Relay drive with power supply economizer
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United States of America
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app pub date -
Jan 13, 2020
filing date -
Jan 13, 2020
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Abstract
Provided are embodiments for a circuit for a relay drive with a power supply economizer. The circuit includes a relay having a relay coil and a relay contact. The circuit also includes a power source to generate power for a coil drive voltage to operate the relay, and a controller configured to provide a command signal to operate the circuit in a plurality of modes. The circuit includes a first gate drive coupled to a first switch, wherein the first switch connects the relay coil to the circuit, and a second gate drive coupled to a second switch, wherein the second switch changes an effective resistance of a resistor network of the circuit to modify the coil drive voltage. Also provided are embodiments for a method for operating a circuit including relay drive with a power supply economizer.
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