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US 9,852,867 B2Granted
Current sensor
AssigneeFujitsu Limited
InventorsOsamu Tsuboi, Hiromitsu Soneda
Life of this patent
Estimating the term…
Abstract
A downsized current sensor with a switch function is disclosed. The current sensor includes: a magnetic circuit to converge a magnetic flux generated from an electric circuit at a magnetic sensor; a switch to open and close the electric circuit in a way that operates together with a movable magnetic body configuring a part of the magnetic circuit; and a magnetizing coil to generate magnetic force enabling the movable magnetic body to be attracted to a fixed magnetic body configuring a part of the magnetic circuit.
Claims8
A current sensor comprising:
- a magnetic circuit to converge a magnetic flux generated from an electric circuit on a magnetic sensor;
- a switch to open and close the electric circuit in a way that operates together with a movable magnetic body configuring a part of the magnetic circuit;
- and
- a magnetizing coil to generate magnetic force enabling the movable magnetic body to be attracted to a fixed magnetic body configuring a part of the magnetic circuit,
- wherein the magnetizing coil is connected to a control unit,
- the magnetic circuit surrounds the electric circuit, and
- the magnetic sensor is interposed between the movable magnetic body and the fixed magnetic body.
4 more elements
Dependencies are inferred from the claim text.