Abstract: A method and a parallel connection arrangement for equalizing the output powers of power converter units (INU11, INU12), in which power converter units is a semiconductor switch bridge controlled with pulse width modulation, and in which is a control unit arrangement (CU1, CU2) for forming control pulses, with which the semiconductor switches are controlled. The control unit arrangement delays the falling edge of the control pulses of at least one semiconductor switch of at least one power converter unit.

Abstract: Method and apparatus to start a frequency converter equipped with a direct current intermediate circuit, particularly when a permanent magnet motor whose rotor is rotating at the start-up time is connected to it, wherein the frequency converter has a network bridge (10) and load bridge (11), and the load bridge has controllable power semiconductor switches of the upper and lower branch (V1-V6) and parallel connected zero diodes (D1-D6), and a direct current intermediate circuit between them, and the said frequency converter uses a current transducer placed in the direct current intermediate circuit, and the analogue current signal composed by it features samples of the measured output currents, and the diverter switches of the frequency converter's upper branch are controlled using the bootstrap method, wherein start-up is initiated by controlling the controllable power semiconductor switch of the lower branch of at least one output phase to a conductive state for one or several periods of time, preferably of

Abstract: Method for synchronizing inverter units (INU11, INU12) that are connected in parallel and supply a motor, and a parallel connection arrangement, in which motor is either one winding, which is supplied by inverter units connected in parallel, or a plurality of parallel windings, in which each winding is supplied by its own inverter unit, in which parallel connection one inverter unit functions as a master and the others as slaves, in which method a telecommunications bus is arranged between the units, and in which each inverter unit has its own modulation cycle counter, which are synchronized with each other on the basis of telecommunications messages, preferably serial telecommunications messages.

Abstract: The present invention relates to a tool for pipe bending comprising at least two branches (1, 3), at least one link arm (8), at least one former (7), and at least one sliding jaw (9), said at least one former (7) and said at least one sliding jaw (9) being intended to be placed on either side of a pipe (12) to be bent, and said at least one former (7) being fitted to, or constituting a part of, a first branch (1) of said at least two branches (1, 3) at the same time as said at least one sliding jaw (9) being fitted to, or constituting a part of, a second branch (3) of said at least two branches (1, 3). At least one of said at least one former (7) has at least one pipe-positioning index (18, 19), one of which is intended to be placed as close as possible to a corresponding bending-measure index on the pipe (12) when the pipe (12) is placed in the tool in order to be bent. The present invention also relates to a former (7) for use as a part of a tool for pipe bending.

Abstract: Method and arrangement for connecting an AC electric motor (M1, M2, . . . MN) to an AC electricity network (L) in a system which comprises a frequency converter (FC), with which the motor is started, and contactors (S11, S12, S21, S22, SN1, SN2), in which method the supply source is changed by means of the contactors from the frequency converter to a direct network supply, in which method the frequency converter is stopped before changing the supply source, and in which method in connection with changing the supply source the control of the contactors is started before stopping the frequency converter.

Abstract: Method of and system for controlling the restart of an A.C. motor drive comprising an A.C. motor (4), a power converter (20, 21, 22) for stepless speed control of the A.C. motor and a load switch (3) arranged between the power converter and the A.C motor, wherein when the power converter (20, 21, 22) detects the output current to go below a predefined limit during the load switch opening it goes to a continuous output sensing mode, and when the output current goes above a predefined limit during the output sensing mode the power converter restarts automatically to a desired operating state.

Abstract: Method for synchronizing inverter units (INU11, INU12) that are connected in parallel and supply a motor, and a parallel connection arrangement, in which motor is either one winding, which is supplied by inverter units connected in parallel, or a plurality of parallel windings, in which each winding is supplied by its own inverter unit, in which parallel connection one inverter unit functions as a master and the others as slaves, in which method a telecommunications bus is arranged between the units, and in which each inverter unit has its own modulation cycle counter, which are synchronized with each other on the basis of telecommunications messages, preferably serial telecommunications messages.

Abstract: A method and a parallel connection arrangement for equalizing the output powers of power converter units (INU11, INU12), in which power converter units is a semiconductor switch bridge controlled with pulse width modulation, and in which is a control unit arrangement (CU1, CU2) for forming control pulses, with which the semiconductor switches are controlled. The control unit arrangement delays the falling edge of the control pulses of at least one semiconductor switch of at least one power converter unit.

Abstract: A method and a system for measuring a quantity, such as current, of a power converter apparatus including parallel-connected power converter units. A component quantity, of each power converter unit is measured, transmitted digitally in serial communication format to a control unit (CU), and summed to produce a summed quantity. The component quantity data are transmitted to the control unit with the least significant bit (LSB) first. The summing is started as soon as the LSBs of the component quantities have been received. The LSB of the sum is transmitted further as soon as the LSBs of the component quantities have been summed. After this, the rest of the bits are summed in the order of arrival, with the most significant bit (MSB) last. The respective summing data are transmitted further in the order of arrival as soon as the corresponding bits of the component quantities have been summed.

Abstract: A method and a system for controlling the mains bridge of a four-quadrant PWM frequency converter provided with a direct-voltage intermediate circuit when power is flowing into the supply network. The mains bridge includes a controlled mains bridge (INU) for rectification of the mains voltage to produce a DC intermediate-circuit direct voltage (UDC) consisting of arms conducting during the positive and negative half cycles of the phase voltage of each phase of the supply network, each arm having a switch unit formed by a diode (D1–D6) and a power semiconductor switch (V1–V6), e.g. an IGBT, connected in inverse-parallel with it.

Abstract: The present invention relates to a blister pack device for storing and dispensing a dosage unit, including a container having an opening for receiving a blister pack. The container is provided with a dispensing mechanism for ejecting a dosage unit from a blister or the blister pack, the dispensing mechanism includes a lever arm pivotally mounted on the container and a cavity in the container for receiving an ejected dosage unit wherein the lever arm has a first open position allowing the blister pack to be positioned under the arm and a second lowered position for ejecting the dosage unit from the blister into the cavity.

Abstract: 1.

Abstract: A method and a system for controlling the mains bridge of a four-quadrant PWM frequency converter provided with a direct-voltage intermediate circuit when power is flowing into the supply network, said mains bridge comprising a controlled mains bridge (INU) for rectification of the mains voltage to produce a DC intermediate-circuit direct voltage (UDC) consisting of arms conducting during the positive and negative half cycles of the phase voltage of each phase of the supply network, each arm having a switch unit formed by a diode (D1-D6) and a power semiconductor switch (V1-V6), e.g.

Abstract: A broadcast receiver and a method for setting the broadcast receiver, comprising receiving a primary broadcast sent by a broadcast station and retrieving program associated data made available by said broadcast station. The method comprises a first channel, a primary broadcast channel BC, and a second channel, an interaction channel, for retrieving the program associated data (PAD) from the broadcast station, whereby a browser sends an HTTP or a WAP request using an Internet connection. The method comprises retrieving a uniform resource locator of the program associated data (PAD) as station associated data (SAD) from a station associated data site (SADS) the station associated data comprising program associated data relating to the primary broadcast, coverage information and frequency information of included broadcast stations and the broadcast receiver being capable of setting the browser and the broadcast receiver unit by suing this SAD information.

Abstract: The present invention relates to a blister pack device for storing and dispensing a dosage unit, comprising a container having an opening for receiving a blister pack. The container is provided with a dispensing means for ejecting a dosage unit from a blister or the blister pack, the dispensing means comprises a lever arm pivotally mounted on the container and a cavity in the container for receiving an ejected dosage unit wherein the lever arm has a first open position allowing the blister pack to be positioned under the arm and a second lowered position for ejecting the dosage unit from the blister into the cavity.

Abstract: An inhalation device for administering a powdered medicament by inhalation including a suction tube through which the medicament is drawn on inhalation by a user, a blister pack, a housing which carries the blister pack and has housing surfaces, the suction tube being removably connected to the housing and having a distal end which can interact with the blister pack and a proximal end through which the user inhales, and a resilient member that resiliently biases the suction tube into a position where it is spaced from the housing surfaces to facilitate grasping of the suction tube by the user when the inhalation device is ready for use.

Abstract: The present invention relates to an inhalation device for administering a powdered medicament by inhalation. The inhalation device (1) comprises a suction tube (4) through which the medicament is drawn on inhalation by a user and a blister pack assembly (5). The suction tube (4) has a distal end (7) which interacts with the blister pack assembly (5) and a proximal end (8) through which the user inhales. The inhalation device (1) is also provided with biasing means (6) which raise the suction tube (4) away from the blister pack assembly (5).

Abstract: End or concluding production of data carrying communication equipment in traffic checking systems, which comprise a plurality of stationary communication equipments for remotely checking passing vehicles which are provided with mobile data carrying units (23) for remote communication. The data carrying communication equipment of the stationary equipment and the vehicle units are manufactured initially in serial production in non-defined shape without any storing of the data required for the communication. For end production including storing of data a plurality of computers (2) for general data processing and data storage media (1, 16) which are associated therewith and can be individually handled are used. A system administrator (AY) produces a storage medium (3) containing all the data for the communication.