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公开(公告)号：US09820141B2
公开(公告)日：2017-11-14
申请号：US15279765
申请日：2016-09-29
Applicant: STMicroelectronics S.r.l.
Inventor： Ranieri Guerra , Roberto Larosa , Giuseppe Palmisano
IPC: H04B7/00 , H04B1/06 , H04W8/22 , H04B17/318
CPC classification number: H04W8/22 , H03D1/2218 , H04B1/1615 , H04B17/318 , H04W52/0245
Abstract: A receiver for digital signals includes a radiofrequency stage. A feedback loop controls an amplitude of a modulated radiofrequency signal passing through the radiofrequency stage as a function of a comparison of a baseband signal with a reference value. A baseband stage includes an RC network cascaded to the radiofrequency stage and coupled to a baseband detector that generates the baseband signal. The feedback loop includes a circuit for detecting a range of variation of the comparison. The amplitude of the modulated radiofrequency signal is controlled as a function of an end value (e.g., maximum or minimum) of the detected range of variation. A switching circuit operates to selectively short circuit a resistive component of the RC network during receiver start-up.
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公开(公告)号：US20170110970A1
公开(公告)日：2017-04-20
申请号：US15157711
申请日：2016-05-18
Applicant: STMicroelectronics S.r.l. , STMicroelectronics (Tours) SAS
Inventor： Roberto Larosa , Giulio Zoppi , Laurent Gonthier
CPC classification number: H02M3/33507 , H02M1/08 , H02M1/081 , H02M1/36 , H02M1/42 , H02M7/062 , H02M7/125 , H02M2001/0006
Abstract: A rectifier bridge circuit includes a first SCR/IGBT switch and a second SCR/IGBT switch coupled to a circuit input to receive an ac input voltage. The first and second SCR/IGBT switches are alternatively switchable to generate a rectified voltage at a circuit output. Control currents coupled to control terminals of the first and second SCR/IGBT switches are power supply sourced from an auxiliary dc source generated by rectifying the ac input voltage. The control currents are generated by current sources coupled between the auxiliary dc source and the control terminals of the first and second SCR/IGBT switches. The current sources are selectively activatable to produce gating currents for switching on and off the first and second SCR/IGBT switches. A controller unit is provided to control the current sources via level shifter circuits. The control implements progressive conduction time of the first and second SCR/IGBT switches so as to provide inrush current limitation.
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公开(公告)号：US20150194876A1
公开(公告)日：2015-07-09
申请号：US14664962
申请日：2015-03-23
Applicant: STMicroelectronics S.r.l.
Inventor： Roberto Larosa , Giulio Zoppi , Natale Aiello
CPC classification number: H02M1/36 , H02J9/005 , H02M3/33523 , H02M2001/0006 , H02M2001/0032 , Y02B70/16
Abstract: A power supply includes a power supply circuit and a power-on circuit controlling transitioning of the power supply circuit to a turned-on state. The power-on circuit includes a code driver, a controller coupled to the power supply circuit and code driver, and a transducer to detect a wireless control signal and generate an enable signal based thereupon. A transistor has a first conduction terminal coupled to the code driver, a second conduction terminal coupled to the controller, and a control terminal coupled to the transducer to receive the enable signal so the transistor switches based thereupon. The code driver detects a code embedded in the wireless control signal based upon switching of the transistor, and generates a power on signal for the controller based upon the code. The controller causes the power supply circuit to transition from the turned-off state to the turned-on state based upon the power on signal.
Abstract translation: 电源包括电源电路和控制电源电路转换为导通状态的通电电路。 上电电路包括代码驱动器，耦合到电源电路和代码驱动器的控制器，以及用于检测无线控制信号并基于此产生使能信号的换能器。 晶体管具有耦合到代码驱动器的第一导电端子，耦合到控制器的第二导电端子，以及耦合到换能器的控制端子，以接收使能信号，从而晶体管基于此进行开关。 代码驱动器基于晶体管的切换来检测嵌入在无线控制信号中的代码，并且基于代码生成用于控制器的通电信号。 控制器基于电源接通信号使电源电路从截止状态转换到导通状态。
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公开(公告)号：US09071158B2
公开(公告)日：2015-06-30
申请号：US13969637
申请日：2013-08-19
Applicant: STMicroelectronics S.r.l.
Inventor： Roberto Larosa , Giulio Zoppi , Natale Aiello
CPC classification number: H02M3/33507 , H02J9/005 , H02M1/36 , H02M3/33523 , H02M2001/0006 , H02M2001/0032 , Y02B70/16
Abstract: A power supply apparatus includes a power supply circuit and a power-on circuit. The power-on circuit detects a remotely transmitted control signal and causes a transition of the power supply circuit to a turned on state. The power-on circuit includes a transducer configured to provide a power-on signal in response to the remote control signal. The transducer triggers transition to the turned on state through a switch driven by the power-on signal output from the transducer and arranged to supply a power supply circuit enable signal. A DC blocking capacitor is connected between an output of the transducer and a control terminal of the switch.
Abstract translation: 电源装置包括电源电路和通电电路。 上电电路检测到远程发送的控制信号，并使电源电路转换到导通状态。 上电电路包括被配置为响应于遥控信号而提供通电信号的换能器。 换能器通过由从换能器输出的上电信号驱动的开关触发转换到导通状态，并被布置成提供电源电路使能信号。 隔离电容器连接在换能器的输出端和开关的控制端子之间。
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公开(公告)号：US20140056040A1
公开(公告)日：2014-02-27
申请号：US13969637
申请日：2013-08-19
Applicant: STMicroelectronics S.r.l.
Inventor： Roberto Larosa , Giulio Zoppi , Natale Aiello
IPC: H02M1/36
CPC classification number: H02M3/33507 , H02J9/005 , H02M1/36 , H02M3/33523 , H02M2001/0006 , H02M2001/0032 , Y02B70/16
Abstract: A power supply apparatus includes a power supply circuit and a power-on circuit. The power-on circuit detects a remotely transmitted control signal and causes a transition of the power supply circuit to a turned on state. The power-on circuit includes a transducer configured to provide a power-on signal in response to the remote control signal. The transducer triggers transition to the turned on state through a switch driven by the power-on signal output from the transducer and arranged to supply a power supply circuit enable signal. A DC blocking capacitor is connected between an output of the transducer and a control terminal of the switch.
Abstract translation: 电源装置包括电源电路和通电电路。 上电电路检测到远程发送的控制信号，并使电源电路转换到导通状态。 上电电路包括被配置为响应于遥控信号而提供通电信号的换能器。 换能器通过由从换能器输出的上电信号驱动的开关触发转换到导通状态，并被布置成提供电源电路使能信号。 隔离电容器连接在换能器的输出端和开关的控制端子之间。
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Patent Agency Ranking
公开(公告)号：US10284107B2
公开(公告)日：2019-05-07
申请号：US14956543
申请日：2015-12-02
Applicant: STMicroelectronics (Tours) SAS , STMicroelectronics S.r.l.
Inventor： Laurent Gonthier , Roberto Larosa , Giulio Zoppi
Abstract: An AC/DC converter includes a first terminal and a second terminal to receive an AC voltage and a third terminal and a fourth terminal to deliver a DC voltage. A rectifying bridge is provided in the converter. A controllable switching or rectifying element has a control terminal configured to receive a control current. A first switch is coupled between a supply voltage and the control terminal to inject the control current. A second switch is coupled between the control terminal and a reference voltage to extract the control current. The first and second switches are selectively actuated by a control circuit.
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公开(公告)号：US09979298B2
公开(公告)日：2018-05-22
申请号：US15157711
申请日：2016-05-18
Applicant: STMicroelectronics S.r.l. , STMicroelectronics (Tours) SAS
Inventor： Roberto Larosa , Giulio Zoppi , Laurent Gonthier
CPC classification number: H02M3/33507 , H02M1/08 , H02M1/081 , H02M1/36 , H02M1/42 , H02M7/062 , H02M7/125 , H02M2001/0006
Abstract: A rectifier bridge circuit includes a first SCR/IGBT switch and a second SCR/IGBT switch coupled to a circuit input to receive an ac input voltage. The first and second SCR/IGBT switches are alternatively switchable to generate a rectified voltage at a circuit output. Control currents coupled to control terminals of the first and second SCR/IGBT switches are power supply sourced from an auxiliary dc source generated by rectifying the ac input voltage. The control currents are generated by current sources coupled between the auxiliary dc source and the control terminals of the first and second SCR/IGBT switches. The current sources are selectively activatable to produce gating currents for switching on and off the first and second SCR/IGBT switches. A controller unit is provided to control the current sources via level shifter circuits. The control implements progressive conduction time of the first and second SCR/IGBT switches so as to provide inrush current limitation.
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公开(公告)号：US09912227B2
公开(公告)日：2018-03-06
申请号：US14964818
申请日：2015-12-10
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Giulio Zoppi , Roberto Larosa , Natale Aiello
CPC classification number: H02M1/36 , H02M7/04 , H02M2001/0032 , Y02B70/16
Abstract: A device for driving a power supply start-up circuit may include a logic unit for storing an operating state of equipment, where the logic unit is activatable by a start-up signal reaching a start-up threshold. The device may also include a detector, where the detector provides a signal to the logic unit indicating a drop in the signal below a drop threshold. The detector may enable the logic unit to continue operating in the presence of a failure of a power supply to store the operating state of the equipment upon occurrence of the failure of the power supply. In addition, the device may include a start-up circuit sensitive to a power supply signal, where the start-up circuit is activatable by the power supply signal as restored after the failure, and the start-up circuit may provide the start-up signal reaching the start-up threshold upon the power supply signal being restored.
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公开(公告)号：US20180035283A1
公开(公告)日：2018-02-01
申请号：US15729852
申请日：2017-10-11
Applicant: STMicroelectronics S.r.l.
Inventor： Ranieri Guerra , Roberto Larosa , Giuseppe Palmisano
CPC classification number: H04W8/22 , H03D1/2218 , H04B1/1615 , H04B17/318 , H04W52/0245 , Y02D70/00 , Y02D70/40
Abstract: A receiver for digital signals includes a radiofrequency stage. A feedback loop controls a variable attenuation resistance applied to a modulated radiofrequency signal passing through the radiofrequency stage as a function of a comparison of an amplitude of the modulated radiofrequency signal with a reference value. A baseband stage includes an RC network cascaded to the radiofrequency stage and coupled to a baseband detector that generates the baseband signal. The feedback loop includes a circuit for detecting a range of variation of the comparison. The value of the variable resistance is controlled as a function of an end value (e.g., maximum or minimum) of the detected range of variation.
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公开(公告)号：US20170265062A1
公开(公告)日：2017-09-14
申请号：US15279765
申请日：2016-09-29
Applicant: STMicroelectronics S.r.l.
Inventor： Ranieri Guerra , Roberto Larosa , Giuseppe Palmisano
IPC: H04W8/22 , H04B17/318
CPC classification number: H04W8/22 , H03D1/2218 , H04B1/1615 , H04B17/318 , H04W52/0245
Abstract: A receiver for digital signals includes a radiofrequency stage. A feedback loop controls an amplitude of a modulated radiofrequency signal passing through the radiofrequency stage as a function of a comparison of a baseband signal with a reference value. A baseband stage includes an RC network cascaded to the radiofrequency stage and coupled to a baseband detector that generates the baseband signal. The feedback loop includes a circuit for detecting a range of variation of the comparison. The amplitude of the modulated radiofrequency signal is controlled as a function of an end value (e.g., maximum or minimum) of the detected range of variation. A switching circuit operates to selectively short circuit a resistive component of the RC network during receiver start-up.
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