Stmicroelectronics S.r.l.

Stmicroelectronics International N.v.

Stmicroelectronics Design and Application S.r.o.

Gianluigi Forte

Dino Costanzo

Andrea Spampinato

Jiri Ryba

StelloMatteo Bille'

StelloMatteo Bille′

Stello Matteo Bille′

Methods, systems, and devices for fault detection at pulse width modulation converters are described. An example of one such method includes receiving a first signal including a first pulse width modulation waveform. The first signal may be for controlling a switching component via a first node. A second signal may be received. The second signal may include a second pulse width modulation waveform. The second signal may be output by a second node of the switching component. One or more operations may be performed to compare the second signal with one or more other signals or one or more thresholds. A third signal may be transmitted based at least in part on the comparison of the second signal with the one or more other signals or thresholds. The third signal may indicate whether a fault has occurred at the switching component.

Fault detection methods and devices for pulse width modulation converters

A multi-phase electric motor includes a stator winding. The multi-phase electric motor is controlled by regulating a current flowing in the multi-phase electric motor in response to an applied voltage. An overload condition of the multi-phase electric motor is detected by monitoring a thermal increase of the value of a stator resistance of the stator winding of the multi-phase electric motor during a steady state condition of said multi-phase electric motor in which the current flowing in the motor has constant phase, and the motor is operating at constant load with constant speed.

Method for controlling electric motors, corresponding circuit and computer program product

A driving circuit for an electric motor including multiple windings includes a sensing circuit to sense motor winding currents. A motor rotation angle signal is generated from the sensed currents and motor control voltages are generated as a function of the motor rotation angle signal. The motor windings are driven with motor drive voltages obtained by injecting into the motor control voltages injection pulses. The sensed currents include both torque components and injection components. The motor rotation angle signal is generated as a function of the injection components of the sensed currents.

Method of controlling electric motors, corresponding device and motor

An analog to digital conversion includes a multiplexor circuit for receiving analog input signals and, responsive to a select input, an analog to digital converter circuit to convert a selected analog signal into a digital signal, a conversion starting device to send a conversion start signal on the basis of a trigger event, the conversion starting device being responsive to a select input, a sequencer to control the analog to digital converter circuitry to execute one sequence conversion on the basis of one conversion sequence instruction, and a FIFO register block to receive conversion sequence instructions and being able to queue each new received conversion sequence instruction if an actual conversion sequence is in progress and to control the sequencer to execute a new sequence conversion instruction after the conversion sequence is executed.

Analog to digital conversion apparatus with a reduced number of ADCs

An analog-to-digital converter device may include an input multiplexer circuit having analog input terminals configured to receive a respective plurality of analog input signals. The input multiplexer circuit may be responsive to a first select input. The device may also include a trigger multiplexer circuit having input terminals configured to receive respective triggering signals. The trigger multiplexer circuit may be responsive to a second select input. Analog-to-digital converter circuitry may be configured to convert the selected analog signal into a digital signal. A sequence arbiter may be coupled to the first and second select inputs and may have input terminals configured to receive a respective plurality of conversion sequence configuration signals. The sequence arbiter may be configured to manage each conversion sequence of the analog-to-digital converter circuitry based upon the relative conversion sequence configuration signal received, and control the conversion sequences.

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Camporotondo Etneo, Italy

Gianluigi Forte