A semiconductor circuit and a semiconductor device for determining a status of a fuse element are provided. The semiconductor circuit includes a configurable reference resistor unit with a first terminal receiving a first power signal and a second terminal electrically coupled to the fuse element. The semiconductor circuit also includes a first switching circuit electrically connecting the configurable reference resistor unit and the fuse element and a latch circuit for reading an evaluation signal of a first node between the configurable reference resistor unit and the fuse element.

A semiconductor circuit and a semiconductor device for determining a status of a fuse element are provided. The semiconductor circuit includes a configurable reference resistor unit with a first terminal receiving a first power signal and a second terminal electrically coupled to the fuse element. The semiconductor circuit also includes a first switching circuit electrically connecting the configurable reference resistor unit and the fuse element and a latch circuit for reading an evaluation signal of a first node between the configurable reference resistor unit and the fuse element.

A method for detection of a failure of a protective fuse used to protect an associated load against overcurrent and/or against overload, wherein the method includes the steps of: measuring an electrical current, flowing through the protective fuse to the load by means of a current sensor element, determining a thermal energy generated in the protective fuse depending on the measured electrical current, and automatically detecting a failure of the protective fuse if the determined thermal energy exceeds a predetermined threshold value and if the electrical current, measured by the current sensor element has stopped flowing through said protective fuse.

A method for detection of a failure of a protective fuse used to protect an associated load against overcurrent and/or against overload, wherein the method includes the steps of: measuring an electrical current, flowing through the protective fuse to the load by means of a current sensor element, determining a thermal energy generated in the protective fuse depending on the measured electrical current, and automatically detecting a failure of the protective fuse if the determined thermal energy exceeds a predetermined threshold value and if the electrical current, measured by the current sensor element has stopped flowing through said protective fuse.

A method of testing a fuse in apparatus for monitoring electrical insulation surrounding first and second electrical conductors in a cable, the fuse being connected to the conductors, comprises: applying an electrical signal, with respect to a reference, to the fuse from a source; obtaining a value for the resistance of the insulation with respect to the reference; determining if the resistance value is greater than a fuse test resistance threshold and, if it is, causing the application of the signal to cease; and monitoring the decay of the signal to determine if the time for it to decay below a set value exceeds a set time limit, indicative of the fuse being satisfactory, or is less than the limit indicative of the fuse being blown.

The invention relates to a circuit arrangement (12) for monitoring and triggering an igniter (5) of an active electrical fuse (6). The arrangement comprises: a control and evaluation unit (1), an alternating current generating unit (2) activated by the control and evaluation unit (1), an alternating current transmission unit arranged between the igniter (5) and the alternating current generating unit (2), the control and evaluation unit (1) being designed and programmed, in a first operational state, to determine the electrical resistance of the igniter (5) from a current detected on the primary side and a voltage detected on the primary side, the value of the resistance being a measure for tripping of the igniter (5), and, in a second operational state, to trigger the igniter (5) by means of the alternating current generating unit (2). The invention further relates to an associated method, to a computer program product which carries out the method and a computer-readable medium, and to a converter and to an aircraft having such a circuit arrangement.

An operation method for a backup power supply of an electronic system is provided. The backup power supply includes a fuse. The operation method includes: estimating a reading voltage error and a resistance of the fuse; reading a real-time battery discharging current; reading and calculating a voltage difference between two terminals of the fuse; and determining whether to send a fuse replacement message to the electronic system according to the voltage difference between the two terminals of the fuse, the reading voltage error, the resistance of the fuse and the real-time battery discharging current.

Apparatus and method for controlling a pyro-fuse. A pyro-fuse control system includes a current sensing circuit and a diagnostic circuit. The current sensing circuit is configured to determine whether the current flowing in conductor exceeds a threshold current. The diagnostic circuit is coupled to the current sensing circuit. The diagnostic circuit is configured to determine whether an indication of current exceeding the threshold current generated by the current sensing circuit is caused by current flowing the conductor and is not caused by a fault in the current sensing circuit.

A device, a method and a system for monitoring an electrical connection status of a disconnector device (110). The disconnector device (110) being connectable to pole-mounted equipment in a power distribution or transmission grid (200), thereby disconnecting the pole-mounted equipment. The connection status monitoring device (100) comprises a determining section (130) configured to determine whether the disconnector device (110) has been activated and to generate connection status indicator data, indicative of whether the disconnector device (100, 110) has been activated. The determining section (130) further comprises a wireless communication section (140) which is adapted to connect to a wireless communication infrastructure (150) using a wireless communication protocol, and to transmit the connection status indicator data over the wireless communication infrastructure (150).

A device, a method and a system for monitoring an electrical connection status of a disconnector device (110). The disconnector device (110) being connectable to pole-mounted equipment in a power distribution or transmission grid (200), thereby disconnecting the pole-mounted equipment. The connection status monitoring device (100) comprises a determining section (130) configured to determine whether the disconnector device (110) has been activated and to generate connection status indicator data, indicative of whether the disconnector device (100, 110) has been activated. The determining section (130) further comprises a wireless communication section (140) which is adapted to connect to a wireless communication infrastructure (150) using a wireless communication protocol, and to transmit the connection status indicator data over the wireless communication infrastructure (150).