Abstract: A method supplies a lighting device with electrical energy, wherein the lighting device includes at least two integrated circuits with at least one LED group by a current source associated with this LED group. The method includes generating a supply voltage by a voltage regulator, adjusting a LED group current passing the LED groups by one of the respective current sources , detecting the voltage drops across the current sources, selecting one voltage drop of each integrated circuit as a characteristic voltage drop, generating a control value of the respective integrated circuit, according to the characteristic voltage drop, reducing the control voltage when the control voltage is greater than a control value of the respective integrated circuit, and controlling the output voltage in accordance with the control voltage and/or in accordance with a control bus voltage derived from the control voltage.

Abstract: A method for supplying a site with energy and an energy supply station for supplying consumers, like construction machines with storage means for storing energy, a consumer connection for charging and/or supplying a corresponding consumer with power, a supply connection for connecting to an energy supply source and feeding electrical energy, and a power and/or energy control device for controlling the feeding and/or storing and/or releasing the electrical energy.

Abstract: A cover electrically couples multiple storage cells of an electrical energy storage module. The cover has electrically conductive contact sockets which are embedded in an electrically insulating material of the cover and taper inwards on their insides, and into which terminals of the storage cells can be inserted to make electrical contact. Two connections are provided, one of which forms a positive terminal and the other of which forms a negative terminal of the electrically coupled storage cells. Multiple conductors electrically couple the storage cells, in particular for coupling the storage cells in series, in a predefined manner. The conductors are completely accommodated inside the cover, and the cover can be mounted on the storage cells such that it can be detached non-destructively.

Abstract: A method operates a storage system for a vehicle. The storage system has a first storage module and a second storage module for providing electrical energy to or for receiving electrical energy from a distribution network. The distribution network is coupled to an electrical motor of the vehicle. The first storage module is coupled by a direct current voltage converter to the distribution network. The method determines whether an amount of a voltage difference between a power supply voltage of the distributor network and a first storage voltage of the first storage module is equal to or less than a voltage threshold value. The method carries out one or more measures for increasing the amount of the voltage difference when it is determined that the amount is equal to or less than the voltage threshold value.

Abstract: A current source arrangement includes a first current source having a first terminal and a second terminal; a second current source having a first terminal and a second terminal; and a DC/DC converter having a first terminal pair and a second terminal pair. The DC/DC converter is designed to convert a first direct voltage applied at the first terminal pair into a direct voltage output at the second terminal pair, and/or to convert a first direct voltage applied at the second terminal pair into a direct voltage output at the first terminal pair. The first terminal pair of the DC/DC converter is connected in parallel to the first current source, wherein the second terminal pair of the DC/DC converter is connected in series to the second current source. The second terminal pair of the DC/DC converter and the second current source are connected in parallel to the first current source.

Abstract: A cover electrically couples multiple storage cells of an electrical energy storage module. The cover has electrically conductive contact sockets which are embedded in an electrically insulating material of the cover and taper inwards on their insides, and into which terminals of the storage cells can be inserted to make electrical contact. Two connections are provided, one of which forms a positive terminal and the other of which forms a negative terminal of the electrically coupled storage cells. Multiple conductors electrically couple the storage cells, in particular for coupling the storage cells in series, in a predefined manner. The conductors are completely accommodated inside the cover, and the cover can be mounted on the storage cells such that it can be detached non-destructively.

Abstract: A storage system configured to deliver electric power for propulsion of a vehicle includes a first storage module with at least N first sub-modules for the storage of electrical energy, where N>1, where the first storage module includes a switching unit to connect the N sub-modules in series, forming a series circuit, when the storage system is in a charge mode, and to connect the N sub-modules in parallel, forming a parallel circuit, when the storage system is in a drive mode. The storage system also includes a second storage module with at least one second sub-module for the storage of electrical energy, where the second storage module comprises a DC voltage converter which is configured to couple the second sub-module with the first storage module. A control unit is configured to control the switching unit and the DC voltage converter.

Abstract: A current source arrangement includes a first current source having a first terminal and a second terminal; a second current source having a first terminal and a second terminal; and a DC/DC converter having a first terminal pair and a second terminal pair. The DC/DC converter is designed to convert a first direct voltage applied at the first terminal pair into a direct voltage output at the second terminal pair, and/or to convert a first direct voltage applied at the second terminal pair into a direct voltage output at the first terminal pair. The first terminal pair of the DC/DC converter is connected in parallel to the first current source, wherein the second terminal pair of the DC/DC converter is connected in series to the second current source. The second terminal pair of the DC/DC converter and the second current source are connected in parallel to the first current source.

Abstract: The rechargeable battery arrangement includes a first plurality of series-connected first charge storage cells, a second plurality of series-connected second charge storage cells, and a third plurality of series-connected third charge storage cells. The arrangement further includes a first converter having a first connection pair is connected to the third plurality of series-connected third charge storage cells, and a second connection pair, connected in series with the first plurality of series-connected first charge storage cells. A series connection consisting of the first plurality of first charge storage cells and the first converter is connected in parallel to the second plurality of second charge storage cells. Moreover, the first converter is configured to convert at least one of a voltage and a current supplied by the third plurality of series-connected third charge storage cells, and to output said voltage and/or current at the second connection pair.

Abstract: A method operats a storage system for a vehicle. The storage system has a first storage module and a second storage module for providing electrical energy to or for receiving electrical energy from a distribution network. The distribution network is coupled to an electrical motor of the vehicle. The first storage module is coupled by a direct current voltage converter to the distribution network. The method determines whether an amount of a voltage difference between a power supply voltage of the distributor network and a first storage voltage of the first storage module is equal to or less than a voltage threshold value. The method carries out one or more measures for increasing the amount of the voltage difference when it is determined that the amount is equal to or less than the voltage threshold value.

Abstract: The rechargeable battery arrangement includes a first plurality of series-connected first charge storage cells, a second plurality of series-connected second charge storage cells, and a third plurality of series-connected third charge storage cells. The arrangement further includes a first converter having a first connection pair is connected to the third plurality of series-connected third charge storage cells, and a second connection pair, connected in series with the first plurality of series-connected first charge storage cells. A series connection consisting of the first plurality of first charge storage cells and the first converter is connected in parallel to the second plurality of second charge storage cells. Moreover, the first converter is configured to convert at least one of a voltage and a current supplied by the third plurality of series-connected third charge storage cells, and to output said voltage and/or current at the second connection pair.

Abstract: An energy storage system is provided for an electrically driven vehicle, having a first energy storage unit which provides sufficient basic electric power to operate at least one electric motor of the vehicle. The first energy storage unit is connected to the electric motor of the vehicle via an inverter. A connection is provided via which at least one additional energy storage unit can be connected parallel to the first energy storage unit. In another variant, an energy storage system for an electrically driven vehicle has three energy storage units, each of which has at least one energy store. The three energy storage units are connected such that each energy storage unit provides one phase of a three-phase alternating current for an electric motor of the vehicle. The individual energy storage units can be expanded by adding additional energy stores.