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US 11,942,298 B2Granted
Switching device
AssigneeTDK Electronics Co., Ltd.
InventorsArmin Grunack, Torsten Klinger
Life of this patent
Estimating the term…
Abstract
In an embodiment, a switching device includes at least one stationary contact, a movable contact, an armature, a permanent magnet and a magnetically-operated switch, wherein the movable contact is movable by the armature, wherein the permanent magnet is attached to the armature, and wherein the magnetically-operated switch is a Hall switch.
Claims19
A switching device comprising:
- at least one stationary contact;
- a movable contact;
- an armature;
- a permanent magnet;
- and
- a magnetically-operated switch,
- wherein the movable contact is movable by the armature,
- wherein the permanent magnet is attached to the armature,
- wherein the magnetically-operated switch is a Hall switch,
- wherein the magnetically-operated switch is connected to a signal processing device,
- wherein the signal processing device comprises a measuring resistor directly connected in series to the magnetically-operated switch, and
- wherein the signal processing device is configured to detect a state of the magnetically-operated switch.
9 more elements
A switching device comprising:
- a movable contact being movable by an armature;
- a permanent magnet attached to the armature;
- a magnetically-operated switch being a Hall switch;
- and
- a signal processing device comprising:
- a measuring resistor directly connected in series to the magnetically-operated switch;
- a comparator configured to compare a voltage drop across the measuring resistor with a reference voltage, the reference voltage being predetermined by a Zener diode;
- and
- an electronic switch having a control input connected to an output of the comparator,
- wherein the magnetically-operated switch, the Zener diode and the comparator are connected to a common voltage supply, and
- wherein the control input of the electronic switch is connected to the output of the comparator via a voltage divider.
8 more elements
A switching device comprising:
- a stationary contact and a movable contact;
- and
- a permanent magnet and a magnetically-operated switch,
- wherein the magnetically-operated switch has a first state and a second state and is switchable between the first and second states as a result of a distance of the permanent magnet to the magnetically-operated switch,
- wherein the magnetically-operated switch is connected to a signal processing device, the signal processing device being configured to detect a state of the magnetically-operated switch,
- wherein the signal processing device comprises a measuring resistor connected in series to the magnetically-operated switch, and
- wherein the measuring resistor is directly connected to the magnetically-operated switch.
4 more elements
Dependencies are inferred from the claim text.