Melexis Technologies

A current sensor assembly (100) comprising: a plurality of electrical conductor portions (20) for conducting electrical currents (Iu, Iv, Iw); each conductor portion having two interconnection portions disposed between two main body portions, the interconnection portions extending in a first direction (X) and spaced apart so to form an opening (25) between them; one or more printed circuit boards (10) comprising at least two lips or protrusions (11) accommodating at least two sensor devices (30); each sensor device being arranged at least partially inside one opening (25), and configured for measuring at least two magnetic field components oriented in a direction (Z) perpendicular to the semiconductor substrate (10) at two sensor locations spaced apart in the second direction (Y). A printed circuit board (10) having at least one cut-out (44) and lip (11) and magnetic sensor device (30). A power invertor comprising such current sensor assembly and/or such a PCB.

A soft sensor for measuring a force is described, the soft sensor comprising at least one soft sensor element (100), each of the at least one the soft sensor elements (100) comprising a sensor (110), a deformable element (120), wherein the deformable element (120) is deformable by the force, at least one element (130) for reacting with the sensor (110) for measuring the force by a deformation of the deformable element (120), wherein the deformable element (120) extends at least partially between the sensor (110) and the at least one element (130); and the soft sensor further comprising a cover (220, 220a) having two opposing sides, wherein a first side of the two opposing sides comprises a contact portion to which the force is to be applied and a second side of the two opposing sides is connected to a portion of the deformable elements (120) of each of the at least one soft sensor element (100), wherein there is a gap (250) between the second side of the cover (220, 220a) and the sensors (110) of the at least one soft sensor element (100) when no force is applied. Further, a robotic, which comprises the soft sensor, is described.

A sensor device (300) comprising: a first set of nodes connectable to a first set of sensors (310), a forward signal path (323) comprising: an analog circuit (ASP, 311) comprising at least one amplifier; a digitizer circuit (312) for providing digital values (dv); a digital processing circuit (DSP, 313); a digital-to-analog conversion circuit (317) for generating analog test signals (ats) based on digital test values (dtv) provided by a diagnostic controller (316); a multiplexer (318) for selectively routing signals (ss1) from the first set of input nodes to the ASP (311) in a first mode, and for routing the analog test signal (ats) to the ASP (311) in a second mode; the DSP being configured to analyse the digital values (dv) and/or to determine an angle or a phase. The sensor device may further comprise a second set of nodes connectable to a second set of sensors, and/or said sensors.

This invention provides a method and device for controlling brushless direct current (BLDC) motors, enabling smooth transitions between open loop control at low speeds and closed loop control at higher speeds. The device integrates modules for driving, observing, and transitioning between open and closed loop IB (current and back electromotive force) angles. A weighted average of the IB angles ensures stable motor performance during transitions, minimizing torque shocks, current spikes, and noise. The device also features current and voltage regulation to maintain accurate motor speed under varying conditions. Dynamic adjustment of weighting factors based on motor speed and signal-to-noise ratio further enhances control stability. This system improves motor efficiency in motor driving, reduces the risk of stalling, and optimizes performance across a wide range of operating speeds.

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