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JP3197530B2 |
To eliminate directivity by suppressing the deviation of its own inductance of inside and outside coils to the minimum limit, in a coil part constituted of the inside and outside coils. This coil part is constituted of a pot type core 5 ...
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JP3195373B2 |
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JP3196187B2 |
PURPOSE: To provide a structure of a small electromagnetic circuit while insulating a primary circuit from a secondary circuit. CONSTITUTION: An electromagnetic circuit comprises a coil layer 10 formed with multilayers of a plurality of ...
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JP2001210526A |
To provide a surfaced-mounted ballun coil, capable of preventing magnetic flux leakage of a twining lead part of a winding, where the outer terminals are flat and direct current resistance will not increase, and that can further be attac...
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JP2001211649A |
To provide a transformer for rectification for higher harmonies optimal as a low-voltage, large-current power supply wherein diodes of small capacity can be used by branching large current and fluctuation in output voltage can be reduced...
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JP3194546B2 |
PURPOSE: To realize high efficiency of power conversion efficiency of a transformer by realizing decreased height, improved thermal reliability and low loss. CONSTITUTION: The device has a multilayer substrate which is formed by laminati...
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JP2001203109A |
To reduce the difference in film thickness between a through-hole conductor and a conductor (land-section conductor) laid on an insulating substrate in a flat coil, having coil conductor filaments which are connected in series with each ...
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JP2001176741A |
To provide a highly reliable flyback transformer which can reduce the temperature rise of its primary coil as much as possible.This flyback transformer is constituted, in such a way that a hole section 3 is formed inside a primary coil b...
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JP2001176727A |
To solve the problems such as increase in the number of parts, securing of space for a substrate, and increase in cost, which still exist even though a phase distortion is lessened by adding an externally installed condenser to a flyback...
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JP2001167945A |
To provide a highly efficient, inexpensive, low-noise converter transformer which has a small size and is light weight and the output voltage characteristic of which can be improved by making the degree of coupling higher, and the temper...
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JP2001507527A |
A transformer circuit disclosed performs wideband impedance transformation (matching) and can be used for voltage step-up and step-down applications. The circuit disclosed is comprised of two transmission line transformers and two reacti...
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JP3171771B2 |
PURPOSE: To provide a protector for branching type communication for effectively removing flow-in noise at the time of using cable telephones in house-to-house co- viewing, safely using both telephones and televisions and being effective...
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JP2001143940A |
To provide a low profile electric transformer including at least two electric coils and one ferromagnetic base member. The base member is constituted in an integral structure for providing a core structure and plural terminal structures....
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JP2001136107A |
To provide an asymmetrical transformer for telephone line that prevents a structure of an echo cancellation circuit provided between a transformer and a transmission/reception head from being complicated by increasing a voltage in a tran...
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JP2001126928A |
To provide an antenna-tuning transformer, capable of uniformly removing image frequencies of a wide-receiving band. A tap (a) is drawn near from the maximum utilizing power level of a primary side winding wire N, while performing impedan...
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JP3163945B2 |
PURPOSE: To provide a flat laminated transformer reducing in a board mounting occupying area while decreasing a loss and a height with high coupling without noise disturbing at the exterior of the transformer in the transformer used for ...
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JP3159195B2 |
To provide a winding common mode choke coil, wherein the mechanical strength of a core member is high for inspection of a winding state and high in reliability. A core member 20a comprises core part 11, around which coils 22 and 23 are w...
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JP3158500B2 |
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JP2001110653A |
To decrease a winding wire area and height of a transformer. This transformer is provided with a pair of iron cores as the media for electromagnetic induction, a pair of substrates for forming one flat structure, while being installed up...
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JP2607179Y2 |
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JP3151619B2 |
To solve problems of weight, costs and welding inharmony due to a large choke having a fixed gap or a small choke having a stepped gap by making up of a high magnetic permeability core having a region of a cross sectional shape with two ...
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JP2001085235A |
To obtain a transformer in which the winding capacitance of a winding wound in a multilayered structure is suppressed lower than the conventional example. The whole winding capacity of a secondary winding 10 is reduced by reducing the el...
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JP2001076936A |
To facilitate mounting chips in the mutually inductively coupled condition. A chip inductor 1 comprises a flux direction mark 105 on a chip body 106 for indicting the flux direction 104 of a coil formed in the chip body 106, and two chip...
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JP3147826B2 |
To increase the power conversion efficiency, by arranging first and second faces in inverse winding order in a sheet type transformer for minimizing the eddy current. So-called EI cored transformer 10 is composed of an E type core 15 and...
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JP3144913B2 |
PURPOSE: To obtain a thin type transformer which stably operates at a high frequency and has little loss, by making a part of a plurality of wires a primary winding and making the residual part a secondary winding. CONSTITUTION: Two insu...
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JP3141562B2 |
PURPOSE: To improve the structure of the constituent elements of a thin film tansformer and to realize the thin film transformer capable of improving the energy conversion efficiency without enlarging its occupation area. CONSTITUTION: I...
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JP2001057310A |
To improve the grounding property of the mounting of a transformer on a board and prevent the continuity failure of its mounting solder, by making spring-form one-portion of each terminal of its bobbin, and by making thin one-portion of ...
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JP3135941B2 |
PURPOSE: To reduce an increase of conductor resistance at high frequency and to improve usable frequency and efficiency in a thin film transformer and a thin film inductor. CONSTITUTION: A structure wherein thin band-like primary lead wi...
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JP2001501407A |
The invention concerns a modular electronic control, specially a store programmable control and/or monitoring of a technical process. The energy transmission (electricity supply for the individual modules) and the information transfer (d...
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JP2001024901A |
To improve a raster regulation or a contortion being a distortion on a screen owing to a high voltage fluctuation by detecting the load fluctuation of the high voltage, changing over a resonance capacitor and supplying the stable high vo...
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JP2001023826A |
To suppress changes in the focus voltage, even if the screen voltage is changed after fixing the focus voltage.A resistor 8 is connected to a focusing output terminal. To one end of the resistor 8, voltage-dividing resistors 14, 15, 17 v...
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JP2001023827A |
To easily and properly manufacture a coil with a minimum number of components.A coil R has a structure where two or more independent windings 1, etc., are disposed in parallel so that the winding centers lie on nearly the same line and m...
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JP2001015345A |
To obtain a variable intermediate voltage generating device which can automatically adjust a screen voltage with ease and superior reliability.A diode 32 is connected to the winding start of a secondary winding 31 of an FBT and a voltage...
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JP2001015344A |
To obtain a variable intermediate voltage generating device which is adaptive to a wide focus range by one kind of ceramic substrate, even when a transistor having relatively low dielectric strength is used.A variable resistance 2 is con...
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JP2001006941A |
To reduce the size of high frequency transformer by forming a coil pattern within a dielectric material multi-layer substrate using a strip line and then laminating a plurality of patterns.A high frequency transformer is formed by lamina...
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JP3122561B2 |
PURPOSE:To provide a flyback transformer which can improve the insulation of a focus, screen output connector part and which is easy to rationalize its production. CONSTITUTION:Conductive rubbers 28' and 28'' in contact electrically with...
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JP3120985B2 |
A network transformer, in particular for coupling the antenna of a nuclear spin tomograph, consists according to the invention of two conductor track structures (10, 11) covering the same area, which are arranged on the opposite flat sid...
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JP3116586B2 |
PURPOSE: To simply configure an inexpensive and small sized flyback transformer by eliminating a high voltage capacitor from a 2-fold voltage rectifier circuit. CONSTITUTION: Secondary windings of a flyback transformer are consisted of p...
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JP2000330671A |
To reduce the energy loss in standby mode and to reduce the mount area of the unit and make the unit small-sized by using the power-off signal outputted from an engine controller to a printer even as a signal for frequency control. When ...
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JP3109839B2 |
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JP2000315608A |
To be able to easily enhance an inductance of a transformer magnetic core which is used for such a component as a filter, an ISDN transformer and so on assembled in several communication devices. Bonding parts 5a and 5b are formed on two...
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JP3108538B2 |
PURPOSE: To obtain a flat transformer wherein it gains a large inductance value and it can be manufactured easily. CONSTITUTION: Patterns for a primary coil 11 and a secondary coil 12 are buried and installed in a groove part 16 in a mag...
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JP2000311816A |
To make a coupling plate, which extends almost in parallel to a flat-plate-shaped wire-wound part to connect two flanges, thinner, by molding it into a body with a magnetic material, and bifilar-winding two coils. A core 10 is so formed ...
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JP2000306729A |
To provide the stacked coil device which can be manufactured through a filming process for a metal film composed of two layers, has a large electromagnetic coupling coefficient, and is reducible in manufacturing cost. A 1st and a 2nd coi...
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JP3102146B2 |
PURPOSE: To prevent the generation of a dielectric breakdown or the like due to the contact of a protruding fitment to other components in the interior of a fly-back transformer. CONSTITUTION: A protruding fitment 13 provided with acute ...
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JP2000294424A |
To obtain a core which is easy to assemble, additionally does not generate distortion of a thin plate while inserting into a bobbin and does not generate a defective property by forming several layers of the end of the core butting short...
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JP3096542B2 |
The invention comprises an adapter which enables an unbalanced baseband video signal (at input port 31) and one or more baseband audio signals (A,B at input ports 32,33) to be transmitted over unshielded twisted pair wiring (connected to...
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JP2000277335A |
To provide a common-mode choke coil which can suppress common- mode current and has little influence on transmission signals, even in a high-frequency (several hundreds of MHz to several GHz). This coil is provided with a inscribed diele...
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JP2000277344A |
To form a shape, in which a winding start terminal and winding end terminal are exposed at the opposite position across a ring by a method, wherein the wire is returned to the start position of winding by way of the central space of the ...
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JP2000277345A |
To obtain a superior frequency characteristic, and miniaturize and thin in both analog and digital frequency bands. A magnetic material constituting a pulse transformer magnetic core 1, capable of being used in both frequency bands of an...
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