Abstract: A transformer with interference suppression includes a primary winding (1) with a first primary coil (27), one end of which is connected to a primary reference point (19), and also includes a second primary coil (39). The transformer has a secondary winding (3) with a secondary coil (33), one end of which is conductively connected to a secondary reference point (21). All of said coils (27, 39, 33) are solenoid coils which are concentrically arranged on a coil former (5) with intermediate electrical insulating means (29, 31; 29, 37) so that the first primary coil (27), across which the voltage drop amounts to U.sub.1p, is capacitively coupled to the secondary coil (33) across which the voltage drop amounts to U.sub.1s. The capacitance between these two coils has the value C.sub.1. The second primary coil (39), across which the voltage drop amounts to U.sub.2p, is capacitively coupled to a secondary coil (33) across which the voltage drop amounts to U.sub.2s.

Abstract: A noise-shielded transformer which suppresses electrical noises by absorbing conductible electrical noises that flow into the power line to cause interference, consisting of a gapless-type toroidal core, a primary winding and a secondary winding uniformly wound after dividing the entire magnetic path of the toroidal core in two, and conductive plates mounted to wrap the primary winding and secondary winding, respectively, wherein conductive plates are mounted in the gap of the toroidal core to magnetically isolate the primary winding and the secondary winding, conductive plates are mounted outside the gap of the toroidal core and the gapless-type toroidal core has a configuration of continuously winding steel shield of directional silicon.

Abstract: A common-mode choking coil comprises a closed magnetic path core which is formed, for example, by combining two U-shaped cores. Two coils wound in opposite respective directions are mounted on two legs of the closed magnetic path core. These coils are formed by single-layer winding. That is a conductor wire is wound in only one layer, for example, around a bobbin. Then, the bobbins whereon the conductor wire is wound are mounted on the two legs of the closed magnetic path core. For the conductor wire used for the coil, a material having a spring property may be used. Utilizing this spring property of the coil, the closed magnetic path core can be held together by the coil, whereby the two U-shaped cores can be combined. Also, the two coils are identified by colors according to the winding direction of the respective conductor wires.

Abstract: An ignition coil for developing spark plug firing voltages. The magnetic current for the coil comprises an axially extending core that joins axially spaced annular parts. The core and parts can be formed of iron particles in a binder of electrical insulating material. A primary winding is disposed about the core and a secondary winding is disposed about the primary winding. An axially extending circular part that is formed of magnetic material is positioned to provide air gaps with outer surfaces of said annular parts. The circular part forms a shield that increases the capacitance of the secondary winding. The total stored magnetic energy does not vary substantially with variations in air gap length. The cross-sectional area A of the air gap is large as compared to the length L of the air gap so that the ratio A/L does not vary much with variations in L.

Abstract: A flyback transformer includes a film wound unit which is composed of a first and second film sheets on which a first and second conductors are formed. A primary coil is formed by the first conductor, and a resonance capacitor which is connected to the primary coil is formed between the first and second conductors. A plurality of secondary coils are sequentially formed, and rectifying diodes are respectively connected between the respective secondary coils. Each of the secondary coils may be a metal plating coil.

Abstract: A noise suppression inductor including a bobbin having a spool divided into a plurality of spool portions, a core mounted on the bobbin, at least one coil wound around the spool portions into a plurality of coil portions and a plurality of terminal pins connected to opposite ends of the coil, in which the coil portions have different winding widths such that stray capacities produced at the coil portions are made different from each other, whereby the noise suppression inductor has a plurality of self-resonance frequencies.

Abstract: A power supply in accordance with the present invention includes a chassis (26) associated with the power supply; a voltage source (12) providing an output voltage varying at a fundamental frequency and having a noise component changing as a function of time at a frequency above the fundamental frequency; a filter (41) including an inductance (44) in series with the voltage source for attenuating the noise component and outputting the fundamental frequency; and a cooling apparatus (42) thermally and capacitively coupled to the inductor for conducting heat from the inductor and shunting the noise component to the chassis.

Abstract: The invention relates to an electric component with inductive and capacitive properties, which is wound in coil-like manner in turns and winding layers out of two conductors being electrically insulated from one another, a dielectic being disposed between the conductors. For increasing the capacitance values to be obtained with this component and for achieving a high miniaturization possibility at simple construction, it is proposed in accordance with the invention that both conductors (1,3) are combined into one winding wire (WD) out of a core conductor (1), a dielectric (2) surrounding the latter and an external conductor (3) at least partly surrounding the core conductor (1) and the dielectric (2). Preferably a traditional round wire is used as core conductor. Said electric component can be used in manifold ways. The electric properties are very good.

Abstract: Improvement for power supplies include a protection circuit having a first L-C filter network, a second L-C filter network and a voltage clamping device such as a zener diode which is disposed between the two L-C filter networks. The protection circuit reduces the magnitude of overvoltage input transients which might otherwise damage the internal components of the inverter. For generating very high output voltages, the power supply includes a high voltage transformer and a Crockoft-Walton voltage multiplier coupled thereto. The high voltage transformer is coupled to an inverter through a coupling circuit which includes a capacitor in one leg of the primary winding and a parallel connected resistor/inductor in the other leg of the primary winding of the high voltage transformer. The high voltage transformer is formed of a multi-sectioned bobbin which is defined around an axially extending core.

Abstract: A foil-roll electronic part and a process of producing the same. The part produced in this process includes: a lead frame having a plurality of leads; at least a belt-shaped conductive foil connected at one end or thereabout to a given lead of the lead frame and connected at the other end or thereabout or the intermediate portion thereof to the other lead; and at least two insulating films interposed between the belt-shaped conductive foils; whereby the electric part is formed by rolling the belt-shaped conductive foils and the insulating films on the lead frame as being a spool. According to this invention, the foil-roll electronic part wherein lead intervals can be accurately positioned, the production thereof is suitable for the bulk production, the electronic part is excellent in electric characteristics and easily, actually mounted on a printed circuit board.

Abstract: A transformer includes first and second coils which are generally cylindrical and having an outer circumferential surface, an inner diametral surface and first and second axial extremities. Shielding is disposed around the coils comprising a web shaped metallic, non-magnetic, electrically conductive generally rectangular first member. The first member has a first portion extending about substantially the entire inner diametral surface of the coils and has a plurality of tab shaped portions extending respectively about a substantial portion of each of said first and second axial extremities. A second non-magnetic, electrically conductive metallic member extending over substantially the entire circumferential extent of each coil.

Abstract: In a high-voltage transformer of particularly small size comprising a magnetic circuit and a coil shell on which is wound a secondary winding consisting of one or a number of separate secondary coils, each secondary coil is contained within a channel closed by an insulating ring made up of two segments. The two ring segments are assembled around the channel in a movement performed in the same plane as that of the channel.

Abstract: A noise suppression inductor including a bobbin having a spool divided into a plurality of spool portions, a core mounted on the bobbin, at least one coil wound around the spool portions into a plurality of coil portions and a plurality of terminal pins connected to opposite ends of the coil, in which at least one of the coil portions is composed of a first part having one or two winding layers and a second part having one winding layer and at least another one of the coil portions has not less than two winding layers.

Abstract: A pulsed transformer capable of providing up to 500 kilovolt or higher, 10 nanosecond rise time, and 1000 joule or higher pulses comprising non-conducting or insulated transformer cores each separated by conductive grading rings wherein n coaxial cables in combination with the grading rings are connected in parallel at one end and in series at their other ends. The transformer may function as either an inverting or non-inverting transformer. In a transformer with n cables, if a pulse voltage of V is applied to the input, an output voltage of nV will appear at the output. The cores function to isolate the coxial cables and permit them to be connected in series at their one end. Weight may be minimized by operating the transformer in gaseous Freon rather than transformer oil.

Abstract: The reduction of non-monotonic degradation characteristics induced in the output signals in high-power applications of a transformer which has a primary winding and n secondary windings which have a total of N turns, where n and N are integers, is accomplished by replacing the n secondary windings with m replacement windings, where m is an integer less than n. When the replacement windings have a total of N turns, they produce an output signal with reduced degradation normally caused by stray capacitance and inductance leakage in the secondary windings.

Abstract: An electrodeless low-pressure discharge lamp having a lamp vessel (1), a core (3) of magnetic material, a first winding (7) arranged to surround the core and connected to a high-frequency supply unit (4), one of the lead-in wires of this winding being electrically connected to a lead-in wire of a second winding (11) with a free end (12), while during operation of the lamp the potential drop between the ends of the second winding is substantially equal to the potential drop between the ends of the first winding and the potential drops in the two windings vary in opposite senses. Interference currents at the supply mains to which the lamp is connected are then strongly suppressed.

Abstract: A power supply with automatic arcing control and overload protection includes an electronic switch in an oscillator circuit with a primary winding of a step-up transformer. A high voltage, secondary winding of the transformer is loosely magnetically coupled to the primary winding. The frequency of oscillation of the oscillator circuit decreases as a load impedance across the secondary winding of the transformer decreases. In the case of arcing or shorting of an output circuit of the power supply the frequency of oscillation decreases below a pass band of the output circuit, thereby reducing the output current of the power supply.

Abstract: An electric resonator includes first and second pluralities of conductors which are disposed in side-by-side relationship to form a first layer of alternating first and second conductors. Additional layers of alternating first and second conductors are disposed atop the first layer such that each conductor of one of the pluralities is horizontally and/or vertically adjacent to conductors of the other plurality. The resulting resonator reduces undesirable capacitance between various conductors thereby increasing the quality factor, or Q, of the resonator.

Abstract: A transformer having a molded coil which can stably sustain an electric-shock free function for a long period of time. The transformer has a grounded conductive shield layer on the surface of the molded coil. The shield layer is composed of a plurality of segments so that a stable bonding of the shield layer to resin is kept for a long period of time, with the respective segments being grounded by a conductor.

Abstract: A better filtering effect for disturbing harmonic currents in a high-tension direct current transmission installation is described. A balancing winding is provided between a primary winding as an outer winding and a secondary winding in a 3-winding transformer with a transformer core. The distances between the balancing winding and the primary winding and the secondary winding, respectively, are selected such that the equivalent reactance of this balancing winding is equal to or less than zero. A second balancing winding can be provided as the inner winding in a series with the first balancing winding. In the case of a 4-winding transformer, two winding arrangements are provided with two parallel-connected primary windings as the outer windings, with a separate secondary winding for each and a balancing winding for each between the primary and secondary windings, the two balancing windings being connected in series.

Abstract: A transformer structure is provided having three cores of laminated magnet material positioned to define two transformer winding carriers. In the preferred embodiment, each core is a pair of C-shaped sections arranged in mouth-to-mouth relationship so as to form pairs of legs joined by connecting portions. A first leg of the first core and a second leg of the second core delimit one of the transformer winding carriers. A third leg of the second core and a fourth leg of the third core delimit the other transformer winding carriers. The winding includes a primary transformer winding having at least a first coil and a second coil, and a secondary transformer winding having at least a first coil and a second coil. The first coils of the primary and second winding are wound along the first transformer winding carrier while the second coils of the primary and secondary transformer windings are wound along the second transformer winding carrier.

Abstract: A pulse transformer for use in a switching power supply having primary and secondary windings wound concentrically around a common core and two electrostatic shield foils interposed between the primary and secondary windings with an insulator disposed between the electrostatic shield foils.

Abstract: A transformer winding characterized by a plurality of electrically connected disc or pancake coils disposed around a core leg in which the inner and outer edges of adjacent coil pairs are radially offset, enabling the insulative members which surround the edges of each such coil pair to be curved and thus more closely conform to the equipotential planes of the dielectric field.

Abstract: A disc coil winding of interwound coils is formed of winding conductors covered with normal insulation, the winding having a radially inner and a radially outer surface. A plurality of the coils are disposed at an input to the winding, and have respective turns thereof located at the inner and the outer surface of the winding as well as respective turns thereof located radially adjacent thereto. Supplemental insulations are provided for reinforcing the normal insulation, the supplemental insulations extending from respective starting locations both between the turn located at the inner surface and the turn adjacent thereto as well as between the turn located at the outer surface and the turn adjacent thereto for protecting at least one edge of the respective turns. The coils have a turn capacitance between respective turns thereof free of the supplemental insulations which is greater than the turn capacitance between the respective turns thereof provided with the supplemental insulations.

Abstract: A current transformer having at least one ring-shaped core with a secondary winding mounted thereon, and a primary conductor, located within its casing. An inner tube is provided between the ring-shaped core and the primary conductor, one end of the tube being electrically connected to the casing and its other parts electrically insulated therefrom. A cylindrical, electrically conductive screening shield at least partially overlaps the inner tube and is electrically connected to the casing on the side of the ring-shaped core which is distal from the electrical connection between the casing and the inner tube, while the other parts of the shield are electrically insulated from the casing. This overlap forms a short-circuit loop for any steep progressing wave which is generated when switching on a potential-free part of the circuitry, or when due to an interruption, a small capacitive current breaks off.

Abstract: A transformer with twelve cores, a first six arranged in parallel rows of three, a second six, in parallel rows of three at right angles to the first six and positioned between the first and second, and second and third cores of each row of the first six; four coil assemblies each comprising a primary winding and a secondary winding, each of the coil assemblies embracing legs of four cores, the primary and secondary coils being electrically connected in parallel to like coils in other coil assemblies in a 180.degree. out of phase connection. Preferably, each coil assembly includes a capacitor coil, and the capacitor coils are series connected to one another at opposite corner poles so that each capacitor coil voltage is added to each other capacitor coil, the first and fourth of said capacitor coils being electrically connected to different sides of the line voltage, and the second and third of said capacitor coils being electrically connected in series to a capacitor.

Abstract: A toroidal transformer is provided with an inner winding electrostatic shield formed by bringing together two conductive annular cups having a generally U-shaped radial cross section. The widths and radii of the sidewalls of these cups are dimensioned such that one of the sidewalls of the first cup forms a conductive interference fit with the corresponding sidewall of the second cup, while the other sidewall of the first cup is separated from the corresponding sidewall of the second cup by a gap, which prevents the shield from becoming a shorted turn. The shield formed by these two cups is placed around a wound core and a second winding is wound over the shield to form a transformer.

Abstract: The transformer is wound with multiple layers of the same number of turns extending across the bobbin and with the leads from each layer brought out through each end of the bobbin. The individual layers are wound with each turn immediately abutting the preceding turn and successive layers are wound on top of each other so that the turns of the upper layer lie in the furrows or valleys between the turns of the layer immediately below. The distance between the wires of the underlying and overlying layers normal to the bobbin surface is less than the diameter of the wire, and to overcome this difficulty each lead is arranged in echelon with the lead above and below it. Slot configurations for bobbins of both flat sided and cylindrical cores are developed.

Abstract: A transformer comprising a plurality of conductive screening foils located between the core and the windings and between the primary and secondary windings. In order to prevent eddy current losses in the screening foils, at least the first screening foil is made of a soft-magnetic material.

Abstract: An improved inductor-capacitor device and a power regulating circuit incorporating said improved device, the improvement including integrally formed terminals on the conducting foil which are supported by the dielectric insulating material that separates the strips of conducting foil, and the setting of the foil windings in a rigid structure by interlaying between each foil strip an insulating strip of dielectric material that is coated with a high temperature thermosetting or thermoplastic bonding cement having physical properties similar to the dielectric material. Two improved inductor-capacitor devices are interconnected in a power regulating circuit for a discharge lamp device wherein their separate capacitive and inductive reactance are combined, each device being connected in such a manner to more uniformly distribute current through the conducting layer of each device.

Abstract: An output transformer, especially useful to couple a balanced output stage to an unbalanced load, employs first and second primary winding halves, which have their "center taps" physically offset, and wherein the windings are wound coextensively for some but not all of their length. The secondary winding is wound coextensively with one or the other of the two primary halves, thereby improving the coupling and reducing leakage inductance and also reducing the interlayer volt amperes and thus reducing interlayer capacitance.

Abstract: In a transformer of the type having spirally wound copper foil windings, capacitive signal transfer between the primary and secondary windings is avoided by placing the turns of the winding having the smaller number of turns in pairs and placing adjacent each of said turns the turn of the other winding having the same number as the said turn in the sequence of current passage.

Abstract: A flyback transformer includes a high voltage winding with a first rectifier coupled to the high voltage lead and a second rectifier coupled to the ground return lead. The rectifiers are poled in the same direction to conduct beam current and block the DC current path in the winding during the trace interval. The distributed capacity forms a capacitive voltage divider and developes an intermediate DC voltage in the high voltage winding. The intermediate DC voltage developed at an intermediate AC null terminal of the high voltage winding is selectively adjusted by structure which is selectively capable of adding sufficient distributed capacity to appropriately change the capacitive voltage division ratio.

Abstract: The present invention discloses an improved electrode for use with apparatus employing radio frequency energy for deep heating of materials. In particular, it is adapted for the medical treatment of living animal tissue by hyperthermia. The electrode comprises a single loop turn having capacitance associated therewith so as to resonate the electrode for maximum power transfer thereto. The electrode causes a field to be generated within the annular region enclosed by the electrode comprising a plurality of concentric, substantially equally powered lines of force in which the living tissue to be treated is disposed. The electrode finds particular use in the treatment of deep seated cancers in patients.

Abstract: A current transformer of the top core type for high voltage application is formed by a column of insulating material supporting a metal housing including an insulating body through which the primary conductor of the transformer passes. A plurality of cores each including a secondary winding of the transformer are enclosed in a grounded metal casing and extend around the central portion of the insulating body to form annular regions between the metal core casing and the metal housing. The dimensions and weight of the top part of the transformer are reduced by utilizing insulated metal rings provided for obtaining a uniform voltage distribution in the annular regions between the core casing and the housing. The insulated metal rings consist of metal foil between plates of insulating material and may completely fill the annular regions.The core casing includes planar end pieces abutting the insulated metal rings.

Abstract: A distribution type delay line particularly adapted for use in a color television receiver and for mass production is disclosed. A bobbin with several axially spaced flanges defining several winding or coil slots therebetween is combined with a circuit of series-connected grounding electrode windings or coils each wound in each slot and each consisting of a predetermined number of turns of insulated wire and/or a circuit of series-connected shield windings each wound in each slot and each consisting of a predetermined number of turns of insulated wire, and a circuit of series-connected signal windings each wound in each slot outwardly and/or inwardly of the grounding electrode and/or shield windings and each consisting of a predetermined number of turns of insulated wire, the grounding electrode and shield windings being wound in the opposite directions so that the magnetic fluxes induced thereacross may be cancelled by each other.

Abstract: An electrosurgical unit for use in tissue cutting or coagulation procedur A vacuum tube oscillator operating in push-pull relationship generates RF oscillations which are extracted across a balanced coil transformer, the secondary of which is ungrounded. Forceps are provided to be connected across the output of the transformer for producing an isolated voltage for use in sealing off bleeding blood vessels. A handpiece is also provided for connection across the transformer output for selectively producing a cutting voltage or a coagulation voltage. An intensity control circuit is capable of connection in the power supply to control the output voltage. A pulse modulation unit is capable of being connected at the input of the oscillator to control the "on" time of the oscillator.

Abstract: Disclosed is an induction heating apparatus wherein the tank circuit and heater coil are combined in a single unit which is separated from the power supply. A coil forms both the inductance element of a tuned circuit and the primary winding of a current transformer. The inductance element is associated with a secondary winding formed by a metal sheet of material wrapped about the inductance element and can form both the capacitance of the tuned circuit and the secondary winding of the current transformer. A heat transfer unit is connected directly to the secondary winding formed by the single turn of sheet material and is used to provide inductive heating to a work surface to which thermally activated adhesives are to be secured. The induction heating unit is formed as a hand-held portable gun and includes the electronic circuitry in a rear body portion of the gun and the heat transfer unit forms a nosepiece for the gun so that precise local areas can be heated.

Abstract: A dampened choke coil structure having a ferromagnetic core and a winding of wire disposed about the core to form a choke coil. A second winding of substantially higher resistance material is wound generally parallel to the choke winding either inside or outside thereof. The number of turns of the two windings differ by more than 25%. In this way, parasitic capacitances are caused to have a decreased effect on the choke coils.

Abstract: An improved inductor arrangement suitable for a wide variety of applications, but particularly advantageous for use in the design of ferrite antenna structures intended to operate at the relatively higher frequencies. The disclosed inductor arrangement includes a spiral inductor or coil divided into a plurality of wire segments, respective pairs of which are interconnected by individual capacitance elements to form a plurality of series-resonant circuits at a particular frequency or range of interest. The capacitance elements may be provided in the form of discreet components or by a suitable electro-deposition process in the interests of further optimizing size factor. The number of individual wire segments and resonating capacitance elements may be selected to provide a given terminal impedance for the inductor arrangement within a certain limited design range.