Condition monitoring device having a power switch between an integrated energy harvester and a method for operating said power switch
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United States of America Patent
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Feb 14, 2023
Grant Date -
Dec 17, 2020
app pub date -
Apr 6, 2020
filing date -
Jun 11, 2019
priority date (Note) -
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status (Latency Note)
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Abstract
Condition monitoring device including a condition monitoring sensor configured to acquire vibration signals produced by the system and an integrated power supply having an energy harvester for providing power energy to the condition monitoring sensor and having an electromagnetic coil and a permanent magnet. The integrated power supply includes a system power switch between the energy harvester and the condition monitoring sensor and configured to be switched between at least a first high impedance position providing power energy of the energy harvester to the sensor and a second low impedance position where no power is transmitted to the sensor. Also, a system for restricting movement of the energy harvester configured to be connected across the electromagnetic coil in the low impedance passive position of the system power switch.
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