Office Freylinger

A system includes a power converter, the power converter including: a direct current (DC) busbar including: a first magnetic layer; a second magnetic layer; a third magnetic layer; a first direct current connector between the first magnetic layer and the second magnetic layer; and a second direct current connector between the second magnetic layer and the third magnetic layer.

The present invention provides an optical fiber cable (100), comprising: a core (102) comprising a plurality of optical fibers (104); and an outer sheath (106) comprising a plurality of segments (108) and a plurality of protruding elements (110) located between adjacent segments (108). The width (w_pe) of a protruding element (110) is 4% to 20% of the width (w_s) of a segment (108). The optical fiber cable (100) of the present invention has superior blowing performance during installation in a duct compared to conventional cables.

A system includes a power converter, the power converter including: a first alternating current (AC) busbar; and a printed circuit board (PCB), the PCB including a first current sensor to sense a first current in the first AC busbar, wherein the first current sensor includes: a first coil in a first layer of the PCB, a second coil in the first layer of the PCB, the second coil connected to the first coil in a series electrical connection, and a first current signal conditioner connected to the first coil and the second coil.

The present disclosure relates to a wearable device for detecting a user state of a user and a method thereof. The wearable device comprises a data processing module and a data collection module , for detecting in real-time fatigue measurement and muscle activity even with minimal limb movement. The present disclosure provides obtaining a set of target data associated with the user by the data collection module and thereafter extracting from it a set of target features by the processing unit . Thereafter, based on the set of target features, a fused set of features are generated and then classified into one or more categories. The one or more categories comprises a fatigue level category, a user activity category and/or a user health category based on which the user state is determined.

A power converter includes a first switch including a first connection and a second connection, wherein the first connection of the first switch is configured to be connected to a positive voltage node; a second switch including a first connection and a second connection, wherein the first connection of the second switch is configured to be connected to a negative voltage node; and a diode including an anode and a cathode, wherein the cathode of the diode is connected to the second connection of the first switch and the anode of the diode is connected to the second connection of the second switch; wherein the second connection of the first switch is configured to be connected to a first end of a rotor winding, and the second connection of the second switch is configured to be connected to a second end of the rotor winding.

A system includes: an alternating current (AC) to direct current (DC) converter (AC-DC converter) connectable to a load; a DC to DC converter (DC-DC converter) connected to the AC-DC converter and connectable to a battery; and one or more controllers including a current limiting compensator to control an operation of the AC-DC converter to control a voltage from the battery to the load.

A system includes a power converter, wherein the power converter includes: a first power module; and a cooling module configured to extract heat from the first power module, wherein the cooling module includes: a first heatsink plate with a connector; and a second heatsink plate with an extruded connector, wherein the extruded connector of the second heatsink plate is laser welded to the connector of the first heatsink plate.

A system for a power converter includes a rectifier, a capacitor connected to the rectifier, a direct current to alternating current inverter (DC-AC inverter) connected to the capacitor, and a switch to operate in a first position to connect a motor to an AC side of the DC-AC inverter and disconnect the motor from an AC side of the rectifier, and a second position to connect the motor to the AC side of the rectifier and disconnect the motor from the AC side of the DC-AC inverter.

A system includes a transformer including a primary side and a secondary side; a matrix converter connected to the primary side of the transformer and connected to a line for a voltage source or a load; and an active filter configured to reduce a ripple in the system.

The invention provides a method for treatment of a surface having a least one defect, said defect defining a recess portion for the surface, the method comprising the steps of obtaining height data representing a height profile of the surface, generating a 2-dimensional height mapping (12) of the surface from the acquired height data, processing the 2-dimensional height mapping (12) to generate a sequence of printable 2D images (u1-u6), the printable 2D images representing 3D printable area(s) corresponding to recess portion(s) of the at least one defect, and performing a 3D additive manufacturing process with a 3D printer to repair the surface by feeding the sequence of printable 2D images (u1-u6) as instructions to the 3D printer.