Abstract: A three-dimension inductor structure formed in a conventional integrated circuit technology has a direction of magnetic field perpendicular to the normal direction of the substrate of an applied integrated circuit. Due to the direction of the magnetic field, the electromagnetic interference induced by the three-dimension inductor structure affects other components in the same integrated circuit slightly. The three-dimension inductor structure includes an N-turn coil. Each turn coil in the N-turn coil includes a first-level metal line, a second-level metal line and third-level metal line. The three levels of metal lines are separated from one another by isolating layers. Two nearby levels of metal lines are connected through via plugs in the isolating layers between them. The integral coil is accomplished by connecting the second-level metal line of the Nth turn coil to the third-level metal line of the (N+1)th turn coil.

Abstract: A wire-wound component to be mounted on a printed circuit board. The wire-wound component is formed by winding a wire on the body of the wire-wound component and by winding both end portions of the wire on terminals. The terminals and the body of the wire-wound component are formed as one unit by molding same from a heat-resistant resin material. The molded terminals, on which both end portions of the wire are wound, are inserted into the printed circuit board, and then connected to a circuit pattern on the printed circuit board by soldering.

Abstract: An arrangement for securing a current transformer to an electric utility meter housing. The arrangement includes a utility meter base plate which forms a portion of the electric utility meter housing. The utility meter base plate includes (i) a first central axis and (ii) a transformer receptacle defined therein. The transformer receptacle has an opening and a first retention surface. The arrangement also has a current transformer assembly including (i) the current transformer and (ii) a wall member affixed to the current transformer. The wall member defines an annular channel having a second central axis, and the current transformer is positioned within the annular channel. The transformer assembly also includes a tab having a second retention surface. The tab extends from the wall member.

Abstract: A device for electrically interconnecting the wire leads of various electronic elements within a microminiature package. A non-conducting base member having a plurality of electronic element barriers and wire lead through-holes is provided. The through-holes are generally located within the interior regions of the base element to minimize potentially detrimental field interactions or capacitive coupling between the leads and the external package terminals. During package assembly, the electronic elements are placed within recesses created within the base member by the aforementioned barriers. These recesses and barriers align the elements and help maintain electrical separation and uniformity during manufacturing. The wire leads from two or more elements are interconnected by twisting them together and inserting them into one of the through-holes.

Abstract: A coil assembly has a coil form on which the coil winding is arranged as well as a method of contacting the coil assembly on a support member. The coil assembly is easy to produce and also permits electrical contacting, namely, the provision of electrical contacts between terminals of the coil and an external circuit in a simple and reliable manner. The coil assembly has a coil form on which two contact feet are arranged, the ends of the coil winding being fastened to the respective contact feet.

Abstract: There is provided a choke coil having a sufficient noise eliminating effect against common mode and normal mode noises. The choke coil has two bobbins, a pair of windings wound around the respective bobbins, first and second magnetic cores which are each inserted in cylindrical body portions of the bobbins at one side thereof, and a support member for supporting the cores. The first magnetic core is in the form of the character B and made of a material having lower permeability. The second magnetic core is in the form of the character D and made of a material having higher permeability. A predetermined gap is maintained between the cores by a spacer provided on the top surface of the support member.

Abstract: An apparatus for facilitating mounting of an inductor assembly to a printed circuit board that is easy to assemble into any mounting scheme and which assures that an adequate clamping force to overcome vibration forces is provided. The apparatus includes an inductor assembly, a spacer assembly adapted to receive the inductor assembly, a wedge member for engaging one side of the inductor assembly and for distributing a clamping force substantially evenly about the inductor assembly, and a bushing disposed through each of the inductor assembly, the spacer assembly, and the wedge member, such that when a clamping force is applied to the wedge member, the inductor assembly is clamped to the spacer assembly.

Abstract: Two sets of a combination of an iron core formed of laminated strip-shaped electromagnetic steel plates and a coil are arranged in parallel, and these are abutted via core gap spacers against two iron cores formed of laminated trapezoidal electromagnetic steel plates, so that a square-shaped magnetic path is formed. Two outside iron cores of the four iron cores are coupled and fixed with metal fittings. With such an arrangement, the coil is divided into two, with increased surface areas of the coils and therefore an improved cooling characteristic. Further, since the electromagnetic steel plates used for the iron cores can be formed into simple shapes, electromagnetic steel plates of various sizes can be easily manufactured, so that iron cores of optimum dimensions can be provided, optionally depending on the type of the reactor.

Abstract: An arrangement for attaching electrical inductive components to a terminal block of a mounting base utilizes interlocking male and female plug-in connections. In instances where the electrical inductive components are measuring transformers, the arrangement accommodates higher electric currents in the area of several amperes seen in the primary winding because a galvanic connection is established simultaneously when the mechanical connection is made. Accordingly, the wiring of the primary circuit is made rapidly and without the possibility of faulty coupling. As the number of electrical inductive components increases, the arrangement disclosed provides compact construction.

Abstract: A method of assembling an electromagnetic device having a plurality of magnetic cores with substantially planar bases, by placing the magnetic cores upon a fixture adapted to align the planar bases of the magnetic cores in a coplanar relationship, applying a resilient adhesive along a core receiving side of a bracket, placing the bracket over the magnetic cores, pressing the bracket down upon the cores until the bracket's coplanar feet contact the fixture, removing the bracket and cores from the fixture, affixing a thermally conductive elastomeric pad along the coplanar bases of the magnetic cores, and fastening the coplanar feet to a thermally conductive plate so as to uniformly compress the elastomeric pad between the cold plate and the coplanar bases of the magnetic cores thereby providing a thermally efficient and shock resistant support mechanism.

Abstract: A choke coil exhibits sufficient capability in suppressing both common-mode noise and normal-mode noise while inhibiting an occurrence of magnetic saturation of a magnetic core. A terminal stand is formed of a frame and a magnetic plate. A split-type bobbin has a bobbin member made from a magnetic substance and a bobbin member made from an insulating substance. The bobbin is formed of a rod and three flanges provided for the rod. A pair of windings are reeled around the rod of the bobbin. Further, one side of an integral-type magnetic core formed in a hollow-rectangular shape is inserted into a hole formed in the rod of the bobbin. The magnetic bobbin member is placed outside a region surrounded by a closed magnetic path formed by the magnetic core. The magnetic bobbin member also forms a closed magnetic path together with the magnetic plate of the terminal stand.

Abstract: A membrane type integrated inductor includes an integrated inductor laid out on the upper plane of a membrane. The process to manufacture a membrane type integrated inductor includes the following steps: forming a thin dielectric layer at the outer portion of a substrate; forming a wire-wound integrated inductor thin dielectric layer with the known technique; defining an open window on the back of the substrate below the inductor through the backside etch; and forming a membrane type integrated inductor by using the thin dielectric layer on the silicon substrate as the etching stop. One embodiment uses silicon dioxide as the membrane layer. The low dielectric constant of SiO.sub.2 may be used to lower the power loss during the lay out of the circuit parts, to effectively raise the induction value, to lower the parasitic capacitance, to increase the resonance frequency, to decrease the volume of the chip which the inductor utilized, and to raise the quality factor.

Abstract: A line filter for a surface mounting device which eliminates noise on a power supply line, and more particularly a line filter for a surface mounting device in which not only a making to mount is easy because a magnitude of the filter is made to be small, but also a noise eliminating characteristic is improved better. The technical construction of the present invention is made such that three capacitor elements are mounted side by side to the capacitor mounting portion formed at top surface of the ferrite core, lead wires are inserted through the lead wire passing through openings among three capacitor elements mounted to the ferrite core, the ground terminal portion is formed by printing to both side surfaces of the ferrite core, and said capacitor, lead wires and ground terminal portion are connected by soldering and then the surface is coated; therefore, there are effects that a surface mounting is easy and a noise eliminating characteristic is excellent.

Abstract: A low profile, low cost, high performance inductor/transformer component having a wire coil within a core set which is disposed at least partially within a recess in a header. The header includes projections extending from it which form terminals when wire leads from the coil are wrapped around them.

Abstract: A high voltage transformer module (50) having a pair of high voltage substrates (64, 66) and a pair of low voltage substrates (62, 68) on which high and low voltage components are respectfully mounted. Mounted between the substrates are a plurality of transformers (92a, 92b, . . . 92n). In a preferred embodiment, each of the plurality of transformers is coupled to a full bridge rectifier (102a, 102b, . . . 102n) and the outputs of the rectifiers connected so that an output voltage produced by each transformer/rectifier pair is summed to produce a total output voltage for the high voltage transformer module. Electrical shorts are prevented within the module by fixedly mounting the substrates in the casing and by filling the cavities formed between the substrates with insulation having a high breakdown voltage. The components on the high voltage substrates are both physically and electrically isolated from the components on the low voltage substrates.

Abstract: In an inductor including a magnetic core on a top surface of a terminal table, a plurality of L-shaped conductors are inserted into the terminal table so that two ends of each of the L-shaped conductors are projecting from a side surface of the terminal table. The plurality of L-shaped conductors each have at least one stepped portion. One of the two ends which is on a higher level than the stepped portion acts as a winding terminal around which the wire is wound, and the other end which is on a lower level than the stepped portion acts as a mounting terminal used for mounting of the inductor. The winding terminal is projecting from a higher level of the side surface of the terminal table than the mounting terminal.

Abstract: A microwave oven includes a compartment in which a magnetron and a high-voltage transformer are disposed. The transformer includes coils disposed within a core. The core has holes formed in its underside, which are aligned with respective through-holes formed in a bottom panel of the compartment. Bolts extend upwardly through the through holes and into the holes to secure the transformer directly to the bottom panel.

Abstract: The unit is used to produce an electrical displacement-measurement signal in response to the internal movements of a core of magnetic material connected to a probe of a feeler for measuring linear magnitudes. The unit comprises, aligned within a tube (8), two coils (9), a spacer (10) of elastic material compressed between the two coils, and two end flanges (11) of the tube between which the two coils and the elastic spacer are gripped. The insertion of the elastic spacer between the two coils is provided in order to make symmetrical, in relation to the zero position of the system denoted by a median plane (P), the linearity error generated by the differing manufacturing dimensions of the elements aligned within the tube.

Abstract: A resistor-printed board built in a flyback transformer for a video display appliance with a reduced size as well as the resistance error of the printed resistors. A focus volume and a screen volume are printed on one surface of the resistor-printed board, and a bleeder resistor is printed on the other surface thereof, so that the size of the resistor-printed board is reduced, and a focus voltage and a screen voltage to be supplied to the appliance are stably adjusted, not affected by the printed error of the bleeder resistor.

Abstract: A chip-type electronic component comprising at least one electronic component element which is mounted on a substrate. The electronic component element is provided on its upper portion with a flat surface which can be engaged by a suction nozzle.

Abstract: A magnetic device includes: (1) a multi-layer circuit containing a plurality of windings disposed in layers thereof, the multi-layer circuit having inner lateral vias associated therewith, the inner lateral vias intersecting the layers of the multi-layer circuit, (2) a conductive substance disposed within the inner lateral vias and electrically coupling selected ones of the plurality of windings, (3) a magnetic core mounted proximate the plurality of windings and adapted to impart a desired magnetic property to the plurality of windings and (4) a compression-mounted electrical lead resiliently bearing against the conductive substance and electrically coupled to electrical conductors on the substantially planar substrate to conduct electricity therebetween, the plurality of windings and the magnetic core substantially free of a surrounding molding material to allow the magnetic device to assume a smaller overall device volume.

Abstract: The invention is a method and apparatus for calibrating a gap sensing probe (12) in a refiner having first (76) and second (80) grinding plates facing each other and supported by respective first and second plate holders, each grinding plate having a face (78, 82) defining a grinding gap (86). The gap measuring device, which is secured within one of the plates, includes a sensor probe (12) for measuring gap width data having a substantially cylindrical tip (14) with a flat frontal portion (16), an attached conical portion (18) and a longitudinal axis (20) therebetween. A cable (22) is electrically connected to the conical portion of the probe, for transmitting the gap width data. A protective sleeve (24) can be positioned around and contact the cylindrical tip, wherein the flat frontal portion of the tip is exposed through the sleeve.

Abstract: A transformer pad is disclosed for receiving and supporting a utility transformer and for collecting and containing leaking liquid from the transformer. The transformer pad includes a container in the shape of a box having an open top and providing a containment reservoir for containing liquid leaking from a transformer. A cover is provided on the open top, and the cover has a containment area onto which a utility transformer can be disposed and which includes one or more openings for receiving any leaking liquid from the transformer and directing the liquid to the interior of the container. A seal member is disposed on the cover adjacent the containment area for providing a seal around the periphery of a transformer.

Abstract: An electronic component mounting holder for surface mounting of an electronic component having a plurality of tape leads, includes a non-conducting three dimensional rectangular frame having vertical peripheral walls formed of nonconducting material for receiving an electronic component having a plurality of tape leads, the peripheral walls having a top peripheral edge and a bottom peripheral edge, a support ledge extending inward from inner surface of said peripheral wall for supporting an electrical component, a coil formed of foil windings having leads formed by extensions of said foil windings, a plurality of tape lead receiving areas formed in at least two sides of said bottom peripheral edge, said receiving areas each positioning a tape lead for surface bonding to a conductor on a PC board, a plurality of lead receiving recesses formed in corresponding sides of said top peripheral edge for receiving an outermost end of a tape lead, and a retainer for mounting in engagement with latch means in said frame

Abstract: A bobbin and core assembly includes a bobbin for supporting a pair of discrete windings. The bobbin includes a central body, first and second inner flanges fixed to first and second ends of the body, first and second tubular portions extending outwardly from the first and second inner flanges, first and second outer flanges fixed to outer ends of the first and second tubular portions, the inner and outer flanges defining first and second channels for receiving first and second of the windings. The assembly further includes first and second outer core members, each having a core portion extending from a base portion and between two leg portions generally parallel with the outer core member core portion, and first and second inner core members each having a core portion extending from a base portion and between two leg portions.

Abstract: The subject invention provides an inductor mounting assembly that is easy to assemble into any mounting scheme and which assures that an adequate clamping force to overcome vibration forces is provided.In one aspect of the present invention, an inductor mounting assembly is provided. The inductor mounting assembly includes an inductor assembly, a spacer assembly adapted to receive the inductor assembly, a wedge member for engaging one side of the inductor assembly and for distributing a clamping force substantially evenly about the inductor assembly, and a bushing disposed through each of the inductor assembly, the spacer assembly, and the wedge member, such that when a clamping force is applied to the wedge member, the inductor assembly is clamped to the spacer assembly.

Abstract: An electronic surface mount package provides a one piece construction package (with an open bottom) with one or more terminal pins molded into the package. Each of the pins have a notched post upon which a wire is wound which is from a toroid transformer carried within the package. Each of the posts are notched so their respective wires are separate from one another so as to prevent arcing. The case is opened at the bottom which prevents harm from expansion or cracking.

Abstract: A high voltage transformer module (50) having a pair of high voltage substrates (64, 66) and a pair of low voltage substrates (62, 68) on which high and low voltage components are respectfully mounted. Mounted between the substrates are a plurality of transformers (92a, 92b, . . . 92n). In a preferred embodiment, each of the plurality of transformers is coupled to a full bridge rectifier (102a, 102b, . . . 102n) and the outputs of the rectifiers connected so that an output voltage produced by each transformer/rectifier pair is summed to produce a total output voltage for the high voltage transformer module. Electrical shorts are prevented within the module by fixedly mounting the substrates in the casing and by filling the cavities formed between the substrates with insulation having a high breakdown voltage. The components on the high voltage substrates are both physically and electrically isolated from the components on the low voltage substrates.

Abstract: Two sets of a combination of an iron core formed of laminated strip-shaped electromagnetic steel plates and a coil are arranged in parallel, and these are abutted via core gap spacers against two iron cores formed of laminated trapezoidal electromagnetic steel plates, so that a square-shaped magnetic path is formed. Two outside iron cores of the four iron cores are coupled and fixed with metal fittings. With such an arrangement, the coil is divided into two, with increased surface areas of the coils and therefore an improved cooling characteristic. Further, since the electromagnetic steel plates used for the iron cores can be formed into simple shapes, electromagnetic steel plates of various sizes can be easily manufactured, so that iron cores of optimum dimensions can be provided, optionally depending on the type of the reactor.

Abstract: A common mode choke has a generally rectangular ferrite body for surface mounting on a printed circuit board. First and second spaced apart slotted openings extend vertically between the top face and the bottom face of the ferrite body. At least one pair of electrical conductors extend along parallel paths from the bottom face through the first slotted opening to the top face, along a portion of the top face, and back down through the second slotted opening to the bottom face. One pair of opposing side faces preferably has lower portions extending outwardly past a plane of the bottom face to thereby serve as a support to mount the bottom face of the ferrite body in spaced relation from the circuit board. The electrical conductors may then extend outwardly from the bottom face of the ferrite body for electrical connection through corresponding openings of a circuit board or extend laterally outwardly for electrical connection to corresponding portions of the circuit board in a gull wing configuration.

Abstract: An inductor fabricated for semiconductor use is disclosed. The inductor is formed with a multi-level, multi-element conductor metallization structure which effectively increases conductance throughout the inductor thereby increasing the inductor's Q. The structure of the inductor may also provide for routing the current flowing through the multi-level, multi-element conductors in a way that increases the self inductance between certain conductive elements, thereby increasing the inductor's total inductance.

Abstract: A coil device includes an insulating board, a drum core disposed on the board, the drum on which a coil is wound, at least one lead terminal passing through the insulating board from the bottom surface of the insulating board, the lead terminal projecting sideways, and an adhesive layer interposed between the insulating board and the drum core, the lead terminal projecting sideways positioned in the adhesive layer.

Abstract: A magnetic induction coil is mounted directly on and integrated with a semiconductor wafer containing integrated circuitry for a stable power source. Grooves are etched in the reverse face of the wafer substrate, an insulating film is applied, and conducting material fills the grooves, forming the coil. The coil conductors are connected with wiring conductors from the opposite side through protruding electrodes.

Abstract: A method and apparatus for reducing electromagnetic emissions from switching-type battery chargers safely and at low cost. The method and apparatus generally comprises enclosing the battery charger in a conductive metal case, electrically and physically isolating the low voltage, high current output components from the remainder of the circuitry, reducing the loop area of the output circuit, use of ferrite beads on various conductors, use of an output common-mode inductor wound within a ferrite core, use of inductors and transformers having foil windings, and use of a fusible resistor to protect internal circuitry. The battery charger includes a secondary assembly printed circuit board and a primary assembly printed circuit board which are supported in a spaced apart, substantially parallel arrangement.

Abstract: A ballast case for electronic fluorescent lamp. The ballast case makes good a deficiency of potting compound even when deficient amount of potting compound is charged in the ballast enclosure, thus to facilitate the potting compound charging work and to effectively prevent generation of noise caused by overvoltage of ballast, and to effectively protect the ballast and varieties of parts. The ballast case comprises a rectangular box type ballast enclosure charged with potting compound and having the ballast and the varieties of parts therein, and a rectangular plate type cover covering the ballast enclosure. The cover has an embossed section for making good the deficiency of potting compound. The embossed section is formed by embossing an area of flat surface of the cover so that the embossed section corresponds to sizes and arrangement of the ballast and the varieties of parts.

Abstract: An inductive electric component, in particular an electric transformer, includes a coil body having coil body flanges defining a winding space, and contact pin strips integrally formed onto the coil body flanges, the contact pin strips having extensions and having free ends with undercuts formed therein being limited outwardly by the extensions. A two-part magnet core has halves with center bosses to be pushed together on the coil body with the center bosses engaging the coil body and resting on the coil body flanges and on the contact pin strips. A spring cap is to be slipped onto the magnet core disposed on the coil body for retaining the magnet core halves on the coil body. The cap has a yoke with a middle region. The yoke is concave at least in the middle region, and the yoke has legs on two opposite sides and spring hoops on two other opposite sides. The legs each have detent protrusions locking into the undercuts with the spring cap slipped on.

Abstract: A pot core matrix transformer has a large number of connections from its secondary winding, the connections being fairly evenly distributed around the bottom surface. If these connections are terminated in a circuit board which has been optimized for good thermal conductivity, the temperature rise in the transformer will be small, even with very high current densities. Embodiments are shown for mounting directly on a heat sink and for surface mounting on a circuit card.

Abstract: An easy to assemble transformer for use in an electronics module of an electric vehicle. The transformer can be assembled from the "top down," thus alleviating the need to build the transformer as a subassembly unit. During manufacture of the transformer, windings are wound onto a thermally conductive coil form. Next upper and lower E-shaped core members are inserted into openings in the top and bottom of the form so that the side legs and the center legs of the E's touch and are in alignment. The thermally conductive coil form has a portion that touches a cold plate when the transformer is mounted on the cold plate. The transformer is further secured to the cold plate by a mounting bracket.

Abstract: A coil contains a winding part and a core. The winding part is formed of plural laminated sheets each having a winding pattern. Plural winding patterns are formed on at least one sheet. Each of the winding patterns has a different number of turns, and the winding patterns are formed around the core so as to be coaxial in the same winding direction. The winding patterns formed on the other sheets are connected via a through-hole, and an end of the winding pattern is connected to an input/output portion formed outside of the sheet.

Abstract: A common mode choke has a generally rectangular ferrite body for surface mounting on a printed circuit board. First and second spaced apart slotted openings extend vertically between the top face and the bottom face of the ferrite body. At least one pair of electrical conductors extend along parallel paths from the bottom face through the first slotted opening to the top face, along a portion of the top face, and back down through the second slotted opening to the bottom face. One pair of opposing side faces preferably has lower portions extending outwardly past a plane of the bottom face to thereby serve as a support to mount the bottom face of the ferrite body in spaced relation from the circuit board. The electrical conductors may then extend outwardly from the bottom face of the ferrite body for electrical connection through corresponding openings of a circuit board or extend laterally outwardly for electrical connection to corresponding portions of the circuit board in a gull wing configuration.

Abstract: A monolithic high-Q inductor structure is formed with multiple metalization levels in a conventional integrated circuit technology in which inductor turns utilize these multiple levels to reduce the inductor resistance. Inductors with Q values above five can be integrated with this approach at radio and microwave frequencies.

Abstract: A method of producing a composite component and a composite device which are small in size, high in the mass-production aptitude, and stable in the electrical characteristics. The composite component includes an inductor (1), coupling unit (3), and at least one circuit component (2) different from the inductor (1). The inductor (1) includes a coil support (12) having a coil winding portion (123) at the middle body thereof, and has a coil (11) wound around the coil winding portion (123). The coupling unit (3) is arranged such that one end of metal pieces (31 and 32) is fixed to one end face of the two end faces of the coil support (12) and the other ends of the metal pieces face each other across a space. The circuit component (2) is a chip component having electrodes (22 and 23) at two opposite ends of a base body (21), and is disposed between the metal pieces (31 and 32). The electrodes ( 22 and 23) are mounted fixedly to the metal pieces (31 and 32).

Abstract: A coil device which can accurately maintain the proportion of voltage caused by the change of the current flowing in a coil device, wherein the outside magnetic substance and the coil are fixed during an assembly of the coil device so that inside magnetic substance can be adjustably moved, or the outside magnetic substance and the inside magnetic substance are fixed so that the coil can be adjustably moved, or only the outside magnetic substance is fixed so that the coil and the inside magnetic substance can be adjustably moved therein. In addition, the coil device produces only small errors in inductance and a minimum leakage flux.

Abstract: A self centering coil (200) includes a coil section (202) and also having curved end section (206) and (204) at opposite sides of the coil section (202). The curved end sections are preferably substantially flat and in a plane which is parallel to the center axis (306) of the coiled section (202).

Abstract: In a device for positional fixation of a coil support in a cup-shaped formed casing part, wherein a closure part (4, 8) is attached to the cup-shaped casing part (1, 2, 22). Said closure part (4, 8) is disposed on the side of the coil support (10, 19, 21) , located remotely relative to the floor (22) of the cup-shaped casing part (1, 2, 22), in or, respectively, at the cup-shaped casing part (1, 2, 22). Tongue-shaped adjuncts (9, 33) are furnished at the closure part (4, 8). Said tongue-shaped adjuncts (9, 33) extend in a direction toward the coil support (10, 19, 21) and exhibit nose-shaped protrusions (13, 29) directed toward the wall of the coil support (10, 19, 21) . Projections (11, 31) or, respectively, recesses (12, 30), are formed like a lock toothing, and are furnished at the coil and are disposed toward the tongue-shaped adjuncts (9, 33).

Abstract: Core support blockings (10, 12) used to support a toroidal transformer (2) within a transformer housing (4) includes a pie-shaped body (28) having a second end (32) secured to the transformer core (14) using an adhesive (41). The body has adhesive flow regions, typically countersunk holes (42) passing through mounting flanges (38, 40) extending laterally adjacent the second end of the body. Electrical windings (26) can be wound on first end of the mounting flanges so to help mechanically secure the body to the core. A mounting stud (46), or other mounting element, is used to secure the transformer to a support bracket (8). Together the support bracket and core support blockings are used to support the transformer within the transformer housing.

Abstract: A self leaded holder for surface mounting of a circuit element to a PC board comprises a generally box-like support body having a cavity for mounting a circuit element, the support body having a base and a plurality of lead support members having a generally spool configuration extending generally horizontally outward from the support body adjacent the base, lead ports extending from the cavity through the sides, an inductance coil mounted in the cavity, and a lead extending from the coil via the lead ports to and wound a partial turn around each of the lead support members and disposed for surface bonding to a PC board.

Abstract: A method and apparatus for reducing electromagnetic emissions from switching-type battery chargers safely and at low cost. The method and apparatus generally consists of enclosing the battery charger in a conductive metal case, electrically and physically isolating the low voltage, high current output components from the remainder of the circuitry, reducing the loop area of the output circuit, use of ferrite beads on various conductors, use of an output common-mode inductor wound within a ferrite core, use of inductors and transformers having foil windings, and use of a fusible resistor to protect internal circuitry.

Abstract: A noise absorber provided with a fixture disposed at a flank of a body, thereby improving the positionability of the noise absorber and easy access thereto for handling. The body and the fixture are integrally connected by engaging a first engaging portion provided on the body with a second engaging portion on the fixture. When the body and the fixture are connected, the bottom of the body and the bottom surface of the fixture are at the same height, thereby coordinately supporting the noise absorber on a chassis or a printed board. Since the fixture is provided at the flank of the body on the same level, the height of the noise absorber as a whole is reduced. The noise absorber is thus advantageous for positioning in a location with limited space. Moreover, since the fixture to be handled is positioned at the flank of the body for easy access, the noise absorber of this invention can be easily fitted or disassembled.

Abstract: An electrical noise absorber comprising a magnetic body like ferrite attached around a flat cable and a fixing member. The fixing member comprises an inserting portion having a through hole for passing the magnetic body therethrough. Opposite walls defining the through hole extend in the direction, in which the magnetic body is inserted, to form a pair of cable fixing arms. Each of the cable fixing arms has a slot and projections for engaging the side edges of the flat cable. Engaging portions for engaging the periphery of the magnetic body inserted into the fixing members are provided on the top and bottom of the inserting portion. The flat cable and the magnetic body can thus be held immobile by the fixing members of the electrical noise absorber.