Abstract: A dynamically addressable master-slave system and a method for dynamically addressing slave units includes a master unit and a plurality of slave units, such that the slave units are interconnected with the master unit via a bus system. The respective network addresses of the slave units are assigned to the respective serial numbers of these slave units in a table in the master unit according to the position thereof in the system according to a determined order. Upon replacement of slave units, a list of serial numbers of the units to be replaced is transferred to the master unit in the sequence of the acquisition of the serial numbers, which master unit replaces these serial numbers in the table with the serial numbers of the replaced slave units transmitted to the master unit.

Abstract: The disclosure relates to an assembly composed of two or more electric drives, each of which is provided with a housing that is preferably closed all around; a transceiver or radio transmitter inside the housing of each electric drive is configured for wireless data communication with a master controller; for this purpose, a properly mounted transmission opening is provided in each housing in order for data to be transmitted and received through the transmission opening.

Abstract: The disclosure relates to an assembly composed of two or more electric drives, each of which is provided with a housing that is preferably closed all around; a transceiver or radio transmitter inside the housing of each electric drive is configured for wireless data communication with a master controller; for this purpose, a properly mounted transmission opening is provided in each housing in order for data to be transmitted and received through the transmission opening.

Abstract: A dynamically addressable master-slave system and a method for dynamically addressing slave units includes a master unit and a plurality of slave units, such that the slave units are interconnected with the master unit via a bus system. The respective network addresses of the slave units are assigned to the respective serial numbers of these slave units in a table in the master unit according to the position thereof in the system according to a determined order. Upon replacement of slave units, a list of serial numbers of the units to be replaced is transferred to the master unit in the sequence of the acquisition of the serial numbers, which master unit replaces these serial numbers in the table with the serial numbers of the replaced slave units transmitted to the master unit.

Abstract: The invention relates to a method and a device for detecting fault currents in a regulated DC intermediate circuit having an active power factor correction.

Abstract: The disclosure relates to a temperature monitoring assembly for monitoring the windings of a motor, comprising at least one temperature sensor or thermal circuit breaker arranged outside of and spaced from the windings of the motor, and at least one heat conducting component, which extends from a first component section for heat coupling and heat transfer, which is in contact with or adjacent to the windings, to a second component section for heat coupling and heat transfer, on or adjacent to the temperature sensor.

Abstract: A master-slave system includes a master unit having a digital output for providing a signal or a serial signal sequence of signals, and at least two slave units. Each of the slave units includes at least one digital serial memory having a size of one bit, and each slave unit includes an input and an output. The slave units are serially connected to one another via the inputs and the outputs via a signal line (5). The output of a first slave unit is connected via the signal line to the digital output of the master unit. The master slave system is configured so that a signal supplied by the digital output is detected at the input of the slave unit, in order to raise the address of the corresponding slave unit in each case by the value “1”, to store the signal change in the memory and to output a signal corresponding to the content of the memory at the output of the memory.

Abstract: An electronic circuit comprises at least one semiconductor switch mounted with its switching path in series with an inductive load to be triggered, and at least one freewheeling element that interacts with the semiconductor switch during switching phases and is also mounted in series with the load. A control unit controls a control connection of the semiconductor switch with a variable control current as a function of the time profile of a voltage measured at the freewheeling element and/or as a function of the time profile of the voltage measured at the switching path. A method for triggering a semiconductor switch of such a circuit, triggered by a variable control current for switching, the control current predefined as a function of the time profile of a voltage measured at the freewheeling element and/or as a function of the time profile of the voltage measured at the switching path.

Abstract: The disclosure relates to a temperature monitoring assembly for monitoring the windings of a motor, comprising at least one temperature sensor or thermal circuit breaker arranged outside of and spaced from the windings of the motor, and at least one heat conducting component, which extends from a first component section for heat coupling and heat transfer, which is in contact with or adjacent to the windings, to a second component section for heat coupling and heat transfer, on or adjacent to the temperature sensor.

Abstract: An electronic control circuit for an electronically commutated motor (ECM) is disclosed. A plurality of power transistors controls the ECM, and a reference transistor is formed together with the power transistors on a common support. A control unit is configured to, in a test mode: apply a test current to the reference transistor and one of the power transistors respectively; measure a saturation voltage of the reference transistor and one of the power transistors; evaluate a saturation voltage difference between the measured saturation voltages of the reference transistor and the respective power transistor; evaluate a rate of change of saturation voltage differences between a first iteration of the test mode and a second iteration of the test mode; and determine an expected remaining service life of the power transistors based on the temperature of the support during the test mode and the rate of change of the saturation voltage differences.

Abstract: The invention relates to a method and a device for detecting fault currents in a regulated DC intermediate circuit having an active power factor correction.

Abstract: A master-slave system includes a master unit having a digital output for providing a signal or a serial signal sequence of signals, and at least two slave units. Each of the slave units includes at least one digital serial memory having a size of one bit, and each slave unit includes an input and an output. The slave units are serially connected to one another via the inputs and the outputs via a signal line (5). The output of a first slave unit is connected via the signal line to the digital output of the master unit. The master slave system is configured so that a signal supplied by the digital output is detected at the input of the slave unit, in order to raise the address of the corresponding slave unit in each case by the value “1”, to store the signal change in the memory and to output a signal corresponding to the content of the memory at the output of the memory.

Abstract: A control circuit (1) for an electronically commutated, direct current motor (M) without a collector with a semiconductor end stage (2) which is controlled by an electronic commutation control (4) via a driver stage (6) for the time-offset control of the stator coils (U,V,W) of the motor (M) for the purpose of producing a magnetic rotating field for a rotor depending on the rotor rotation position. Two redundant stall protection units (10, 12) monitor the motor (M) during operation for rotation of the rotor, whereby in the case of a determined stall situation, the first stall protection unit (10) deactivates the driver stage (6) and the second stall protection unit (12) shuts off the supply voltage (UVCC) for the driver stage (6).

Abstract: An electronic circuit comprises at least one semiconductor switch mounted with its switching path in series with an inductive load to be triggered, and at least one freewheeling element that interacts with the semiconductor switch during switching phases and is also mounted in series with the load. A control unit controls a control connection of the semiconductor switch with a variable control current as a function of the time profile of a voltage measured at the freewheeling element and/or as a function of the time profile of the voltage measured at the switching path. A method for triggering a semiconductor switch of such a circuit, triggered by a variable control current for switching, the control current predefined as a function of the time profile of a voltage measured at the freewheeling element and/or as a function of the time profile of the voltage measured at the switching path.

Abstract: The disclosure relates to an electronic control circuit for an electric device, in particular designed as a commutation electric system of an EC motor, having a plurality of power transistors which are controlled in an operating mode for controlling the device. An additional, similar, non-charged reference transistor in the operating mode of the power transistors is arranged or formed together with the power transistors on a common support or substrate.

Abstract: A control circuit (1) for an electronically commutated, direct current motor (M) without a collector with a semiconductor end stage (2) which is controlled by an electronic commutation control (4) via a driver stage (6) for the time-offset control of the stator coils (U,V,W) of the motor (M) for the purpose of producing a magnetic rotating field for a rotor depending on the rotor rotation position. Two redundant stall protection units (10, 12) monitor the motor (M) during operation for rotation of the rotor, whereby in the case of a determined stall situation, the first stall protection unit (10) deactivates the driver stage (6) and the second stall protection unit (12) shuts off the supply voltage (UVCC) for the driver stage (6).

Abstract: The present invention relates to a method and a system for controlling a permanent magnet excited, brushless, electronically commutated, three-phase electric motor (2) wherein a single-phase main AC voltage (UN) having a mains frequency (fN) is rectified and supplied to an inverter (8) via a slender intermediate circuit (6) containing no, or minimum, intermediate circuit reactance as intermediate circuit voltage (Uz) pulsating at double the mains frequency (2fN) which is actuated for powering and commutating the electric motor (2). Control takes place by means of a field-oriented current-space vector regulator, wherein a q-current (iq) as torque-forming component of the current-space vector (i) is regulated perpendicularly to the permanent magnetic field and a d-current (id) can be regulated as a field-influencing component of the current-space vector (i) in the direction of the permanent magnet field.

Abstract: The present invention relates to a method and a control system for driving a three-strand brushless, electronically commutated electric motor (2), wherein a line AC voltage (UN) is rectified and fed via a slim DC link (8) with minimum DC link reactance as a DC link voltage (UZ) to an inverter (10) that can be driven to supply and commutate the electric motor (2). A pulsating DC voltage (UG) initially generated by rectifying the line AC voltage (UN) is dynamically increased with respect to its instantaneous values by a step-up chopper (18) in such a manner that the resulting DC link voltage (UZ) with a reduced ripple always lies above a defined limit voltage (U18/U1) over time. The control system consists of a network rectifier (6), a downstream slim DC link (8) with minimum DC link reactance and a controllable inverter (10) that can be supplied via the DC link and driven to commutate the electric motor (2).

Abstract: The present invention relates to a method and a system for controlling a permanent magnet excited, brushless, electronically commutated, three-phase electric motor (2) wherein a single-phase main AC voltage (UN) having a mains frequency (fN) is rectified and supplied to an inverter (8) via a slender intermediate circuit (6) containing no, or minimum, intermediate circuit reactance as intermediate circuit voltage (Uz) pulsating at double the mains frequency (2fN) which is actuated for powering and commutating the electric motor (2). Control takes place by means of a field-oriented current-space vector regulator, wherein a q-current (iq) as torque-forming component of the current-space vector (i) is regulated perpendicularly to the permanent magnetic field and a d-current (id) can be regulated as a field-influencing component of the current-space vector (i) in the direction of the permanent magnet field.

Abstract: The present invention relates to a method and a control system for driving a three-strand brushless, electronically commutated electric motor (2), wherein a line AC voltage (UN) is rectified and fed via a slim DC link (8) with minimum DC link reactance as a DC link voltage (UZ) to an inverter (10) that can be driven to supply and commutate the electric motor (2). A pulsating DC voltage (UG) initially generated by rectifying the line AC voltage (UN) is dynamically increased with respect to its instantaneous values by a step-up chopper (18) in such a manner that the resulting DC link voltage (UZ) with a reduced ripple always lies above a defined limit voltage (U18/U1) over time. The control system consists of a network rectifier (6), a downstream slim DC link (8) with minimum DC link reactance and a controllable inverter (10) that can be supplied via the DC link and driven to commutate the electric motor (2).