Method and device for permanent disconnection of an electrical circuit with an inductive load by switching two switches
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United States of America Patent
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Sep 13, 2022
Grant Date -
Sep 10, 2020
app pub date -
Feb 4, 2020
filing date -
Feb 5, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
A device for permanently secure disconnection of an electric circuit with high currents at high voltages with an inductive load is provided. The device has a first and a second switch/switch group, connected to each other in series and can be transferred from a closed state into a separated state for disconnecting the electric circuit, wherein none of the switches/switch groups is formed such that it is capable of permanently disconnecting the electric circuit by itself, and a control unit, which actuates the second switch/switch group and which is formed such that the second switch/switch group is transferred from the closed state into the separated state after the first switch/switch group. Further provided is an electric circuit which includes the device and a voltage source, a load resistance and an inductive load. A method using the device is also provided.
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