Stmicroelectronics S.r.l.

Consorzio Per La Ricerca Sulla Microelettronica Nel Mezzogiorno

Sgs-thomson Microelectronics S.r.l.

Co.ri.m.me. Consorzio Per La Ricerca Sulla Microelettronica Nel

Co.ri.m.me-consorzio Per La Ricerca Sulla Microelectronica Nel

Co.ri.m.me Consorzio Per La Sulla Microelectronica Nel Mezzogiorno

Natale Aiello

Atanasio La Barbera

Roberto Larosa

Giulio Zoppi

Francesco Giovanni Gennaro

Sergio Palara

Salvatore Scaccianoce

Vito Graziano

Davide Giuseppe Patti

Salvatore Leonardi

Stefano Sueri

Daniele Mangano

Francesco Pulvirenti

Giovanni Luca Torrisi

Mario Paparo

Riccardo Condorelli

Vincenzo Randazzo

Giuseppe Palmisano

Alessandro Finocchiaro

Roberto La Rosa

Matteo Lo Presti

Tiziana Teresa Signorelli

Santo Ilardo

Alfio Consoli

Antonio Testa

Sebastiano Messina

Domenico Ragonese

Francesco Macina

Atanasio LaBarbera

Giuseppe Scuderi

Nicola Nigido

Salvatore Di Fazio

Danilo Antonio Claudio Morreale

Sergio Spampinato

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.

Electronic device and sensor device with low power consumption and related methods

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.

Device for operational state recovery and corresponding equipment

A power supply apparatus includes a power supply circuit and a power-on circuit. The power-on circuit detects a remotely transmitted control signal and causes a transition of the power supply circuit to a turned on state. The power-on circuit includes a transducer configured to provide a power-on signal in response to the remote control signal. The transducer triggers transition to the turned on state through a switch driven by the power-on signal output from the transducer and arranged to supply a power supply circuit enable signal. A DC blocking capacitor is connected between an output of the transducer and a control terminal of the switch.

Power supply apparatus for an electrical appliance

A power supply includes a power supply circuit and a power-on circuit controlling transitioning of the power supply circuit to a turned-on state. The power-on circuit includes a code driver, a controller coupled to the power supply circuit and code driver, and a transducer to detect a wireless control signal and generate an enable signal based thereupon. A transistor has a first conduction terminal coupled to the code driver, a second conduction terminal coupled to the controller, and a control terminal coupled to the transducer to receive the enable signal so the transistor switches based thereupon. The code driver detects a code embedded in the wireless control signal based upon switching of the transistor, and generates a power on signal for the controller based upon the code. The controller causes the power supply circuit to transition from the turned-off state to the turned-on state based upon the power on signal.

Wirelessly activated power supply for an electronic device

A power supply circuit for an electrical appliance, including a turning-on stage configured for determining a transition from a turned-off state, in which the power supply circuit is off and does not supply electric power, to a turned-on state of the power supply circuit. The turning-on stage includes a transducer of the remote-control type configured for triggering the transition in response to the reception of a wireless signal. In some embodiments, operating power is transmitted from a remote controller to a control circuit of the electronic equipment, such that the electronic equipment can be turned on remotely but draws zero standby power.

Power supply circuit for remotely turning-on electrical appliances

A power supply circuit for an electrical appliance, including a turning-on stage configured for determining a transition from a turned-off state, in which the power supply circuit is off and does not supply electric power, to a turned-on state of the power supply circuit. The turning-on stage includes a transducer of the remote-control type configured for triggering the transition in response to the reception of a wireless signal.

A solar energy plant may include a DC bus, photovoltaic panels coupled in parallel to the DC bus, each photovoltaic panel having a DC/DC converter, and a first controller controlling the DC/DC converter depending on whether a voltage on the DC bus is equal to or greater than a first threshold and lower than or equal to a second threshold. The solar energy plant may include a DC/AC inverter coupled to the DC bus and outputting an output AC voltage, an auxiliary start-up power supply charging a parasitic capacitance on the DC bus up to the first threshold, and a second controller turning on the auxiliary start-up power supply based upon a start command, and turning off the auxiliary start-up power supply and simultaneously turning on the DC/AC inverter.

Automatic system for synchronous enablement-disablement of solar photovoltaic panels of an energy production plant with distributed DC/DC conversion

A control circuit for a protection circuit device includes first and second voltage boosters, a comparator coupled thereto, and a MOSFET for bypassing a direct current (DC) source. The control circuit may include a control logic circuit having a first input coupled to an output of the comparator, a second input receiving a disable command signal, a first output coupled to an enable input of the first voltage booster, and a second output, and a four terminal path inversion switch. The control circuit may include a supply voltage line, a sensor coupled to the second input of the control logic circuit, to generate the disable command signal, and to force the MOSFET into a conduction mode, and an external command terminal coupled to the second input of the control logic circuit, to receive the disable command signal, and to force the MOSFET into the conduction mode.

Low on-resistance MOSFET implemented DC source by-pass or circuit breaker with related self-supplied controller circuit including fire or other risk DC output disabling means

In a device for driving LEDs with variable light intensity, a supply stage has a first operating mode, in which a controlled supply current is generated, and a second operating mode, in which a controlled supply voltage is generated. A LED is connected to the supply stage, receives the controlled supply current or voltage, and has a turning-on threshold voltage higher than the controlled supply voltage. A current sensor generates a current-feedback signal that is correlated to the current flowing in the LED and is supplied to the supply stage in the first operating mode. An intensity-control stage generates a mode-control signal that is sent to the supply stage and controls sequential switching between the first and the second operating modes of the supply stage.

LED driving device with variable light intensity

A photovoltaic energy conversion system includes a distributed control structure for groups of cells of each multi-cellular panel, the components of which are entirely physically integrated in the photovoltaic panel. Each multi-cellular photovoltaic panel has a DC bus, supplied in parallel by a plurality of DC-DC converters, each provided with a controller that controls the working point of the photovoltaic cells coupled to the input of the DC-DC converter for a maximum yield of electric power by implementing a relatively simple MPPT algorithm. The controller includes a logic circuit and A/D converters of analog signals representing the input voltage and the input current generated by the group of cells that is coupled to the input of the DC-DC converter and optionally also of the output voltage of the converter, and a relatively simple D/A converter of the drive control signal of the power switch of the DC-DC converter.

Multi-cellular photovoltaic panel system with DC-DC conversion replicated for groups of cells in series of each panel and photovoltaic panel structure

An electronic differential switch is provided that is connected to a phase cable and a neutral cable of an electric network. The electronic differential switch includes a first winding associated with a second winding, at least one toroid associated with the first winding, a diode bridge, a driving relay for a main switch connected to the phase and neutral cables, an integrated circuit for measuring a differential current flowing in the first winding and generating a driving signal, and at least one driven switch coupled to the integrated circuit and driven by the driving signal. The first and second windings are coupled to one another through the integrated circuit and the diode bridge. The at least one driven switch is coupled to the driving relay through the diode bridge so as to excite the driving relay and close the main switch, or release the driving relay and open the main switch. Also provided is a method for controlling an alarm condition in an electric network.

Electronic differential switch

A method for detecting a null current condition in a PWM driven inductor connected between a voltage source node and a second circuit node of a line for outputting current to a load includes generating a derivative signal by time differentiating a voltage on the second node. The method further includes monitoring an instant when the derivative signal becomes negative, and signaling verification of the null current condition each time the derivative signal becomes negative.

Method for detecting the null current condition in a PWM driven inductor and a relative driving circuit

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Trecastagni, Italy

Natale Aiello