公开(公告)号：US20190222136A1

公开(公告)日：2019-07-18

申请号：US16362939

申请日：2019-03-25

Applicant: STMicroelectronics (Tours) SAS ,  STMicroelectronics S.r.l.

Inventor： Laurent GONTHIER ,  Roberto LAROSA ,  Giulio ZOPPI

IPC: H02M7/06 ,  G05B19/10 ,  H02M1/08 ,  H02M7/162 ,  H02M1/36

Abstract: An AC/DC converter includes a first terminal and a second terminal to receive an AC voltage and a third terminal and a fourth terminal to deliver a DC voltage. A rectifying bridge is provided in the converter. A controllable switching or rectifying element has a control terminal configured to receive a control current. A first switch is coupled between a supply voltage and the control terminal to inject the control current. A second switch is coupled between the control terminal and a reference voltage to extract the control current. The first and second switches are selectively actuated by a control circuit.

公开(公告)号：US20180331580A1

公开(公告)日：2018-11-15

申请号：US15975347

申请日：2018-05-09

Applicant: STMicroelectronics S.r.l.

Inventor： Roberto LAROSA ,  Giulio ZOPPI

IPC: H02J50/20 ,  G06K19/07

CPC classification number: H02J50/20 ,  G06K19/0707 ,  G06K19/0723 ,  G08C17/02 ,  G08C2201/12 ,  H02J4/00

Abstract: Radiofrequency energy that is captured by a radiofrequency power harvester is stored in a storage capacitance. One or more user circuits are supplied with energy stored in the storage capacitance. The harvester operates in alternated charge and burst phases with captured radiofrequency energy stored in the storage capacitance in the charge phases and supplied to the user circuits in the burst phases to perform user circuit tasks. In response to detection of completion of the user circuit tasks in a burst phase, the harvester causes operation to shift to the next charge phase.

公开(公告)号：US20170139461A1

公开(公告)日：2017-05-18

申请号：US14943472

申请日：2015-11-17

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Roberto LAROSA ,  Daniele Mangano ,  Riccardo Condorelli ,  Giulio Zoppi ,  Natale Aiello

IPC: G06F1/32 ,  G06F1/26

CPC classification number: G06F1/3206 ,  G06F1/26

Abstract: An electronic device may include a transducer configured to generate an electrical output responsive to an input, and a data storage element configured to change state responsive to the transducer. The electronic device may include a power circuit configured to turn on and supply power responsive to the data storage element changing state, and a processing circuit configured to be powered by the power circuit.

公开(公告)号：US20160241130A1

公开(公告)日：2016-08-18

申请号：US14964818

申请日：2015-12-10

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Giulio ZOPPI ,  Roberto LAROSA ,  Natale AIELLO

IPC: H02M1/36 ,  H02M7/04

CPC classification number: H02M1/36 ,  H02M7/04 ,  H02M2001/0032 ,  Y02B70/16

Abstract: A device for driving a power supply start-up circuit may include a logic unit for storing an operating state of equipment, where the logic unit is activatable by a start-up signal reaching a start-up threshold. The device may also include a detector, where the detector provides a signal to the logic unit indicating a drop in the signal below a drop threshold. The detector may enable the logic unit to continue operating in the presence of a failure of a power supply to store the operating state of the equipment upon occurrence of the failure of the power supply. In addition, the device may include a start-up circuit sensitive to a power supply signal, where the start-up circuit is activatable by the power supply signal as restored after the failure, and the start-up circuit may provide the start-up signal reaching the start-up threshold upon the power supply signal being restored.

Abstract translation: 用于驱动电源启动电路的装置可以包括用于存储设备的操作状态的逻辑单元，其中逻辑单元可通过达到启动阈值的启动信号激活。 该装置还可以包括检测器，其中检测器向逻辑单元提供指示低于下降阈值的信号下降的信号。 在存在电源故障的情况下，检测器可以使逻辑单元继续运行，以在电源发生故障时存储设备的运行状态。 此外，该装置可以包括对电源信号敏感的启动电路，其中启动电路可以通过在故障之后恢复的电源信号激活，并且启动电路可以提供启动 当电源信号恢复时，信号达到启动阈值。