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公开(公告)号：US11921531B2
公开(公告)日：2024-03-05
申请号：US17173527
申请日：2021-02-11
摘要： A power supply system includes a direct current (DC) power source and a protection circuit having input and an input and an output, the input is operably coupled to the DC power so that, in operation, it receives DC power from the DC power source. The protection circuit includes a first path and a second path that both electrically couple the input to the output, and current passes, in operation, primarily through the first path when a voltage at the input is greater than a threshold voltage related to a Zener diode in the second path and primarily through the second path when the voltage at the input is below the threshold voltage. The system also includes a voltage regulator having an input coupled to the output of the protection circuit.
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公开(公告)号：US20220200439A1
公开(公告)日：2022-06-23
申请号：US17173527
申请日：2021-02-11
摘要： A power supply system includes a direct current (DC) power source and a protection circuit having input and an input and an output, the input is operably coupled to the DC power so that, in operation, it receives DC power from the DC power source. The protection circuit includes a first path and a second path that both electrically couple the input to the output, and current passes, in operation, primarily through the first path when a voltage at the input is greater than a threshold voltage related to a Zener diode in the second path and primarily through the second path when the voltage at the input is below the threshold voltage. The system also includes a voltage regulator having an input coupled to the output of the protection circuit.
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公开(公告)号：US12007419B2
公开(公告)日：2024-06-11
申请号：US17235377
申请日：2021-04-20
CPC分类号： G01R19/2513 , H03K17/18
摘要： A power quality monitor (PQM) module includes a solid-state semi-conductor switch having a voltage input, two signal inputs and two voltage outputs. A voltage input line is electrically connected to the voltage input. A PQM signal input line is operatively connected to at least one of the two signal inputs. A voltage output line is electrically connected to one of the two voltage outputs to provide power to a load. A method of controlling a GCB includes opening a solid-state semi-conductor switch when a PQM signal is powered at a first logic voltage. The method includes closing the solid-state semi-conductor switch when a PQM signal is powered at a second logic voltage lower than the first logic voltage to allow a voltage from a GCU to go to the GCB.
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公开(公告)号：US20210344197A1
公开(公告)日：2021-11-04
申请号：US17235377
申请日：2021-04-20
摘要： A power quality monitor (PQM) module includes a solid-state semi-conductor switch having a voltage input, two signal inputs and two voltage outputs. A voltage input line is electrically connected to the voltage input. A PQM signal input line is operatively connected to at least one of the two signal inputs. A voltage output line is electrically connected to one of the two voltage outputs to provide power to a load. A method of controlling a GCB includes opening a solid-state semi-conductor switch when a PQM signal is powered at a first logic voltage. The method includes closing the solid-state semi-conductor switch when a PQM signal is powered at a second logic voltage lower than the first logic voltage to allow a voltage from a GCU to go to the GCB.
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公开(公告)号：US20210167591A1
公开(公告)日：2021-06-03
申请号：US16750033
申请日：2020-01-23
发明人： Hemanth Kumar Pennam
摘要： Provided are embodiments for a circuit for detecting discrete inputs. The circuit includes a power source, a diode set coupled to the power source, a line replaceable unit (LRU) circuit, and a logic detection and processing circuit that is operably connected to the first LRU, wherein the logic detection and processing circuit is configured to detect a state of the LRU based on a detected voltage. Also, provided are embodiments of a method for operating a logic detection and processing circuit.
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公开(公告)号：US11677234B2
公开(公告)日：2023-06-13
申请号：US17502088
申请日：2021-10-15
CPC分类号： H02H9/025 , B64F5/60 , H02H1/0007 , H02H9/045 , H02J7/00304 , H03K17/0822
摘要： Provided are embodiments for a system for performing input power detection. The system includes a first input for a first power source, a second input for a second power source, and a controller that is operably coupled to the first power source and the second power source. The system also includes a first path connecting a first circuit to the first power supply, wherein the first path comprises a first field effect transistor (FET) that is operated to inhibit leakage current flow to the first circuit, and a second path connecting a second circuit to the second power supply, wherein the second path comprises a second FET that is operated to inhibit leakage current flow to the second circuit. Also provided are embodiments for a method for performing input power detection.
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公开(公告)号：US20230058478A1
公开(公告)日：2023-02-23
申请号：US17502088
申请日：2021-10-15
摘要： Provided are embodiments for a system for performing input power detection. The system includes a first input for a first power source, a second input for a second power source, and a controller that is operably coupled to the first power source and the second power source. The system also includes a first path connecting a first circuit to the first power supply, wherein the first path comprises a first field effect transistor (FET) that is operated to inhibit leakage current flow to the first circuit, and a second path connecting a second circuit to the second power supply, wherein the second path comprises a second FET that is operated to inhibit leakage current flow to the second circuit. Also provided are embodiments for a method for performing input power detection.
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公开(公告)号：US20220320853A1
公开(公告)日：2022-10-06
申请号：US17712056
申请日：2022-04-01
摘要： A power distribution circuit includes a power input in electrical communication with a power input line, a switching circuit electrically connected to the power input line, and an overcurrent protection circuit electrically connected to the power input line. The overcurrent protection circuit includes a discrete silicon controlled rectifier (SCR) circuit, and a pulse qualifier configured and adapted to drive the discrete SCR circuit. A method for controlling a power distribution circuit includes detecting an ON status of at least a switching circuit. A semi-conductor control signal line connects the semi-conductor switch and the voltage command circuit. The method includes detecting an overcurrent status of the switching circuit with an overcurrent detection circuit. The method includes clamping voltage on the semi-conductor control signal line to cause the semi-conductor switch to be turned off.
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