98results about How to "Low voltage" patented technology

A material for an organic electroluminescent device including an imine derivative represented by the following formula (Ia) or (Ib),wherein Y1 to Y4 are independently a carbon atom or a nitrogen atom; R1 to R4 are independently hydrogen, an alkyl group, an aryl group, a heterocycle, a halogen atom, a fluoroalkyl group or a cyano group; and R1 and R2, or R3 and R4 may be bonded together to form a ring.

A semiconductor integrated circuit according to the present invention comprises a MOS transistor formed on an SOI substrate and a subsidiary transistor provided between a body node and a drain node of the MOS transistor and sharing a gate electrode with the MOS transistor, whereby body potential of the MOS transistor is controlled by gate and drain potentials. Accumulated body charge in a non-conducting state in the semiconductor integrated circuit is extracted by a resistor formed between the body node and a source, whereby various phenomena caused by floating body effect are eliminated. Since the body potential of the MOS transistor can be varied without creating an undesirable leakage current path, and hence without limitations to supplied voltage, its threshold voltage can be made variable so as to follow change in an input signal, thereby making it possible to achieve higher speed and lower voltage operation of the semiconductor integrated circuit. According to the present invention, it is possible to eliminate floating body effect, which is the greatest problem with an SOI transistor formed on an SOI substrate, and also to achieve lower voltage and greater current operation of a transistor without posing limitations to supplied voltage and without causing the problem of leakage current.

[Problem to be Solved]To provide a battery state notifying unit, a bus bar module, a battery pack and a battery state monitoring system allowing the number of electric wires guided to a unit monitoring a battery state to reduce, and signal voltage applied to the electric wires to lower.[Solution]A battery power source system 1 is provided with a battery state notifying unit 40 corresponding to each the battery pack 10, wherein the battery state notifying unit 40 generating battery state information of digital signal including information indicating electrode voltage and temperature of the battery cells 21, and transmitting the battery state to the battery state monitoring unit 60, the information being based on cell voltage signal corresponding to electrode voltage outputted from terminal fittings 33 of the battery pack 10, and cell temperature signal corresponding to voltage outputted from temperature sensor 34.

A redundant power distribution system (74) that has multiple distribution lines (168) and (174) includes multiple regulators (122). Multiple isolation transformers (124) are coupled to the regulators (122) and have isolation boundaries (261). An R(M / N) device circuit (152) is coupled to the isolation transformers (124). The regulators (122) and the isolation transformers (124) have a non-feedback looped configuration (259) across the isolation boundaries (261).

A phototherapy bandage capable of providing radiation to a localized area of a patient for accelerating wound healing and pain relief, photodynamic therapy, and for aesthetic applications. The phototherapy bandage may include a flexible light source that is continuous across the bandage for providing a selected light, such as a visible light, a near-infrared light, or other light, having substantially similar intensity across the bandage. The bandage may also be flexible and capable of being attached to a patient without interfering with the patient's daily routine. The phototherapy bandage may easily conform to the curves of a patient and may come in a variety of exterior shapes and sizes.

A transistor bias circuit is provided that is capable of operating from a power supply voltage that is slightly higher than twice the base-emitter voltage of the transistor to be biased. The bias circuit includes a transistor connected in a current-mirror configuration with the transistor to be biased. A feedback circuit maintains the mirrored current at a constant level. The gain of the feedback circuit is improved by the addition of a non-inverting amplifier within the feedback circuit. In a preferred embodiment, the biased transistor is concurrently in both a Darlington and the current mirror configuration. Moreover, a feedback transistor in the feedback circuit is also concurrently in the Darlington configuration, thus providing an efficient biasing arrangement for an amplifier block based on the Darlington arrangement.

A memory cell in a semiconductor memory device comprises a variable resistor element configured so that a variable resistor body is sandwiched between a first electrode and a second electrode, and a transistor element capable of controlling a flow of current in the variable resistor element, wherein the transistor element and the variable resistor element are placed one over the other along a direction in which the first electrode, the variable resistor body, and the second electrode of the variable resistor element are layered, and one of the first electrode and the second electrode of the variable resistor element is connected to one electrode of the transistor element.

A semiconductor device according to this invention includes: a first insulating layer (11); a first body section (13) including an island-shaped semiconductor formed on the first insulating layer; a second body section (14) including an island-shaped semiconductor formed on the first insulating layer; a ridge-shaped connecting section (15) formed on the first insulating layer to interconnect the first body section and the second body section; a channel region (15a) formed by at least a part of the connecting section in lengthwise direction of the connecting section; a gate electrode (18) formed to cover a periphery of the channel region, with a second insulating layer intervening therebetween; a source region formed to extend over the first body section and a portion of the connecting section between the first body section and the channel region; and a drain region formed to extend over the second body section and a portion of the connecting section between the second body section and the channel region, wherein a semiconductor forming the channel region has a lattice strain.

An organic electroluminescent device (1) including an anode (2), a cathode (6), and at least a first layer (3), a second layer (4), and a third layer (5) provided between the anode (2) and the cathode (6) in that order from the anode side. At least one of the first to third layers (3), (4), and (5) includes a phosphorescent compound. At least one of the first to third layers (3), (4), and (5) is an emitting layer. At least three compounds respectively forming the first layer (3), the second layer (4), and the third layer (5) other than the phosphorescent compound are compounds of the following formula (1). wherein R1 to R7 each represent a hydrogen atom or a substituent, provided that adjacent substituents may form a ring.

An optical imaging head for direct engraving of flexographic printing plates, comprising at least two laser diodes (10, 12) emitting radiation in one or more wavelengths; and means for imaging the one or more wavelengths of radiation at different depths relative to a surface of the plate.

A harmonic injection point a is set on a power line extending downstream from a harmonic measuring point b in an electric power system. The currents of interharmonics are injected to the harmonic injection point a by a current injection device. The frequencies of the interharmonics are located on both sides of the frequency of an n-th targeted harmonic in frequency spectrum and each of the frequencies is a nonintegral multiple of the frequency of a fundamental wave of an electric power transmitted by the electric power system. The current values and voltage values of the interharmonics at the harmonic measuring point are detected to thereby obtain admittance values of an equivalent circuit of a power line extending upstream from the harmonic measuring point b when the interharmonics flow therethrough. An admittance value of the equivalent circuit of the power line when the targeted harmonic flows therethrough is determined by interpolating the admittance values for the interharmonics. Measurement is made of a harmonic characteristic of the power line extending upstream from the harmonic measuring point b, which is set at a point located upstream from the harmonic injection point a.

Various traveling wave grids and electrophoretic systems, and electrode assemblies using such grids, are disclosed. A configuration in which a voltage potential is used to load a biomolecule sample against a grid is disclosed. A unique strategy of using multiple, reconfigurable grids in such systems is also described. The strategy involves initially conducting a broad protein separation and then selectively tailoring one or more grids, and conducting one or more secondary processing operations. Related strategies and specific methods are additionally disclosed for separating samples of biomolecules and components thereof using the noted systems, assemblies, and grids.

An optical modulator, methods of manufacturing and operating the same, and an optical apparatus including the optical modulator are disclosed. The optical modulator includes an electro-optical converter and an optical-electric converter, stacked perpendicular to a substrate, and a gate transistor. The gate transistor gates a signal transmitted to the electro-optical converter from the optical-electric converter and allows charges generated in the optical-electric converter and charges remaining in the electro-optical converter to flow while bypassing the electro-optical converter when gating ON is performed.

An electrode assembly comprises a coil of electrode material surrounded by a shield having one or more outlets and a supply of shielding gas directed along an axis X-X of said coil before exiting from said shield.

An integrated current collector and electrical component plate for a fuel cell stack is disclosed, comprising a printed circuit board comprising the following layers: a current collection layer, comprising a current collector; a first insulation layer, comprising a first surface and a second surface; an electrical component layer, comprising an electrical component having a first connection site and a second connection site; and a second insulation layer, comprising a first surface and a second surface, wherein the current collection layer is laminated to the first surface of the first insulation layer, and the electrical component layer is laminated between the second surface of the first insulation layer and the first surface of the second insulation layer. A fuel cell stack and methods for manufacturing a fuel cell stack comprising the integrated current collector and electrical component plate are also disclosed.

The present invention relates to a new binaphthalene derivative, a preparation method thereof, and an organic electronic device using the same. The binaphthalene derivative according to the present invention can perform functions of hole injection and transportation, electron injection and transportation, or light emission in an organic electronic device including an organic light-emitting device, and the device according to the present invention has excellent characteristics in terms of efficiency, drive voltage and stability, and in particular excellent effects such as a low voltage and a long life time.

An object of the invention is to provide a polymer compound having a high hole transport capacity, excellent in electrochemical stability, and suitable to film formation according to a wet film formation method. Another object of the invention is to provide an organic electroluminescence element having a high current efficiency, a low drive voltage, and a long derive lifetime. The polymer compound has a crosslinking group bonding to the arylamine moiety in the repeating unit via at least one single bond therebetween.

A material for an organic electroluminescent device is represented by the following General Formula (1). The organic electroluminescent device may be driven at a low voltage and may have high emission efficiency and long life.

High resolution observation is achieved at a low acceleration voltage of 5 kV or below under a high pressure condition of a sample chamber. A sample chamber has a double structure and an inner sample chamber for keeping low vacuum is arranged inside an outer sample chamber having high vacuum. A relatively high negative voltage such as −1 to −9 kV for decelerating electrons immediately before a sample is applied between the outer sample chamber and the inner sample chamber. When an incident electron beam passes through an objective lens, an electron beam keeping high energy and having small aberration is formed and is decelerated immediately before the sample to acquire high resolution at a low acceleration voltage.

An aromatic amine derivative represented by formula (1):wherein R1, R2, R3, L, AR1, Ar2, k, m, and n are the same as defined in the specification, is useful as a material for an organic EL device and realizes an organic EL device with a high efficiency and a long lifetime even when driving it at a low voltage.

Small mechanical devices fabricated from semiconductor substrates called micro-electromechanical systems (MEMS) are used in the telecommunications industry for various purposes, such as switching and attenuation. Typically a small mirror or arm is moved into or out of the optical path of a beam of light to redirect of attenuate the signal. The present invention relates to a drive circuit for a MEMS device that converts a low voltage source into a higher more useful voltage pulse. The present invention also relates to an optically powered MEMS device utilizing the aforementioned drive circuit. Moreover, the drive circuit according to the present invention can be used to generate a single exponentially decaying pulse that can both generate an actuation force and a braking force for the MEMS device.

It is an object of the present invention to provide a light emitting element which can be driven at a low voltage. Other objects of the present invention are to provide a light emitting element with a high luminescent efficiency; a light emitting element with a high luminance; a light emitting element having long-life luminescence; a light emitting element and an electronic device having reduced power consumption; and a light emitting element and an electronic device which can be manufactured at low cost. The light emitting element has a light emitting layer and a barrier layer between a first electrode and a second electrode, the light emitting layer contains a base material and an impurity element, and the barrier layer is provided so as to be in contact with the first electrode. Light emission is obtained when a voltage is applied such that a potential of the second electrode becomes higher than a potential of the first electrode.

A segmented thermionic emitter is provided. The segmented thermionic emitter has, among other features, a plurality of segments substantially spanning an entire length of the thermionic emitter and aligned substantially parallel with one another. In one embodiment, the segmented thermionic emitter may allow milli-amp modulation of an X-ray tube at voltages less than approximately 2 kV.

An organic EL element (11) includes a light emitting layer (15) which has a two-layer structure, and a first light-emitting layer (15a) is made from a host material which includes LUMO shallower than (i) LUMO (19) of a phosphorescent light emitting material and (ii) LUMO of a host material, from which a second light-emitting layer (15b) is made (|LUMO (host material for first light-emitting layer)|<|LUMO (host material for second light-emitting layer)| and |LUMO (host material for first light-emitting layer)|<|LUMO (phosphorescent light emitting material)|).Further, the second light-emitting layer (15b) is made from a host material which includes HOMO deeper than (i) HOMO (18) of the phosphorescent light emitting material and (ii) HOMO of the host material, from which the first light-emitting layer (15a) is made (|HOMO (host material for second light-emitting layer)|>|HOMO (host material for first light-emitting layer)| and |HOMO (host material for second light-emitting layer)|>|HOMO (phosphorescent light emitting material)|). This makes it possible (i) to block holes from moving to the second light-emitting layer (15b) and (ii) to block electrons from moving to the first light-emitting layer (15a). As a result, a probability that the holes and the respective electrons recombine with each other is increased. It is therefore possible to reduce a driving voltage of an organic EL element (11). This improves light emitting efficiency.

The invention provides an electrothermal film constituent, and is characterized in that: the constituent comprises a fibrous material and conductive paint, wherein the fibrous material comprises a plurality of fibers connected into a network; the conductive paint is absorbed on the fibers and comprises an adhesive and a carbon conductive material, with the ratio of the weight percentage of the adhesive to that of the carbon conductive material between 20:1 and 4:6. The carbon conductive material is selected from or is a combination of micron-sized carbon soot particles, nano-sized carbon soot particles, micron-sized graphite particles, nano-sized graphite particles, micron-sized carbon fibers, nano-sized carbon fibers and carbon nanotubes.

A method for managing work distribution in a processor including a plurality of instruction data modules, is provided. The method includes analyzing work units received by the processor and comparing the utilization level in each active module within the plurality with a first predetermined threshold. The work units are distributed across selected ones of the modules within the plurality based upon the analyzing and the comparing.

The application proposes an accelerator pedal sensor minimum voltage learning method and device as well as a vehicle control unit, wherein the method comprises the following steps of acquiring a sensor voltage value corresponding to an accelerator pedal mechanical minimum value when a vehicle key is at an ACC position; and according to the sensor voltage value corresponding to the accelerator pedal mechanical minimum value, the accelerator pedal sensor minimum voltage stored in the vehicle control unit (VCU) EEPROM, and the status of an accelerator pedal sensor, judging in real time whether the sensor voltage value corresponding to the accelerator pedal mechanical minimum value needs to be adjusted, and performing learning adjustment according to a minimum value learning method, so that a sensor voltage corresponding to the accelerator pedal mechanical minimum value can be accurately learned in real time, and travelling safety and driving operation sense can be improved. The initial value of the VCU EEPROM, namely the upper limit of the sensor voltage corresponding to the accelerator pedal mechanical minimum value, is set, so that the accelerator pedal sensor minimum voltage learning method disclosed by the invention can be adapt to different types of accelerator pedals from different manufacturers.

The present invention provides a polymer material showing high luminous efficiency at a low voltage and suitable for increasing the emission area and for the mass production, and an organic light emitting device using the same. The present invention relates to a polymer compound comprising a boron-containing monomer unit represented by formula (1): [in the formula, A represents a triphenyl boron group in which the phenyl group may be substituted, R16 represents a hydrogen atom or an alkyl group having 1 to 12 carbon atoms. X represents a single bond, —O—, —S—, —SO—, —SO2— or a divalent hydrocarbon group having 1 to 20 carbon atoms which may have a hetero atom], a light-emitting polymer compound comprising the boron-containing monomer unit and a light-emitting monomer unit, a light-emitting composition comprising the boron-containing monomer unit and a light-emitting low-molecular compound or light-emitting polymer compound, and organic light-emitting device using the light-emit-ting polymer compound or the light-emitting composition.

The invention relates to an electrostrictive composite material comprising a flexible macromolecule base, a plurality of carbon nano tubes distributed in the flexible macromolecule base and a plurality of ceramic particles distributed in the flexible macromolecule base. Besides, the invention also relates to a preparation method of the electrostrictive composite material.