Stmicroelectronics S.r.l.

Advanced Charging Technologies, LLC

Sgs-thomson Microelectronics S.r.l.

Infineon Technologies Ag

St-ericsson Sa

Other

Tdk Corporation

Synaptics Corporation

Hong Kong Applied Science and Technology Research Institute Company, Limited

Mindspeed Technologies, Inc.

Melexis Technologies Nv

Glonav Limited

Hewlett-packard Company

Andrea Baschirotto

Piero Malcovati

Rinaldo Castello

Michael H Freeman

Mitchael C Freeman

Robert Dieter

Randall L Sandusky

Neaz E Farooqi

Gabriele Gandolfi

Paolo Cusinato

Vittorio Colonna

Glenn Noufer

Jim Devoy

Silvia Jaeckel

Marco Grassi

Madison Hayes Yarbro Freeman

W J “Jim” Weaver, Jr

Stefano D'Amico

Albino Pidutti

Jay E Cormier

Angelo Nagari

Matteo Conta

Jim Sesters

Roberto Alini

Ernesto Lasalandra

Richard Gaggl

Francesco Rezzi

Tommaso Ungaretti

Paolo Del Croce

Guido Brasca

W J Weaver, Jr

Jesus Alejandro Guinea Trigo

Wj “Jim” Weaver, Jr

Giampiero Montagna

Edoardo Botti

Lorenzo Crespi

Thomas Freitag

Melchiorre Bruccoleri

Fabio Pasolini

Dieter Haerle

Alexander Mayer

Giovanni Frattini

Gino Rocca

Cristiano Bazzani

Michael Nelhiebel

Salvatore Portaluri

Antonio Di Giandomenico

Gianfranco Vai

Cesare Buffa

Cristiano Meroni

Massimo Antonio Ghioni

Kwai Chi Chan

Andreas Ott

Ho Ming (Karen) Wan

Yat To (William) Wong

Daifi Haoues Sassene

Dario Giotta

Fabrizio Conso

Fulvio Ciciotti

Marco De Blasi

Massimiliano Belloni

Alberto Gola

Sergio De Gasperi

Federico D'Aniello

Ugo Baschirotto

Federico Montecchi

Roberto Di Lorenzo

Ivonne Di Sancarlo

Marco Croce

Osvaldo Gasparri

Pietro Liguori

Francesco Corsi

Gianvito Matarrese

Cristoforo Marzocca

Federico D'ANIELLO

A method for current measurement in a switching converter is described herein. In accordance with one embodiment, the method includes switching a first transistor on and off in accordance with a logic signal, wherein a load current passes through the first transistor while it is switched on. The method further includes providing—by a second transistor—a sense current that is indicative of the load current, wherein the second transistor is coupled to the first transistor so that the first and the second transistors are switched on and off simultaneously. Further, the method includes determining an end of a switch-on phase of the second transistor, and providing a current sense signal that represents the sense current between a first time instant, which corresponds to the determined end of the switch-on phase, and a second time instant, at which the logic signal signals a switch-off of the first transistor.

Intelligent semiconductor switch with integrated current measurement function

A gate driver circuit includes a pulse generator that receives an input signal and generates a pulse signal in response to a switch-on command included in the input signal. The pulse signal has a pulse with a pulse length that is dependent on a level of a pulse control signal. The circuit further includes a sampling circuit that samples an output voltage subsequent to the pulse and stores a respective sampled value, and a controller that receives the sampled value of the output voltage and a reference voltage and updates the level of the pulse control signal based on the sampled value and the reference voltage. A driver circuit generates the output voltage based on the pulse signal.

High speed driver for high frequency DCDC converter

A transmitter device is provided for transmission of data via DC power distribution lines includes a sequence generator arranged for receiving a raw data bit stream to be transmitted over a positive and a negative DC power distribution line and for deriving a switching sequence based on the raw data bit stream, and a circuit including one or more capacitors and a plurality of switches controllable with the switching sequence derived in the sequence generator.

Transmitter for power line communication

In some examples, a device includes a power structure and a sensing structure that is electrically isolated from the power structure. The device also includes processing circuitry configured to determine whether the sensing structure includes a prognostic health indicator, wherein the prognostic health indicator is indicative of a health of the power structure.

Prognostic health management for power devices

A readout circuit for resistive and capacitive sensors includes a first input coupled to a reference resistor in a first mode of operation and coupled to a resistive sensor in a second mode of operation; a second input coupled to a capacitive sensor in the first mode of operation and coupled to a reference capacitor in the second mode of operation; and an output for providing a capacitive sensor data stream in the first mode of operation and for providing a resistive sensor data stream in the second mode of operation.

Readout circuit for resistive and capacitive sensors

A voice-activity detector (VAD) system comprises a microphone operable to receive and to process audio inputs from an environment to generate an analog audio input signal. The system further comprises an analog VAD operable to process the analog audio input signal to perform an initial detection of human speech, and operable to send a wake up command to a digital signal processing chain to awaken the digital signal processing chain from a sleep mode, when the analog VAD detects human speech. Further, the system comprises the digital signal processing chain operable to process the analog audio input signal to perform a secondary detection of human speech, and operable to output a signal indicating that human speech is detected, when the digital signal processing chain detects human speech. In one or more embodiments, the secondary detection of human speech is more accurate than the initial detection of human speech.

Analog voice activity detector systems and methods

An electronic circuit for a microphone and a microphone are disclosed. In an embodiment, the electronic circuit includes a sigma-delta modulator having a configurable resolution and a mode selector, wherein the sigma-delta modulator is selectively operable in at least two operation modes and the mode selector is configured to determine a desired operation mode dependent on an externally provided control signal and to select the resolution of the sigma-delta modulator according to the determined operation mode.

Electronic circuit for a microphone and microphone

A controller circuit is configured to drive a switching element to establish a channel that electrically couples a source to an inductive element of a buck converter and generate a minimum current sample. In response to current at the switching element exceeding a target peak current threshold of a set of control parameters for the buck converter, the controller circuit is configured to generate a peak current sample, calculate a mean current using the minimum current sample and the peak current sample, and modify the set of control parameters using the mean current. In response to the switching element satisfying an off time of the set of control parameters, the controller circuit is configured to drive the switching element to establish the channel that electrically couples the source to the inductive element during an on state for a subsequent switching period.

Power converter control using calculated average current

An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes a voltage reduction circuit cell that includes a first capacitor, a second capacitor, a switching circuit, and a hold capacitor. The switching circuit includes a plurality of switching devices that are coupled to the first and the second capacitors for delivering power from an input terminal to an output terminal. The plurality of switching devices includes at least two switching devices that are coupled to ground. The voltage reduction circuit cell also includes a controller for operating the switching circuit in a plurality of operational modes to deliver an output power signal at a desired voltage level.

Electrical circuit for delivering power to consumer electronic devices

An electrical circuit for providing electrical power for use in powering electronic devices is described herein. The electrical circuit includes a primary power circuit and a secondary power circuit. The primary power circuit receives an alternating current (AC) input power signal from an electrical power source and generates an intermediate direct current (DC) power signal. The intermediate DC power signal is generated at a first voltage level that is less than a voltage level of the AC input power signal. The secondary power circuit receives the intermediate DC power signal from the primary power circuit and delivers an output DC power signal to an electronic device. The output DC power signal is delivered at an output voltage level that is less than the first voltage level of the intermediate DC power signal.

An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a forward converter coupled to the input and output terminals. The forward converter includes a transformer, and a primary side regulation circuit coupled to a primary side of the transformer. The primary side regulation circuit includes a switching device coupled to the primary side, a current sense circuit configured to sense a current level on the primary side, and a controller configured to generate a pulse-width modulated control signal delivered to the switching device as a function of the sensed current level to regulate the transformer to deliver the output power signal at a desired voltage level.

An electrical circuit for providing electrical power for use in powering electronic devices, such as monitors, televisions, white goods, data centers, and telecom circuit boards, is described herein. The electrical circuit includes an input terminal configured to receive an input power signal, an output terminal configured to provide an output power signal, and a plurality of voltage reduction circuit cells coupled between the input terminal and the output terminal. Each of the voltage reduction circuit cells includes a pair of flyback capacitors, a switching circuit, and a hold capacitor. The switching device is configured to operate the corresponding voltage reduction circuit cell at a charging phase and at a discharging phase. The plurality of voltage reduction circuit cells are configured to deliver the output power signal having a voltage level that is less than the voltage level of the input power signal.

Growing community of inventors

Tortona, Italy

Andrea Baschirotto