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公开(公告)号：US20190324063A1
公开(公告)日：2019-10-24
申请号：US16380610
申请日：2019-04-10
Applicant: STMicroelectronics S.r.l.
Inventor： Roberto Pio Baorda , Stefano Ramorini , Paolo Angelini
Abstract: A sensor includes a first transistor including a first terminal and a second terminal defining a current path, and a first gate terminal configured to receive a drive signal. The sensor further includes a sensor circuit configured to generate a measurement signal indicative of a first current flowing through the first transistor. The sensor circuit includes a second transistor including a third terminal, a fourth terminal, and a second gate terminal. The third terminal is connected to the first terminal of the first transistor. The second gate terminal is configured to receive the drive signal. The second transistor is a scaled version of the first transistor. The sensor circuit further includes an operational amplifier, a variable current source, a current mirror, and a measurement circuit.
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公开(公告)号：US09680323B2
公开(公告)日：2017-06-13
申请号：US14505029
申请日：2014-10-02
Applicant: STMicroelectronics S.r.l.
Inventor： Stefano Ramorini , Alessandro Gasparini , Alberto Cattani
CPC classification number: H02J7/007 , H02J7/0052 , H02J7/345 , H02J2007/0059 , H02M3/158 , H02M2001/009
Abstract: An energy harvesting circuit receives an input voltage from a transducer and uses a single inductor operating in a DC-DC converter charging mode to generate charging current at a first output coupled to an energy storage device where a supply voltage is stored. The energy harvesting circuit further receives the supply voltage from the energy storage device and uses the same single inductor operating in a DC-DC converter regulating mode to generate load current at a second output where a regulated load voltage is provided. The energy harvesting circuit switches between the charging mode and the regulating mode in accordance with a discontinuous mode (DCM) control process.
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23.发明授权Step counter device with energy-scavenging functionality, and step-counting method 有权具有能量清除功能的步进式装置和步进计数方法公开(公告)号：US09587959B2
公开(公告)日：2017-03-07
申请号：US14034764
申请日：2013-09-24
Applicant: STMicroelectronics S.r.l.
Inventor： Alessandro Gasparini , Stefano Ramorini , Alberto Cattani
CPC classification number: G01C22/006 , A43B3/0015 , H02M7/219
Abstract: 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.
Abstract translation: 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。
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24.发明授权High-efficiency energy harvesting interface and corresponding energy harvesting system 有权高效能量采集接口和相应的能量采集系统公开(公告)号：US09564800B2
公开(公告)日：2017-02-07
申请号：US15163394
申请日：2016-05-24
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Stefano Ramorini , Alessandro Gasparini , Alberto Cattani
Abstract: An electrical-energy harvesting system envisages a transducer for converting energy from an environmental energy source into a transduced signal, an electrical energy harvesting interface for receiving the transduced signal and for supplying a harvesting signal, and an energy storage element coupled to the electrical energy harvesting interface for receiving the harvesting signal. The electrical-energy harvesting system also includes a voltage converter connected to the electrical energy harvesting interface for generating a regulated voltage. The harvesting interface samples an open-circuit voltage value of the transduced signal, generates an optimized voltage value starting from the open-circuit voltage value, and generates an upper threshold voltage and a lower threshold voltage on the basis of the optimized voltage value. The harvesting interface controls the voltage converter in switching mode so that the harvesting signal has a value between the upper and lower threshold voltages in at least one operating condition.
Abstract translation: 电能收集系统设想用于将来自环境能源的能量转换成转换信号的换能器，用于接收转换信号并用于提供收获信号的电能收集界面，以及耦合到电能收集的能量存储元件 用于接收收获信号的接口。 电能收集系统还包括连接到电能收集界面的电压转换器，用于产生调节电压。 采集接口采样转换信号的开路电压值，从开路电压值开始产生优化的电压值，并根据优化电压值生成上阈值电压和下阈值电压。 采集接口以开关模式控制电压转换器，使得收集信号在至少一个操作条件下具有在上限和下限阈值电压之间的值。
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25.发明申请ENERGY SCAVENGING INTERFACE WITH IMPEDANCE MATCHING, METHOD FOR IMPEDANCE MATCHING OF THE ENERGY SCAVENGING INTERFACE, AND ENERGY SCAVENGING SYSTEM USING THE ENERGY SCAVENGING INTERFACE 审中-公开具有阻尼匹配的能量扫描接口，能量消除接口的阻抗匹配方法和使用能量扫描接口的能量扫描系统公开(公告)号：US20160322830A1
公开(公告)日：2016-11-03
申请号：US15132958
申请日：2016-04-19
Applicant: STMicroelectronics S.r.l.
Inventor： Stefano Ramorini , Alessandro Gasparini , Alberto Cattani
Abstract: 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.
Abstract translation: 能量收集界面从感应传感器接收电信号并输出电源信号。 输入分支包括串联连接在第一输入端和输出端之间的第一开关和第二开关，以及串联连接在第二输入端和输出端之间的第三开关和第四开关。 耦合在第二开关上的第一电信号检测装置检测换能器的电感器中的蓄电电流的第一阈值。 耦合在第四开关上的第二电信号检测装置检测流过第四开关的电源电流是否达到低于第一阈值的第二阈值。
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Patent Agency Ranking
公开(公告)号：US09329649B2
公开(公告)日：2016-05-03
申请号：US13683937
申请日：2012-11-21
Applicant: STMicroelectronics S.r.l.
Inventor： Alessandro Gasparini , Andrea Donadel , Stefano Ramorini
CPC classification number: G06F1/26 , Y10T307/696
Abstract: A dual input single output (DISO) regulator, includes a comparator configured to receive a first and second power supply signal and to provide a first compared signal; a first switch configured to couple the first power supply source to an intermediate node, and a second switch configured to couple the second power supply source to the intermediate node; a control logic circuit, coupled to the first comparator, to the first switch, and to the second switch, and configured to receive the compared signal to control the first and the second switch in a first and second operating condition based on the compared signal. The intermediate node being biased by an intermediate power supply signal correlated to the first or second power supply signal. The DISO regulator includes a low-dropout regulator, configured to provide a regulated power supply signal based on the intermediate power supply signal.
Abstract translation: 双输入单输出（DISO）调节器包括比较器，被配置为接收第一和第二电源信号并提供第一比较信号; 配置为将第一电源耦合到中间节点的第一开关和被配置为将第二电源耦合到中间节点的第二开关; 耦合到第一比较器的控制逻辑电路连接到第一开关和第二开关，并且被配置为接收比较的信号，以基于所比较的信号在第一和第二操作条件下控制第一和第二开关。 中间节点被与第一或第二电源信号相关的中间电源信号偏置。 DISO调节器包括一个低压差稳压器，配置成基于中间电源信号提供稳压电源信号。
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公开(公告)号：US12212235B2
公开(公告)日：2025-01-28
申请号：US17671163
申请日：2022-02-14
Applicant: STMicroelectronics S.r.l.
Inventor： Alessandro Bertolini , Alberto Cattani , Stefano Ramorini , Alessandro Gasparini
Abstract: A control circuit operates to control a switching stage of an electronic converter. The control circuit includes: first terminals providing drive signals to electronic switches of the switching stage; a second terminal receiving from a feedback circuit a first feedback signal proportional to a converter output voltage; and a third terminal configured to receive from a current sensor a second feedback signal proportional to an inductor current. A driver circuit provides the drive signals as a function of a PWM signal generated by a generator circuit as a function of the first and second feedback signals, a reference voltage and a slope compensation signal. A mode selection signal is generated as a function of a comparison between the input voltage and the output voltage. A feed-forward compensation circuit is configured to source and/or sink a compensation current as a function of a variation in the mode selection signal.
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28.发明授权公开(公告)号：US12062984B2
公开(公告)日：2024-08-13
申请号：US17863828
申请日：2022-07-13
Applicant: STMicroelectronics S.r.l.
Inventor： Stefano Ramorini , Giuseppe Calderoni
IPC: H02M3/158 , G09G3/3233 , H02M1/00
CPC classification number: H02M3/1582 , G09G3/3233 , H02M1/0009 , G09G2330/028
Abstract: A first node of converter circuit receives an input, provides an output at a second node, and has a third node coupled by an inductance to ground. A first switch has a current path between the first and third nodes and a second switch has a current path between the third and second nodes. The converter circuit operates in a first state (with the first switch conductive and the second switch non-conductive) and a second state (with the first switch non-conductive and the second switch conductive). Current flowing through the first switch is sensed during the first state to produce a sensing signal indicative of inductance current. The sensing signal is averaged to produce an averaged sensing signal indicative of an average value of the current. The averaged sensing signal is then weighted by a time during which the second switch is conductive to produce a weighted signal.
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公开(公告)号：US11531365B2
公开(公告)日：2022-12-20
申请号：US17380542
申请日：2021-07-20
Applicant: STMicroelectronics S.r.l.
Inventor： Stefano Ramorini , Germano Nicollini
Abstract: A bandgap circuit includes a supply node as well as a first and second bipolar transistors having jointly coupled base terminal at a bandgap node providing a bandgap voltage. First and second current generators are coupled to the supply node and supply mirrored first and second currents, respectively, to first and second circuit nodes. A third circuit node is coupled to the first bipolar transistor via a first resistor and coupled to ground via a second resistor, respectively. The third circuit node is also coupled to the second bipolar transistor so that the second resistor is traversed by a current which is the sum of the currents through the bipolar transistors. A decoupling stage intermediate the current generators and the bipolar transistors includes first and second cascode decoupling transistors having jointly coupled control terminals receiving a bias voltage sensitive to the bandgap voltage.
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公开(公告)号：US11099595B2
公开(公告)日：2021-08-24
申请号：US16950267
申请日：2020-11-17
Applicant: STMicroelectronics S.r.l.
Inventor： Stefano Ramorini , Germano Nicollini
Abstract: A bandgap circuit includes a supply node as well as a first and second bipolar transistors having jointly coupled base terminal at a bandgap node providing a bandgap voltage. First and second current generators are coupled to the supply node and supply mirrored first and second currents, respectively, to first and second circuit nodes. A third circuit node is coupled to the first bipolar transistor via a first resistor and coupled to ground via a second resistor, respectively. The third circuit node is also coupled to the second bipolar transistor so that the second resistor is traversed by a current which is the sum of the currents through the bipolar transistors. A decoupling stage intermediate the current generators and the bipolar transistors includes first and second cascode decoupling transistors having jointly coupled control terminals receiving a bias voltage sensitive to the bandgap voltage.
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