CONTACTOR, AN INTEGRATED CIRCUIT, A METHOD OF INTERRUPTING A CURRENT FLOW
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United States of America Patent
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Issued Date -
May 30, 2024
app pub date -
Feb 5, 2024
filing date -
Mar 1, 2021
priority date (Note) -
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Abstract
A contactor includes: a first and second power terminal; a sub-circuit connected between this first and second power terminal and comprising the following three elements connected in series: an electrical conductor portion, a primary switch, and a fuse. The primary switch has a movable part driven by an actuator. The contactor further has a magnetic sensor for measuring a primary current flowing through the electrical conductor portion, and a controller connected to the magnetic sensor and to the actuator. The controller has a communication port for receiving commands. The contactor can detect whether the primary switch is actually open. The controller is configured for: (i) receiving a command to open the switch; (ii) operating the actuator, (iii) detecting if the primary switch is actually open; and (iv) blowing the fuse if the switch is not open.
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