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54 results about "Latching switch" patented technology

A latching switch is a switch that maintains its state after being activated. A push-to-make, push-to-break switch would therefore be a latching switch – each time you actuate it, whichever state the switch is left in will persist until the switch is actuated again.

Micromagnetic latching switch packaging

Packages for a micromachined magnetic latching switch, and methods for assembling the packages are described. In one aspect, a substrate is defined by opposing first and second surfaces. A micromagnetic switch integrated circuit (IC) chip is mounted to the first surface. A contact pad on the chip is coupled to a trace on the first surface. A permanent magnet is positioned closely adjacent to the chip. A cap is attached to the first surface. An inner surface of the cap forms an enclosure to enclose the chip on the first surface. The chip can be alternatively mounted to the inner surface of the cap. The chip can be oriented in a standard or flip-chip fashion. In another aspect, a moveable micro-machined cantilever is supported by a surface of a substrate. A cap is attached to the surface. An inner surface of the cap forms an enclosure that encloses the cantilever on the surface of the substrate. A permanent magnet is positioned closely adjacent to the cantilever. An electromagnet is attached to the inner surface or an outer surface of the cap.
Owner:SCHNEIDER ELECTRIC IND SAS

Circuit for illuminating multiple light emitting devices

A single drive circuit is configured to drive disparate current loads of first and second combinations of compact light emitting devices with respective regulated constant currents. Standard push ON, push OFF latching switches provide independent control of the two lighting loads wherein each switch operates in three states including momentary ON, continuous ON, and OFF. The circuit is readily adapted to providing continuous or pulsed drive to the lighting arrays. Circuits for dimming control, strobe control, and a low battery indicator are also described.
Owner:BAYCO PRODS

Automatic battery disconnect system

A safety battery disconnect system for disconnecting a vehicle battery from the electrical system of the vehicle when an impact exceeding a predetermined magnitude is detected while maintaining electrical power input from the battery to selected portions of the vehicle electrical system. The system includes a shock sensor connected to a latching switch interposed between the battery and the vehicle fused electrical input system and is preferably a unitary unit mounted on or in close proximity to the battery.
Owner:ZDZIECH PETER M +1

Micro magnetic non-latching switches and methods of making same

A micro magnetic switch includes a reference plane and a magnet located proximate to a supporting structure. The magnet produces a first magnetic field with uniformly spaced field lines approximately orthogonal to the reference plane, symmetrically spaced about a central axis, or non-uniformly spaced fields approximately orthogonal to the reference plane. The switch also includes a cantilever supported by the support structure. The cantilever has an axis of rotation lying in the reference plane and has magnetic material that makes the cantilever sensitive to the first magnetic field, such that the cantilever is configured to rotate about the axis of rotation between first and second states. The switch further includes a conductor located proximate to the supporting structure and the cantilever. The conductor is configured to conduct a current. The current produces a second magnetic field having a component approximately parallel to the reference plane and approximately perpendicular to the rotational axis of the cantilever, which causes the cantilever to switch between the first and second states. The switch still further includes a stopping device located proximate to the supporting structure. The stopping device is operable to stop the cantilever from rotating about the axis of symmetry beyond a point at which a longitudinal axis of the cantilever is approximately parallel to a longitudinal axis of the magnet.
Owner:SCHNEIDER ELECTRIC IND SAS

Alternating-current zero-crossing action non-arc switch and working method thereof

The invention relates to an alternating-current zero-crossing action non-arc switch and a working method thereof. The alternating-current zero-crossing action non-arc switch comprises two neodymium-iron-boron strong magnets, an electromagnet, a solenoid and a main contact, wherein the two neodymium-iron-boron strong magnets comprise a first neodymium-iron-boron strong magnet and a second neodymium-iron-boron strong magnet; the two neodymium-iron-boron strong magnets and the electromagnet are arranged in the solenoid, the electromagnet is located between the two neodymium-iron-boron strong magnets, the two neodymium-iron-boron strong magnets with opposite polarities are used as pistons and driven by the electromagnet, and a push-pull piston type high-speed magnetic latching switch driven by the electromagnet is formed. The electromagnet is driven by the current of the solenoid, on and off of the switch are controlled by changing the current direction of the solenoid, a basis is provided for calculation of zero-crossing action, in order to achieve accurate zero-crossing action, the switch is further provided with a voltage zero-crossing detector and a current zero-crossing detector, and calculation data are provided for zero-crossing driving, so that the switch is connected during voltage zero-crossing and disconnected during current zero-crossing, thereby realizing alternating-current arc-free operation.
Owner:杨帆

Low-g micromechanical acceleration latching switch

The invention discloses a low-g micromechanical acceleration latching switch. The low-g micromechanical acceleration latching switch comprises an insulation substrate, a detection mass block, a plurality of anchor points, a plurality of contacts, a plurality of contact support beams, a plurality of detection mass block support beams and a plurality of overload protection structures; and the anchor points, the contacts, the contact support beams, the detection mass block support beams and the overload protection structures are symmetrically distributed relative to the X axis and the Y axis of the insulation substrate. The movable contacts of the micromechanical switch adopt hemispherical and wedge-shaped composite structures and form line contacts with side contacts, and energy loss in the motion process is reduced; the movable contacts form face contacts with the induction contacts, contact resistance values are reduced, and contact reliability is improved; the detection mass block, the flexible beams, the contacts and the anchor points are distributed in a completely axisymmetric manner, and bidirectional latching in plus or minus Y directions can be achieved; the detection mass block support beams are symmetrically distributed on two sides of the detection mass block, the structural layout is reasonable, and low-g latching is easy to achieve; and, through adjustments of gaps between the detection mass block, the flexible beams and the contacts, a latching threshold can be convenient to adjust, and the threshold scope is wide.
Owner:CHONGQING UNIV

Electric leakage detection and protection circuit

The invention discloses an electric leakage detection and protection circuit which is characterized by comprising an end-of-life detection switch, controlled by an electromagnetic latching mechanism, and a latching switch. An anode of a thyristor is connected with a live line of a power input end through the latching switch and a trip coil, and an iron core is embedded in the trip coil; a cathode of the thyristor is connected with a zero line of the power input end; the end-of-life detection switch and a current-limiting resistor are serially connected to form a simulated leakage current generating circuit for completing an end-of-life detection function; and one end of the simulated leakage current generating circuit is connected with the zero line of the power input end passing through an induction coil and a self-excitation coil, and the other end is connected with the live line of the power input end through the trip coil. When a reset button is tripped, the end-of-life detection switch is closed, and the latching switch is off; when the reset button is reset, the end-of-life detection switch is off, and the latching switch is on; and when the reset button is pressed, the latching switch is on, and the end-of-life detection switch is off.
Owner:黄华道

Hidden dryer door switch

A latch switch assembly for an appliance or the like provides spring-loaded jaws to retain a latch strike when a door of the appliance is closed and a switch operator positioned behind spring-loaded jaws be activated by the latch strike when it is received.
Owner:ILLINOIS TOOL WORKS INC

Micro magnetic non-latching switches and methods of making same

A micro magnetic switch includes a reference plane and a magnet located proximate to a supporting structure. The magnet produces a first magnetic field with uniformly spaced field lines approximately orthogonal to the reference plane, symmetrically spaced about a central axis, or non-uniformly spaced fields approximately orthogonal to the reference plane. The switch also includes a cantilever supported by the support structure. The cantilever has an axis of rotation lying in the reference plane and has magnetic material that makes the cantilever sensitive to the first magnetic field, such that the cantilever is configured to rotate about the axis of rotation between first and second states. The switch further includes a conductor located proximate to the supporting structure and the cantilever. The conductor is configured to conduct a current. The current produces a second magnetic field having a component approximately parallel to the reference plane and approximately perpendicular to the rotational axis of the cantilever, which causes the cantilever to switch between the first and second states. The switch still further includes a stopping device located proximate to the supporting structure. The stopping device is operable to stop the cantilever from rotating about the axis of symmetry beyond a point at which a longitudinal axis of the cantilever is approximately parallel to a longitudinal axis of the magnet.
Owner:SCHNEIDER ELECTRIC IND SAS
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