Abstract: A self diagnostic solid state relay for converting a low current input into a high current output and providing the combined functions of silent switching and visual indication of circuit status. A three dimensional polygonal shaped housing encloses a printed circuit board. A MOSFET field effect transistor, a pair of female circuit board terminals, and a pair of LED elements are electrically communicable with a first side of the printed circuit board, the LED elements further being viewable from an exterior location of the housing. A fuse including first and second spaced apart and extending blade portions engage, respectively, with the first and second female terminals through openings defined in the housing. A plurality of male circuit board terminals are in electrical communication with a second side of said printed circuit board and extend from further selected exterior locations of the housing.

Abstract: A stacked-type capacitor with a fuse function for breaking an abnormal current wherein internal electrodes of a same polarity stacked in a ceramic body are led out to an outer surface of the ceramic body through lead-out electrodes. The lead-out electrodes have end surfaces exposed in the outer surface of the ceramic body. A film electrode for fuse function is formed on the outer surface to overlie the end surfaces of the lead-out electrodes and to be connected to an external electrode formed on the ceramic body. The film electrode is made from metallic powder and/or metallo-organic compound paste. The paste can contain powder of glass forming elements.

Abstract: A battery protection circuit for use between a battery output and a load is achieved. The circuit comprises, first, a plurality of fused cells coupled in parallel between the battery output and the load. Each fused cell comprises, first, a fuse having first and second terminals where the first terminal is coupled to a battery output. Second, a means having zener effect has a p terminal and an n terminal. The p terminal is coupled to the second terminal of the fuse. Finally, a cell switch having first and second terminals completes each fused cell. The cell switch first terminal is coupled to the second terminal of the fuse, and the cell switch second terminal is coupled to the n terminal of the diode to form a cell output. Finally, the battery protection circuit comprises a shorting switch, that may comprise a MOS transistor that exhibits punch through, that is coupled between the load and each fused cell output. The current source second terminal is coupled to ground.

Abstract: A GFCI/AFCI circuit breaker includes a housing, separable contacts, and an operating mechanism for opening and closing the separable contacts. A first trip mechanism includes a GFCI/AFCI trip circuit having a resistor. The resistor is energized in response to a trip condition. The first trip mechanism cooperates with the operating mechanism to trip open the separable contacts in response to the trip condition. The resistor has a body which burns open in response to a failure of the separable contacts to trip open. A second trip mechanism engages the body of the resistor and cooperates with the operating mechanism to trip open the separable contacts in response to the body of the resistor burning open.

Abstract: An excess current interrupting structure comprising a conductive wire rod which generates heat by an excess current connected between a pair of electric conductors, a circumference of the conductive wire rod being covered with a resin with a thin coated layer formed in the vicinity of a path of the conductive wire rod.

Abstract: A circuit breaker is formed of a main body case made of resin and divided into a lower case, an upper cover, and an intermediate case, into which parts of the circuit breaker are integrated. The intermediate case has pocket shaped sockets formed on a top surface side thereof, into which the tips of the interphase partition walls provided in the upper cover are fitted. Also, the intermediate case has recessed grooves formed on a bottom surface side thereof to fit over upper edges of the interphase partition walls provided in the lower case. Thus, the circuit breaker can be assembled easily and becomes more rigid.

Abstract: A cable network and a method for protecting the cable network against a serial arc are disclosed. In particular, a 42 V vehicle network for a motor vehicle is contemplated. The cable network includes a supply line connecting a voltage source and a load. The supply line includes two cable runs that are connected in parallel. Each of the cable runs contains a fuse therein. In the event of a cable defect in one (first) of the cable runs, all of the current flows via the other (second) cable run. This prevents an arc from being formed at the cable interruption in the first cable run. The fuses are preferably in the form of electronic components, which positively disconnect one another as soon as one component is activated due to a fault.

Abstract: An electric conductor, in particular for connecting the starter relay and starter motor of a motor vehicle, includes an ignition device (5), which is in thermal contact with the conductor (1) and is intended, if a limit temperature is exceeded, for igniting and destroying the conductor (1). The conductor (1) includes one or more strands extending continuously between the ends (3) of the conductor. The ignition device is disposed on the conductor (1) so as to split apart these strands in the event of ignition.

Abstract: A reset knob 20 is mounted to a tip end of a shaft 16. A torsion spring 21 and a returning motion-preventing lock 22 are bent and accommodated in the reset knob 20. The returning motion-preventing lock 22 can rotate around a reset-knob fulcrum 20a of the reset knob 20 by a load of the torsion spring 21. Therefore, the returning motion-preventing lock 22 jumps out from inside of the reset knob 20 which is firmly connected together with the shaft 16 by a force of the torsion spring 21, thereby preventing the shaft 16 and the reset knob 20 from returning to an initial position. Further, since the returning motion-preventing lock 22 can easily be accommodated in the reset knob 20 manually, a reset operation for returning the shaft 16 to its original initial position can be carried out easily.

Abstract: The invention relates to a fuse holder for a fuse-link in which a fuse status indicator having a printed circuit board and a glow lamp is fitted. The necessary connecting lines are made of conductive plastic from the top and base contacts of the fuse-link to the printed circuit board of the status indicator. The conductive plastic is injected in channels which are provided therefor and are situated in the housing of the fuse holder.

Abstract: A protective device (3) for a hermetic type electromotively driven compressor (1a) includes a protector assembly (30) having a housing (32) with an electric current fuse (34) which detects a predetermined over-current. The housing (32) comprises an electrically insulating skirt member (31) formed so as to block a conductive part on the side facing an external connection terminal. By forming the electrically insulating skirt member (31) of housing (32) for a hermetic type electromotively driven compressor, insulation distance between a conductive part such as the electric current fuse (34) and an external conductive part such as a metal wall part (21) is set to be 9.5 mm or more.

Abstract: The safety device for a power circuit includes a first power circuit (2A) including a first load (4) and a first fuse element (5A) for receiving a first voltage power from a power supply (9) to supply the first voltage power to the first load through the first fuse element. The safety device includes a second power circuit (2B) including a second load (3) and a second fuse element (5B) for receiving a second voltage power from a converter (8), which converts the first voltage power into the second voltage power, to supply the second voltage power to the second load (3) through the second fuse element (5B). The device includes a fusion system (20) for fusing the other of the first and second fuse elements when an arbitrary one of the first and second fuse elements fuses.

Abstract: A low cost high side supply shut down circuit that operates to deactivate the power supply of a central supply, such as to pressure regulators, solenoid valves, etc., as parts of non-repairable electro-hydraulic transmission modules in the event of a malfunction, e.g. a low side driver circuit failure. The supply voltage is connected to the high side of a fuse. The load circuits receive power or no power depending on the operating condition of the fuse. Coupled across the fuse is a fuse trigger status detection circuit as part of a diagnostics and control module. The diagnostics and control module is connected to the input of a shut down low side output driver circuit. The attached low side loads have individual detection circuits that are coupled to the diagnostics and control module as well as their enable inputs.

Abstract: A photocoupler (100) includes a light emitting unit (120) which emits an input light (P); a first path (114) connecting a first terminal (110) and a second terminal (112); a switching circuit (150) provided in the first path (114) to open and close the first path (114) in response to the input light (P); and a circuit breaker (130, 140) provided in the first path (114) to disconnect the first path (114) in response to over current (excess current).

Abstract: A connector port for providing power to a serial device and termination of differential signals received therefrom is provided. The port includes circuitry providing a data interface and a power interface. The data interface is operably connected between an input differential wire pair and an output differential wire pair for providing termination of the input wire pair and transmission of signal onto the output wire pair. Further, the power interface includes a fuse link operably connected between a voltage input and a voltage output for providing overcurrent protection.

Abstract: A fault sensing electrical wire (411) utilizes one or more sensor strips (407) which provide an impedance change when the wire is subject to an overtemperature condition or mechanical damage of the wire. A control unit (402) measures the impedance of the sensor strips of the fault sensing wire and provides a control signal (405) to initiate an alarm or protective action based on the severity of the condition. The control unit (402) may monitor a number of fault sensing wires simultaneously or in sequence. The apparatus may be used to sense an electrical arc occurring in the insulation of the wire.

Abstract: Power distribution busses and methods are disclosed that provide flexible protection and alarming capabilities. Various embodiments provide interchangeability of fuses and circuit breakers within the same power distribution bus configuration. These various embodiments also provide discrete alarming for fused lines, discrete alarming for lines with circuit breakers, combined alarming for lines having mixed forms of protection, and/or selectable alarming such as combined versus discrete in relation to employing all fused lines, employing all circuit breaker protected lines, or employing mixed line protection.

Abstract: A fuse cell with reduced or no static power dissipation is disclosed. The fuse cell utilizes a latch to store the state of the fuse. The use of the latch avoids having a pull-up power source being coupled to ground when the fuse is uncut as with conventional fuse cells.

Abstract: A start-up switch 50 for an electric motor 1 comprises a resistive element (54) which is so constituted as to be connectable to an electric current path (15) and which has such a characteristic that its resistance value increases by the heat generated by electric current that flows through the electric current path (15) and a thermostatic switch (60) which is connected in series with the resistive element (54). The thermostatic switch (60) has an actuation member (60) which is responsive to temperature so that upon reaching a preselected temperature, said member moves from a closed current path position to an open current path position. The thermostatic switch (60) is positioned to be in direct heat transfer relationship with the resistive element (54) so that the member will (66) rise in temperature as the resistive element (54) rises in temperature.

Abstract: A protective device for excess current utilizes a fuse that incorporates a printed circuit board. The printed circuit board has a trace on one side which is of a desired width, length, and thickness of material for opening if excess current for a selected duration of time is reached. The printed circuit board is mounted in an insulated housing. The lower side of the substrate may also have a conductive layer connected to the housing or ground. The printed circuit board and overvoltage protector may be tailored for impedance matching. An excess voltage protector may be incorporated with the printed circuit board for conducting to ground if excessive voltage is encountered. The housing has two terminals which are connected to the printed circuit board and voltage protector. These terminals may be conventional coaxial cable connectors.

Abstract: A shunt regulator circuit and method for protecting the circuit having a plurality of fuses parallely arranged in a bank so that lower rated fuse can be used while improving the control characteristics of activating the fuse elements. The circuit operates in one of two modes, a shunt regulator mode and a fuse activation mode. In the shunt regulator mode, a feedback circuit prevents any fuse that has blown open form loading a feedback signal to the regulator amplifier of the circuit. In fuse activation mode, each fuse is selectively activated so that a large amount of current is caused to flow through the fuse element until it blows open. This continues for each fuse element in the bank until the safety concern has been eliminated.

Abstract: A shunt regulator circuit and method for protecting the circuit having a plurality of fuses parallely arranged in a bank so that lower rated fuse can be used while improving the control characteristics of activating the fuse elements. The circuit operates in one of two modes, a shunt regulator mode and a fuse activation mode. In the shunt regulator mode, a feedback circuit prevents any fuse that has blown open form loading a feedback signal to the regulator amplifier of the circuit. In fuse activation mode, each fuse is selectively activated so that a large amount of current is caused to flow through the fuse element until it blows open. This continues for each fuse element in the bank until the safety concern has been eliminated.

Abstract: A waveform correction filter is connected into an alternating current power line to absorb and remove various forms of power pollution, including high-frequency spikes, surges and other forms of high-frequency oscillations, such as those which result from switching inductive loads on and off. The waveform correction filter of the invention includes a fuse and a coaxial amorphous toroidal inductor connected between a power line and neutral with a low-pass filter connected in series with the fuse and coaxial amorphous toroidal inductor. The filter includes a capacitor, a varistor connected in parallel with said capacitor, and a magnetic core inductor connected in series with each other and in parallel with the capacitor and said varistor. A lamp may be connected in series with the resistor and the magnetic core inductor or across the resistor. Various arrangements are shown for connecting a plurality of the waveform correction filters into single phase or three-phase Wine or delta circuits.

Abstract: The invention concerns a bridge rectifier for rotary current generators, in particular for supplying the electrical system of motor vehicles. It comprises rectifier diodes and a printed circuit board comprising an insulator (23) basically designed in the shape of a plate, in which multiple connection conductors (24) are embedded between the diodes of the rectifier bridges, whereby sections of these connection conductors are designed to be bent extending out of the insulator and as fuses (25) that melt in case of electrical overload. In order to achieve the smallest possible tolerances for operation of the fuses, each of the fuses (25) is formed out of two conductor ends (24a)-bent to the outside-of the connection conductors (24) and a fuse element (29) connected with them that bridges the conductor ends.

Abstract: In an electrical load controller, a thermal fuse is blown at an abnormal heating of an electrical load, so that an electrical circuit of the electrical load is disconnected. The controller controls a work amount of the electrical load by intermittently controlling electrical power to be supplied thereto. The power supply to the electrical load is intermittently stopped even when the work amount of the electrical load is controlled at a maximum amount. Therefore, an arc, generated when the thermal fuse is blown, disappears while the power supply is stopped, so that the thermal fuse can be accurately operated.

Abstract: A restricting wall (53) confronting an inner face wall (32b) of a first divided body (32) is stood on an inner face wall (33b) of a second divided body (33). The restricting wall (53) is provided with an inclined wall surface (53b) inclined away from the inner face wall (32b) of the first divided body (32). A tipping-resistant rib (54) is provided at both end portions of the restricting wall (53). The first divided body (32) is provided with a flexible arm (51) having a latch (57), and the restricting wall (53) of the second divided body (33) is provided with a notch (52), constituting first locking mechanism. The first divided body (32) is provided with an engaging projection, and the second divided body (33) is provided with an engagement groove (56) engageable with the engaging projection, as second locking mechanism. An engagement groove (56) is provided on an extension wall (36) of the second divided body (33).

Abstract: The fail-safe electronic circuit breaker includes a test circuit connected to a fault detection circuit. The test circuit selectively generates a simulated circuit fault that is supplied to the fault detection circuit. The fail-safe electronic circuit breaker also includes a trip mechanism disabler that is connected to the test circuit. The trip mechanism disabler permanently disables the fail-safe electronic circuit breaker when the fault detection circuit fails to detect the simulated circuit fault after about a predetermined amount of time.

Abstract: An integrated circuit (10) having at least one programmable fuse (F1) and ESD circuitry (MN3, MN1) preventing the fuse (F1) from being unintentionally blown when a voltage transient exists on a main voltage potential (Vmain). The ESD circuitry preferably comprises of MOSFET switches which are coupled to turn on quicker than a main fuse programming switch (MNmain) due to the voltage transient, thereby insuring that the main switch remains off during the voltage transient to prevent the unintentional blowing of the fuse F1. The circuit is well suited for programmable logic device (PLDs), allowing for read voltages as low as 6 volts, and allowing for programming voltages as high as 40 volts.

Abstract: This power supply protective device for cars can be used to protect electric appliances when they are connected to cars. Such a protective device can protect expensive electric appliances used in cars such as laptop computers. When these appliances are in use, they make use of the extended power supply from the cigar-lighter base in cars. This invention can protect such a power supply source. The invention uses a simple inserting/connecting structure to wrap the thin lock-piece fuse inside and then insert it into the cigar-lighter base. Moreover, it is very easy to change fuses.

Abstract: A fuse cutout for connection to a power source includes a mounting having upper and lower support members extending from opposing ends of the mounting. The upper support member includes a first contact having opposing first and second end portions, with the first end portion being attached to the upper support member, and a dome portion disposed between the first and second end portions. The dome portion includes opposing first and second dome surfaces and a first ridge extending along the second dome surface. A holder member is fixedly attached to the lower support member of the mounting. A pivot member is received in the holder member at a first pivot point, the pivot member being movable between first and second positions. A fuseholder is movable between closed and open positions and has upper and lower ends. The lower end is pivotally coupled to the pivot member at a second pivot point.

Abstract: The electrophoresis apparatus comprises rectifier (A) which rectifies an AC current from a universal AC power source and outputs a rectified wave, an electrophoresis cell and an electric controller which applies an electric output from the rectifier (A) to a carrier disposed in the electrophoresis cell, the elastic controller comprising a controller (3) for indirectly controlling, in accordance with external inputs, a driving section (6) which controls an electric output from the rectifier circuit. The electrophoresis cell unit defines a recess for receiving the electric controller, and a cover is positionable over the electrophoresis cell unit. The cover includes a cover terminal, where the cover and cover terminal are shaped to electrically connect an output terminal of the electric controller to an input terminal of the electrophoresis cell unit when the cell covers the electrophoresis cell unit.

Abstract: An excess current interrupting structure comprising a conductive wire rod which generates heat by an excess current connected between a pair of electric conductors, a circumference of the conductive wire rod being covered with a resin with a thin coated layer formed in the vicinity of a path of the conductive wire rod.

Abstract: A power breaking device 20 includes a stationary box 21, a fuse carrying box 23 and a guide and restricting mechanism 25. The stationary box 21 consists of a fixed housing 26, a load-side bus bar 27 and a power-side bus bar 28. The fuse carrying box 23 consists of a carrying box body 60 detachable to the stationary box 21 and a fuse fixing part 61 for carrying a fuse 22. The mechanism 25 is constituted by slits 41, 41 formed in a partition wall 34. The partition wall 34 is formed integrally with the fixed housing 26 to define an accommodating part 39 in which the fuse 22 is accommodated and retained. When the fuse carrying box 26 is fitted to the stationary box 21, the slits 41, 41 serve to introduce both terminals 24, 24 of the fuse 22 to a power-connecting part and a load-connecting part of the stationary box 21 and also restrict the displacement of the terminals 24, 24.

Abstract: A breaker apparatus comprises: a breaker switch including a pair of fixed electrodes standing upright on the breaker body, a plug detachably mounted on the breaker body, and a movable electrode provided on the plug for disconnecting and connecting between both fixed electrodes by being pulled out or pushed in to the both fixed electrodes; and a fuse mounted in parallel with the breaker switch, characterized in that a locking lever is pivotably mounted on one of the breaker body and the plug and the locking lever is pivoted to the locking position where the plug is locked in the fitted state, in that the breaker body is provided with a micro switch having a swinging strip for detecting whether or not the locking lever is pivoted to the locking position so that the micro switch is activated when the tip of the locking lever pivots along the length of the swinging strip and presses the swinging strip on the way to activate the micro switch, and in that the tip of the locking lever is formed so that the length is

Abstract: A fuse device includes two prongs secured in a casing, and a fuse member secured between the prongs. An indicating device is electrically coupled to the prongs or to the fuse member for generating a warning or an indicating signal when the fuse member is broken. The indicating device includes a pair of conductor blades electrically coupled to the prongs, and an indicating member, such as a light device or a buzzer, secured between the conductor blades for generating an indicating light or a warning sound when the fuse member is broken.

Abstract: A fuse apparatus (1) is provided for selectively interrupting a load current (Ia) flowing between a pair of associated conductor leads. The fuse apparatus includes at least two spaced apart electrically conductive contact elements (5) operatively connected with the associated conductor leads. A fuse element (7) is connected to the contact elements (5) using an electrically conductive connection material (9) to allow the current (Ia) to flow between the pair of associated conductor leads. The connection material (9) is adapted to electrically disconnect the fuse element (7) from the contact elements (5) when the current (Ia) exceeds a predetermined current intensity. The connection material (9) has an intrinsic electrical transition resistance characteristic whereby the material develops a temperature in proportion to an intensity of the current. The connection material melts as the current increases to separate the fuse element from the contact elements.

Abstract: A safety device of an electric circuit is provided, in which a thermal fuse securely prevents an accident from occurring when an overcurrent protector is extraordinarily overheated. The safety device includes: first protective means in an overcurrent protector for protecting the electric circuit from an overcurrent, which generates heat to increase its electrical resistance when an overcurrent flows in the electric circuit, whereby reducing or cutting off the overcurrent; and second protective means including a thermal fuse situated in the vicinity of the overcurrent protector containing: a first electrode having a first conductor pattern connected to the overcurrent protector; a second electrode having a second conductor pattern insulated from the first electrode by a gap; and solder connecting the first and second electrodes and melting by heat from the overcurrent protector so as to split into two parts toward the first and second electrodes.

Abstract: The power supply tuning circuit in accordance with the present invention is provided with a plurality of power supply circuits. Each power supply circuit includes a latch circuit. The latch circuit records a tuning signal. The recorded tuning signal causes the corresponding transistor to switch on/off. In this manner, pseudo-tuning is performed. After a tuning signal is supplied to the latch circuit, the tuning signal is supplied to another power-supply circuit. Thus, pseudo-tuning can be preformed simultaneously for a plurality of power supply circuits.

Abstract: A power circuit breaker has a housing, a fuse element placed in the housing, and a temperature sensitive fuse attached to the fuse element. The fuse element has tab terminals extending from both ends, which are received by trunk terminals connected to an external circuit. The temperature sensitive fuse has a blowout temperature lower than that of the fuse element. The power circuit breaker also has transistors connected to the temperature sensitive fuse. An igniter is placed below the fuse element in the housing, and one of the transistors is connected to the igniter. The temperature sensitive fuse blows out when an excessive current flows through the fuse element, and one of the transistors connected to the igniter is turned on upon the blowout of the temperature sensitive fuse. A gas is jet from the igniter upon turning on the transistor, whereby the tab terminals of the fuse element are disconnected from the trunk terminals.

Abstract: An electronic device comprising at least a first part and a second part, the first part and second part being movable between a first closed position and a second open position. The device has a hinge for coupling together the first part and the second part, the hinge providing an axis of rotation and including a knuckle on the first part and a knuckle on the second part. An electrical connector is provided for connecting electronic components housed in the first part and the second part, said connector being routed via the hinge. The electrical connector comprises an elongate body having a helical turn along its length which helical turn extends from within the knuckle on the first part to within the knuckle on the second part.

Abstract: A fused electrical disconnect device includes a housing defining a cartridge receptacle. A line interface and a load interface are disposed within the receptacle. A line terminal extends into the body and is in electrical communication with the line interface. A load terminal also extends into the body and is in electrical communication with the load interface. A fuse holding cartridge is removably insertable into the cartridge receptacle and releasably accommodates a load protection fuse. The fuse holding cartridge establishes an electrical current path between the line and load interfaces when the fuse holding cartridge accommodates a load protection fuse and is inserted into the cartridge receptacle. An alarm signal circuit is also in electrical communication with the line and load terminals. The alarm signal circuit generates an alarm signal when the electrical current path is interrupted and the line and load terminals are electrically coupled to a power source and a load respectively.

Abstract: A thermal protective fuse having a cylindrical body with a thermally protective portion disposed substantially adjacent to one end of the cylindrical body is mounted in close proximity with the body of a metal oxide varistor, with the thermally responsive portion of the fuse positioned approximately adjacent the center of the varistor body.

Abstract: A protection device for an electrical component that has a protective housing and a terminal cap. The protective housing has a base with a contact hole therethrough for accommodating an electrical terminal pin. A projecting perimeter wall extends from the base. Attached to the perimeter wall is an inwardly extending tapered rib. Each rib is tapered such that the end of each rib closest to the base surface extends from the perimeter wall further than the end of the rib furthest from the base surface. A terminal cap is placed within the perimeter wall and forced toward the base surface until the tapered ribs engage and are deformed by the terminal cap to provide an interference fit between the ribs and the terminal cap. A method of assembling a battery and an electrical component with such a protection device is also disclosed.

Abstract: A semiconductor bilateral switch that minimizes the on-state resistance by making a common-source connection between the switch transistors internal to the package. Wire bonds internally connecting the source electrodes of the transistors also provide the function of one or both of a current sense resistor and fuse element.

Abstract: The power circuit breaker has an igniter unit disposed in a cylindrical wall formed in a main housing. A holder is disposed in the cylindrical wall so as to oppose to the igniter unit. The holder has a boss engaged with the cylindrical wall, and a fuse element is held by the holder. Each end of the fuse element is electrically connected to one of a pair of interconnection terminals disposed in the main housing. The holder is locked by a locking lance formed in the main housing when each end of the fuse element has engaged with one of the interconnection terminals. The holder rests on the locking lance when the fuse element has been released from the interconnection terminals after activation of the igniter unit. The fuse element is engaged with and stopped by an insertion hole of the holder.

Abstract: In the breaker device, a pair of stationary electrodes 20, 21 are arranged on the front and the rear side of the protruding wall 18, that is, the pair of stationary electrodes 20, 21 are collected at one place. Therefore, the pair of stationary electrodes 20, 21 have a space round both the stationary electrodes in common. Accordingly, the size of the breaker device can be reduced. Further, when the radius of curvature of the continuity section 73 connecting the pinching pieces 71, 72 is made large, concentration of stress in the movable electrode 70 can be relieved. Therefore, the pinching forces of both the pinching pieces 71, 72 can be increased. Accordingly, it is possible to ensure a sufficiently high contact pressure between the movable electrode 70 and the stationary electrodes 20, 21.

Abstract: A fused electrical disconnect device comprises a housing and line and load connectors extending from one side of the housing. A line buss is disposed within the housing and is electrically connected to the line connector. A load buss is also disposed within the housing and is electrically connected to the load connector. A fuse holding cartridge is removably insertable into the housing. The fuse holding cartridge includes a body and line and load terminal blades extending from one side of the body. The line terminal blade contacts the line buss and the load terminal blade contacts the load buss when the fuse holding cartridge is inserted into the housing. A load protection fuse is removably insertable between the line and load terminal blades to establish an electrical current path between the line and load terminal blades.

Abstract: A fuse cutout for connection to a power source comprising, a mounting having upper and lower support members extending from opposing ends of the mounting, respectively. A holder member fixedly attached to the lower support of the mounting. A pivot member received in the holder member at a first pivot point, the pivot member being movable between first and second positions. A fuseholder having upper and lower ends, the lower end being pivotally attached to the pivot member at a second pivot point, the fuseholder being movable between closed and open positions corresponding to the first and second positions of the pivot member, respectively. A first biasing member disposed between the pivot member and the lower end of the fuseholder at the second pivot point, biasing the pivot member toward the second position. The pivot member includes a planar cam surface that engages a lower contact of the holder member.

Abstract: The power supply tuning circuit in accordance with the present invention is provided with a plurality of power supply circuits. Each power supply circuit includes a latch circuit. The latch circuit records a tuning signal. The recorded tuning signal causes the corresponding transistor to switch on/off. In this manner, pseudo-tuning is performed. After a tuning signal is supplied to the latch circuit, the tuning signal is supplied to another power-supply circuit. Thus, pseudo-tuning can be preformed simultaneously for a plurality of power supply circuits.

Abstract: A redundant electric fuse circuit is provided that includes a plurality of fuses coupled in series and each having a fuse control device operable for generating a current through each fuse sufficient to blow the fuse. A first fuse control signal is activated to generate a sufficient current through one of the fuses to blow the fuse. A second fuse control signal is activated to generate a sufficient current through the other fuse to blow that fuse. The electric fuse circuit provides redundancy thereby increasing the yield of integrated circuits by reducing the probability that a defective fuse (i.e., a fuse that reforms after blowing) will cause a fatal defect in the integrated circuit.