Electric pump
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United States of America Patent
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Oct 4, 2022
Grant Date -
Jun 25, 2020
app pub date -
Dec 23, 2019
filing date -
Dec 25, 2018
priority date (Note) -
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status (Latency Note)
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Abstract
An electric pump includes a pump unit, a motor and a controller. The pump unit is configured to pump fluid by a rotating operation. The motor is a brushless direct-current motor and configured to rotationally drive the pump unit. The controller is configured to control a current to be supplied to the motor. The controller is configured to switch between voltage control for controlling the current to be supplied to the motor based on a target voltage and current control for controlling the current to be supplied to the motor based on a target current.
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