-
公开(公告)号:US20230090594A1
公开(公告)日:2023-03-23
申请号:US17994938
申请日:2022-11-28
Inventor: Robert S. Balog , Ibrahim Karaman , Moustafa Tawfik Omar Raslan
Abstract: A shape-memory alloy actuated switch (SMAAS) is provided that enables the stable switching of two separate circuits. The presently disclosed SMAAS includes a substrate, one or more electrical contacts attached to the substrate for connecting to load circuits, and one or more electrically conductive elements for selectively connecting the one or more electrical contacts. The disclosed SMAAS also includes one or more shape-memory alloy actuators attached to the substrate. The one or more shape-memory alloy actuators are configured to move the one or more electrically conductive elements. The shape-memory alloy actuators are self-heated by passing current through the shape-memory alloy material. The disclosed SMAAS may also include electrical contacts to connect an external control current to the shape-memory alloy material. In some examples, the provided SMAAS includes one or more retention mechanisms to prevent movement of the electrically conductive elements after actuation.
-
公开(公告)号:US11929219B2
公开(公告)日:2024-03-12
申请号:US17994938
申请日:2022-11-28
Inventor: Robert S. Balog , Ibrahim Karaman , Moustafa Tawfik Omar Raslan
CPC classification number: H01H37/323 , F03G7/0614 , H01H1/06 , H01H1/56 , H01H3/38
Abstract: A shape-memory alloy actuated switch (SMAAS) is provided that enables the stable switching of two separate circuits. The presently disclosed SMAAS includes a substrate, one or more electrical contacts attached to the substrate for connecting to load circuits, and one or more electrically conductive elements for selectively connecting the one or more electrical contacts. The disclosed SMAAS also includes one or more shape-memory alloy actuators attached to the substrate. The one or more shape-memory alloy actuators are configured to move the one or more electrically conductive elements. The shape-memory alloy actuators are self-heated by passing current through the shape-memory alloy material. The disclosed SMAAS may also include electrical contacts to connect an external control current to the shape-memory alloy material. In some examples, the provided SMAAS includes one or more retention mechanisms to prevent movement of the electrically conductive elements after actuation.
-
3.
公开(公告)号:US20230147308A1
公开(公告)日:2023-05-11
申请号:US17920641
申请日:2021-04-23
Inventor: Robert S. Balog , Mohammad SHADMAND , Morcos METRY , Wesam ROHOUMA , Miroslav BEGOVIC , Aaqib PEERZADA
CPC classification number: H02J3/1864 , H02J3/01 , H02J3/381 , H02M1/0054 , H02M5/2932 , H02M3/33523 , H02M1/126 , H02J2300/26
Abstract: A power quality compensation system and a power quality compensation method are provided. The power quality compensation apparatus includes an input filter, a power electronic converter, a controller configured to control the power electronic converter, and a plurality of inductors connected to the power electronic converter. The power quality compensation method includes receiving signals from one or more sensors configured to detect voltage and current from an input side and an output side of the power quality compensation system, calculating reference signals, and using model predictive control to track the reference signals.
-
公开(公告)号:US11515101B2
公开(公告)日:2022-11-29
申请号:US16942381
申请日:2020-07-29
Inventor: Robert S. Balog , Ibrahim Karaman , Moustafa Tawfik Omar Raslan
Abstract: A shape-memory alloy actuated switch (SMAAS) is provided that enables the stable switching of two separate circuits. The presently disclosed SMAAS includes a substrate, one or more electrical contacts attached to the substrate for connecting to load circuits, and one or more electrically conductive elements for selectively connecting the one or more electrical contacts. The disclosed SMAAS also includes one or more shape-memory alloy actuators attached to the substrate. The one or more shape-memory alloy actuators are configured to move the one or more electrically conductive elements. The shape-memory alloy actuators are self-heated by passing current through the shape-memory alloy material. The disclosed SMAAS may also include electrical contacts to connect an external control current to the shape-memory alloy material. In some examples, the provided SMAAS includes one or more retention mechanisms to prevent movement of the electrically conductive elements after actuation.
-
公开(公告)号:US20210035748A1
公开(公告)日:2021-02-04
申请号:US16942381
申请日:2020-07-29
Inventor: Robert S. Balog , Ibrahim Karaman , Moustafa Tawfik Omar Raslan
Abstract: A shape-memory alloy actuated switch (SMAAS) is provided that enables the stable switching of two separate circuits. The presently disclosed SMAAS includes a substrate, one or more electrical contacts attached to the substrate for connecting to load circuits, and one or more electrically conductive elements for selectively connecting the one or more electrical contacts. The disclosed SMAAS also includes one or more shape-memory alloy actuators attached to the substrate. The one or more shape-memory alloy actuators are configured to move the one or more electrically conductive elements. The shape-memory alloy actuators are self-heated by passing current through the shape-memory alloy material. The disclosed SMAAS may also include electrical contacts to connect an external control current to the shape-memory alloy material. In some examples, the provided SMAAS includes one or more retention mechanisms to prevent movement of the electrically conductive elements after actuation.
-
-
-
-