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1. 发明授权

US10520554B2 Voltage detector circuit 有权
公开(公告)号：US10520554B2
公开(公告)日：2019-12-31
申请号：US16269331
申请日：2019-02-06
申请人： STMicroelectronics (Alps) SAS , STMicroelectronics (Grenoble 2) SAS
发明人： Vratislav Michal , Michel Ayraud
IPC分类号： H03F3/45 , G01R31/3835 , H03F1/02 , G01R31/36 , G01R17/02 , G01R1/30
摘要： A circuit includes an amplifier having a first power terminal configured to be coupled to a supply voltage and a second power terminal configured to be coupled to a reference potential. The circuit further includes a first impedance element coupled between a first input terminal of the amplifier and a first output terminal of the amplifier. The circuit additionally includes a second impedance element coupled between the first input terminal and the reference potential. The amplifier is configured to output a first voltage at a second output terminal of the amplifier in response to the supply voltage being greater than an output voltage at the first output terminal of the amplifier. The amplifier is further configured to output a second voltage at the second output terminal of the amplifier in response to the supply voltage being less than the output voltage at the first output terminal of the amplifier.

2. 发明申请

US20180191318A1 Voltage Detector Circuit 审中-公开
公开(公告)号：US20180191318A1
公开(公告)日：2018-07-05
申请号：US15393485
申请日：2016-12-29
申请人： STMicroelectronics (Alps) SAS , STMicroelectronics (Grenoble 2) SAS
发明人： Vratislav Michal , Michel Ayraud
IPC分类号： H03F3/45 , H03F1/02 , G01R1/30 , G01R31/36
CPC分类号： H03F3/45179 , G01R1/30 , G01R31/362 , G01R31/3682 , H03F1/0205 , H03F3/45183 , H03F2200/129 , H03F2200/261 , H03F2200/471 , H03F2203/45151
摘要： A circuit includes an amplifier having a first power terminal configured to be coupled to a supply voltage and a second power terminal configured to be coupled to a reference potential. The circuit further includes a first impedance element coupled between a first input terminal of the amplifier and a first output terminal of the amplifier. The circuit additionally includes a second impedance element coupled between the first input terminal and the reference potential. The amplifier is configured to output a first voltage at a second output terminal of the amplifier in response to the supply voltage being greater than an output voltage at the first output terminal of the amplifier. The amplifier is further configured to output a second voltage at the second output terminal of the amplifier in response to the supply voltage being less than the output voltage at the first output terminal of the amplifier.

3. 发明申请

US20180152158A1 ATTENUATOR DEVICE IN A RADIO FREQUENCY TRANSMISSION STAGE 审中-公开
公开(公告)号：US20180152158A1
公开(公告)日：2018-05-31
申请号：US15609736
申请日：2017-05-31
申请人： STMicroelectronics (Grenoble 2) SAS
发明人： Michel Ayraud , Serge Ramet , Serge Pontarollo
IPC分类号： H03G3/30 , H01P1/22
CPC分类号： H03G3/30 , H01P1/22 , H03F1/565 , H03F3/191 , H03F2200/211 , H03F2200/294 , H03G3/3042 , H03G3/3057 , H03G2201/106
摘要： 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.

4. 发明授权

US11515899B2 Calibration of an RF attenuator 有权
公开(公告)号：US11515899B2
公开(公告)日：2022-11-29
申请号：US17648993
申请日：2022-01-26
申请人： STMicroelectronics (Grenoble 2) SAS
发明人： Michel Ayraud , Philippe Level
IPC分类号： H04B14/06 , H04B1/00 , H04B1/30 , H04B1/16
摘要： The present disclosure relates to a circuit including an input terminal configured to receive a first signal at a first frequency; a demodulation chain connected to the input terminal and including a low-noise amplifier having an input coupled to the terminal; a controllable variable impedance connected between a first node and a node configured to receive a reference potential, the first node being connected to the input terminal and/or to the amplifier input; and a current source configured to deliver a current at the first frequency to the first node.

5. 发明申请

US20180152142A1 METHOD AND DEVICE FOR SELF-BIASED AND SELF-REGULATED COMMON-MODE AMPLIFICATION 审中-公开
公开(公告)号：US20180152142A1
公开(公告)日：2018-05-31
申请号：US15589814
申请日：2017-05-08
申请人： STMicroelectronics (Grenoble 2) SAS
发明人： Michel Ayraud , Sandrine Nicolas
IPC分类号： H03F1/02 , H03F3/193 , H03F1/22 , H04B1/40
CPC分类号： H03F1/0205 , H03F1/223 , H03F1/308 , H03F3/193 , H03F3/3022 , H03F2200/06 , H03F2200/09 , H03F2200/129 , H03F2200/18 , H03F2200/21 , H03F2200/294 , H03F2200/42 , H03F2200/451 , H03F2200/462 , H03F2200/481 , H03F2200/498 , H03F2200/534 , H03F2200/555 , H03F2203/30027 , H03F2203/30031 , H03F2203/30039 , H03F2203/30084 , H03F2203/30111 , H03F2203/30117 , H04B1/40
摘要： An amplification device includes an amplification stage having a transconductance amplification transistor and an output terminal. A biasing circuit is configured to bias in common mode the output terminal to a bias potential obtained on the basis of a voltage present between the gate and the source of the amplification transistor, and to compensate for parasitic variations of the voltage present between the gate and the source of the amplification transistor.

6. 发明授权

US09496827B2 Radio frequency signal power amplification circuit 有权
标题翻译：射频信号功率放大电路
公开(公告)号：US09496827B2
公开(公告)日：2016-11-15
申请号：US14956826
申请日：2015-12-02
申请人： STMicroelectronics (Grenoble 2) SAS
发明人： Michel Ayraud
IPC分类号： H03F1/14 , H03F3/04 , H03F1/02 , H03F3/217 , H03F3/21 , H03F3/193
CPC分类号： H03F1/0205 , H03F1/0222 , H03F3/193 , H03F3/211 , H03F3/2171 , H03F3/2176 , H03F2200/451 , H03F2203/21103
摘要： An RF amplifier includes a branch with an inductor series-connected with a capacitor between first and second power supply nodes, a junction point between the inductor and capacitor forming an output node. A further branch includes a MOS transistor series-connected with a switch between the output node and the second power supply node. The switch has a control node coupled to receive a first input signal. The MOS transistor has a gate coupled to receive a second input signal. A control circuit applies the power supply voltage as the second input signal when a frequency/phase-modulated signal is applied as the first input signal. The control circuit further applies a variable signal as the second input signal when a radio frequency signal of constant frequency, phase, and amplitude is applied as the first input signal, and in this mode the MOS transistor is constrained to operate as a current source.
摘要翻译： RF放大器包括具有与第一和第二电源节点之间的电容器串联连接的电感器的分支，电感器和电容器之间的结点形成输出节点。另外的分支包括与输出节点和第二电源节点之间的开关串联连接的MOS晶体管。开关具有耦合以接收第一输入信号的控制节点。 MOS晶体管具有耦合以接收第二输入信号的栅极。当施加频率/相位调制信号作为第一输入信号时，控制电路将电源电压作为第二输入信号。当施加恒定频率，相位和幅度的射频信号作为第一输入信号时，控制电路还施加可变信号作为第二输入信号，并且在该模式中，MOS晶体管被限制为作为电流源工作。

7. 发明授权

US10236842B2 Voltage detector circuit 有权
公开(公告)号：US10236842B2
公开(公告)日：2019-03-19
申请号：US15393485
申请日：2016-12-29
申请人： STMicroelectronics (Alps) SAS , STMicroelectronics (Grenoble 2) SAS
发明人： Vratislav Michal , Michel Ayraud
IPC分类号： H03F3/45 , H03F1/02 , G01R1/30 , G01R31/36
摘要： A circuit includes an amplifier having a first power terminal configured to be coupled to a supply voltage and a second power terminal configured to be coupled to a reference potential. The circuit further includes a first impedance element coupled between a first input terminal of the amplifier and a first output terminal of the amplifier. The circuit additionally includes a second impedance element coupled between the first input terminal and the reference potential. The amplifier is configured to output a first voltage at a second output terminal of the amplifier in response to the supply voltage being greater than an output voltage at the first output terminal of the amplifier. The amplifier is further configured to output a second voltage at the second output terminal of the amplifier in response to the supply voltage being less than the output voltage at the first output terminal of the amplifier.

8. 发明申请

US20180270762A1 LOW POWER LOCAL OSCILLATOR 审中-公开
公开(公告)号：US20180270762A1
公开(公告)日：2018-09-20
申请号：US15692012
申请日：2017-08-31
申请人： STMicroelectronics (Alps) SAS , STMicroelectronics (Grenoble 2) SAS
发明人： Michel Ayraud , Serge Ramet , Philippe Level
IPC分类号： H04W52/02 , H04B17/327 , H04B1/16 , H03D7/16 , H03G3/30 , H03B21/02
CPC分类号： H04W52/0274 , H03B5/1212 , H03B5/1278 , H03B21/025 , H03D7/166 , H03G3/3052 , H04B1/16 , H04B17/327 , Y02D70/00
摘要： 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.

9. 发明申请

US20220278701A1 CALIBRATION OF AN RF ATTENUATOR 有权
公开(公告)号：US20220278701A1
公开(公告)日：2022-09-01
申请号：US17648993
申请日：2022-01-26
申请人： STMicroelectronics (Grenoble 2) SAS
发明人： Michel Ayraud , Philippe Level
IPC分类号： H04B1/00 , H04B1/16 , H04B1/30
摘要： The present disclosure relates to a circuit including an input terminal configured to receive a first signal at a first frequency; a demodulation chain connected to the input terminal and including a low-noise amplifier having an input coupled to the terminal; a controllable variable impedance connected between a first node and a node configured to receive a reference potential, the first node being connected to the input terminal and/or to the amplifier input; and a current source configured to deliver a current at the first frequency to the first node.

10. 发明授权

US10524209B2 Low power local oscillator 有权
公开(公告)号：US10524209B2
公开(公告)日：2019-12-31
申请号：US15692012
申请日：2017-08-31
申请人： STMicroelectronics (Alps) SAS , STMicroelectronics (Grenoble 2) SAS
发明人： Michel Ayraud , Serge Ramet , Philippe Level
IPC分类号： H04B1/40 , H04W52/02 , H03B5/12 , H04B17/327 , H03B21/02 , H03D7/16 , H03G3/30 , H04B1/16
摘要： 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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