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1. 发明授权

US11626799B2 Converter circuit, corresponding device and method 有权
公开(公告)号：US11626799B2
公开(公告)日：2023-04-11
申请号：US17393243
申请日：2021-08-03
申请人： STMicroelectronics S.r.l.
发明人： Alessandro Bertolini , Alberto Cattani , Stefano Ramorini , Alessandro Gasparini
IPC分类号： H02M3/158 , H02M1/00
摘要： A converter circuit includes first and second electronic switches coupled at an intermediate node, with an inductor coupled between the intermediate node and an output node. Switching drive control circuitry causes the first and the second electronic switch to switch between a conductive state and a non-conductive state. The drive control circuitry includes a first feedback signal path to control switching of the first and the second electronic switch as a function of the difference between a feedback signal indicative of the signal at the output node and a reference value. A second feedback signal path includes a low-pass filter coupled to the output node and configured to provide a low-pass filtered feedback signal resulting from low-pass filtering of the output signal. The second feedback signal path compensates the feedback signal as a function of the difference between the low-pass filtered feedback signal and a respective reference value.

2. 发明授权

US10439569B2 Sensing circuit, corresponding amplifier, apparatus and method 有权
公开(公告)号：US10439569B2
公开(公告)日：2019-10-08
申请号：US15984942
申请日：2018-05-21
申请人： STMicroelectronics S.r.l.
发明人： Stefano Ramorini , Alberto Cattani , Germano Nicollini , Alessandro Gasparini
IPC分类号： H03F3/21 , H03F3/217 , H03F3/45 , G01R1/30 , G01R19/00
摘要： A switching amplifier, such as a Class D amplifier, includes a current sensing circuit. The current sensing circuit is formed by replica loop circuits that are selectively coupled to corresponding output inverter stages of the switching amplifier. The replica loop circuits operated to produce respective replica currents of the output currents generated by the output inverter stages. A sensing circuitry is coupled to receive the replica currents from the replica loop circuits and operates to produce an output sensing signal as a function of the respective replica currents.

3. 发明申请

US20160344235A1 ENHANCED-EFFICIENCY ENERGY-SCAVENGING INTERFACE, METHOD FOR OPERATING THE ENERGY-SCAVENGING INTERFACE, AND ENERGY-SCAVENGING SYSTEM COMPRISING THE ENERGY-SCAVENGING INTERFACE 审中-公开
标题翻译：提高能源消耗接口，操作能量消耗接口的方法，以及包含能量消耗接口的能量扫描系统
公开(公告)号：US20160344235A1
公开(公告)日：2016-11-24
申请号：US15226473
申请日：2016-08-02
申请人： STMicroelectronics S.r.l.
发明人： Stefano Ramorini , Alessandro Gasparini , Alberto Cattani
IPC分类号： H02J15/00 , H02M7/04
CPC分类号： H02J15/00 , H02M3/1588 , H02M7/04 , H02M7/217 , H02M2001/0009 , H02N2/181 , Y02B70/1466
摘要： An energy-scavenging interface includes first and second switches connected in series between an input and reference, and third and fourth switches connected in series between the input and an output. A control circuit closes the first and second switches and opens the third switch for a first time interval to store charge in a storage element. A scaled copy of a peak value of the charging current is obtained. The control circuit then opens the first switch and closes the third and fourth switches to generate an output signal as long as the value in current of the output signal is higher than the value of said scaled copy of the peak value.
摘要翻译：能量清除界面包括串联连接在输入和参考之间的第一和第二开关以及串联连接在输入和输出之间的第三和第四开关。控制电路关闭第一和第二开关并打开第一开关第一时间间隔以将电荷存储在存储元件中。获得充电电流的峰值的缩放副本。只要输出信号的电流值高于峰值的缩放副本的值，控制电路就打开第一开关并闭合第三和第四开关以产生输出信号。

4. 发明授权

US09461504B2 Enhanced efficiency energy-scavenging interface, method for operating the energy-scavenging interface, and energy-scavenging system comprising the energy-scavenging interface 有权
标题翻译：提高效率能量清除界面，操作能量清除界面的方法，以及包括能量清除界面的能量清除系统
公开(公告)号：US09461504B2
公开(公告)日：2016-10-04
申请号：US14036751
申请日：2013-09-25
申请人： STMicroelectronics S.r.l.
发明人： Stefano Ramorini , Alessandro Gasparini , Alberto Cattani
IPC分类号： H02J15/00 , H02M3/158 , H02N2/18 , H02M7/217 , H02M1/00
CPC分类号： H02J15/00 , H02M3/1588 , H02M7/04 , H02M7/217 , H02M2001/0009 , H02N2/181 , Y02B70/1466
摘要： An energy-scavenging interface includes first and second switches connected in series between an input and reference, and third and fourth switches connected in series between the input and an output. A control circuit closes the first and second switches and opens the third switch for a first time interval to store charge in a storage element. A scaled copy of a peak value of the charging current is obtained. The control circuit then opens the first switch and closes the third and fourth switches to generate an output signal as long as the value in current of the output signal is higher than the value of said scaled copy of the peak value.
摘要翻译：能量清除界面包括在输入和参考之间串联连接的第一和第二开关以及串联连接在输入和输出之间的第三和第四开关。控制电路关闭第一和第二开关并打开第一开关第一时间间隔以将电荷存储在存储元件中。获得充电电流的峰值的缩放副本。只要输出信号的电流值高于峰值的缩放副本的值，控制电路就打开第一开关并闭合第三和第四开关以产生输出信号。

5. 发明申请

US20150260542A1 ENERGY SCAVENGING STEP-COUNTER DEVICE AND RELATED STEP-COUNTING METHOD 审中-公开
标题翻译：能量扫描步进计数器装置及相关步骤计数方法
公开(公告)号：US20150260542A1
公开(公告)日：2015-09-17
申请号：US14638392
申请日：2015-03-04
申请人： STMicroelectronics S.r.l.
发明人： Alessandro Gasparini , Stefano Ramorini , Alberto Cattani
IPC分类号： G01C22/00 , F03G7/08 , G01D5/12
CPC分类号： G01C22/006 , F03G5/06 , F03G7/08 , G01D5/12 , H02J50/00
摘要： A step-detection device for detecting the steps taken by a user (for counting) includes a transducer that generates an electrical transduction signal as a function of step mechanical activity. An energy scavenging system, coupled to the transducer, generates electrical energy starting from the mechanical activity in order to supply an output supply signal in response to the electrical transduction signal. A voltage-regulator generates a regulated supply signal from the output supply signal. A transmission stage, supplied by the voltage-regulating stage, initiates a wireless transmission indicative of step detection, that wireless transmission causing an increment of a step count at a remote location. The transmission stage makes the wireless transmission when the regulated supply signal exceeds a first threshold. Completion of the wireless transmission is indicative of the occurrence of a step.
摘要翻译：用于检测用户步骤（用于计数）的步进检测装置包括产生作为步进机械活动的函数的电转换信号的换能器。耦合到换能器的能量清除系统从机械活动开始产生电能，以响应于电转换信号提供输出电源信号。电压调节器从输出电源信号产生稳定的电源信号。由电压调节级提供的发送级发起指示步进检测的无线传输，该无线传输导致远程位置的步数增加。当调节电源信号超过第一阈值时，发送级进行无线传输。无线传输的完成表示步骤的发生。

6. 发明申请

US20140088917A1 STEP COUNTER DEVICE WITH ENERGY-SCAVENGING FUNCTIONALITY, AND STEP-COUNTING METHOD 有权
标题翻译：具有能量增强功能的步骤计数器装置和步进计数方法
公开(公告)号：US20140088917A1
公开(公告)日：2014-03-27
申请号：US14034764
申请日：2013-09-24
申请人： STMicroelectronics S.r.l.
发明人： Alessandro Gasparini , Stefano Ramorini , Alberto Cattani
IPC分类号： G01C22/00
CPC分类号： G01C22/006 , A43B3/0015 , H02M7/219
摘要： A step-counter device detects and counts user steps. The device includes a transducer configured to generate an electrical transduction signal in response to user stepping. An energy-scavenging system is coupled to the transducer to generate a power supply voltage in response to the electrical transduction signal. A processing unit is powered by the power supply voltage. The processing unit is further configured to sense the electrical transduction signal and determine whether a user step has occurred and in response to that determination increment a step counter.
摘要翻译：步进计数器装置检测和计数用户步骤。该装置包括被配置为响应于用户步进产生电传导信号的换能器。能量清除系统耦合到换能器以响应于电传导信号产生电源电压。处理单元由电源电压供电。处理单元还被配置为感测电转换信号并且确定用户步骤是否已经发生，并且响应于该确定增量而进行步进计数器。

7. 发明授权

US11075580B2 Current sensing system comprising a scaled transistor and methods of operation thereof 有权
公开(公告)号：US11075580B2
公开(公告)日：2021-07-27
申请号：US16849034
申请日：2020-04-15
申请人： STMicroelectronics S.r.l.
发明人： Roberto Pio Baorda , Stefano Ramorini , Paolo Angelini
IPC分类号： H02M3/158 , H02M1/08 , H02M1/00
摘要： A sensor comprises a first transistor comprising a first control terminal, a second transistor that is a scaled version of and connected to the first transistor and comprising a second control terminal, an operational amplifier connected to both the first and second transistors and configured to generate an intermediate signal at an output terminal, a variable current source, a current mirror, a measurement circuit, and a chopper circuit. The first and second control terminals are configured to receive a drive signal. The variable current source is configured to generate a first variable current as a function of the intermediate signal. The current mirror configured to apply a second variable current proportional to the first variable current to the second transistor. The measurement circuit is configured to generate a measurement signal indicative of current through the first transistor. The chopper circuit is configured to shift an offset of the operation amplifier.

8. 发明授权

US10566940B2 Sensing circuit, corresponding amplifier, apparatus and method 有权
公开(公告)号：US10566940B2
公开(公告)日：2020-02-18
申请号：US16539478
申请日：2019-08-13
申请人： STMicroelectronics S.r.l.
发明人： Stefano Ramorini , Alberto Cattani , Germano Nicollini , Alessandro Gasparini
IPC分类号： H03F3/21 , H03F3/217 , H03F3/45
摘要： A switching amplifier, such as a Class D amplifier, includes a current sensing circuit. The current sensing circuit is formed by replica loop circuits that are selectively coupled to corresponding output inverter stages of the switching amplifier. The replica loop circuits operated to produce respective replica currents of the output currents generated by the output inverter stages. A sensing circuitry is coupled to receive the replica currents from the replica loop circuits and operates to produce an output sensing signal as a function of the respective replica currents.

9. 发明授权

US10326418B2 Large input swing circuit, corresponding device and method 有权
公开(公告)号：US10326418B2
公开(公告)日：2019-06-18
申请号：US15982548
申请日：2018-05-17
申请人： STMicroelectronics S.r.l.
发明人： Stefano Ramorini , Alberto Cattani , Alessandro Gasparini , Germano Nicollini
IPC分类号： H03M1/66 , H03F3/45 , H03M1/12 , H03M1/68 , H03M1/74 , H03M1/76
摘要： A circuit includes an input transistor pair with first and second input transistors, the first input transistor having a control terminal configured to receive an input signal and a cascode transistor pair including a first and second cascode transistors having a common control node. A bias circuit has a bias input configured to receive the input signal and a first bias output coupled to the common node of the first and second cascode transistors. The bias circuit includes a signal tracking circuit operating to generate the first bias output to track the input signal. A pair of load transistors are coupled to the input transistor pair and biased by a second bias output of the bias circuit.

10. 发明授权

US10211722B2 Energy scavenging interface with impedance matching, method for impedance matching of the energy scavenging interface, and energy scavenging system using the energy scavenging interface 有权
公开(公告)号：US10211722B2
公开(公告)日：2019-02-19
申请号：US15132958
申请日：2016-04-19
申请人： STMicroelectronics S.r.l.
发明人： Stefano Ramorini , Alessandro Gasparini , Alberto Cattani
IPC分类号： H02M3/04 , H02J50/10 , H02J7/02
摘要： An energy harvesting interface receives an electrical signal from an inductive transducer and outputs a supply signal. An input branch includes a first switch and a second switch connected in series between a first input terminal and an output terminal, and further a third switch and a fourth switch connected in series between a second input terminal and the output terminal. A first electrical-signal-detecting device coupled across the second switch detects a first threshold value of an electric storage current in the inductor of the transducer. A second electrical-signal-detecting device coupled across the fourth switch detects whether the electric supply current that flows through the fourth switch reaches a second threshold value lower than the first threshold value.

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