64results about How to "Increase the starting voltage" patented technology

The invention provides a high voltage direct current cable insulation material, which comprises the following components in parts by weight: 100 parts of LDPE (Low-density Polyethylene), 1-2 parts of CPE (Chlorinated Polyethylene), 0.5-1.5 parts of BaTiO3, 0.6-1.5 parts of conductive potassium titanate whisker, 1-2.5 parts of a cross-linking agent, and 0.1-0.5 part of an antioxygen. A semiconductive polyolefin shielding material prepared from the high voltage direct current cable insulation material has the advantages of ultra-smooth surface feature, good physical property and excellent overall performance; electric current is effectively output to form a favorable uniform electric field, and partial discharge or insulation breakdown caused by severe electric field concentration due to surface defects of a semiconductive shielding layer is prevented; ionized charge and injected charge are absorbed in a deep trap, so that charge accumulating in a local area is avoided, space charge accumulation in a cable insulation material is restrained, and electrical conductivity of the cable insulation material is reduced.

A system for starting an internal combustion engine includes a battery system, a charger to receive DC battery power from the battery system and convert the power to a DC charging current, a supercapacitor array having a plurality of supercapacitor cells connected to the charger to receive the DC charging current therefrom, and a motor starter to start the internal combustion engine responsive to a DC input from the supercapacitor array. The charger modifies a voltage of the supercapacitor cells in an on-demand fashion, with the charger programmed to provide DC charging current to the supercapacitor array to hold the supercapacitor cells at a first voltage, receive a bump-up command indicative of an upcoming engine start and, responsive to receiving the bump-up command, provide DC charging current to the supercapacitor array to increase a voltage of the supercapacitor cells temporarily to a second voltage higher than the first voltage.

In an arc tube for discharge lamp, an electrode assembly is formed by integrally joining an electrode rod, a molybdenum foil, and a molybdenum lead wire. The electrode assembly is sealed into pinch seal portions located at both ends of a glass tube. The electrode assembly, before being pinch-sealed into the pinch seal portions, receives vacuum heat treatment at 200 to 800° C. Hereby, the water content of the assembly is adjusted to 10 ppm or less, and desirably to 3 ppm less and an oxide film attached to the surface of the electrode assembly is removed. Therefore, the quantity of impurity (water or gas) enclosed in the closed glass bulb is very small, so that it is possible to provide an arc tube in which the flicker is not produced, luminous flux of 3000 lm or more is obtained, and starting voltage can be lowered to about 15 kV.

The invention relates to a high-pressure discharge lamp having a transparent discharge vessel, an ionizable filling which is arranged in the discharge space of the discharge vessel and electrodes, which extend into the discharge space of the discharge vessel, for the purpose of producing a gas discharge, as well as power supply lines, which are passed out of the discharge vessel, for the purpose of supplying energy to the electrodes, the discharge vessel of the high-pressure discharge lamp being provided partially with an electrically conductive coating, with the result that a capacitive coupling is produced between the coating and at least one electrode and/or power supply line. As a result, the starting properties and the luminous efficiency of the lamp are improved.

The embodiment of the invention provides a pixel driving circuit, a driving method of the pixel driving circuit and a display device, and solves the technical problem that a certain error exists in agate voltage of a driving transistor due to incomplete writing of a data signal in the prior art. According to the pixel driving circuit provided by the embodiment of the invention, when a data signalvoltage is transmitted to a data storage module, a starting point voltage of the discharge of the data storage module is increased by adopting the gate-drain short circuit of a compensation module and a second driving transistor. Therefore, the discharge time of the data storage module is shortened, the data signal writing time is shortened, the data signal writing speed is increased, the attenuation of the data signal during writing is reduced, the error voltage is reduced, the difference of a driving current is reduced, and the probability of inconsistent pixel brightness is reduced.

A UHF ceramic capacitor sensor for in-line monitor of local high-voltage discharge is composed of electrically insulating shell packaged by epoxy resin and the ceramic capacitor core with upper and lower copper electrodes and their conducting metal rod and metal strip. Its advantages are high sensitivity and minimal distortion. When a pair of such sensors are connected to the bus of one phase of electric generator, an anti-interference method for discriminating pulse delay can be implemented.

The invention is a method for making a double-layer grid dielectric layer, firstly providing a semiconductor substrate and forming a silicon dioxide film on the semiconductor substrate, successively forming a noncrystalline silicon film on the silicon dioxide film and making a low-temperature plasma nitrogenization process to form the noncrystalline silicon film into a nitrogenous noncrystalline silicon film, and finally making an oxygen gas annealing process to make the oxygen gas react with the nitrogenous noncrystalline silicon film so as to form a nitrogen-enriched silicon oxynitride layer.

A self-ballasted fluorescent lamp includes a luminous tube that is formed in a bent shape with a pair of electrode-side end portions located at a the bottom end of the luminous tube. A cover houses a lighting device for lighting the luminous tube. A base is attached to the bottom end of the cover, and the luminous tube is supported at the top end, of the lamp. The outer diameter of a bulb of the luminous tube 14 ranges from 3 to 8 mm, and the maximum width of the luminous tube, is not greater than 30 mm. The cover is formed so that the proportion of the distance by which the cover extends from the base to the lamp length excluding the base ranges from 0 to 25%, and so that the maximum outer diameter of the cover ranges from 1.0 to 1.5 times the outer diameter of the base.

The invention relates to a novel wireless fluorescent lamp which works in a bright arc transition zone, comprising a lamp tube, an electrode, a drive, a lamp casing and a lamp cup or lampshade. The electrode consists of tungsten, or molybdenum or iron. More than one layers of anti cathode sputtering films are arranged on the surface of the electrode. Super-pure argon air is filled into the lamp tube with an air-filling pressure ranging from 800 Pa to 6665Pa. The work current of the lamp tube is between 7MA and 60MA. A cold end is arranged in the lamp tube and a titanium mercury zirconium aluminum 16 alloy amalgam or an indium mercury zirconium aluminum 16 alloy amalgam is arranged in the cold end. An insulation layer is arranged between the lamp cup or lampshade and the lamp casing. The cold end extends from the lamp cup or lampshade to the insulation layer. The invention enhances light effect and surface brightness, and has small volume, high flux, enhanced reliability and long service life. The manufacture of the drive is easy, the manufacturing cost is low and the cost performance is high, furthermore, the proposal of the EMC is easy, the cost for restraining electromagnetic interference wires is low and the effect for restraining electromagnetic interference is good.

The invention discloses a fluorenone derivative, and preparation and application thereof. The fluorenone derivative takes a fluorenone structure containing electron deficiency carbonyl groups as a core, and an aromatic fused ring compound with the electron deficiency characteristic is further bridged to form a compound with high hole transfer. The fluorenone derivative serving as a hole transfer material and a luminous layer main body material of an OLED device has the advantages of remarkably improved performance of the device in starting voltage, luminous intensity, external quantum efficiency, current efficiency, power efficiency, chromaticity, half-life and the like, and enhanced working stability of the device.

The circuit arrangement according to the invention comprises an inductor-type converter for the pulsed operation of dielectric barrier discharge lamps (EL). The invention proposes both a half bridge variant and a full bridge variant. By selecting the inductance value of the inductor (L), it is possible to influence the edge steepness of the pulses, in the case of more than one inductor even independently for the rising and falling edges.

The invention provides a cable wrapping intermediate joint and a manufacturing process thereof, which are used for butt joint of two sections of three-core or single-core cables. The wrapping intermediate joint includes the connector wrapping connecting each single-phase cable, and the protective wrapping all the connectors; A tap wrap includes a pressure nozzle connected with a conductor core ofthat same-phase cable, a stress cone sleeved on the cable, a wound limiting step, a semi-conductive tape layer, an insulating tape layer, a tap shield layer, a copper mesh layer, a single-phase cablemetal shield tape, a PVC layer and a single-phase cable waterproof layer; The protective wrapping package comprises a binding layer, a cable metal shielding tape, a cable waterproof layer and a cablearmor layer from the inside to the outside. The winding intermediate joint of the invention can achieve the purposes of good connection, reliable insulation, good sealing performance, high mechanicalstrength, simple structure and convenient fabrication and installation of the conductor core of the cable, can ensure the safety and stability of the cable operation and obtain good economic benefits, and therefore has great popularization and application value.

The invention discloses an electron transport type heteroanthracene derivative, a preparation method and application thereof, and an organic electroluminescent device. The heteroanthracene derivativehas a parent nucleus structure of heteroanthracene, and is modified by a group to form a D-A type compound. The heteroanthracene derivative has remarkable and excellent fluorescence electroluminescentcharacteristics and electron transport characteristics, has relatively high quantum yield and electron mobility when being used as a luminescent object material, an electron transport material or a hole blocking material of an organic electroluminescent device, can effectively solve the problem of electron and hole imbalance in the device, emits purer light color, and compared with similar compounds and compounds in the prior art, has more remarkable advantages in starting voltage, current efficiency, service life and thermal stability.

The invention provides a noise lowering treatment method for a corona audible noise of a high-voltage power transmission line. The noise lowering treatment method for the corona audible noise of the high-voltage power transmission line comprises the following steps that S1, the surface of the high-voltage power transmission line is cleaned; S2, the surface of the high-voltage power transmission line is evenly coated with hydrophobic paint. By the adoption of the noise lowering treatment method for the corona audible noise of the high-voltage power transmission line, accumulation of water dropsand dirt on the surface of the power transmission line can be effectively reduced, so that the electric field distortion on the surface of a wire is reduced, so that the corona starting voltage of the high-voltage power transmission line is improved, and then the corona audible noise of the high-voltage power transmission line during severe weather can be lowered.

First, patterned mask layer is formed on a substrate. Next, an ion-implantation step is carried out in order to form a doping range on substrate uncovered by mask layer. Then, an etching step is carried out in order to patternize substrate. Thus, a groove is formed on the substrate, and doping area is exposed at bottom of groove. A insulating layer is filled into the groove to form a shallow groove isolation region. In the invention, doping area is formed at bottom of shallow groove isolation region, and not formed at side wall.

The lightning arrester for power source is composed of at least more than one discharging modules and performance figure circuits that are connects to two lines among phase line, zero line or ground line. The discharging module consists of main discharging circuit and starting circuit connected in parallel. The main discharging circuit includes voltage dependent resistor VR2 and gas discharge tube in serial. The starting circuit includes voltage dependent resistor VR1. The invented device solves the issue of high residual pressure before starting the gas discharge tube completely by using the structure of combining the main discharging circuit and the gas discharge tube. After the gas discharge tube starts, then the main discharging circuit does main discharging task. Morecover the element with lower starting voltage can be selected for the gas discharge tube and the voltage dependent resistor, so as to realize lower residual pressure, higher starting voltage and higher response speed.