ELTEK AS Patent applications |
Patent application number | Title | Published |
20160006299 | POWER SUPPLY SYSTEM MODULE - A power supply system module that includes a first and second AC terminals, positive and negative DC terminals and a housing. An AC-DC converter is connected to the first and second AC terminals, and a DC-DC converter is connected between the AC-DC converter and an internal DC bus. A protection circuit is connected between the internal DC bus and the positive or negative DC terminal. A control device controls the AC-DC converter and/or the DC-DC converter. The AC-DC converter, the DC-DC converter and the control device are provided inside the housing. The power supply system module also includes a backup battery device that has a backup battery connected to the internal DC bus via a battery management system. The backup battery device is provided inside the housing. | 01-07-2016 |
20150381070 | AC-AC CONVERTER DEVICE - An AC-AC converter device includes first and second AC input terminals and first and second AC output terminals. An input device is connected between an input node, a common node, a positive DC terminal and a negative DC terminal, wherein the input node is connected to the first AC input terminal via a first input inductor. An output device is connected between an output node, the positive DC terminal and the negative DC terminal, wherein the output node is connected to the first AC output terminal via an output inductor. A common device is connected between the common node, the positive DC terminal and the negative DC terminal, where the common node is connected to the second AC input terminal via a common inductor. A control device is provided for controlling the switches of the output device and the common device. | 12-31-2015 |
20150085431 | POWER SUPPLY SYSTEM COMPRISING A POWER CONVERTER UNIT AND A RACK - A power supply system having a power converter unit and a rack. The rack has a shelf and a shelf connection device. The power converter unit has a housing and a unit connection device, where the unit connection device is adapted to be releasably locked to the shelf connection device when the power converter unit is inserted into the shelf. The shelf connection device has a recess, and the unit connection device has a plate spring and an actuating device. A first end of the plate spring is connected to the housing and a second end of the plate spring is supported on or connected to the actuating device. The actuating device is arranged to move the plate spring between a locked position, in which the plate spring is protruding from the housing into the recess, and an open position, in which the plate spring is retracted from the recess. | 03-26-2015 |
20150070950 | AC-DC CONVERTER DEVICE COMPRISING AN OVERVOLTAGE PROTECTION CIRCUIT - An AC-DC converter device includes a first overvoltage protection circuit connected between a first DC output terminal and a first control terminal of a gate pulse controller. The first overvoltage protection circuit is configured to turn off a first switch if the output voltage between the DC output terminals is above a threshold voltage. A galvanic insulation barrier is connected either between the first overvoltage protection circuit and the first control terminal or between the first control terminal and the first switch. | 03-12-2015 |
20150062973 | DC-DC CONVERTER DEVICE - A DC-DC converter device and method for controlling the DC-DC converter device includes controlling gate drivers connected to the respective gate of first and second resonant circuit switches of a resonant circuit, controlling gate drivers connected to the respective gate of first and second rectifier switches of a synchronous rectifier, and detecting whether a shutdown criteria is fulfilled or not. If the shutdown criteria is fulfilled, the method is further includes the step of sending a shutdown signal to a shutdown device. | 03-05-2015 |
20130201725 | RESONANT CIRCUIT AND RESONANT DC/DC CONVERTER - The present disclsure relates to a resonant circuit ( | 08-08-2013 |
20120320638 | RESONANT CIRCUIT AND RESONANT DC/DC CONVERTER - The present disclosure relates to a resonant circuit ( | 12-20-2012 |