Abstract: A motor condition detection apparatus detects motor driving voltage of driving electric source supplied to a motor and detects voltage of a control device for driving and controlling the motor. The apparatus calculates voltage difference between the motor driving voltage and the voltage of the control device. The apparatus provisionally determines the motor locking condition based on the voltage difference during driving of the motor and the apparatus stops driving the motor after the motor locking condition is provisionally determined. The apparatus detects regenerative voltage of the motor when driving of the motor is stopped and finally determines the motor locking condition based on the regenerative voltage.

Abstract: A device for de-energizing an energized branch electrical circuit is described, as well as related processes. The device includes a circuit breaker, which itself includes a breaker switch, an input terminal for receiving current, and an output terminal for directing current out of the breaker. A plug is also incorporated into the device, so that the device can be inserted into an electrical receptacle in the branch electric circuit. One or more power indicators, such as an LED light or voltmeter, are also incorporated into the device. When the device is plugged into a receptacle of the branch circuit, the breaker switch can then be turned on, resulting in a short-circuit, which de-energizes the branch electrical circuit. The device may also include a holder, which is capable of retaining at least one electrical adapter.

Abstract: A method and circuitry for pre-conditioning an electrical signal. The method comprises limiting the strength of the signal to not exceed a limit signal strength corresponding to the onset of substantial non-linear response of an amplifier to which the limited signal is to be supplied for amplification.

Abstract: A string set of series-connected incandescent bulbs in which substantially all of the bulb filaments in the set are individually provided with a shunt circuit which includes a voltage responsive switch which is inoperative during normal operation of the string set when connected to a source of operating potential and which becomes operative only in response to an increase in the voltage thereacross which exceeds its rating, and in which the remaining bulbs of the circuit continue to receive substantially rated current therethrough and substantially rated voltage thereacross and further continue to be illuminated at substantially constant illumination even though other or substantially all of the other bulbs in the string are either inoperative or are missing from their respective sockets. If flasher bulbs are used in the string, they will twinkle off and on when the operating potential is applied.

Abstract: An inverter control unit for motor driving includes a rectifier circuit for converting into a DC power a first AC power inputted from an AC power supply, which includes a diode bridge and a reactor connected to an AC input side or a DC output side of the diode bridge and having a small inductance, and an inverter for converting the DC power from the rectifier circuit into a second AC power so as to output the second AC power to a motor. Furthermore, a capacitor for absorbing regenerative energy of the motor, which has a small capacitance and an overvoltage protecting circuit whose impedance is lowered by overvoltage are connected between DC buses of the inverter.

Abstract: A protection circuit for a power switching device of the type configured to supply load current to an electrical load from a voltage source. The protection circuit includes a voltage drop sensing circuit connected in parallel with the switching device to sense a voltage drop across the switching device. A limit circuit is connected to the voltage drop sensing circuit and operates to inhibit further flow of load current through the switching device in relation to the sensed voltage drop. The limit circuit limits the load current to different maximum values for different sensed voltage drop values. This enables the load current to be limited to a lower value in the event an electrical short occurs across the load, reducing the amount of power dissipated by the switching device.

Abstract: Certain exemplary embodiments provide a method comprising: providing system electrical load information for an electric power system to one or more neural networks; and via the one or more neural networks, predicting a system electrical load for a predetermined immediate future period.

Abstract: There is provided a surge protector assembly for use with a 66-M type terminal connector block having a plurality of parallel rows of opposed terminals which are laterally spaced apart from each other. The surge protector assembly includes a housing module formed of co-mating front and back halves. A miniature printed circuit board is disposed within the housing module. Surge protector devices, a protector-operational status indicator circuitry, and a ground-connected status indicator circuitry are disposed on the miniature printed circuit board. A plurality of tip/ring terminal contacts are disposed within a lower portion of the housing module for mating with corresponding ones of the opposed terminals of the 66-M type terminal connector block.

Abstract: A telecom circuit protection apparatus includes a housing having at least first and second temperature responsive circuit protection devices, such as a fuse and a thyristor disposed therein. A first metal lead is connected to respective first terminals of the first and second circuit protection devices and is structured and arranged such as to transfer heat freely between the second circuit protection device and the first circuit protection device. A second metal lead is connected to a second terminal of the first device and a third metal lead is connected to a second terminal of the second device. The first, second and third metal leads extend from the housing. Advantageously, the portions of the first, second and third metal leads extending from the housing have reduced cross-sections to reduce heat loss from the apparatus and are formed and made solderable for use as connection points for surface mount connection to the apparatus.

Abstract: A surge protection device includes a first electrode and a second electrode. An air breakdown spark gap is between the second and first electrodes, an arc being formed upon an ignition of the air breakdown spark gap. A series arrangement of a potential dividing element and an ignition element is connected to the first and second electrodes.

Abstract: A monolithic integrated circuit arrangement containing a substrate, a functional unit formed in and/or on the substrate, and an energy supply unit, which is formed in and/or on the substrate and is coupled to the functional unit and has an inductance and a permanent magnet. The inductance and the permanent magnet are arranged such that, under a vibration on the circuit arrangement, the permanent magnet is moved relative to the inductance such that an electrical induced voltage for supplying the functional unit with electrical energy is induced by the inductance.

Abstract: To provide a capacitance-type dynamic-quantity sensor capable of reducing a variation in detection sensitivity, free of peeling of an electrode or disconnection thereof, and excellent in reliability, and a manufacturing method therefor. In the capacitance-type dynamic-quantity sensor, a semiconductor substrate where an oscillator is to be formed is processed with a high precision from its front and rear sides to define minute spaces between the oscillator, and flat upper glass substrate and lower glass substrate on each of which an electrode is to be laminated, thereby reducing a variation in detection sensitivity and suppressing peeling of the electrode and disconnection thereof.

Abstract: Solenoid devices that include magnetic field sensors and methods for operating the devices are described. A device includes a magnetic field generator that generates a magnetic flux that extends through a magnetic flux circuit member formed at least in part from a ferromagnetic material and defining a gap that is effectively free of any ferromagnetic material. A magnetic flux sensor is disposed to sense a portion of the magnetic flux that extends across the gap. A device can be implemented as a fluid flow control valve.

Abstract: Methods of activating, enriching, manipulating, and producing macromolecular materials comprising highly conductive multielectron threads are provided together with superior such materials and devices comprising them. Activation methods such as doping the material with charged or uncharged dopants, using electrolysis techniques, and charging the material may be combined with various enrichment techniques that take advantage of reduced viscosity levels such as filtering and fractionation to obtain very high yields when producing conductive films, wires, and diamagnetic materials. Also disclosed are methods for electrically joining conductors and various devices comprising highly conductive macromolecular materials.

Abstract: Lightning strike protection system for aircraft fuel tanks made of low electrical conductivity composite material. The system comprises an electrical conductive thin wire mesh (1) that covers the whole external surface of the tank outer skin (I) made of composite and a thick wire metallic mesh (2) overlapping the mesh (1) at a minimum distance of 50 mm to both sides of a row of fasteners (III) joining the said outer skin (I) to one internal part (II) of either composite or metallic material. Both metallic meshes (1, 2) maintain electrical contact by their installation/assembly and by means of metallic countersunk head washers (3) connected to bonding points and set to the gap existing between the fastener (III) and the outer skin (I). The corresponding fabrication process is also described.

Abstract: A capacitor with better resistance to vibration, and a method for its production, are proposed. For this purpose, a capacitor winding (10) is introduced into a housing (5), such that it is partially interlocked with the housing. After this, the capacitor winding is impregnated, during which process it expands and additional pressure forces occur between the winding and the cover wall, which fix the capacitor in the horizontal direction. In a final method step, the capacitor is then fixed vertically between a cover (15) and the base of the cup-shaped housing, by pinching.

Abstract: A tunable capacitor. The tunable capacitor has a first fixed capacitor electrode and a second fixed capacitor electrode opposite to one another. The tunable capacitor also has a movable element formed of a conductive material. The movable element is moveable between the first fixed capacitor electrode and the second fixed capacitor electrode to adjust the capacitance between the first fixed capacitor electrode and the second fixed capacitor electrode.

Abstract: A variable capacitor. The variable capacitor has a movable capacitor electrode including a major surface and a fixed capacitor electrode including a major surface. The major surface of the fixed capacitor electrode is opposite the major surface of the movable capacitor electrode and is separated therefrom by a gap. The major surface of the movable capacitor electrode includes a rigidity-increasing feature. The rigidity-increasing feature further provides a capacitance-increasing topography and reduces snap-together of the capacitor electrodes.

Abstract: The present invention relates to a method of manufacturing a flat aluminum electrolytic capacitor comprising a separator impregnated with an electrolytic solution, an anode foil and a cathode foil, a flat capacitor element that has external lead-out terminals connected respectively to the anode foil and the cathode foil, and a flexible casing that houses the capacitor element and is hermetically sealed, said method comprising the steps of encasing the capacitor element in the flexible casing and applying aging treatment before hermetically sealing the casing, and hermetically sealing the flexible casing, and also relates to a flat aluminum electrolytic capacitor comprising a separator impregnated with the electrolytic solution, the anode foil and the cathode foil, the flat capacitor element that has the external lead-out terminals connected respectively to the anode foil and the cathode foil, and the flexible casing that houses the capacitor element and is hermetically sealed, wherein the electrolytic capacit

Abstract: The invention concerns a multilayer capacitor with a base body (1), formed from a stack of superimposed layers (2, 3) with at least one ceramic dielectric layer (2) and one electrode layer (3), in which the surface of the base body (1) has two contact layers (4, 5) and in which a dielectric layer (2) has a dielectric constant, &egr;, that is greater than 440. The capacitor has the advantage that it has a high electric constant and thus can be produced in small component sizes with high capacitance. The invention also concerns a process for producing the multilayer capacitor as well as an electroceramic component.

Abstract: The present invention relates generally to capacitor cells and the utilization of enhanced separator materials in such cells. More specifically, the present invention is related to the utilization of track-etched materials as the separator materials in capacitor cells. Methods of making a capacitor cell having a track-etched separator material is also disclosed.

Abstract: A novel electrode and method of making the same. The electrode may be used in electric double layer capacitors. The electrodes include activated carbon that has been mixed with a thermosetting polymer binder. Activated carbon cloth may also be used. The method of modifying the activated carbon helps produce an electrode with considerably higher electric capacity, higher durability, and low resistance, while maintaining high conductivity. Additionally, the electrodes may be produced more quickly and inexpensively.

Abstract: A porous aluminum anode is used in a capacitor. The porous anode is constructed by a solid freeform fabrication (SFF) process and has a plurality of pores. Each of the plurality of pores has a pore size. An electrolyte is infiltrated in the plurality of pores. An oxide layer is formed on the aluminum surface to provide a dielectric for the capacitor.

Abstract: An electrolytic cell and chamber for converting electric power into heat. The cell includes a non-conductive housing and a conductive end member sealingly positioned in and extending from each open end of the housing. The end members have spaced apart proximal end surfaces to define, in cooperation with said housing, a chamber. Catalytic particles comprising an admixture of (a) palladium or palladium black particles, (b) inert non-conductive particles and optionally (c) boron particles are closely packed into said chamber and against each proximal end. A longitudinal gas passage extends through each end member in gas communication with the chamber. Each gas passage is sealably closeable, one gas passage being connectable to a source of pressurized hydrogen (H2) or deuterium (D2) gas deliverable under pressure into the chamber.

Abstract: The switchgear unit (2), especially a motor starter, has a contactor (4) and a power switch (6) as short-circuit protection. The additional function of overload protection envisaged for the switchgear unit (2) is integrated in an overload relay (12,16) that is configured separately firom the power switch (4). The components (16) thereof preferably extend into free areas (18,20) formed by the arrangement of the contactor (4) and power switch as standard components on a support (8). This makes it possible to achieve an economical and space-saving configuration of the switchgear unit (2).

Abstract: A heat sink with fins has a flat, planar surface soldered to a metallic layer at one surface of a flat, planar ceramic layer. The opposite surface of the ceramic layer has a metallic pattern including base areas for high power, high frequency load switching MOSFETs. Lead frames are soldered between the lead frame base areas and base contact areas of the MOSFET packages. Thermal conduction between the MOSFETs and the heat sink dissipates the heat from switching losses. A gate drive circuit board for the load switching system is supported spaced from the and is separated from the MOSFETs by a thermally blocking air gap, with the component side of the gate drive circuit board facing away from the MOSFETs. Spade terminals of the lead frames extend through openings in the gate drive circuit board to route high power signals independently of the gate driver circuit board.

Abstract: The invention relates to portable communication devices and in particular to the casings of such devices. The casing has an operating face providing a key arrangement for operating face provides recesses in the input region for operation of the keys.

Abstract: The aim of the invention is to achieve, in the simplest possible manner, a movement of an electric switch (3) of a medium-high voltage switch panel on a mounting structure (1) between an interrupt position, a test position and an operating position. To this end, a single mechanical control module (9) is integrated in the mounting structure (1). This control module (9) controls the individual movement sequences while simultaneously transferring the drive forces required therefor.

Abstract: A portable electronic apparatus includes a host module, a display module, and a folding pivot module interconnecting the host and display modules. The pivot module includes first and second module members. The host module is connected pivotally to the first module member. The first module member is formed with a receiving cavity and is connected pivotally to the second module member. The display module is connected pivotally to the second module member. The second module member is received in the receiving cavity when in a folded position.

Abstract: A portable electronic device includes an expansion base module, a hinge mechanism mounted slidably on the expansion base module and slidable relative to the expansion base module, a docking unit pivoted to the hinge mechanism, defining a docking groove, and including a docking connector, and a system module including a panel having two opposite sides that respectively have two opposing end portions inserted into and detachably retained in the docking groove. The system module further includes a system connector that is mounted on the panel and that mates with the docking connector.

Abstract: A portable electronic device includes an expansion base module with a connector, a hinge mechanism mounted slidably on the expansion base module, slidable relative to the expansion base module, and including a pivot shaft, a system module pivoted to the expansion base module through the pivot shaft, and a ribbon cable having a first segment that is electrically connected to and that extends from the connector toward the pivot shaft, and a second segment that extends from the first segment, that is wound around the pivot shaft, and that is electrically connected to the system module.

Abstract: A portable electronic device includes an expansion base module, a pair of sliding members mounted slidably on the expansion base module, a system module connected to the sliding members, and a synchronizing unit including a pair of first front and rear pulleys, a pair of second front and rear pulleys, and an endless cord that is connected to the sliding members and that trains on the first front and rear and second front and rear pulleys in such a manner to permit synchronous sliding movements of the sliding members.

Abstract: An electronic apparatus includes a lower housing, an electronic component provided in the lower housing, an upper housing connected to the lower housing, a plurality of fastening members fastening the upper housing and the lower housing to each other and fixed to the lower housing through the upper housing, and a plurality of top covers connected to the upper housing and covering the plurality of fastening members.

Abstract: A portable computer includes a base, the base having a top face, a bottom face, a front edge, a rear edge, two opposite side edges, and a keyboard in the top face, a display unit, the display unit having a display screen for showing data, a top side, a bottom side, and two opposite lateral sides, and two coupling arms coupling the display unit to the base, the coupling arms each having a first end pivotally coupled to one lateral side of the display unit near the bottom side of the display unit, a second end pivotally coupled to a middle part of one side edge of the base, and an internal space for the passing of the electric signal line, which is electrically connected between the base and the display unit.

Abstract: A computer chassis frame includes a support structure on a load-bearing surface of the frame to support a computer chassis cover installed over the frame. The support structure may comprise a plurality of rounded portions on the load-bearing surface of the computer chassis frame, which provide multiple load points to distribute the cover's load on the frame. In addition, a computer chassis may include a removable structure for computer devices, where the removable structure includes an interface configured to mate with the support structures of the computer chassis frame.

Abstract: An external connection device for placing and connecting a storage device has a housing, a power output port, and a second signal I/O port. A chamber for placing the storage device is formed in the housing. The housing has a mesh area having a plurality of meshes that allow air to freely pass in and outof the chamber. The power output port is electrically connected to a power input port of the storage device for providing electric energy to the storage device. The second signal I/O port is electrically connected to a first signal I/O port of the storage device for delivering data recorded in the storage device to an electric device.

Abstract: Installation and servicing of a computer drive from outside the confines of a computer can be accomplished through use of a removable mounting structure on which one or more drives can be attached. After a drive is fixed to the structure, the assembly can be installed in a computer. Once installed, the assembly can be removed to access or replace the drive. The invention can be used to install and access drives, including floppy drives, hard disk drives, and CD-DVD drives, and a single structure may be able to accommodate drives of different sizes. The invention may be implemented in a small form factor computer or other PC.

Abstract: A mounting apparatus includes a mounting frame (60) secured to a chassis (10) and receiving a data storage device (100) therein. The data storage device includes a pair of posts (102) on each of opposite sides thereof. The mounting frame includes a bottom wall (62) and two sidewalls (64, 66). A pair of channels (80) is defined in the sidewalls respectively for receiving the posts of the data storage device. Each of the channels forms a stop end (81) and an inwardly projecting resilient member (82) spacing from the stop end. The resilient member of one of the channels has a slanted portion and a vertical portion. When a corresponding post of the data storage device rides over the slanted portion, the vertical portion stops the post from escaping from the channel. Thus the data storage device is retained in the mounting frame.

Abstract: An instrumentation console for personal computers is provided. The instrumentation console module is formed by a display panel, a circuit board (10) embedded with a plurality of control circuits, and a bracket (100). The control circuits through the connector ports (102-105) are coupled to the monitored internal components and monitoring devices such as cooling fans (19), audio output (21) and temperature sensors (14) for collecting essential operation data with respect to the host computer (20). The control circuits of the circuit board (10) collect the signals, and then output them to the visual indicators (11-13) on the display panel after appropriate signal conversion, instantly reflecting the operating conditions of the host computer (20) for early diagnosis of problems to prevent major problems from developing later.

Abstract: An apparatus for heat dissipation in a chassis housing an electronic system, and a method for implementing the same. The apparatus comprises a heat sink base for collecting thermal heat. The apparatus further comprises a fin thermally coupled to the heat sink base for dissipating the thermal heat. The fin is arranged in the chassis to direct air flow from a first direction, that is originally directed at said fin, to a second direction.

Abstract: A cooling system for a computer transfers heat away from a power supply and/or a central processing unit (CPU) in the computer. In an embodiment, heat is drawn away from the CPU to a heat sink by way of a heat pipe and a base member. In another, the heat sink is installed parallel to a power supply unit within the computer, and a fan is installed between the power supply and the heat sink.

Abstract: A function module with built-in heat dissipation device. The function module includes a first circuit board, a second circuit board, a first height-compensation heat spreader, a second height-compensation heat spreader, and a heat dissipation fin. The first circuit board has a first surface, a first and second device. The second circuit board has a second surface facing the first surface, a third device, and a fourth device. The first height-compensation heat spreader has a first face, contacting the first and second devices simultaneously, and a third face, opposite to the first face. The second height-compensation heat spreader has a second face, contacting the third and fourth devices simultaneously, and a fourth face, opposite to the second face. The heat dissipation fin is disposed between the first circuit board and the second circuit board.

Abstract: A method of assembling an Application Specific Integrated Circuit (ASIC) assembly with attach hardware includes adjusting or selecting a thickness of a load washer based on a target load to be applied by said attach hardware.

Abstract: A first printed circuit board is built including one or more openings configured to correspond to heat-generating devices attached to a second printed circuit board. The first and second printed circuit boards are aligned with each other and a heat sink, such that the heat sink is thermally coupled with heat-generating electronic devices on both the first and second printed circuit boards. Heat-generating devices are thermally coupled with a thermal pad on one or more of the printed circuit boards. The thermal pad is then thermally coupled with the heat sink. Optionally, the first and second printed circuit boards may be electrically coupled with each other through an electrical connector.

Abstract: A first printed circuit board is built including one or more openings configured to correspond to heat-generating devices attached to a second printed circuit board. The first and second printed circuit boards are aligned with each other and a heat sink, such that the heat sink is thermally coupled with heat-generating electronic devices on both the first and second printed circuit boards. Heat-generating devices are thermally coupled with a thermal pad on one or more of the printed circuit boards. The thermal pad is then thermally coupled with the heat sink. Optionally, the first and second printed circuit boards may be electrically coupled with each other through an electrical connector.

Abstract: A package for high frequency usages 10 has a notched area 16 on each longitudinal end of a substantially rectangular heat sink plate 11 for fastening the package to a base 20 with a screw. The package includes a joined member 17 formed by joining a surface of a ring-like frame member 12 made of a ceramic material to the longitudinal center of a surface of heat sink plate 11 and joining another surface to an external connection terminal 15. The other surface of heat sink plate 11 presents a curved protruding shape 18 bowing from its longitudinal ends toward its longitudinal center, so that curved protruding shape 18 causes at least an area of the other surface heat sink plate 11 that corresponds to an area dedicated for mounting a semiconductor device 19 within ring-like frame member 12 to make a close contact with base 20 when the package is fastened to base 20 by the screw at notched areas 16.

Abstract: The invention relates to a circuit arrangement in which each circuit component (15) is electrically connected to a conductor track (60) of a flexible conductor track support (6). The flexible conductor track support is arranged, together with the circuit components connected thereto, in a folded configuration inside an interior space (70) of a liquid-tight housing (7). This interior space is filled with a cooling liquid (8), which is not electrically conductive and is contact with all circuit components (15). This enables the circuit arrangement to be provided with a compact design while being relatively small, and all components, including the passive ones, are equally cooled. The invention is provided for use in lamp ballasts.

Abstract: It is an object of the present invention to propose a sheet computer that eliminates the drawback in operational speed caused by clock delays of a system clock and that is capable of high speed operation. In order to achieve this object, in the sheet computer of the present invention, a display circuit and peripheral circuits connected to the display circuit are fabricated on the same substratum and the peripheral circuits constitute an asynchronous system without global clocking. In the asynchronous system, processes constituting minimum function circuits perform mutual handshaking by channels and drive events actively or passively. The asynchronous system does not use global clocking and it is therefore possible to implement lower power consumption and a higher operational speed.

Abstract: A vibration damping feature for a sensor assembly, particularly a variable reluctance position sensor including a spool assembly, a harness assembly mechanically and electrically joined to the spool assembly, and a cap which sealingly encloses the spool and harness assemblies. The vibration damping feature preferably is in the form of a plurality of crush ribs provided on the periphery of an upper disk of the spool assembly adjacent the joints. The crush ribs contactingly abut the cap sidewall so as to positively locate, in a fixed relationship, the spool assembly relative to the cap adjacent the joints.

Abstract: An electronic module (1) for connection of sensors or actuators to a bus line, with an electronic unit, with several jacks (3) for connection of electrical lines (4), and with one jack (5) and one plug (6) for connection of two bus lines (7). The electronic module (1) is especially well suited for use in the hygiene or foodstuffs fields since there is at least one mounting foot (9) for mounting of the electronic module (1) on a support surface (10) and that the housing (2) is made such that the the edge area (14) of the housing bottom (12) is further from the support surface (10) than is the area of the housing by the mounting foot (9).