Abstract: A method for obtaining an indication of a faulty load condition of a multi-phase electric motor includes: (a) starting, a time measurement unit, (b) measuring a recirculation time interval for as long as a current that continues to flow has a magnitude larger than a threshold value, (c) continuing, in case the recirculation time interval is not terminated during the switch-off interval, the time measurement at least in a next switch-off interval, (d) repeating, for additional switch-off intervals the steps (a), (b), and (c) for respective motor phases, (e) comparing (1) the measured recirculation time intervals for respective motor phases with each other and/or (2) for one motor phase in sequential succession with each other and/or (3) with the expectation value of the respective motor phase, and (f) determining, based on a deviation, the indication of the faulty load condition.

Abstract: The invention relates to an ultrasonic measuring system (10), in particular for measuring distance and/or as a parking aid in vehicles, having an electroacoustic ultrasonic transducer (12) which has a oscillating element (14), does not have a voltage converter, can be alternately operated as an ultrasonic transmitter and an ultrasonic receiver and has a signal connection (16), which is used either as an input or as an output of the ultrasonic transducer (12), and an earth connection (18) which is connected to earth, and a control and evaluation unit (20) for exciting the oscillating element (14) of the ultrasonic transducer (12) to emit ultrasonic waves for operating the ultrasonic transducer (12) during a transmission interval for the purpose of subsequently deactivating the excitation of the oscillating element (14) and attenuating the latter during a decay phase and for receiving and processing ultrasonic waves in a reception interval.

Abstract: Data transmission method for a two-wire data bus from a transmitter having ports to a receiver having ports. The method comprises the steps of: detecting a first common-mode voltage swing on the ports and forming a first common-mode signal. Detecting a second common-mode voltage swing on the ports and forming a second common-mode signal. The transmitter sending data via the two-wire data bus. The receiver receiving the data. The voltage difference on the ports being compared with a lower and an upper reception threshold, wherein an output of an apparatus element assumes a first or second level on the basis of this comparison. Raising the differential send level if the absolute value of the first common-mode signal is greater than a first threshold value. Raising the upper reception threshold and/or lowering the lower reception threshold if the absolute value of the second common-mode signal is greater than a second threshold value.

Abstract: The disclosure relates to a light module and the matching housing for a bus node. The light module is provided to be used in a data bus system for transmitting data for light-emitting components via a differential two-wire data bus. The data bus transmits data between a bus master and at least two bus nodes. The data bus is divided by the bus nodes into at least two two-wire data bus sections. The housing comprises at least two rows of connections arranged opposite each other. Each row comprises one negative supply voltage connection and one positive supply voltage connection, which are arranged to be connected in pairs without intersection. The two connections for each of the respective two-wire data bus sections are arranged between the connections for the supply voltages in each row. A light-emitting component is arranged in a recess of the housing.

Abstract: The communication network for transmission of messages at different transmission rates comprises a bus line and a plurality of bus participants each of which includes a bus transceiver connected to the bus line and a control unit coupled with said bus transceiver, inter alia, for converting messages received via the bus line and for generating messages to be sent via the bus line, wherein each message includes control data and payload. The messages include first messages whose payload is transmitted via the bus line at a first rate and second messages whose payload is transmitted via the bus line at a second rate which is higher than the first rate, wherein the control data of each message contain a coding representing the transmission rate of the payload of the respective message.

Abstract: A MEMS-micro-mirror (30) is provided comprising a mirror body (50) that is rotatably arranged in a mirror frame (60) around a rotation axis (58) extending in a plane defined by the mirror body. The rotation axis extends through a first and a second mutually opposite end-portion (51, 53) of the mirror body. The mirror has a reflective first main surface (55) and opposite said first main surface a second main surface (57) provided with a first and a second pair of reinforcement beams. The pair of reinforcement beams (91a, 91b) extends from the first end-portion (51) in mutually opposite directions away from the rotation axis. The second pair of reinforcement beams (93a, 93b) extends from the second end-portion (53) in mutually opposite directions away from the rotation axis. Reinforcement beams of said first pair extend towards respective ones of said second pair.