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公开(公告)号：US20210400847A1
公开(公告)日：2021-12-23
申请号：US17353419
申请日：2021-06-21
Applicant: ELTEK AS
Inventor： ERIK MYHRE , Håkon HAFNOR , KJETIL HAGEN , JAN TORE BRASTAD , CHRISTINE AMER
Abstract: The present disclosure relates to a power supply system (1) including a main unit (10) including a protective main housing (11) and a distribution circuit (20) disposed in the protective main housing (11); a first module unit (30a) including a first protective module housing (31a) and a first electric module (40a) disposed in the first protective module housing (31a). The system also includes a passive cooling system (70) for cooling of the main unit (10) and the first module unit (30a). A first protective connection system (CS1) and a second protective connection system (CS2) is also a part of the system, wherein the first protective connection system (CS1) is configured to provide a releasable electrical and mechanical connection between the main unit (10) and the first module unit (30a). The passive cooling system (70) includes cooling fins (71) disposed on an outer surface of the first protective module housing (31a).
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公开(公告)号：US20190089260A1
公开(公告)日：2019-03-21
申请号：US16072704
申请日：2017-02-03
Applicant: Eltek AS
Inventor： Kjetil Boysen
CPC classification number: H02M3/33584 , H02M1/4241 , H02M3/33523 , H02M7/48 , H02M2001/0048 , H02M2001/0058 , H02M2007/4818 , Y02B70/1433 , Y02B70/1441 , Y02B70/1491
Abstract: A bi-directional DC-DC resonant converter with bi-directional voltage control includes: primary converter terminals defining a primary voltage; secondary converter terminals defining a secondary voltage; a transformer device having primary transformer terminals and secondary transformer terminals; a resonant tank device having first and second primary resonant tank terminals defining a primary resonant tank voltage and first and second secondary resonant tank terminals defining a secondary resonant tank voltage, wherein the primary tank terminals are connected to the secondary transformer terminals; a primary switching circuit connected between the primary converter terminals and the primary transformer terminals; and a secondary switching circuit connected between the secondary resonant tank terminals and the secondary converter terminals.
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公开(公告)号：US11627655B2
公开(公告)日：2023-04-11
申请号：US17364728
申请日：2021-06-30
Applicant: ELTEK AS
Inventor： Christine Amer , Erik Myhre , Håkon Hafnor , Jan Tore Brastad , Kjetil Hagen
Abstract: The present disclosure relates to an electric circuit system. The system includes a housing, a printed circuit board mounted within the housing, an electric component conductively mounted to the printed circuit board, and a cooling system for transferring heat away from of the electric component. The printed circuit board is compartmentalizing the inside of the housing into a first compartment and a second compartment, and the electric component is situated in the first compartment. The cooling system includes at least one first heat transferring element located adjacent to the electric component. The at least one first heat transferring element is secured to the housing surrounding the second compartment capable of forming a heat flowing path defined to transfer heat from the electric component to the housing via the at least one first heat transferring element.
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公开(公告)号：USD975643S1
公开(公告)日：2023-01-17
申请号：US35512386
申请日：2021-02-19
Applicant: Eltek AS
Designer： Christine Amer
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公开(公告)号：US20220022312A1
公开(公告)日：2022-01-20
申请号：US17364728
申请日：2021-06-30
Applicant: ELTEK AS
Inventor： CHRISTINE AMER , ERIC MYHRE , Håkon HAFNOR , JAN TORE BRASTAD , KJETIL HAGEN
Abstract: The present disclosure relates to an electric circuit system. The system includes a housing, a printed circuit board mounted within the housing, an electric component conductively mounted to the printed circuit board, and a cooling system for transferring heat away from of the electric component. The printed circuit board is compartmentalizing the inside of the housing into a first compartment and a second compartment, and the electric component is situated in the first compartment. The cooling system includes at least one first heat transferring element located adjacent to the electric component. The at least one first heat transferring element is secured to the housing surrounding the second compartment capable of forming a heat flowing path defined to transfer heat from the electric component to the housing via the at least one first heat transferring element.
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Patent Agency Ranking
公开(公告)号：US20210190875A1
公开(公告)日：2021-06-24
申请号：US16757754
申请日：2018-10-18
Applicant: ELTEK AS
Inventor： HAKON ANDERSEN
IPC: G01R31/3842 , H02J7/00
Abstract: A method of testing a rechargeable battery (4) connected to a DC bus (5) of a converter (11) of a power supply system (10) including a control system (12) for controlling power transfer between a power source (2), the rechargeable battery (4), and a load (3) connected to the DC bus (5) is provided. The method includes: setting a test discharge current (I4d) and a test end voltage (Vend) for the rechargeable battery (4) to be used during the test; at a first point in time (T0), starting a test run measuring a current (I4) from the rechargeable battery (4) and a voltage (V4) over the rechargeable battery (4); at a second point in time (Tend), when the V4 becomes equal to the Vend, terminating the test run; and registering the time period elapsed between T0 and Tend as a measure of the status of the rechargeable battery (4).
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公开(公告)号：US10396560B2
公开(公告)日：2019-08-27
申请号：US15302100
申请日：2015-04-08
Applicant: Eltek AS
Inventor： Johan Svedendahl , Nils Bäckman , Sylvain Chatelet , Roberto Rojas
Abstract: An electric multimode power converter module includes an AC/DC converter, including a first AC port; a DC/AC converter, including a second AC port; a DC/DC converter, including a DC port; a controller; and a communication bus interconnecting the converters. The controller includes a hardware configuration port and sets the module in the following states, based on the value read from the configuration port: a first state in which the module transfers power between the first AC port and the DC port, a second state in which the module transfers power between the DC port and the second AC port, and a third state in which the module transfers power between the AC ports and the DC port. A power supply system includes a shelf device including at least one compartment, and an electric multimode power converter module as mentioned above is inserted in the at least one compartment.
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公开(公告)号：US09692315B2
公开(公告)日：2017-06-27
申请号：US14762708
申请日：2014-01-07
Applicant: Eltek AS
Inventor： Nils Bäckman , Roberto Rojas
CPC classification number: H02M5/4585 , H02J9/062 , H02M7/217
Abstract: 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.
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公开(公告)号：US20170117709A1
公开(公告)日：2017-04-27
申请号：US15302100
申请日：2015-04-08
Applicant: ELTEK AS
Inventor： Johan Svedendahl , Nils Bäckman , Sylvain Chatelet , Roberto Rojas
CPC classification number: H02J3/32 , H01H15/005 , H02J9/061 , H02M3/04 , H02M5/42 , H02M7/68 , H05K5/00
Abstract: An electric multimode power converter module includes an AC/DC converter, including a first AC port; a DC/AC converter, including a second AC port; a DC/DC converter, including a DC port; a controller; and a communication bus interconnecting the converters. The controller includes a hardware configuration port and sets the module in the following states, based on the value read from the configuration port: a first state in which the module transfers power between the first AC port and the DC port, a second state in which the module transfers power between the DC port and the second AC port, and a third state in which the module transfers power between the AC ports and the DC port. A power supply system includes a shelf device including at least one compartment, and an electric multimode power converter module as mentioned above is inserted in the at least one compartment.
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公开(公告)号：US11249140B2
公开(公告)日：2022-02-15
申请号：US16757754
申请日：2018-10-18
Applicant: ELTEK AS
Inventor： Hakon Andersen
IPC: H01M10/44 , H01M10/46 , G01R31/3842 , H02J7/00
Abstract: A method of testing a rechargeable battery (4) connected to a DC bus (5) of a converter (11) of a power supply system (10) including a control system (12) for controlling power transfer between a power source (2), the rechargeable battery (4), and a load (3) connected to the DC bus (5) is provided. The method includes: setting a test discharge current (I4d) and a test end voltage (Vend) for the rechargeable battery (4) to be used during the test; at a first point in time (T0), starting a test run measuring a current (I4) from the rechargeable battery (4) and a voltage (V4) over the rechargeable battery (4); at a second point in time (Tend), when the V4 becomes equal to the Vend, terminating the test run; and registering the time period elapsed between T0 and Tend as a measure of the status of the rechargeable battery (4).
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