Patent application number | Description | Published |
20110210679 | Device and method for activating LED strings - A device for activating at least two LED strings includes a source of electrical power, a switching controller and at least two LED strings having one or more LED(s). The switching controller in this case includes means for generating an essentially constant current, and the LED strings cooperate with the switching controller in such a way that at least one of the LED strings is supplied with current at least part of the time using the essentially constant current generated by the means. | 09-01-2011 |
20120229243 | INTEGRATED CIRCUIT FOR INFORMATION TRANSFER - An integrated circuit for information transfer, having a substrate, at least one Hall element which is integrated into the substrate or situated on the substrate, a first coil which is situated essentially concentrically with respect to the Hall element and at a distance from the Hall element in the vertical direction and galvanically separated therefrom, and at least one second coil which is situated essentially concentrically with respect to the Hall element and galvanically separated therefrom and situated at a distance from the Hall element and the first coil in the vertical direction. The first coil and the second coil are electrically connected in series so that a current flow in the same direction results in the coils. | 09-13-2012 |
20130229019 | METHOD AND DEVICE FOR OPERATING A STARTER OF A VEHICLE - In a method for operating a starter of a vehicle, a physical variable is measured, and a starter current of the starter is limited or not limited as a function of the measured physical variable, the limiting action being terminated after a predetermined period of time in the event that the starter current is limited. | 09-05-2013 |
20130249285 | VOLTAGE CONTROL IN A VEHICLE ELECTRICAL SYSTEM - A method for maintaining a predetermined voltage in a battery-supported vehicle electrical system during the operation of an electrical starter includes steps of operating the electrical starter on the vehicle electrical system during a first time phase in series with a limiting resistor, in order to limit the current flowing through the starter, and operating the electrical starter on the vehicle electrical system during a second time phase with a reduced limiting resistance, in order to increase a power converted by the starter. A transition from the first time phase to the second time phase is controlled on the basis of electrical parameters sampled during the first time phase at the limiting resistor. | 09-26-2013 |
20130257335 | METHOD FOR OPERATING AN ELECTRIC MACHINE - A method and a circuit system for operating an electric machine are presented. The method is carried out in particular in a starting phase, a current being limited using a controllable resistor, the controllable resistor being implemented by at least one semiconductor switch, which is controlled using a clocked signal, and the signal being set in such a way that in shutdown phases, the at least one semiconductor switch is not completely shut down. | 10-03-2013 |
20140145651 | Battery Balancing with Reduced Circuit Complexity - A circuit for a battery includes a number n of battery cells which are connected in series between a positive battery terminal and a negative battery terminal. The number n is a natural number greater than 1. Due to the mounting in series of the n battery cells, a number of connection points are obtained between the n battery cell. The circuit further includes a discharge element comprising a first terminal which is connected or can be connected to a first discharge line and a second terminal which is connected or can be connected to a second discharge line. The circuit also includes a number of switches which can be connected at a first terminal to a respective connection point or to one of the positive or negative battery terminals and are connected at a second terminal to the first or second discharge line. | 05-29-2014 |
20150010790 | BATTERY SENSOR DATA TRANSMISSION UNIT AND A METHOD FOR TRANSMITTING BATTERY SENSOR DATA - A battery sensor data transmission unit is described as including a data transmission unit, which is designed to output a sensor signal, which represents a physical variable in or at the battery cell to an evaluation device, using a battery housing wall and/or a wall of a battery cell as the transmission medium. | 01-08-2015 |
20150017498 | BATTERY SENSOR DATA TRANSMISSION UNIT AND A METHOD FOR TRANSMITTING BATTERY SENSOR DATA - A battery sensor data transmission unit is described as including a connection state ascertainment unit for ascertaining a series connection state in which a battery cell is connected in series to one other battery cell with the aid of a power transmission line and/or for determining a bypassing state in which at least one pole of the battery cell is decoupled from at least one other battery cell. Furthermore, the battery sensor data transmission unit includes a data transmission unit designed for outputting a sensor signal, which represents a physical variable in or at the battery cell, in the series connection state to an evaluation device using the power transmission line and/or outputting the sensor signal in the bypassing state to the evaluation device using a battery housing wall as the transmission medium. | 01-15-2015 |