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公开(公告)号：US12062981B2
公开(公告)日：2024-08-13
申请号：US17569296
申请日：2022-01-05
Applicant: STMicroelectronics S.r.l.
Inventor： Alessandro Gasparini , Alessandro Bertolini , Mauro Leoncini , Massimo Ghioni , Salvatore Levantino
CPC classification number: H02M3/158 , H02M1/0009 , H02M1/0025
Abstract: A time based boost DC-DC converter generates an output voltage using an inductor. A voltage error between the output voltage and a reference voltage is determined and processed in a) an integral control branch which converts the voltage error into an integral control current signal used to control a current controlled oscillator, and b) a proportional branch which converts the voltage error into a proportional control current signal used to control signal a delay line. Current flowing in the inductor is sensed, attenuated and used to apply adjustment to the integral and proportional control current signals. The output from the current controlled oscillator is passed through the delay line and phase detected in order to generate pulse width modulation (PWM) control signaling driving switch operation in the converter.
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42.发明授权公开(公告)号：US11837953B2
公开(公告)日：2023-12-05
申请号：US17869508
申请日：2022-07-20
Applicant: STMicroelectronics S.r.l.
Inventor： Alessandro Dago , Alessandro Gasparini , Osvaldo Enrico Zambetti , Salvatore Levantino , Massimo Antonio Ghioni
CPC classification number: H02M3/00 , H02M1/007 , H02J2207/20
Abstract: First and second circuit branches are coupled between an input node and ground. Each circuit branch includes a series coupling first-fourth transistors in a current flow path with an output node. A first capacitor is coupled between a first capacitor node and a second capacitor node intermediate the first transistor and the second transistor in the first circuit branch. A second capacitor is coupled between a third capacitor node and a fourth capacitor node intermediate the first transistor and the second transistor in the second circuit branch. An inter-branch circuit block between the first and second branches includes a first inter-branch transistor coupled between the first capacitor node in the first circuit branch and the fourth capacitor node in the second circuit branch and a second inter-branch transistor coupled between the third capacitor node in the second circuit branch and the second capacitor node in the first circuit branch.
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公开(公告)号：US11387735B2
公开(公告)日：2022-07-12
申请号：US17117847
申请日：2020-12-10
Applicant: STMicroelectronics S.r.l.
Inventor： Alberto Cattani , Alessandro Gasparini
Abstract: First and second n-channel FETs are connected in series between first and second terminals with an intermediate switching node. First and second driver circuits drive gates of the first and second n-channel FETs, respectively, in response to drive signals. The first driver circuit does not implement slew-rate control. A first resistor and capacitor are connected in series between the output of the first driver circuit and an intermediate node. A first electronic switch is connected between the intermediate node and the first terminal. A second electronic switch is connected between the intermediate node and the gate terminal of the first n-channel FET. A second resistor and a third electronic switch are connected in series between the gate terminal of the first n-channel FET and the switching node. A control circuit generates the drive signals and a first, second and third control signal for the first, second and third electronic switch.
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Patent Agency Ranking
公开(公告)号：US09979302B2
公开(公告)日：2018-05-22
申请号：US15394295
申请日：2016-12-29
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Alberto Cattani , Alessandro Gasparini , Stefano Ramorini
CPC classification number: H02M3/33515 , H02M1/08 , H02M3/335 , H02M2001/0025
Abstract: A control device for a switching power converter having an inductor element, a switch coupled to the inductor element, a storage element coupled to an output on which an output voltage is provided, and a diode element coupled to the storage element. The control device generates a command signal to control the switch and determine storage of energy in the inductor element in a first interval, and transfer of energy onto the storage element through the diode element in a second interval. A voltage shifter module generates a feedback voltage shifted relative to the output voltage. An amplification module has a first input receiving the feedback voltage, a second input receiving the reference voltage, and an output that supplies, as a function of the difference between the feedback and reference voltages, a control signal. A control unit receives the control signal and generates the command signal to control the switch.
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公开(公告)号：US09954394B2
公开(公告)日：2018-04-24
申请号：US15226473
申请日：2016-08-02
Applicant: STMicroelectronics S.r.l.
Inventor： Stefano Ramorini , Alessandro Gasparini , Alberto Cattani
CPC classification number: H02J15/00 , H02M3/1588 , H02M7/04 , H02M7/217 , H02M2001/0009 , H02N2/181 , Y02B70/1466
Abstract: 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.
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公开(公告)号：US09604842B2
公开(公告)日：2017-03-28
申请号：US14675230
申请日：2015-03-31
Applicant: STMICROELECTRONICS S.R.L.
CPC classification number: B81B7/008 , B81B3/00 , B81B7/04 , B81B2201/0257 , B81B2207/03 , B81B2207/053 , H04R3/007 , H04R3/12 , H04R19/005 , H04R2201/003
Abstract: A system for driving a MEMS array having a number of MEMS structures, each defining at least one row terminal and one column terminal, envisages: a number of row driving stages, each for supplying row-biasing signals to the row terminal of each MEMS structure associated to a respective row; a number of column driving stages, each for supplying column-biasing signals to the column terminal of each MEMS structure associated to a respective column; and a control unit, for supplying row-address signals to the row driving stages for generation of the row-biasing signals and for supplying column-address signals to the column driving stages for generation of the column-biasing signals. The control unit further supplies row-deactivation and/or column-deactivation signals to one or more of the row and column driving stages, for causing deactivation of one or more rows and/or columns of the MEMS array.
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47.发明授权公开(公告)号：US09263942B2
公开(公告)日：2016-02-16
申请号：US14036458
申请日：2013-09-25
Applicant: STMicroelectronics S.r.l.
Inventor： Stefano Ramorini , Alessandro Gasparini , Alberto Cattani
CPC classification number: H02M3/155 , F03G5/06 , H01F27/40 , H02M1/32 , H02M1/4208 , H02M3/158 , H02M7/06 , H02M7/068 , H02M7/217 , Y02B70/126
Abstract: An energy-scavenging interface receives an input signal from a transducer and supplies an output signal to a load. A switch is connected between the transducer and a reference node, and a diode is connected between the transducer and the load. A control circuit closes the switch for a time interval to permit energy storage in the transducer. A scale copy of a peak value of stored electric current is obtained. The switch is opened when the time interval elapses and the stored energy exceeds a threshold. The stored energy is then released to supply the load through the diode. The switch remains open as long as the value of current in the output signal exceeds the value of the scaled copy of the peak value.
Abstract translation: 能量清除界面接收来自换能器的输入信号并将输出信号提供给负载。 开关连接在传感器和参考节点之间，二极管连接在传感器和负载之间。 控制电路将开关闭合一段时间间隔，以允许传感器中的能量存储。 获得存储电流的峰值的比例拷贝。 当经过时间间隔并且存储的能量超过阈值时，开关被打开。 然后释放存储的能量以通过二极管提供负载。 只要输出信号中的电流值超过峰值的缩放副本的值，开关就保持打开。
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48.发明申请ENERGY HARVESTING INTERFACE WITH IMPROVED IMPEDANCE MATCHING, METHOD FOR OPERATING THE ENERGY HARVESTING INTERFACE, AND ENERGY HARVESTING SYSTEM USING THE ENERGY HARVESTING INTERFACE 有权具有改进的阻抗匹配的能量采集接口，操作能量采集接口的方法和使用能量采集接口的能量采集系统公开(公告)号：US20150234416A1
公开(公告)日：2015-08-20
申请号：US14616119
申请日：2015-02-06
Applicant: STMicroelectronics S.r.l.
Inventor： Stefano Ramorini , Alessandro Gasparini , Alberto Cattani , Federica Papotti
IPC: G05F5/00
Abstract: An energy harvesting interface receives an electrical signal from an inductive transducer and supplies a supply signal. The interface includes an input branch with a first switch and a second switch connected together in series between a first input terminal and an output terminal. The interface further includes a third switch and a fourth switch connected together 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. The second threshold is derived from the electric storage current.
Abstract translation: 能量采集接口从感应传感器接收电信号并提供电源信号。 接口包括具有第一开关和第二开关的输入分支，第一开关和第二开关串联连接在第一输入端子和输出端子之间。 该接口还包括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经第四开关的电源电流是否达到低于第一阈值的第二阈值。 第二阈值来自蓄电流。
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