54 results about "Latching switch" patented technology

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.

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.

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.

Apparatus for a micro-electro-mechanical switch that provides single pole, double throw switching action. The switch has two input lines and two output lines. The switch has a seesaw cantilever arm with contacts at each end that electrically connect the input lines with the output lines. The cantilever arm is latched into position by frictional forces between structures on the cantilever arm and structures on the substrate in which the cantilever arm is disposed. The state of the switch is changed by applying an electrostatic force at one end of the cantilever arm to overcome the mechanical force holding the other end of the cantilever arm in place.

A exercise machine has a pulley for user's flexibility to choose between training at the selected weight plates' full weight, or at the half weight when the pulley is engaged. A latching switch is used for easy selection of going between the full weight and half weight mode. A counter weight block is attached to an end of the cable, to keep the tension of the cable when the exercise machine is used in the full weight mode.

A micro magnetic latching device. The device comprises a substrate having a moveable element supported thereon. The moveable element (cantilever) has a long axis and a magnetic material. The device also has first and second magnets that produce a first magnetic field, which induces a magnetization in the magnetic material. The magnetization is characterized by a magnetization vector pointing in a direction along the long axis of the moveable element, wherein the first magnetic field is approximately perpendicular to a major central portion of the long axis. The device also has a coil that produces a second magnetic field to switch the movable element between two stable states, wherein only temporary application of the second magnetic field is required to change direction of the magnetization vector thereby causing the movable element to switch between the two stable states.

An electronically controlled locking differential includes an electromagnetic coil and a control system adapted to control operation of the differential. The control system has a module adapted to be mounted under a dashboard of a vehicle and a circuit electrically interfacing with the module. The circuit has a latching switch that is electrically connected to first and/or second sources of power and adapted to provide latching power of the differential. A latching component is electrically connected to the latching switch and adapted to provide latching power of the differential. The circuit is disabled when power to the control system is turned off and in “standby” mode when power to the control system is turned on. Upon the latching switch being activated, current flows through the circuit to activate the latching component, and the differential is actuated.

Systems and methods for actuating micro-magnetic latching switches in an array of micro-magnetic latching switches are described. The array of switches is defined by Y rows aligned with a first axis and X columns aligned with a second axis. Each switch in the array of switches is capable of being actuated by a coil. In an aspect, a row of coils is moved along the second axis to be positioned adjacent to a selected one of the Y rows of switches. A sufficient driving current is proved to a selected coil in the row of coils to actuate a selected switch in the selected one of the Y rows of switches. In another aspect, a plurality of first axis drive signals and a plurality of second axis drive signals are generated. These signals drive an array of coils, wherein each coil in the array of coils is positioned adjacent to a corresponding switch in the array of switches. Each first axis drive signal is coupled to coils in a corresponding column of coils in the array of coils. Each second axis drive signal is coupled to coils in a corresponding row of coils in the array of coils. In another aspect, a three-dimensional array of switches is actuated by drive signals that drive a three-dimensional array of coils.

An electronically controlled locking differential includes an electromagnetic coil and a wire harness adapted to logically control operation of the differential and having a circuit. The circuit has a latching switch that is electrically connected to a first source of power and adapted to provide latching power of the differential. A double-pole, double-throw control relay is electrically connected to the latching switch and includes a first switch, a second switch, and a coil. The second switch is adapted to “jump” the latching switch. The circuit is disabled when power to the harness is turned off and in “standby” mode when power to the harness is turned on. Upon the latching switch being activated, current flows from a starting point of the circuit through the circuit to activate the relay, the first switch closes to energize the differential, the second switch closes such that the current “jumps” the latching switch, and the differential is actuated.

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.

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.

This battery-driven electronic device is provided with: a battery that is detachable from a main body; a computer that is disposed in the main body and operates using the power supply voltage from the battery; a self-supporting latching switch that is connected between the battery and the computer and turns the power supply voltage to the computer on and off; and a mounting detection circuit that turns the latching switch to an on state in response to the mounting of the battery.

The invention provides a voltage regulation tap switch and a usage method of the voltage regulation tap switch. According to the invention, in the voltage regulation tap switch, a thyristor is connected to a magnetic latching switch. By means of the voltage regulation tap switch provided with the thyristor, the problem that in the related art, an on-load tap switch is prone to being impacted and damaged is solved. The damage to the thyristor is avoided. Meanwhile, in the voltage regulation switching process, no inrush current is generated, and the operation overvoltage is avoided.