A device includes at least one stress-engineered portion and at least one second portion. The stress-engineered portion includes at least one tensile stress layer having a residual tensile stress and at least one compressive stress layer having a residual compressive stress. The tensile stress layer and the compressive stress layer are mechanically coupled such that the at least one tensile stress layer and the at least one compressive stress layer are self-equilibrating. The stress-engineered portion is configured to fracture due to propagating cracks generated in response to energy applied to the stress-engineered portion. Fracture of the stress-engineered portion changes functionality of the device from a first function to a second function, different from the first function.

An electrical switch for switching an electric current is disclosed. The electrical switch includes an electronic trip unit, embodied in a bipartite fashion. A first part of the trip unit is fixedly connected to the electrical switch and includes protection functions of the electrical switch. A second part of the trip unit is embodied mountably and detachably on the electrical switch and defines the protection functions enabled for the customer.

A device includes at least one stress-engineered portion and at least one second portion. The stress-engineered portion includes at least one tensile stress layer having a residual tensile stress and at least one compressive stress layer having a residual compressive stress. The tensile stress layer and the compressive stress layer are mechanically coupled such that the at least one tensile stress layer and the at least one compressive stress layer are self-equilibrating. The stress-engineered portion is configured to fracture due to propagating cracks generated in response to energy applied to the stress-engineered portion. Fracture of the stress-engineered portion changes functionality of the device from a first function to a second function, different from the first function.

Disclosed is a switch device that includes or is formed by a switchgear. Two sensors of the switchgear monitor two measured values and a switch of the switchgear is switched depending on these measured values. The adjustable thresholds for the measured values are displayed on a digital display integrated in the switchgear or arranged on an external input device. Both thresholds are adjusted digitally via the input device. The input device can be a commercially available smartphone with an app or a laptop.

The present invention relates to a system and a method for independently controlling a relay using bimetal which allow bimetal to operate based on a signal output from a micro controller unit when current of a predetermined threshold or more flows on a circuit to allow current which flows between a battery and the relay to flow bypassing the bimetal to independently control the relay regardless of whether a circuit pattern is abnormal.

The present invention relates to a system and a method for independently controlling a relay using bimetal which allow bimetal to operate based on a signal output from a micro controller unit when current of a predetermined threshold or more flows on a circuit to allow current which flows between a battery and the relay to flow bypassing the bimetal to independently control the relay regardless of whether a circuit pattern is abnormal.

A transient electronic device includes electronic elements (e.g., an SOI- or chip-based IC) and a trigger mechanism disposed on a frangible glass substrate. The trigger mechanism includes a switch that initiates a large trigger current through a self-limiting resistive element in response to a received trigger signal. The self-limiting resistive element includes a resistor portion that generates heat in response to the trigger current, thereby rapidly increasing the temperature of a localized (small) region of the frangible glass substrate, and a current limiting portion (e.g., a fuse) that self-limits (terminates) the trigger current after a predetermined amount of time, causing the localized region to rapidly cool down. The frangible glass substrate is engineered such that a stress profile produced by the rapid heating/cooling of the localized region generates an initial fracture force that subsequently propagates throughout the glass substrate, whereby sufficient potential energy is released to powderize the electronic elements.

Disclosed is a switch device that includes or is formed by a switchgear. Two sensors of the switchgear monitor two measured values and a switch of the switchgear is switched depending on these measured values. The adjustable thresholds for the measured values are displayed on a digital display integrated in the switchgear or arranged on an external input device. Both thresholds are adjusted digitally via the input device. The input device can be a commercially available smartphone with an app or a laptop.

A transient electronic device includes electronic elements (e.g., an SOI- or chip-based IC) and a trigger mechanism disposed on a frangible glass substrate. The trigger mechanism includes a switch that initiates a large trigger current through a self-limiting resistive element in response to a received trigger signal. The self-limiting resistive element includes a resistor portion that generates heat in response to the trigger current, thereby rapidly increasing the temperature of a localized (small) region of the frangible glass substrate, and a current limiting portion (e.g., a fuse) that self-limits (terminates) the trigger current after a predetermined amount of time, causing the localized region to rapidly cool down. The frangible glass substrate is engineered such that a stress profile produced by the rapid heating/cooling of the localized region generates an initial fracture force that subsequently propagates throughout the glass substrate, whereby sufficient potential energy is released to powderize the electronic elements.

An integrated circuit, comprising an electrical-switching mechanical device in a housing having at least one first thermally deformable assembly including a beam held in at least two different locations by at least two arms secured to edges of the housing, the beam and the arms being metallic and situated within the same first metallization level and an electrically conductive body, wherein the said first thermally deformable assembly has at least one first configuration at a first temperature and a second configuration when at least one is at a second temperature different from the first temperature, wherein the beam is at a distance from the body in the first configuration and in contact with the said body and immobilized by the said body in the second configuration and establishing or prohibiting an electrical link passing through the body and through the beam.