公开(公告)号：US10254332B2

公开(公告)日：2019-04-09

申请号：US15401435

申请日：2017-01-09

Applicant: STMicroelectronics S.r.l.

Inventor： Fabiano Frigoli ,  Giuseppe Ballotta ,  Massimo Greppi ,  Luca Giuseppe Falorni ,  Paolo Aranzulla

IPC: G01R1/04 ,  G01R31/28

Abstract: A for positioning a miniaturized piece includes a positioning structure that forms a first cavity designed to receive with play the miniaturized piece and a second cavity communicating with the first cavity. At least one electrical-contact terminal is provided facing the second cavity and is electrically coupleable to an electronic testing device designed to carry out an electrical test on the miniaturized piece. An actuator device causes a vibration of the positioning structure such that the vibration translates the miniaturized piece towards the second cavity until it penetrates at least in part into the second cavity.

公开(公告)号：US10250301B2

公开(公告)日：2019-04-02

申请号：US15375761

申请日：2016-12-12

Applicant: STMicroelectronics S.r.l.

Inventor： Alberto Pagani

IPC: H04B5/00 ,  H02J50/12 ,  H02J50/40 ,  H02J7/02 ,  H02J50/70 ,  H01L23/538 ,  H01L23/64 ,  H01L23/66 ,  H01L25/065 ,  H01Q1/22 ,  H01Q7/00 ,  H01F38/14 ,  H01Q1/27 ,  H01Q1/52 ,  H02J50/10 ,  A61B5/00 ,  H02J17/00

Abstract: Disclosed herein is an article including a garment, with a network formed on the garment. The network includes a main node with a main wired antenna, and at least one intermediate node with an intermediate wired antenna to be magnetically coupled to a respective device for that intermediate node. An electrical line electrically couples the main node to the at least one intermediate node. At least one electronic device is magnetically coupled to the intermediate wired antenna. A power supply unit is magnetically coupled to the main node via the main wired antenna thereof.

公开(公告)号：US10250172B2

公开(公告)日：2019-04-02

申请号：US15277684

申请日：2016-09-27

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Michele Boscolo Berto

IPC: H02P6/18 ,  G01D5/20 ,  H02P27/08

Abstract: An apparatus for detecting a position of a rotor of a DC motor with N phases having a plurality of windings. The apparatus includes circuitry to couple at least two of the windings between a supply voltage and a reference voltage according to a first current path and allow the current stored in the two windings to be discharged through a second current path. The circuitry is configured to force the at least two windings at a short circuit condition in the second current path. The apparatus also includes a measurement circuit configured to measure the time period of discharging the current stored in the two windings and a rotor position detector for detecting the rotor position based on the measured time period.

公开(公告)号：US10245834B2

公开(公告)日：2019-04-02

申请号：US15812960

申请日：2017-11-14

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Mauro Cattaneo ,  Carlo Luigi Prelini ,  Lorenzo Colombo ,  Dino Faralli ,  Alessandra Sciutti ,  Lorenzo Tentori

IPC: B41J2/16 ,  B41J2/135 ,  B41J2/01

Abstract: A method for manufacturing a device for ejecting a fluid, including producing a nozzle plate including: forming a first nozzle cavity, having a first diameter, in a first semiconductor body; forming a hydrophilic layer at least in part in the first nozzle cavity; forming a structural layer on the hydrophilic layer; etching the structural layer to form a second nozzle cavity aligned to the first nozzle cavity in a fluid-ejection direction and having a second diameter larger than the first diameter; proceeding with etching of the structural layer for removing portions thereof in the first nozzle cavity, to reach the hydrophilic layer and arranged in fluid communication the first and second nozzle cavities; and coupling the nozzle plate with a chamber for containing the fluid.

公开(公告)号：US10243470B2

公开(公告)日：2019-03-26

申请号：US15915758

申请日：2018-03-08

Applicant: STMicroelectronics S.r.l.

Inventor： Claudio Adragna

IPC: H02M3/335 ,  H02M3/157 ,  H02M1/08 ,  H03F3/45 ,  H03K17/687 ,  H02M7/523 ,  H02M1/00

Abstract: A control circuit for an electronic converter having a power stage controls the operation of a power stage as a function of a feedback control signal that indicates an input power provided to the power stage. The control circuit generates a digital reference signal as a function of the feedback control signal and a first signal based on an input voltage supplied to the power stage. The control circuit generates a modified control signal as a function of the digital reference signal and a second signal based on an input current supplied to the power stage.

公开(公告)号：US20190090067A1

公开(公告)日：2019-03-21

申请号：US16128288

申请日：2018-09-11

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Matteo PERLETTI ,  Federico VERCESI ,  Silvia ADORNO ,  Giorgio ALLEGATO

IPC: H04R19/04 ,  B81B7/00 ,  B81C1/00 ,  H04R19/00 ,  H04R1/28

CPC classification number: H04R19/04 ,  B81B7/0029 ,  B81B2201/0257 ,  B81B2203/0127 ,  B81B2207/012 ,  B81C1/00309 ,  B81C1/00626 ,  B81C2201/014 ,  B81C2201/0198 ,  H04R1/086 ,  H04R1/2807 ,  H04R19/005 ,  H04R31/00 ,  H04R2201/003

Abstract: A method for manufacturing a filtering module comprising the steps of: forming a multilayer body comprising a filter layer of semiconductor material and having a thickness of less than 10 μm, a first structural layer coupled to a first side of the filter layer, and a second structural layer coupled to a second side, opposite to the first side, of the filter layer; forming a recess in the first structural layer, which extends throughout its thickness; removing selective portions, exposed through the recess, of the filter layer to form a plurality of openings, which extend throughout the thickness of the filter layer; and completely removing the second structural layer to connect fluidically the first and second sides of the filter layer, thus forming a filtering membrane designed to inhibit passage of contaminating particles.

公开(公告)号：US10236845B2

公开(公告)日：2019-03-19

申请号：US15363633

申请日：2016-11-29

Applicant: STMicroelectronics S.r.l.

Inventor： Luca Larcher ,  Andrea Pallotta

IPC: H03F3/60 ,  H03F3/21 ,  H03F3/26 ,  H03F3/45 ,  H03F1/56 ,  H03F3/195 ,  H03F3/213

Abstract: A distributed active transformer includes an input transformer set and an output transformer set. Active stages are coupled between a transformer in the input transformer set and a transformer in the output transformer set. The input and output transformer sets are each configured as a slab transformer. The input slab transformer includes a single primary slab and many secondary slabs. The output slab transformer includes many primary slabs and a single secondary slab.

公开(公告)号：US10236774B2

公开(公告)日：2019-03-19

申请号：US16027004

申请日：2018-07-03

Applicant: STMICROELECTRONICS S.R.L.

Inventor： Giovanni Gritti

IPC: H02M3/157 ,  H02M3/335 ,  H02J7/00 ,  H02M3/158 ,  H02M3/156

Abstract: A control module controls a switching converter including at least one inductor element and one switching element. The module includes: a driver circuit that generates a control signal which controls the on and off cycles of the switching element; a first modulation circuit which sends a command to the driver circuit in such a manner as to generate edges of a first type of the control signal, as a function of the input electrical quantity and of a reference electrical quantity; and a second modulation circuit which sends a command to the driver circuit in such a manner as to generate edges of a second type of the control signal, as a function of a first and a second internal electrical quantity, which are functions respectively of the charges on a first and a second capacitor, which are charged and discharged as a function of the control signal.

公开(公告)号：US20190081617A1

公开(公告)日：2019-03-14

申请号：US15704094

申请日：2017-09-14

Applicant: STMicroelectronics S.r.l.

Inventor： Marco Martini

IPC: H03K4/02 ,  H02M3/07

Abstract: In accordance with an embodiment, a method includes receiving an enable signal. After the enable signal is asserted, it is determined whether a soft-start capacitor is electrically connected to an input of a ramp generator circuit while keeping an output of the ramp generator circuit low. If the soft-start capacitor is electrically connected to the input of the ramp generator circuit, a first current is injected into the input of the ramp generator circuit to generate a first voltage ramp at the output of the ramp generator circuit. If the soft-start capacitor is not electrically connected to the input of the ramp generator circuit, a second current is injected to the input of the ramp generator circuit to generate a second voltage ramp at the output of the ramp generator circuit. The second current is smaller than the first current.

公开(公告)号：US20190078889A1

公开(公告)日：2019-03-14

申请号：US16123849

申请日：2018-09-06

Applicant: STMICROELECTRONICS S.r.l.

Inventor： Stefano FACCHINETTI

IPC: G01C19/5776 ,  G01C19/5712

Abstract: A driving circuit for a microelectromechanical system (MEMS) gyroscope operating based on the Coriolis effect is provided. The driving circuit supplies drive signals to a mobile mass of the MEMS gyroscope to cause a driving movement of the mobile mass to oscillate at an oscillation frequency. The driving circuit includes an input stage, which receives at least one electrical quantity representing the driving movement and generates a drive signal based on the electrical quantity; a measurement stage, which measures an oscillation amplitude of the driving movement based on the drive signal; and a control stage, which generates the drive signals based on a feedback control of the oscillation amplitude. The measurement stage performs a measurement of a time interval during which the drive signal has a given relationship with an amplitude threshold, and measures the oscillation amplitude as a function of the time interval.