54results about How to "Avoid electromagnetic noise" patented technology

A method for manufacturing a touch panel integrated display device including a touch panel and a display panel that are integrally stacked, with a light-transmissive sticky layer interposed therebetween, includes the steps of (a) forming a transparent conductive layer by transfer onto a display surface of the display panel, with an adhesive layer interposed therebetween, by using a transferable film having the adhesive layer and the transparent conductive layer; (b) stacking a polarizing layer on one surface of the touch panel, the one surface being an input surface of the touch panel; and (c) bonding the transparent conductive layer formed on the display surface of the display panel to the other surface of the touch panel, with the sticky layer interposed therebetween.

An image-capturing element that receives subject image light entering into a camera body through a taking lens is packaged and mounted within the camera body via a holder. The image-capturing element is mounted at the camera body by ensuring that its light-receiving surface is aligned with the image-forming position of the taking lens. A shield plate is provided on the rear side of the image-capturing element and a conductive elastic body is clamped and pressed between the shield plate and the rear portion of the camera body. The shield plate is grounded to the camera body having a large grounding capacity by the conductive elastic body. The conductive elastic body covers a gap at the periphery of the shield plate to absorb and block the electromagnetic wave noise which would otherwise leak through the gap.

A window body constituting a window of an aircraft includes an electromagnetic shield film, and a conductive paint is applied to an outer perimeter edge face of the window body. A fixing member secures the window body to an airframe with a gasket seal and a window frame interposed therebetween. The fixing member has a first bonding surface on which a conductive film is formed. The first bonding surface is in direct contact with the gasket seal. An electrical path is formed through the electromagnetic shield film, the conductive paint, the gasket seal, the fixing member, and the window frame.

A method for manufacturing a semiconductor device comprises: forming a circuit pattern and a first metal film on a first major surface of a body wafer; forming a through-hole penetrating the body wafer from a second major surface of the body wafer and reaching the first metal film; forming a second metal film on a part of the second major surface of the body wafer, on an inner wall of the through-hole, and on the first metal film exposed in the through-hole; forming a recess on a first major surface of a lid wafer; forming a third metal film on the first major surface of the lid wafer including inside the recess of the lid wafer; with the recess facing the circuit pattern, and the first metal film contacting the third metal film, joining the lid wafer to the body wafer; and dicing the joined body wafer and lid wafer along the through-hole.

A power control device for automatically and proportionately metering power to a heating device used to create a warm microenvironment conducive to the health and growth of an animal during a predetermined incubation period is herein disclosed. The power control device transmits proportionally more power to a heating device where an ambient temperature measured outside of the microenvironment is nearer a predetermined lower limit, and proportionately less power when the ambient room temperature measured outside of the microenvironment is nearer a predetermined upper limit.

It is possible to suppress affect an electromagnetic noise to a circuit board from outside or to the outside from the circuit board and realize stable operation of a fuel cell stack. A fuel cell system includes a fuel cell stack (4) formed by a plurality of cells overlain and a cell monitor substrate (11) for monitoring the cell voltage of the fuel cell stack (4) which are contained in a fuel cell case (14). The fuel cell stack (4) is connected to a power converter such as an inverter. The cell monitor substrate (11) is covered by a cell monitor cover (20) having a high electromagnetic wave shielding ability. The cell monitor cover (20) is formed by a conductor such as copper, iron, and aluminum.

This invention discloses a three-phase magnetic resistance motor, which replaces the multi-stage rotor core with a ladder-type convex pole with an ellipse two pole rotor core and utilizes a self-controlled light-coupled switch mounted on the axostyle of the rotor to realize location control and frequency self-support having the character of a self-controlled synchronous motor, and its unit volumepower reaches to over 4 times of the present one.

The object is to provide an integrated compressor that enables a control board to be miniaturized while ensuring a layout in which the heat radiation of parts is considered. Diodes 43 and IGBTs 42 that correspond to each of the U-phase, V-phase and W-phase are arrayed in series for each phase. Rectangular chips are used for the diodes 43 and IGBTs 42. As a result of this, a power board 16 is substantially miniaturized, and the diode 43, the IGBT 42, a P-terminal electrode pattern 40, an N-terminal electrode pattern 41, a shunt resistor 44, output terminal patterns 48U, 48V, 48W, and a feed pattern 50 are disposed so as to lie in a region in contact with an outer surface of a housing.

The present disclosure provides an electronic apparatus having an antenna unit at a body chassis. The electronic apparatus includes: a body chassis; an antenna supporting member disposed in an antenna space at a periphery of the body chassis, and having an upper face on which an antenna pattern is formed, the antenna space being surrounded with a dielectric cover; a shield wall for the antenna space, including a conductive thin film covering an entire lateral face of the antenna supporting member close to a center of the body chassis, an upper antenna ground element connected to the conductive thin film and the rear face of a keyboard cover member, and a lower antenna ground element connected to the conductive thin film and the rear face of a bottom-face cover member. The conductive thin film, the upper antenna ground element and the lower antenna ground element define the shield wall.

An exemplary magnetic flux sensor in accordance with the present invention is characterized by an electrical output that is proportional to the total static and dynamic flux passing normally through a large area. An oscillating electrical current passing down a conducting area produces Lorentz forces, which are transferred to piezoelectric areas. The piezoelectric areas produce electrical voltage at the oscillation frequency whereby amplitude is proportional to the total magnetic flux passing normally through the conducting area. Demodulating the voltage provides an electrical signal with high sensitivity, dynamic range, and noise immunity.

The power supply apparatus includes a first capacitor and a second capacitor that insulate a primary side and a secondary side of the power supply apparatus from each other. The power supply apparatus further includes an inductor, a first switch element connected to the inductor and to the first capacitor, and a second switch element connected to the inductor and to the second capacitor. The power supply apparatus controls the first switch element and the second switch element so that, when the first switch element is turned on, the second switch element is turned on.

A power supply device includes a first switching power supply that converts power of input power supply and supplies the converted power to a power storage device, a second switching power supply that converts power supplied from the first switching power supply or the power storage device and supplies the converted power to a load device, a noise filter that reduces noise generated in the first and second switching power supplies, and a shield against electromagnetic noise. The noise filter is provided between the first switching power supply and the power storage device, between the power storage device and the second switching power supply, and nearer to the power storage device than a branch point at which a power line from the first switching power supply to the power storage device intersects a power line from the second switching power supply to the power storage device.

A high-sensitive and high accuracy vibrating type pressure sensor (1) allowing a corrosive gas pressure to be directly applied thereto, having a heat resistance, and having no room for mixing of noise into a vibrator, comprising a stainless steel pressure receiving diaphragm (4) for receiving a fluid pressure P on a rear surface side, the vibrator (12) formed on the front surface side of the pressure receiving diaphragm (4), a wall body (8) disposed so as to surround the periphery of the vibrator (12), and a permeable part (20) for light transmission for changing an internal space in which the vibrator (12) is present into a vacuum chamber (10) by closing an opening part (8a) in the wall body (8), whereby, since the diaphragm (4) is formed of the stainless steel with corrosion resistance, the sensor can also be applied to corrosive fluid, since circuit wiring is eliminated from the vibrator (12) and the vibrator is isolatedly disposed in the vacuum chamber (10), mixing of electromagnetic noise can be eliminated, and since the resonance frequency fn of the vibrator (12) is performed by optical measurement in the state of non-contact, extremely high-sensitive and high-accuracy detection can be performed. A forced vibration device (57) can also be operated by piezo driving and electrostatic driving from the outside without generating noise.

A sensor panel includes: a plurality of first linear electrodes disposed in a detection region; a plurality of first routing traces; a plurality of first terminals disposed along one edge of the sensor panel parallel to a second direction; and a first guard trace extending and disposed on one side of the plurality of first routing traces farther away from the detection region. A first trace is one of the plurality of first routing traces connected to a first electrode that is a first linear electrode disposed farthest away from the plurality of first terminals among the plurality of first linear electrodes. A separation distance between the first trace and the first guard trace is not constant in the second direction in a first region adjacent to the detection region in the second direction. In the first region, the first guard trace has a portion intersecting a first direction.

A power control system for automatically and proportionately metering power to a heating device used to create a warm microenvironment conducive to the health and growth of an animal during a predetermined incubation period is herein disclosed. The power control system transmits proportionally more power to a heating device where an ambient room temperature measured outside of the microenvironment is nearer a predetermined lower limit, and proportionately less power when the ambient room temperature measured outside of the microenvironment is nearer a predetermined upper limit. A method of providing a heated microenvironment within a larger environment also is disclosed.

An electric compressor includes an inverter cover. The inverter cover has a metal plate that is arranged to cover an inverter (a circuit board). The metal plate has bolt insertion holes, through which metal bolts for fixing the inverter cover to a suction housing are passed. The head of each bolt contacts a flange portion, which is the periphery of the corresponding bolt insertion hole. The inverter cover is formed of plastic by being molded in a mold, using the metal plate as a core.

A radiation image capturing apparatus includes a conductive gel member disposed between a radiation detector and an integrated circuit provided in vicinity of the radiation detector and electrically connected thereto. The conductive gel member blocks the electromagnetic noise generated by the integrated circuit and thereby prevents the electromagnetic noise from propagating to the radiation detector. As a result, the electrical signals generated by the radiation detector are prevented from being affected by the electromagnetic noise and high-quality radiation images can be acquired.

A semiconductor package includes a substrate having a first surface, a second surface opposite the first surface, and interconnect patterns disposed therein, a semiconductor device mounted on the first surface of the substrate, a layer of sealing resin sealing the semiconductor device, a plurality of external connection electrodes formed on the second surface of the substrate, an electromagnetic wave shield film for blocking electromagnetic waves, which is formed on an upper surface of the layer of sealing resin and side surfaces of the layer of sealing resin and the substrate, and a ground interconnect formed on the substrate and electrically connected to the electromagnetic wave shield film.

The invention discloses a magnetic conductive assembly of an electromagnetic coil. The magnetic conductive assembly of the electromagnetic coil comprises two magnetic conductive parts which are equipped with end plates; each end plate is equipped with a through hole which is in match with an inner hole in a coil part; at least one of the two end plates is fixedly equipped with a magnetic conductive sleeve which is inserted into the inner hole; two magnetic conductive parts sleeve the coil part to be fixedly connected; the magnetic conductive assembly is of a split type structure; the magnetic conductive parts and the magnetic conductive sleeves are integrally arranged; when in assembling, the inner end surfaces of the magnetic conductive parts are reliably clung to the end surfaces of the coil parts, so that the electromagnetic noise produced between the magnetic conductive parts and the coil part or between the magnetic conductive parts and the magnetic conductive sleeves in the background technology can be avoided; in addition, each magnetic conductive sleeve is inserted into the inner hole of the coil part, so that the relative positions of the magnetic conductive parts and the coil part is limited; the two magnetic conductive parts are fixedly connected are being assembled, thus the magnetic conductive assemblies are reliably located to the coil part, and the quality problem that the magnetic conductive assembly and the coil part are separated and even fallen down during being transported can be avoided. The invention also discloses an electromagnetic coil comprising the magnetic conductive assembly.

A lighting circuit of a semiconductor light source includes a light control circuit and a constant current circuit. The light control circuit is configured to generate a pulsed light control signal having a duty ratio corresponding to the input pulse signal and having at least one edge softened in each pulse. The constant current circuit includes a linear regulator. The constant current circuit is configured to stabilize a lamp current flowing into the semiconductor light source to a target amount corresponding to the light control signal.

The invention relates to a high-frequency micro-electric protection mutual inductor. The mutual inductor comprises a closed iron core formed by two magnetic cores made of a high-frequency ferrite softmagnetic material. A primary coil and a secondary coil are arranged on the two magnetic cores, and two leading-out ends of the primary coil are connected with a high-resistance resistor in series. The primary coil and the secondary coil are formed by winding enamelled copper wires in a multilayer mode, and the number of winding turns is larger than 4000. Enamelled copper wires used by the primarycoil and the secondary coil adopt a same specification, a diameter is less than 0.1 mm, and three strands of stranded wires are led out in the last circle during wire leading. And the resistance value of the high-resistance resistor is 330 kiloohms. And the two magnetic cores made of the high-frequency ferrite soft magnetic material adopt ER magnetic cores. The inductor is high in anti-electromagnetic interference capability, power grid pollution such as a surge current generated in power generation and the like is prevented, the inductor is widely used for micro-power protection of wind power generation, electrical transmission, subways and the like, and an electromagnetic noise and jitter are effectively prevented.

In an electric tool, in order to carry out a phase control or an antiphase control using a transistor with the cost lower and structure simpler, and to suppress an electromagnetic noise, constant voltage generating means of the electric tool includes a series circuit of a resistor 91 and a diode 93 and a parallel circuit of a capacitor 95 and a Zener diode 97, one end of the resistor 91 is connected to a node between an AC power supply 1 and an AC motor 3, a cathode of the diode 93 is connected to one end of the capacitor 95 and a cathode of the Zener diode 97, and the other end of the capacitor 95 and an anode of the Zener diode 97 are connected to sources of transistors 51, 52. One ends of resistors 53, 54 are connected to gates of the transistor 51, 52, and a voltage at the other ends of the resistor 53, 54 are switched between a voltage at a node between the series circuit and the parallel circuit and a voltage of the source of the transistors 51, 52 so that the transistors 51, 52 are turned ON or OFF.

In a fuel cell system in which a fuel cell case (14) houses a fuel cell stack (4) composed of a plurality of cells stacked on top of each other and a cell monitor board (11) for monitoring cell voltages of the fuel cell stack (4) and in which the fuel cell stack (4) is connected to a power converter such as an inverter in order to reduce the influence of the electromagnetic noise from the outside of the circuit board or from the circuit board on the outside and to achieve a stable operation of the fuel cell stack. The cell monitor board (11) is covered with a cell monitor cover (20) having high electromagnetic shield property. The cell monitor cover (20) is made of a conductor such as, for example, copper, iron, or aluminum.

A sensor panel includes: a plurality of first linear electrodes disposed in a detection region; a plurality of first routing traces; a plurality of first terminals disposed along one edge of the sensor panel parallel to a second direction; and a first guard trace extending and disposed on one side of the plurality of first routing traces farther away from the detection region. A first trace is one of the plurality of first routing traces connected to a first electrode that is a first linear electrode disposed farthest away from the plurality of first terminals among the plurality of first linear electrodes. A separation distance between the first trace and the first guard trace is not constant in the second direction in a first region adjacent to the detection region in the second direction. In the first region, the first guard trace has a portion intersecting a first direction.

The invention provides electric heating equipment capable of enhancing safety when the heating of a heating wire is abnormal. The electric heating equipment comprises heating bodies comprising heating wires and detection wires, wherein the heating wires are wound on a winding core, the detection wires are spirally wound on a shaft installing a heat sensing layer between the detection wires and the heating wires and being coated by an insulation jacket, and the heating bodies are connected with a power supply by a temperature fuse in series to form the electric heating equipment. In the electric heating equipment, two heating bodies are arranged, and the heating wire contained in one heating body and the heating wire contained in the other heating body are connected with the power supply in series in a mode of reverse flowing current direction. The electric heating equipment comprises a control part. Because the abnormal heating of the heating wires causes the fusion of the heat sensing layer, the control part enables the temperature fuse to be fused after the heating wires and the detection wires generate short circuit and are heated because of current flowing through the detection wires.