A surge protective device (SPD) module includes a varistor and an electrical conductor. The varistor includes a hole defined therein and extending through the varistor. The electrical conductor extends through the hole in the varistor.

A zero-power plasmonic microelectromechanical system (MEMS) device is capable of specifically sensing electromagnetic radiation and performing signal processing operations. Such devices are highly sensitive relays that consume no more than 10 nW of power, utilizing the energy in detected electromagnetic radiation to detect and discriminate a target without the need of any additional power source. The devices can continuously monitor an environment and wake up an electronic circuit upon detection of a specific trigger signature of electromagnetic radiation, such as vehicular exhaust, gunfire, an explosion, a fire, a human or animal, and a variety of sources of radiation from the ultraviolet to visible light, to infrared, to terahertz radiation.

A zero-power plasmonic microelectromechanical system (MEMS) device is capable of specifically sensing electromagnetic radiation and performing signal processing operations. Such devices are highly sensitive relays that consume no more than 10 nW of power, utilizing the energy in detected electromagnetic radiation to detect and discriminate a target without the need of any additional power source. The devices can continuously monitor an environment and wake up an electronic circuit upon detection of a specific trigger signature of electromagnetic radiation, such as vehicular exhaust, gunfire, an explosion, a fire, a human or animal, and a variety of sources of radiation from the ultraviolet to visible light, to infrared, to terahertz radiation.

A temperature-dependent switch comprising first and second stationary contacts and a temperature-dependent switching mechanism having a movable contact member. The switching mechanism, in its first switching position, presses the contact member against the first contact and thereby produces an electrically conductive connection and, in its second switching position, keeps the contact member spaced apart from the first contact and thereby disconnects the electrically conductive connection. The switch further comprises a closing lock that, as soon as it is activated, prevents the switch once having opened from closing again. The closing lock comprises a locking element having a shape-memory alloy and an opening through which the movable contact member protrudes. The locking element is configured to change its shape upon exceeding a locking element switching temperature and activate the closing lock, which holds the switching mechanism in its second switching position.

A circulating bath (10) including a heater (18) configured to heat a fluid (34) in a reservoir (22). The heater (18) is configured to be operatively connected to a source of power (50) by a control circuit (39) operatively coupled to the heater (18). First and second fluid level sensors (14) (16) are operatively coupled to the control circuit (39), and provide signals indicative of a low fluid condition in the reservoir (22). The control circuit (39) is configured to receive the signals from the fluid level sensors (14) (16), and disconnect the heater (18) from the source of power (50) in response to receiving a signal from either of the first and second fluid level sensors (14), (16) indicative of a low fluid condition.

A circulating bath (10) including a heater (18) configured to heat a fluid (34) in a reservoir (22). The heater (18) is configured to be operatively connected to a source of power (50) by a control circuit (39) operatively coupled to the heater (18). First and second fluid level sensors (14) (16) are operatively coupled to the control circuit (39), and provide signals indicative of a low fluid condition in the reservoir (22). The control circuit (39) is configured to receive the signals from the fluid level sensors (14) (16), and disconnect the heater (18) from the source of power (50) in response to receiving a signal from either of the first and second fluid level sensors (14), (16) indicative of a low fluid condition.

This application provides a protective circuit and a display device. The protective circuit includes a control line, a transmission line, and an active switch. The control line transmits a control signal; the transmission line includes an input line and an output line; and a control end of the active switch is electrically coupled to the control line, a first end of the active switch is connected to the input line, and a second end of the active switch is connected to the output line. A protected wire is arranged between the input line and the output line.

An electric wire protection device comprising a pyrotechnic cutoff switch disposed between an electric wire connecting a load and a vehicle-mounted power supply that is connected to a reference potential. The pyrotechnic cutoff switch is disposed between the electric wire and has: a conductive part through which current between the vehicle-mounted power supply and the load flows; a cutting blade cuts the conductive part; a drive part, actuated by gunpowder, propels the cutting blade in a direction in which the conductive part is to be cut; and first and second terminals that input and output current that drives the drive part. In addition, the electric wire protection device comprises: a conductive wire having one end thereof connected to the electric wire and the other end thereof connected to the first terminal; and a diode having an anode connected to the reference potential and a cathode connected to the second terminal.

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.