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Patent Agency Ranking
公开(公告)号：US20210344297A1
公开(公告)日：2021-11-04
申请号：US16861887
申请日：2020-04-29
Applicant: BAE Systems Controls Inc.
Inventor： Robert J. Vovos , Peter A. Carruthers , Benjamin T. Webster
Abstract: Passive filters, line replaceable units and a modular power supply are provided. The passive filter comprises an inductor and a diode bridge. The inductor has a first end and a second end. The first end is coupleable to a phase output of an inverter. The diode bridge comprises a first diode and a second diode. The anode of the first diode is coupled to the second end of the inductor and a cathode of the first diode is coupleable to a positive DC bus voltage. The cathode of the second diode is coupled to the second end of the inductor and the anode of the second diode is coupleable to a negative DC bus voltage. The passive filter output is coupleable to cable(s) for an AC electric machine. A reverse recovery charge of the diodes achieves a target DV/DT for an output voltage of the passive filter at operating temperatures.
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公开(公告)号：US11671050B2
公开(公告)日：2023-06-06
申请号：US17736483
申请日：2022-05-04
Applicant: BAE Systems Controls Inc.
Inventor： Robert J. Vovos , Peter A. Carruthers , Benjamin T. Webster
CPC classification number: H02P29/50 , H02J3/01 , H02M1/126 , H02P27/08 , H03H7/0138
Abstract: Passive filters, line replaceable units and a modular power supply are provided. In one example the modular power supply has a DC bus link having a positive line and a negative line with at least one passive filter and an inductor having a first end and a second end, the first end coupleable to a phase output. A diode bridge having at least a first diode and a second diode, with an anode of the first diode coupleable to the second end of the inductor and a cathode of the first diode coupleable to the positive line, wherein a cathode of the second diode is coupleable to the second end of the inductor and an anode of the second diode is coupleable to the negative line, and wherein the first diode and the second diode are each configured to produce a combined reverse recovery charge that achieves a target DV/DT for an output voltage of the at least one passive filter.
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公开(公告)号：US20210341544A1
公开(公告)日：2021-11-04
申请号：US16861375
申请日：2020-04-29
Applicant: BAE Systems Controls Inc.
Inventor： Robert J. Vovos , Peter A. Carruthers , Andrew S. Clark , Arthur P. Lyons , Benjamin T. Webster
Abstract: A fault detection system for a system having a single DC input and a plurality of A/C loads such as an electric or hybrid electric vehicle. A plurality of inverters convert DC to 3-phase A/C and supply A/C power to a corresponding individual A/C load. Each inverter includes a common mode current transformer and a controller. An individual corresponding common mode current transformer is coupled to the 3-phase A/C output of the inverter. An individual corresponding controller is coupled to the output of an individual corresponding common mode current transformer and is coupled to an individual corresponding A/C load. Each controller is configured to detect a fault at the individual corresponding A/C load and in the case of detection of a fault at an individual corresponding A/C load, the corresponding controller disables the A/C load.
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公开(公告)号：US20240313287A1
公开(公告)日：2024-09-19
申请号：US18121229
申请日：2023-03-14
Applicant: BAE Systems Controls Inc.
Inventor： Benjamin T. Webster , Peter J. Arnold , Joshua P. Stewart , Jay R. Johnson , Matthew S. Boecke
IPC: H01M10/613 , H01M10/625 , H01M10/6554
CPC classification number: H01M10/613 , H01M10/625 , H01M10/6554
Abstract: A method includes forming a cold plate including conductive material and having a plurality of openings, and coating the cold plate with dielectric coating. The method further includes placing the cold plate proximal to a metal plate including one or more metals, and exposing the cold plate to moisture and/or water. In an example, a minimum lateral distance between the cold plate and the metal plate is at most 0.5 inch. The method further includes, while the cold plate is exposed to the moisture and/or the water, applying a voltage across the cold plate and the metal plate, and measuring a resultant leakage current through the cold plate. A thickness of the dielectric coating on an edge of an opening of the plurality of openings is at least 0.003 inch.
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公开(公告)号：US20220263452A1
公开(公告)日：2022-08-18
申请号：US17736483
申请日：2022-05-04
Applicant: BAE Systems Controls Inc.
Inventor： Robert J. Vovos , Peter A. Carruthers , Benjamin T. Webster
Abstract: Passive filters, line replaceable units and a modular power supply are provided. In one example the modular power supply has a DC bus link having a positive line and a negative line with at least one passive filter and an inductor having a first end and a second end, the first end coupleable to a phase output. A diode bridge having at least a first diode and a second diode, with an anode of the first diode coupleable to the second end of the inductor and a cathode of the first diode coupleable to the positive line, wherein a cathode of the second diode is coupleable to the second end of the inductor and an anode of the second diode is coupleable to the negative line, and wherein the first diode and the second diode are each configured to produce a combined reverse recovery charge that achieves a target DV/DT for an output voltage of the at least one passive filter.
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