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公开(公告)号：US12237108B2
公开(公告)日：2025-02-25
申请号：US17985543
申请日：2022-11-11
Applicant: Smart Wires Inc.
Inventor： Wooyoung Choi , Abdul Rahman , Haris Ejaz
Abstract: A solenoid driver operable to drive a solenoid actuating a high-voltage power switch is disclosed. The solenoid driver includes a first group of semiconductor switches including a first semiconductor switch and a second semiconductor switch in series. This group is connected to a high-voltage supply line by a diode. The solenoid driver further includes a second group of semiconductor switches including a third semiconductor switch and a fourth semiconductor switch in series. This group is connected to the high-voltage supply line by a second diode. The solenoid driver further includes a common connection between the first group of semiconductor switches and the second group of semiconductor switches. A solenoid coil of the solenoid is connected between the first group of semiconductor switches and the second group of semiconductor switches at a junction between the first and second semiconductor switches and a junction between the third and fourth semiconductor switches.
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公开(公告)号：US20240006105A1
公开(公告)日：2024-01-04
申请号：US17985543
申请日：2022-11-11
Applicant: Smart Wires Inc.
Inventor： Wooyoung Choi , Abdul Rahman , Haris Ejaz
Abstract: A solenoid driver operable to drive a solenoid actuating a high-voltage power switch is disclosed. The solenoid driver includes a first group of semiconductor switches including a first semiconductor switch and a second semiconductor switch in series. This group is connected to a high-voltage supply line by a diode. The solenoid driver further includes a second group of semiconductor switches including a third semiconductor switch and a fourth semiconductor switch in series. This group is connected to the high-voltage supply line by a second diode. The solenoid driver further includes a common connection between the first group of semiconductor switches and the second group of semiconductor switches. A solenoid coil of the solenoid is connected between the first group of semiconductor switches and the second group of semiconductor switches at a junction between the first and second semiconductor switches and a junction between the third and fourth semiconductor switches.
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公开(公告)号：US20230420986A1
公开(公告)日：2023-12-28
申请号：US18465789
申请日：2023-09-12
Applicant: Smart Wires Inc.
Inventor： Wooyoung Choi , Adeel Ahmad Khan , Haroon Inam
CPC classification number: H02J13/00034 , G05B13/0255 , H02J3/1835 , H02J3/00 , H02J13/00004 , H02J13/00016 , H02J3/1814 , H02J3/20 , H02J3/06
Abstract: In an impedance injection module in which multiple converter units are placed in series to realize a high level of impedance injection, switches, preferably vacuum interrupters, are connected to short the input and the output terminals of each individual unit. Unlike the fault-protecting switch across the entire module, these switches at the individual converter unit level serve several purposes, overload and surge protection of a unit, insertion loss minimization of an idle unit when the required impedance injection is small, and electrically removing a defective injection unit from the power flow to increase the overall reliability of the impedance injection module in the face of the failure of one unit or a few units. For more rapid response, particularly in response to faults, the vacuum interrupter at the unit level may be accompanied by an SCR switch in parallel with it.
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