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7623001 |
Electromagnetic interference eliminating apparatus
An electromagnetic interference eliminating apparatus includes a multi-stage filter that is composed of inductors, capacitors and resistors, and an active filter. The multi-stage filter receives an...
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7589605 |
Method and apparatus to provide compensation for parasitic inductance of multiple capacitors
A coupled winding cancels parasitic inductance of first and second capacitors. In an EMI filter having common mode capacitors and a differential capacitors, first and second windings cancel...
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7561008 |
Filter package
A filter package includes a pair of spaced circuit boards; a magnetic core between the circuit boards; a plurality of windings on the core extending to at least one of the boards; and a plurality...
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7557676 |
Signal transmission circuit, electronic device, cable, and connector
A signal transmission circuit has first to fourth inductors, and first and second varistors. The first and second inductors are magnetically coupled to each other. The first varistor is connected...
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7528680 |
Electrical filter
An electrical filter has at least four terminals, two inductances and two capacitors. The first inductance is connected between the first terminal and the second terminal, and a second inductance...
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7498895 |
Noise filter, outdoor unit and air conditioner
A noise filter eliminates noise generated by a noise generating source in an outdoor unit in an air conditioner. Power is supplied from a power source to an indoor unit via the outdoor unit. A...
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7492240 |
Integrated capacitor and inductor
An integrated capacitor and inductor device for separate use as a capacitor and inductor. The device has a four-terminal arrangement having separate capacitor and inductor terminals, which allows...
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7459996 |
Stable filter and method for forming the same
A filter comprises a receptacle including a positive terminal pin, a negative terminal pin and a ground terminal pin; a filter box installed at one side of the receptacle; the filter box being...
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7453331 |
Polyphase line filter
A polyphase line filter includes a first filter branch between a first filter input and a first filter output, the first filter branch comprising a series connection of at least two inductances...
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7453330 |
Line filter
A line filter has a filter unit, which has an input and an output and also a current-compensated choke and a capacitance network. The choke has several phase windings on a common core. Each phase...
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7423490 |
Wideband high frequency chokes
An n-stage RF choke comprises a series connection of two or more inductors connected in series between a source and a load. The inductor closest to the source has the largest inductance and the...
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7403403 |
Noise suppressor
A noise suppressor capable of preventing degradation in an attenuation characteristic by a parasitic component so as to obtain a favorable attenuation characteristic is provided. The noise...
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7397322 |
Radiation noise suppression circuit for differential transmission line
A radiation noise suppression circuit for a differential transmission line includes a differential transmission line which has plus line signal wiring to which a plus line signal of a differential...
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7385466 |
Differential transmission circuit and common mode choke coil
A first transmission line for transmitting a first signal and a second transmission line for transmitting a second signal, which has the reverse phase of the first signal, are connected in series...
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7382216 |
Noise filter mounting structure
A noise filter includes a capacitor having a hot side input terminal, a hot side output terminal, a ground side input terminal, and a ground side output terminal. A circuit board includes a hot...
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7378900 |
EMI filter
EMI filter 20 includes input terminal Vin, output terminal Vout, resistor component R 1 and diodes D 1 and D 2 . Resistor component R 1 is composed of polycrystalline resistor component Rp and...
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7362162 |
Line filter
The invention is directed to a network filter that comprises at least one phase input and a protective conductor in which each phase input is connected via a filter inductance to a corresponding...
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7352594 |
Stage for rectifying a three-phase current
The rectification stage ( 18 ) having:
an autotransformer ( 40 ) for twelve-phase rectification; two rectifiers ( 50 A, 50 B) each of which is connected at the input to three separate...
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7348862 |
Modular connector with suppression of conducted and radiated emissions
An RJ 45 connector for unshielded CAT5 cable has electromagnetic-interference-suppression circuitry to meet the Class B conducted and radiated emissions standard. The connector comprises, in...
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7331698 |
Illumination device and medical imaging and examination device having an illumination device
An illumination device ( 1,10,20,41 ) for illuminating an examination room ( 33 ) of an imaging medical examination device ( 31 ) has illuminants ( 7,21,55 ), which emit light when energized and...
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7327035 |
System and method for providing a low frequency filter pole
Systems are provided for producing a low frequency filter pole. A first bond pad is coupled to a power source. A second bond pad is inductively connected to the first bond pad by a first bond wire....
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7295086 |
Dielectric component array with failsafe link
The invention includes an electromagnetic filter for a feedthrough conductor, and a method of making such a filter. At least two dielectric components are supported from a first side of a...
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7289006 |
Method and apparatus for implementing common mode cable noise suppression for medium range frequencies
A method, apparatus, and a localized in-line cable filter system are provided for implementing electromagnetic cable noise suppression. The localized in-line cable filter system includes at least...
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7256662 |
Common mode signal suppressing circuit and normal mode signal suppressing circuit
A common mode signal suppressing circuit comprises: a first winding ( 11 ) inserted to a conductor line ( 3 ); a second winding ( 12 ) that is inserted to a conductor line ( 4 ) and coupled to the...
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7200176 |
Transformerless ethernet controller
Transformerless ethernet controller. A method for isolating an ethernet controller, having a transceiver associated therewith, from a twisted wire transmission line is provided. The power supply of...
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7180389 |
EMI filter and frequency filters having capacitor with inductance cancellation loop
An electromagnetic interference (EMI) filter or frequency filters (e.g. bandpass or band reject filters) in which a capacitor has an inductance cancellation loop. Inductive coupling between...
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7164331 |
RF choke for cable system
An RF choke for minimizing hum modulation in a coaxial cable system that carries broadband signals along with high amperage 60 Hz AC power signals. The choke contains two conductors wound about a...
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7161446 |
Noise filter
A noise filter includes a laminate body including magnetic layers, line conductors and ground conductors, with one line conductor and one ground conductor alternately arranged in interfaces between...
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7148767 |
Bead type noise filter
A bead type noise filter according to the present invention is constituted by a magnetic core 1 formed of Mn—Zn ferrite having its resistivity increased so as to improve a high frequency...
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7142086 |
Ultra broadband inductor assembly
Systems and apparatuses for providing a broadband inductor assembly. One broadband inductor assembly includes a conical coil inductor having a broad end with radius r 1 and a narrow end with...
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7138898 |
Variable inductor
A variable inductor includes a conductor and an electroconductive member. The conductor has a coil and a pair of terminals electrically connected with the coil. The electroconductive member is...
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7116203 |
Circuit using choke coil and choke coil
A first winding of a choke coil is closely wound in a single layer on the outer periphery of a substantially cylindrical body portion of a first bobbin. A second winding is closely wound in a...
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7113057 |
Noise filter
A noise filter includes: a dielectric element formed of a stack of dielectric layers; a pair of first terminal electrodes disposed on one face of the dielectric element and each connectable to an...
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7102466 |
Method of reducing switching noise in a power distribution system by external coupled resistive terminators
Voltage fluctuations, especially due to a resonant effect of a power distribution system, result in serious timing skews in a high-speed digital system. Adding extra resistive loadings for coupling...
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7078988 |
Common-mode filter
A common-mode filter with a drum type core including a core portion and flange portions. Electrodes are provided on the flange portions and a pair of wires are wound on the core portion. The wound...
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7064629 |
Thin-film common mode filter and thin-film common mode filter array
A thin-film common mode filter is provided, comprising: a pair of magnetic plates; an upper coil conductor and a lower coil conductor formed between the pair of magnetic plates, spirally wound in...
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7061772 |
Electronic circuit with transmission line type noise filter
In an electronic circuit having an integrated circuit ( 110 ) having a power supply terminal, a noise filter disposed adjacent to the integrated circuit, and a printed board ( 101 ) having a...
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7057475 |
Ferrite choke
An apparatus to filter noise from being induced into a power line. In one a ferrite choke is disclosed that filters noise from being induced into a power line. The ferrite choke includes a tube of...
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7034637 |
Electronic component
An electronic component including a magnetic member comprising an iron oxide magnetic composition, a nonmagnetic member in contact with the magnetic member and including a glass ceramic composite...
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7015774 |
Noise filter and electronic apparatus having the same
A noise filter of the present invention includes an inductor and a resistor connected in parallel with each other. A power supply frequency current does not pass the resistor but passes through the...
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7012486 |
Miniature wideband bias tee
A miniature wideband bias tee that has a small package size. The bias tee has a low temperature co-fired ceramic substrate with a top surface and a bottom surface. A first inductor is located...
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7012485 |
Miniature wideband RF choke
A miniature wideband RF choke has a low temperature co-fired ceramic substrate with a top surface and a bottom surface. A first inductor is located within the substrate. Terminals are located on...
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6998939 |
Noise filter and electronic device using noise filter
Comprising a magnetic member 32 formed by laminating magnetic sheets 24, 28, 30, 31 a first impedance element 21 formed in the magnetic member 32, and a second impedance element 25 formed...
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6987431 |
Electromagnetic interference filter
An electromagnetic interference filter is disclosed. An inductance coil with four wires extended there-from, a ceramic capacitance board, a metallic film capacitance and a grounded wire are...
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6958666 |
Filtering circuit and power supply device equipped with same
The invention provides a filter circuit comprising inductors ( 6, 15 ) and capacitors ( 11 ) interconnected to form filter stages, the capacitors ( 11 ) being distributed over at least two printed...
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6940366 |
Coil filter and method for manufacturing the same
The present invention provides a coil filter suitable for surface mounting on an electronic circuit board by automatic mounting and capable of realizing wide band isolation excellent in...
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6930584 |
Microminiature power converter
A microminiature power converter includes a semiconductor substrate on which a semiconductor integrated circuit is formed, a thin film magnetic induction element, and a capacitor. The thin film...
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6927650 |
Common mode choke coil with vertically arranged edgewise windings of rectangular wire
A common mode choke coil comprises: a holder including side walls which have wire guide strips respectively formed at their sides and which have vertical guide grooves and horizontal flange...
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6917251 |
System and method for suppressing radio frequency (RF) radiation
An adjustable filter for suppressing radio frequency emission is disclosed. The adjustable filter comprises a ferrite material inductively coupled to a signal carrier, the signal carrier having...
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6911797 |
Multi-axes industrial processing machine
A multi-axes industrial processing machine with a multi-axes electrical drive system and at least two axle drives that have each an axle module and a built-in motor is disclosed. The machine...
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