-
公开(公告)号：US10277178B2
公开(公告)日：2019-04-30
申请号：US15692425
申请日：2017-08-31
Applicant: STMicroelectronics S.r.l.
Inventor： Stefano Ramorini , Germano Nicollini , Alberto Cattani , Alessandro Gasparini
Abstract: A triangular-voltage generator has an input terminal that receives a power supply voltage and an output terminal that supplies a triangular-wave voltage having a repetition period. An operational amplifier in an integrator configuration has a first input, a second input and an output coupled to the output terminal. The second input receives a reference voltage as a function of the power supply voltage. The first input is selectively and alternately connected to the input terminal during a first half-period of the repetition period and to a reference terminal during a second half-period of the repetition period.
-
公开(公告)号：US20180234062A1
公开(公告)日：2018-08-16
申请号：US15692425
申请日：2017-08-31
Applicant: STMicroelectronics S.r.l.
Inventor： Stefano Ramorini , Germano Nicollini , Alberto Cattani , Alessandro Gasparini
CPC classification number: H03F3/217 , H03F1/0211 , H03F3/2173 , H03F2200/141 , H03F2200/351 , H03K4/06 , H03K4/066
Abstract: A triangular-voltage generator has an input terminal that receives a power supply voltage and an output terminal that supplies a triangular-wave voltage having a repetition period. An operational amplifier in an integrator configuration has a first input, a second input and an output coupled to the output terminal. The second input receives a reference voltage as a function of the power supply voltage. The first input is selectively and alternately connected to the input terminal during a first half-period of the repetition period and to a reference terminal during a second half-period of the repetition period.
-
公开(公告)号：US20180034376A1
公开(公告)日：2018-02-01
申请号：US15394295
申请日：2016-12-29
Applicant: STMICROELECTRONICS S.R.L.
Inventor： Alberto Cattani , Alessandro Gasparini , Stefano Ramorini
IPC: H02M3/335
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.
-
24.发明授权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收集界面，用于操作能量收集界面的方法以及使用能量收集界面的能量收集系统公开(公告)号：US09541941B2
公开(公告)日：2017-01-10
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。
-
25.发明授权Enhanced DC-DC converter, method for operating the DC-DC converter, environmental energy-harvesting system comprising the DC-DC converter, and apparatus comprising the energy-harvesting system 有权增强型DC-DC转换器，用于操作DC-DC转换器的方法，包括DC-DC转换器的环境能量收集系统以及包括能量收集系统公开(公告)号：US09450489B2
公开(公告)日：2016-09-20
申请号：US14181063
申请日：2014-02-14
Applicant: STMicroelectronics S.r.l.
Inventor： Alessandro Gasparini , Eugenio Miluzzi , Alberto Cattani , Stefano Ramorini
CPC classification number: H02M3/158 , H02M3/1584 , H02M3/33561 , H02M2001/0087 , H02M2001/009 , Y10T307/406
Abstract: A DC-DC converter independently supplies electrical loads. For each load, an output load signal is compared to a reference to generate a result indicating a need to supply the respective electrical load. A first detection is made as to whether a first electrical load needs to be supplied and a second detection is made as to whether any remaining electrical loads need to be supplied. The first electrical load is supplied if the first detection is positive and the second detection is negative.
Abstract translation: DC-DC转换器独立提供电气负载。 对于每个负载，将输出负载信号与参考值进行比较以产生指示需要提供相应的电负载的结果。 首先检查是否需要提供第一电负载，并且进行第二次检测以确定是否需要提供任何剩余的电负载。 如果第一次检测为正，第二个检测为负，则提供第一个电气负载。
-
Patent Agency Ranking
26.发明申请ENHANCED DC-DC CONVERTER, METHOD FOR OPERATING THE DC-DC CONVERTER, ENVIRONMENTAL ENERGY-HARVESTING SYSTEM COMPRISING THE DC-DC CONVERTER, AND APPARATUS COMPRISING THE ENERGY-HARVESTING SYSTEM 有权增强的DC-DC转换器，DC-DC转换器的操作方法，包含DC-DC转换器的环境能量收集系统以及包含能量收集系统的装置公开(公告)号：US20140232189A1
公开(公告)日：2014-08-21
申请号：US14181063
申请日：2014-02-14
Applicant: STMicroelectronics S.r.l.
Inventor： Alessandro Gasparini , Eugenio Miluzzi , Alberto Cattani , Stefano Ramorini
CPC classification number: H02M3/158 , H02M3/1584 , H02M3/33561 , H02M2001/0087 , H02M2001/009 , Y10T307/406
Abstract: A DC-DC converter independently supplies electrical loads. For each load, an output load signal is compared to a reference to generate a result indicating a need to supply the respective electrical load. A first detection is made as to whether a first electrical load needs to be supplied and a second detection is made as to whether any remaining electrical loads need to be supplied. The first electrical load is supplied if the first detection is positive and the second detection is negative.
Abstract translation: DC-DC转换器独立提供电气负载。 对于每个负载，将输出负载信号与参考值进行比较以产生指示需要提供相应的电负载的结果。 首先检查是否需要提供第一电负载，并且进行第二次检测以确定是否需要提供任何剩余的电负载。 如果第一次检测为正，第二个检测为负，则提供第一个电气负载。
-
公开(公告)号：US12081128B2
公开(公告)日：2024-09-03
申请号：US17885901
申请日：2022-08-11
Applicant: STMicroelectronics S.r.l.
Inventor： Alessandro Gasparini , Mauro Leoncini , Claudio Luise , Alberto Cattani , Massimo Ghioni , Salvatore Levantino
IPC: H02J1/10 , H02M3/158 , H05B45/3725
CPC classification number: H02M3/1582 , H02J1/102 , H05B45/3725
Abstract: A Single Input Dual Output converter includes a first switch coupling an input to a first inductor terminal, a second switch coupling a second inductor terminal to ground, a third switch coupling the second inductor terminal to a positive output, and a fourth switch coupling the first inductor terminal to a negative output. During time-shared control, the negative and positive outputs are independently served by conversion cycles. Each conversion cycle includes: a positive phase with a positive charge phase (closing only the first and second switches), followed by an additional phase (closing only the first and third switches for a given time duration), and followed by a positive discharge phase (closing only the third and fourth switches). Each conversion cycle further includes a negative phase with a negative charge phase (closing only the first and second switches) followed by a negative discharge phase (closing only the second and fourth switches).
-
公开(公告)号：US11646658B2
公开(公告)日：2023-05-09
申请号：US17533338
申请日：2021-11-23
Applicant: STMicroelectronics S.r.l.
Inventor： Stefano Ramorini , Alessandro Gasparini , Alberto Cattani
IPC: H02M3/07
Abstract: Charge pump stages are coupled between flying capacitor pairs and arranged in a cascaded between a bottom voltage line and an output voltage line. Gain stages apply pump phase signals having a certain amplitude to the charge pump stages via the flying capacitors. A feedback signal path from the output voltage line to the bottom voltage line applies a feedback control signal to the bottom voltage line. Power supply for the gain stages is provided by a voltage of the feedback control signal in order to control the amplitude of the pump phase signals. An asynchronous logic circuit generates the switching drive signals for the gain stages with a certain switching frequency which is a function of a logic supply voltage derived from the voltage of the feedback control signal.
-
29.发明授权公开(公告)号：US11527956B2
公开(公告)日：2022-12-13
申请号：US17335523
申请日：2021-06-01
Applicant: STMicroelectronics S.r.l.
Inventor： Alessandro Bertolini , Alberto Cattani , Alessandro Gasparini
Abstract: A control circuit for controlling switching operation of a switching stage of a converter includes a phase detector circuit that generates a pulse-width modulated (PWM) signal in response to a phase comparison of two clock signals. A first clock signal has a frequency determined as a function of a first feedback signal proportional to converter output voltage. A first transconductance amplifier generates a first current indicative of a difference between a reference voltage and the first feedback signal, and a second transconductance amplifier generates a second current indicative of a difference between the reference voltage and a second feedback signal proportional to a derivative of the converter output voltage. A delay line introduces a delay in the first clock signal that is dependent on the first and second currents as well as a compensation current dependent on a selected operational mode of the converter.
-
公开(公告)号：US20210036601A1
公开(公告)日：2021-02-04
申请号：US17072284
申请日：2020-10-16
Applicant: STMicroelectronics S.r.l.
Inventor： Giuseppe Calcagno , Alberto Cattani , Giuseppina Sapone
Abstract: A circuit is operated by receiving an input reference signal at an input node, determining a scaling ratio based on the input reference signal, generating a digital input signal as a function of the determined scaling ratio, converting the digital input signal into an analog signal that is a scaled replica of the input reference signal, and providing the analog signal at an output node of the circuit and then, after a duration of time, coupling the input reference signal to the output node.
-
-
-
-
-
-
-
-
-
Search Results
49
records
(took 0.039 seconds)
