) of the attenuation network, and producing first (l ) and second (l +) positive currents and first (1 ) and second (1 ) negative currents, a set of current sources (10) for controlling transconductance of each transconductance element based on an analog control signal (Vcom); and an output block (26) converting the first and second input currents into a differential output voltage (V1out-V2out) and supplying to the second input of each transconductance element a feedback voltage dependent on the output voltage.
Abstract translation: 本发明涉及一种可变增益差分输入和输出放大器，包括衰减网络（AT1，AT2），接收输入电压（V1in-V2in）并提供多个输出（O1i，O2i）电压，每个电压等于衰减 输入电压; 每个差分跨导元件（G1i，G2i）具有连接到衰减网络的输出（O1i，O2i）的第一输入，并且产生第一（1 + 1 + 1）和第二（1 + （1 <1->）和第二（1 <2->）负电流，用于基于模拟控制信号（Vcom）控制每个跨导元件的跨导的一组电流源（10）; 以及将所述第一和第二输入电流转换为差分输出电压（V1out-V2out）并将每个跨导元件的第二输入端提供给依赖于所述输出电压的反馈电压的输出块（26）。
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公开(公告)号：FR2818831A1
公开(公告)日：2002-06-28
申请号：FR0016932
申请日：2000-12-22
Applicant: ST MICROELECTRONICS SA
Inventor： MOURET MICHEL
Abstract: The invention concerns a frequency transposition device comprising a differential transducer unit (BTC) for converting an input signal into a differential current and including a differential stage with two transistors (Q1, Q2), and a current switching circuit (COM) controlled by a local oscillator signal and connected between the transducer circuit differential stage and the device output. The transducer unit (BTC) comprises a differential current mirror (Q30, Q50, Q40, Q60) connected between the transmitters of the transistors (Q1, Q2) of the differential stage and the current switching circuit (COM), a first pair of transistors (Q40, Q60) of the current mirror forming with the two transistors (Q1, Q2) of the differential stage two amplifiers, the collector of each transistor of the differential stage being polarised by a constant current source (SI1, SI2) connected between the collector and a terminal powering the device.
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公开(公告)号：FR2817408B1
公开(公告)日：2003-03-21
申请号：FR0015522
申请日：2000-11-30
Applicant: ST MICROELECTRONICS SA
Inventor： MOURET MICHEL , SABUT MARC , VAN ZANTEN FRANCOIS
Abstract: A controllable assembly of current sources includes several first output terminals, with a first transistor associated with each first output terminal, the current on each first output terminal depending on the current flowing through the first transistor, and a circuit configured, in response to a predetermined variation of a control voltage, to successively progressively turn on, then progressively turn off, each first transistor. The first transistors are MOS transistors, and each first output terminal is associated with a current mirror formed of MOS transistors, the current mirror providing to the first output terminal a current depending on the current flowing through the first transistor.
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公开(公告)号：FR2818466B1
公开(公告)日：2003-04-04
申请号：FR0016400
申请日：2000-12-15
Applicant: ST MICROELECTRONICS SA
Inventor： MOURET MICHEL , SABUT MARC , VAN ZANTEN FRANCOIS
Abstract: A variable-gain amplifier with a differential input and differential output, including an attenuator block, receiving an input voltage and providing, on several outputs, voltages, each of which is equal to the attenuated input voltage; differential transconductor elements, each having a first input connected to a respective output of the attenuator block, and generating first and second positive currents and first and second negative currents; a current source assembly adapted to controlling the transconductance of each differential transconductor element according to an analog control signal; and an output block converting first and second input currents into a differential output voltage and providing a second input of each differential transconductor element with a feedback voltage depending on the output voltage.
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Patent Agency Ranking
公开(公告)号：DE60134495D1
公开(公告)日：2008-07-31
申请号：DE60134495
申请日：2001-11-29
Applicant: ST MICROELECTRONICS SA
Inventor： MOURET MICHEL , SABUT MARC , VAN ZANTEN FRANCOIS
IPC: H03G7/06
Abstract: A controllable assembly of current sources includes several first output terminals, with a first transistor associated with each first output terminal, the current on each first output terminal depending on the current flowing through the first transistor, and a circuit configured, in response to a predetermined variation of a control voltage, to successively progressively turn on, then progressively turn off, each first transistor. The first transistors are MOS transistors, and each first output terminal is associated with a current mirror formed of MOS transistors, the current mirror providing to the first output terminal a current depending on the current flowing through the first transistor.
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公开(公告)号：DE60127724D1
公开(公告)日：2007-05-16
申请号：DE60127724
申请日：2001-12-14
Applicant: ST MICROELECTRONICS SA
Inventor： MOURET MICHEL , SABUT MARC , VAN ZANTEN FRANCOIS
Abstract: A variable-gain amplifier with a differential input and differential output, including an attenuator block, receiving an input voltage and providing, on several outputs, voltages, each of which is equal to the attenuated input voltage; differential transconductor elements, each having a first input connected to a respective output of the attenuator block, and generating first and second positive currents and first and second negative currents; a current source assembly adapted to controlling the transconductance of each differential transconductor element according to an analog control signal; and an output block converting first and second input currents into a differential output voltage and providing a second input of each differential transconductor element with a feedback voltage depending on the output voltage.
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公开(公告)号：FR2835667A1
公开(公告)日：2003-08-08
申请号：FR0201516
申请日：2002-02-07
Applicant: ST MICROELECTRONICS SA
Inventor： RAVATIN JEAN , MOURET MICHEL , VAN ZANTEN FRANCOIS
Abstract: The filter is set up by firstly operating in oscillator mode, during which time the oscillator frequency is measured. The characteristics of the filter are adjusted in order to match the required cut-off frequency for the filter, as closely as possible, within a determined degree of tolerance. The filter control procedure includes a phase in which the filtering circuit (FF10) operates as an oscillator, and the frequency of operation of the oscillator is determined. The characteristics of the device are then corrected, taking account of the measured frequency of oscillation and a predetermined relationship between the frequency of oscillation and the theoretical cut-off frequency of the filter. This gives the circuit a cut-off frequency which is equal to the frequency of oscillation, within a close tolerance. After this adjustment phase, the filter moves into a working phase, in which the filter carries out its filtering function. When the filter has an order greater than three, the filter operates in oscillator mode by re-looping to itself with phase inversion. When the filter operates with order less than three, an additional series filter is provided to form the oscillator loop.
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公开(公告)号：FR2818831B1
公开(公告)日：2003-03-21
申请号：FR0016932
申请日：2000-12-22
Applicant: ST MICROELECTRONICS SA
Inventor： MOURET MICHEL
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公开(公告)号：FR2835667B1
公开(公告)日：2006-08-04
申请号：FR0201516
申请日：2002-02-07
Applicant: ST MICROELECTRONICS SA
Inventor： RAVATIN JEAN , MOURET MICHEL , VAN ZANTEN FRANCOIS
Abstract: The filter is set up by firstly operating in oscillator mode, during which time the oscillator frequency is measured. The characteristics of the filter are adjusted in order to match the required cut-off frequency for the filter, as closely as possible, within a determined degree of tolerance. The filter control procedure includes a phase in which the filtering circuit (FF10) operates as an oscillator, and the frequency of operation of the oscillator is determined. The characteristics of the device are then corrected, taking account of the measured frequency of oscillation and a predetermined relationship between the frequency of oscillation and the theoretical cut-off frequency of the filter. This gives the circuit a cut-off frequency which is equal to the frequency of oscillation, within a close tolerance. After this adjustment phase, the filter moves into a working phase, in which the filter carries out its filtering function. When the filter has an order greater than three, the filter operates in oscillator mode by re-looping to itself with phase inversion. When the filter operates with order less than three, an additional series filter is provided to form the oscillator loop.
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