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公开(公告)号：US09568927B2
公开(公告)日：2017-02-14
申请号：US14270677
申请日：2014-05-06
Applicant: STMicroelectronics, Inc. , STMicroelectronics S.r.l.
Inventor： Tom Youssef , Alessandro Gasparini , Yamu Hu , Naren K. Sahoo , Anthony Junior Casillan
Abstract: A modulated digital input signal is passed through a conditioning circuit to generate a first input signal. An error amplifier circuit receives the first input signal and a second input signal, and controls the operation of a MOS transistor to generate an output signal that is current modulated. The output signal is sensed to generate a feedback signal. A switching circuit selectively applies the feedback signal as the second input signal in response to a transition of the modulated digital input signal from a first logic state to a second logic state. The switching circuit alternatively selectively applies a fixed reference signal as the second input signal to the error amplifier in response to a transition of the modulated digital input signal from the second logic state to the first logic state.
Abstract translation: 调制数字输入信号通过调理电路以产生第一输入信号。 误差放大器电路接收第一输入信号和第二输入信号，并且控制MOS晶体管的操作以产生电流调制的输出信号。 感测输出信号以产生反馈信号。 响应于调制的数字输入信号从第一逻辑状态到第二逻辑状态的转变，开关电路选择性地将反馈信号作为第二输入信号施加。 响应于调制的数字输入信号从第二逻辑状态到第一逻辑状态的转变，开关电路交替地选择性地将固定参考信号作为第二输入信号施加到误差放大器。
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公开(公告)号：US20150323944A1
公开(公告)日：2015-11-12
申请号：US14270677
申请日：2014-05-06
Applicant: STMICROELECTRONICS, INC. , STMICROELECTRONICS S.R.L.
Inventor： Tom Youssef , Alessandro Gasparini , Yamu Hu , Naren K. Sahoo , Anthony Junior Casillan
IPC: G05F1/10
Abstract: A modulated digital input signal is passed through a conditioning circuit to generate a first input signal. An error amplifier circuit receives the first input signal and a second input signal, and controls the operation of a MOS transistor to generate an output signal that is current modulated. The output signal is sensed to generate a feedback signal. A switching circuit selectively applies the feedback signal as the second input signal in response to a transition of the modulated digital input signal from a first logic state to a second logic state. The switching circuit alternatively selectively applies a fixed reference signal as the second input signal to the error amplifier in response to a transition of the modulated digital input signal from the second logic state to the first logic state.
Abstract translation: 调制数字输入信号通过调理电路以产生第一输入信号。 误差放大器电路接收第一输入信号和第二输入信号，并且控制MOS晶体管的操作以产生电流调制的输出信号。 感测输出信号以产生反馈信号。 响应于调制的数字输入信号从第一逻辑状态到第二逻辑状态的转变，开关电路选择性地将反馈信号作为第二输入信号施加。 响应于调制的数字输入信号从第二逻辑状态到第一逻辑状态的转变，开关电路交替地选择性地将固定参考信号作为第二输入信号施加到误差放大器。
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公开(公告)号：US11469665B2
公开(公告)日：2022-10-11
申请号：US17147123
申请日：2021-01-12
Applicant: STMicroelectronics S.r.l.
Inventor： Alessandro Bertolini , Alberto Cattani , Alessandro Gasparini
Abstract: A switching converter includes a voltage conversion circuit providing an output voltage from an input voltage and a PWM voltage generated in response to first and second oscillating voltages. The input stage of a transconductor circuit provides an input reference current following a difference between a reference voltage and a voltage dependent on the output voltage and according to a transconductance, and an output stage for providing an output reference current from the input reference current. A phase shifter shifts an oscillating reference voltage according to the output reference current to obtain the first and second oscillating voltages. The transconductance is controlled in response to the input voltage resulting in a change of the input reference current. Compensation for that change is provided by subtracting a variable compensation current from the input reference current, where the variable compensation current is generated in response to the input voltage.
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公开(公告)号：US11057028B2
公开(公告)日：2021-07-06
申请号：US16559118
申请日：2019-09-03
Applicant: STMicroelectronics S.r.l.
Inventor： Alessandro Bertolini , Alberto Cattani , Stefano Ramorini , Alessandro Gasparini
Abstract: A DC-DC converter includes clock generation circuitry generating first and second clock signals that are out of phase, and a control signal generator generating a switching control signal at an edge of the second clock signal based upon a comparison of an error voltage to a summed voltage. Boost circuitry charges an energy storage component during an on-phase and discharges the energy storage component during an off-phase to thereby generate an output voltage. The on-phase and off-phase are set as a function of the switching control signal. Sum voltage generation circuitry generates a ramp voltage in response to an edge of the first clock signal and generates the summed voltage at an edge of the second clock signal. The sum voltage represents a sum of the ramp voltage and a voltage representative of the current flowing in the energy storage component during the on-phase.
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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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Patent Agency Ranking
6.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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7.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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8.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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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：US20250028342A1
公开(公告)日：2025-01-23
申请号：US18907071
申请日：2024-10-04
Applicant: STMicroelectronics S.r.l.
Inventor： Alberto Cattani , Alessandro Gasparini , Stefano Ramorini
IPC: G05F1/56
Abstract: In an embodiment, a method includes: providing a voltage setpoint to a voltage converter; generating an output voltage at a voltage rail with the voltage converter based on the voltage setpoint; when the voltage setpoint is transitioning from a first voltage setpoint to a second voltage setpoint that has a lower magnitude than the first voltage setpoint, providing a first constant current to a first node coupled to a control terminal of an output transistor to turn on the output transistor, where the output transistor includes a source terminal coupled to a first terminal of a first resistor, and where a current path of the output transistor is coupled to the voltage rail; and turning off the output transistor after the output voltage reaches the target output voltage corresponding to the second voltage setpoint.
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