Abstract: In an embodiment, an amplifier circuit includes a second stage that includes a first switch circuit including first and second terminals, a plurality of resistive elements coupled between the first and second terminals of the first switch circuit, and a plurality of switches configured to control an equivalent resistance between the first and second terminals of the first switch circuit. During play mode, the second stage has a gain between the input of the second stage and the output of the second stage of a first value. During a transition from mute mode to play mode, the amplifier circuit is configured to progressively increase the gain of the second stage from a second value to the first value. During a transition from play mode to mute mode, the amplifier circuit is configured to progressively decrease the gain of the second stage from the first value to the second value.

Abstract: An integrated circuit includes a die that includes a circuit configured to generate a PWM signal in response to a first clock signal, and a first set of pads configured to provide amplified PWM signals to external filters. An amplifier stage is configured to provide the amplified PWM signals. The die includes two pads configured to be coupled to an external inductor, and a second set of pads configured to provide regulated voltages. An electronic converter circuit is configured to generate the regulated voltages to supply the amplifier stage. The electronic converter circuit includes a control circuit configured to drive electronic switches in response to a second clock signal to regulate the regulated voltages to a respective target value. The die includes a control block to synchronize the switching activity of the electronic switches with the switching activity of the amplifier stage.

Abstract: A circuit includes a field effect transistor having a gate driven via a drive signal. The field effect transistor has a drain-source voltage drop indicative of the intensity of a current flowing in the current path through the field effect transistor. The circuit also includes a pair of sensing transistors that include a first sensing field effect transistor arranged with its drain and gate coupled with the drain and the gate of the field effect transistor, respectively, and a second sensing field effect transistor having a gate configured for receiving a replica of the drive signal. The second sensing field effect transistor is arranged with its current path in series with the current path of the first sensing field effect transistor. A sensing signal at a sensing node is indicative of the current intensity flowing in the current path of the field effect transistor.

Abstract: An integrated circuit includes a die that includes a circuit configured to generate a PWM signal in response to a first clock signal, and a first set of pads configured to provide amplified PWM signals to external filters. An amplifier stage is configured to provide the amplified PWM signals. The die includes two pads configured to be coupled to an external inductor, and a second set of pads configured to provide regulated voltages. An electronic converter circuit is configured to generate the regulated voltages to supply the amplifier stage. The electronic converter circuit includes a control circuit configured to drive electronic switches in response to a second clock signal to regulate the regulated voltages to a respective target value. The die includes a control block to synchronize the switching activity of the electronic switches with the switching activity of the amplifier stage.

Abstract: A converter includes a first switch coupled between a first input terminal and a first terminal of an inductor, and a second switch coupled between a second terminal of the inductor and a second input terminal. A third switch is coupled between the second terminal of the inductor and a first output terminal, and a fourth switch is coupled between the first terminal of the inductor and a second output terminal. A capacitor is coupled between the first and second output terminals. A control circuit monitors a regulated voltage between the first and second output terminals. During a charge phase, the first and second switches are closed to charge the inductor. During a discharge phase, the third and fourth switches are closed to charge the capacitor and increase the regulated voltage.

Abstract: An integrated circuit includes a die that includes a circuit configured to generate a PWM signal in response to a first clock signal, and a first set of pads configured to provide amplified PWM signals to external filters. An amplifier stage is configured to provide the amplified PWM signals. The die includes two pads configured to be coupled to an external inductor, and a second set of pads configured to provide regulated voltages. An electronic converter circuit is configured to generate the regulated voltages to supply the amplifier stage. The electronic converter circuit includes a control circuit configured to drive electronic switches in response to a second clock signal to regulate the regulated voltages to a respective target value. The die includes a control block to synchronize the switching activity of the electronic switches with the switching activity of the amplifier stage.

Abstract: A converter includes a first switch coupled between a first input terminal and a first terminal of an inductor, and a second switch coupled between a second terminal of the inductor and a second input terminal. A third switch is coupled between the second terminal of the inductor and a first output terminal, and a fourth switch is coupled between the first terminal of the inductor and a second output terminal. A capacitor is coupled between the first and second output terminals. A control circuit monitors a regulated voltage between the first and second output terminals. During a charge phase, the first and second switches are closed to charge the inductor. During a discharge phase, the third and fourth switches are closed to charge the capacitor and increase the regulated voltage.

Abstract: An integrated circuit includes a die that includes a circuit configured to generate a PWM signal in response to a first clock signal, and a first set of pads configured to provide amplified PWM signals to external filters. An amplifier stage is configured to provide the amplified PWM signals. The die includes two pads configured to be coupled to an external inductor, and a second set of pads configured to provide regulated voltages. An electronic converter circuit is configured to generate the regulated voltages to supply the amplifier stage. The electronic converter circuit includes a control circuit configured to drive electronic switches in response to a second clock signal to regulate the regulated voltages to a respective target value. The die includes a control block to synchronize the switching activity of the electronic switches with the switching activity of the amplifier stage.

Abstract: A circuit includes a field effect transistor having a gate driven via a drive signal. The field effect transistor has a drain-source voltage drop indicative of the intensity of a current flowing in the current path through the field effect transistor. The circuit also includes a pair of sensing transistors that include a first sensing field effect transistor arranged with its drain and gate coupled with the drain and the gate of the field effect transistor, respectively, and a second sensing field effect transistor having a gate configured for receiving a replica of the drive signal. The second sensing field effect transistor is arranged with its current path in series with the current path of the first sensing field effect transistor. A sensing signal at a sensing node is indicative of the current intensity flowing in the current path of the field effect transistor.

Abstract: A water-in-oil emulsion of light fuel oil, and a process for the stabilization of a water-in-oil emulsion of a light fuel oil are described.

Abstract: A water-in-oil emulsion of light fuel oil, and a process for the stabilization of a water-in-oil emulsion of a light fuel oil are described.

Abstract: There is described a machine for the winding of tubular products, preferably with tensioned wires (8), including at least one disc (51-52) assembled to rotate on a base structure (2), a motor (9) adapted to drive the rotation of the disc (51-52, 101-103), a plurality of coils (3) assembled to rotate on supports (4) integral with said disc (51-52) and tensioning means (18, 30-31, 40-42), adapted to maintain the tension of the wires (8) constant during the winding of the tubular product (20). Said machine also includes a plurality of driving motors (5) associated to respective coils (3), adapted to feed the wires (8) and operating means (70) and potentiometers (19), adapted to control the unwinding speed of the wires (8) from the coils (3), which are driven by the motors (5).

Abstract: There is described a machine for the winding of tubular products, preferably with tensioned wires (8), including at least one disc (51-52) assembled to rotate on a base structure (2), a motor (9) adapted to drive the rotation of the disc (51-52, 101-103), a plurality of coils (3) assembled to rotate on supports (4) integral with said disc (51-52) and tensioning means (18, 30-31, 40-42), adapted to maintain the tension of the wires (8) constant during the winding of the tubular product (20). Said machine also includes a plurality of driving motors (5) associated to respective coils (3), adapted to feed the wires (8) and operating means (70) and potentiometers (19), adapted to control the unwinding speed of the wires (8) from the coils (3), which are driven by the motors (5).

Abstract: The present invention provides safe pharmaceutical formulations for drugs used in the treatment of drug addiction, namely formulations which render the abusive administration of the drug contained in these formulations not feasible, together with processes for obtaining said formulations.

Abstract: A method and system for restraining an occupant on a vehicle seat, the occupant being pulled into the vehicle seat is provided with a force by a belt tensioner when a critical driving state is detected and then held in a pulled-back position on the vehicle seat with a holding force. The holding force selected is lower than the force for pulling the occupant back. A forward-looking detection system for a dangerous driving state and an occupant-position detection system unprovided, in which, when a dangerous driving state is detected, a belt tensioner is subjected to a force and the occupant is thereby pulled into the vehicle seat, and in which the occupant is held in a pulled-back position on the vehicle seat with a holding force which is lower than the force for pulling the occupant back.

Abstract: A method and system for restraining an occupant on a vehicle seat, the occupant being pulled into the vehicle seat is provided with a force by a belt tensioner when a critical driving state is detected and then held in a pulled-back position on the vehicle seat with a holding force. The holding force selected is lower than the force for pulling the occupant back. A forward-looking detection system for a dangerous driving state and an occupant-position detection system unprovided, in which, when a dangerous driving state is detected, a belt tensioner is subjected to a force and the occupant is thereby pulled into the vehicle seat, and in which the occupant is held in a pulled-back position on the vehicle seat with a holding force which is lower than the force for pulling the occupant back.

Abstract: In a method for triggering a two-stage air bag generator in a motor vehicle, an acceleration signal is measured, processed and evaluated with respect to the accident severity according to a first evaluation process. As a function of the determined accident severity, a triggering decision is made at least for the triggering of a first stage of the gas generator. At least until a defined time period T1 has elapsed since the ignition of the first stage, the acceleration signal is evaluated according to a second evaluation process with respect to the accident severity before, on the basis of defined triggering conditions, as a function of the determined accident severity, a triggering decision is made for igniting the second stage of the gas generator.

Abstract: In a belt roller for a safety belt system, a rod assembly has a torsion rod as well as at least one torsion sleeve which surrounds it coaxially. A stopping mechanism is provided with at least two axially offset stopping element sections, which can be adjusted either individually or jointly to the at least one torsion sleeve and to the torsion rod through the use of a control mechanism depending on the energy absorption capacity to be applied.

Abstract: The invention relates to a collision-protection system for passengers of motor vehicles. In a manner which is known in principle, an airbag is automatically inflated in the event of an accident. In order to control the direction and speed of expansion, the airbag is wholly or partially encased by a tough, plastically deformable film, which is overstretched and torn open as the airbag is inflated.

Abstract: A device for recognizing a child's seat which is strapped to the front passenger's seat of a motor vehicle is provided. Such a device is required in order to inhibit release of a front seat passenger's side airbag when a child's seat is strapped on the front passenger's seat. An identification carrier, for example, an electrical tuned circuit or an intelligent data carrier, which attenuates an electromagnetic measurement field in a characteristic manner, is fitted to the child's seat. The presence and, possibly, also the type of child's seat used can be recorded.