245results about How to "Guaranteed current efficiency" patented technology

An electromagnetic linear generator and regenerative electromagnetic shock absorber is disclosed which converts variable frequency, repetitive intermittent linear displacement motion to useful electrical power. The innovative device provides for superposition of radial components of the magnetic flux density from a plurality of adjacent magnets to produce a maximum average radial magnetic flux density within a coil winding array. Due to the vector superposition of the magnetic fields and magnetic flux from a plurality of magnets, a nearly four-fold increase in magnetic flux density is achieved over conventional electromagnetic generator designs with a potential sixteen-fold increase in power generating capacity. As a regenerative shock absorber, the disclosed device is capable of converting parasitic displacement motion and vibrations encountered under normal urban driving conditions to a useful electrical energy for powering vehicles and accessories or charging batteries in electric and fossil fuel powered vehicles. The disclosed device is capable of high power generation capacity and energy conversion efficiency with minimal weight penalty for improved fuel efficiency.

The present invention provides a current sensor capable of sensing a current to be detected with high precision while realizing a compact configuration. The current sensor includes a first MR element including element patterns disposed at a first level, a second MR element including element patterns disposed at a second level, and a thin film coil which winds at a third level provided between the first and second levels while including winding body portions extending in an X axis direction in correspondence with the element patterns of the first and second MR elements, and which applies a current magnetic field to each of the element patterns when a current to be detected is supplied. Therefore, by using both of the first and second MR elements, the current magnetic field can be detected with high sensitivity and high precision.

A resonator, a filter, and a duplexer are provided which are capable of very effectively suppressing the power loss caused by the edge effect, and which allow a great reduction in the overall size to be achieved. Also, a communication device including the above-mentioned filter or duplexer is provided. A ground electrode is formed over the bottom surface of a dielectric substrate, and a multiple spiral line pattern is formed on the top surface thereof. A radial line pattern is further formed on this surface with an insulation layer interposed therebetween. By thus disposing the radial pattern adjacently to the multiple spiral resonator constituted of the above-mentioned multiple spiral line, an electrostatic capacitance is added to the multiple spiral resonator. This reduces the occupation area of the resonator on the substrate, and improves the loss reduction effect.

Disclosed is a nitride semiconductor LED having a light emitting structure. In the light emitting structure, an n-doped semiconductor layer has a first region and a second region surrounding the first region on a top thereof, an active layer is formed on the second region of the n-doped semiconductor layer, and a p-doped nitride semiconductor layer is formed on the active layer. A p-electrode is formed on the p-doped semiconductor layer. An n-electrode is formed on the first region of the n-doped nitride semiconductor layer.

A semiconductor circuit capable of controlling and holding the threshold voltage of a transistor at an optimal level and a driving method thereof are disclosed. A storage device, a display device, or an electronic device including the semiconductor circuit is also provided. The semiconductor circuit comprises a diode and a first capacitor provided in a node to which a transistor to be controlled is connected through its back gate. This structure allows the application of desired voltage to the back gate so that the threshold voltage of the transistor is controlled at an optimal level and can be held for a long time. A second capacitor connected in parallel with the diode is optionally provided so that the voltage of the node can be changed temporarily.

The present invention relates to a light emitting diode with enhanced luminance and light emitting performance due to increase in efficiency of current diffusion into an ITO layer, and a method of fabricating the light emitting diode. According to the present invention, there is manufactured at least one light emitting cell including an N-type semiconductor layer, an active layer and a P-type semiconductor layer on a substrate. The method of the present invention comprises the steps of (a) forming at least one light emitting cell with an ITO layer formed on a top surface of the P-type semiconductor layer; (b) forming a contact groove for wiring connection in the ITO layer through dry etching; and (c) filling the contact groove with a contact connection portion made of a conductive material for the wiring connection.

A resonator includes a hollow dielectric element having a hole therein, a helical line unit including a plurality of helical lines formed in the hole, and a ground electrode formed on an outer surface of the dielectric element.

A unitary projectile for an immobilization weapon and tethered by two electrical wires, has a plurality of electrical contacts including several contacts dispersed in a spaced pattern around the projectile after target impact. The pattern of several contacts substantially increases the probability that if the projectile hits the target, an immobilization circuit through the target will be completed. The deployment of the second contacts occurs as a result of the sudden deceleration of the projectile when it impacts the target or by the use of an additional spring-biased device. This simplifies the deployment as well as the projectile configuration and likely reduces the risk of misactivation or an ill-timed activation of the second contacts. In a preferred version of the disclosed embodiments, each projectile has its own electrical contact which forms one of the two polarities of the electrical discharge. In addition, there are preferably four second polarity contacts dispersed in a symmetrical arrangement around the projectile.

An onboard charger for both single-phase (level-1 and level-2, up to 19.2 kW) and three-phase (level-3, above 20 kW) charging of a battery in Plug-in Electric Vehicles (PEVs) is integrated with the Propulsion machine-Inverter Group residing in the PEV, and is controlled to operate in propulsion and battery charging modes. The subject integrated onboard charger provides battery charging at the rated power of the Propulsion machine, does not need motor / inverter rearrangement, does not require additional bulk add-on passive components, provides an effective input current ripple cancellation, and operates without rotation of the Propulsion machine during the steady state charging.

A fault analysis method includes: using a matrix of two sets of microgrid power distribution networks to analyze and solve a fault current, and for various types of faults of the distributed power distribution system, obtaining appropriate boundary conditions to calculate a variety of different types of single or simultaneous fault currents of load points. The present invention may be further applied to a situation where a bus or impedance or parallel loop is added. The present invention has good robustness and execution speed, and requires small memory space for calculation of analysis and identification of a power flow fault of the distributed power distribution system, and may be actually applied to an instrument control system for identification and analysis of a fault of a large-scalemicrogrid distribution system.

An organic light-emitting device includes a first electrode; a second electrode; an emissive layer disposed between the first electrode and the second electrode; a first hole injection layer disposed between the first electrode and the emissive layer; a second hole injection layer disposed between the first electrode and the emissive layer; and an electron transport layer disposed between the emissive layer and the second electrode. The first hole injection layer includes a metal fluoride and a first hole injecting material. The second hole injection layer includes a molybdenum oxide and a second hole injecting material. The electron transport layer includes an electron transporting material and a metal oxide. The metal oxide may be one of lithium oxide (Li2O), molybdenum oxide (MoO3), barium oxide (BaO), and boron oxide (B2O3).

A system and method that utilizes a massaging apparatus specifically for a person's temples with the expressed purpose of providing relaxation and headache relief, is herein disclosed. The apparatus is configured as a headband with battery-powered massagers at the temples. The apparatus is supported both with minimal elasticity from the headband and with ear supports. Power is supplied to the massagers from a rechargeable battery pack that can be worn about the arm or alternately the waist and is electrically tethered to the headband. Each small disc-shaped temple massager is separately powered by a small motor that produces the massaging effect which is intended to reproduce the sensation of rubbing / massaging the temples.

An electrical device, such as a battery charger, a method for operating an electrical device, a method for charging a battery, and a software program for operating the electrical device and / or the battery charger. In some aspects, the battery charger is capable of charging different types of batteries and capable of operating on alternate sources of AC power or alternate sources of DC power. Also, the battery charging circuit will not operate if one of the power source, the battery, the power switch means and the control means (including the microcontroller) malfunctions. In addition, in the battery charging circuit, the battery under charge enables the operation of the battery charging circuit.

Provided is a current collector substrate in an electrode of an alkaline secondary battery, which is advantageous not only in that it has excellent holding ability for a mixture for electrode, but also in that the utilization of an active material is improved, thereby enhancing the discharge characteristics of the battery, and an electrode and an alkaline secondary battery using the same. This current collector substrate has a plurality of openings formed within the surface of a metal powder sinter sheet which has a thickness (t) of 80 mum or less and is produced by a powdery calendering process, wherein the openings have periphery portions comprising burr portions protruding in the opposite directions.

Methods and structures for forming short-channel finFETs with vertical and abrupt source and drain junctions are described. During fabrication, source and drain regions of the finFET may be recessed vertically and laterally under gate spacers. A buffer having a high dopant density may be formed on vertical sidewalls of the channel region after recessing the fin. Raised source and drain structures may be formed at the recessed source and drain regions. The raised source and drain structures may impart strain to the channel region.

An IC card having a storage memory including a program storage unit for storing a program and a data storage unit for storing data and a central processing unit for executing a predetermined process in accordance with the program to process the data, the program including one or more data process units each having a process instruction for giving an execution instruction to the central processing unit, wherein a data process order is randomly exchanged and a dummy process is added to thereby reduce the dependency of consumption current of an IC chip upon the data process.

This portable electromagnetic induction heating device is used to carry an induction current in a conductor, make the conductor generate heat by Joule's heat, and heat adhesive by the heat generating conductor. A heating induction coil (13a) is formed by a plurality of coil bodies (21-24 and 51-54), the respective coil bodies can change mutually center-to-center distances. Simultaneously, by changing any one of polarities thereof, a polarity and a position of a magnetic force line generated by the conductor are changed, whereby a heating state of the adhesive can be changed depending on a region of the adhesive.

An illuminated optical magnifying device with an optical focusing unit that can produce a magnified image of an object to be observed and with an illumination device whose light is at least partially applicable for illuminating the object to be observed, whereby the illumination device is composed of at least one luminous diode, which is arranged in the magnifying device in such a way that its light can emerge from the magnifying device essentially straight toward the direction of the object to be observed.

A method and an apparatus for negotiation control of Quality of Service (QoS) parameters are provided. The method includes: obtaining, by a High Rate Packet Data (HRPD) Serving Gateway (HSGW), static QoS parameters of a User Equipment (UE), where the static QoS parameters include static QoS parameters related to an Access Point Name (APN); establishing, by the HSGW, a Packet Data Network (PDN) connection corresponding to the APN with the UE; and sending, by the HSGW, static QoS parameters related to the APN corresponding to the PDN to an access network to enable the access network to perform QoS authorization, according to the static QoS parameters related to the APN corresponding to the PDN, for establishing an air interface bearer for the UE.

A device for the study of cells including a vessel with a current damper including a damping component substantially disposed within the vessel is disclosed. The damping component reduces or eliminates currents formed by the addition of materials such as liquids to the vessel to prevent the movement of cells resting on the bottom surface of the vessel.

An encapsulated vacuum interrupter with grounded end cup and drive rod is disclosed. The double break vacuum interrupter includes a first contact system including an annular stationary contact which is engaged by a primary moving contact with the moving contact drive rod extending through the primary moving contact and through the opening of the annular stationary contact. A second contact system includes a secondary moving contact placed on the end of the moving contact rod, which engages and operates a floating contact, which moves along the same axis. A mechanical adjustment system is provided for the floating contact. A coaxial moving contact drive rod system is provided. With the encapsulated vacuum interrupter, the lower portion of the vacuum envelope is insulated from the current path, which allows for the elimination of the long internal cavity in the encapsulation as the lower end cup of the vacuum envelope may be grounded.

A booster circuit for boosting an externally supplied voltage includes a plurality of parallel-connected charge pump units. The charge pump units are activated successively in accordance with a boosted voltage to suppress peak current at start-up of the booster circuit and reduce fluctuation of power supply voltage.

The present invention discloses a low-noise single-gate non-volatile memory and an operation method thereof, wherein a transistor and a capacitor structure are embedded in a semiconductor substrate; the electrically-conductive gate of the transistor and the electrically-conductive gate of the capacitor structure are interconnected to form a single floating gate of a memory cell; an ion-doped buried layer is formed between the dielectric layer of the capacitor structure and the semiconductor substrate to reduce the external interference on the capacitor structure and control the initial threshold voltage; a reverse bias may be used to implement the reading, writing, and erasing operations of the single-floating-gate memory cell; in the operation of the low-noise single-gate non-volatile memory having an isolation well, positive and negative voltages may be applied to the drain, the gate, and the silicon substrate / the isolation well to create an inversion layer, and thereby, the absolute voltage, the area of the voltage booster circuit, and the current consumption can be reduced.

A microstrip patch antenna includes a plurality of radially extending perturbations about the perimeter of the patch. The flow of electromagnetic current progressing along the perimeter of the patch is perturbed and results in an effective electromagnetic diameter substantially greater than the actual physical diameter of the patch.

A soft-start circuit generates a soft-start voltage Vss having a voltage level that rises over time. A pulse width modulator generates a PWM signal having a duty ratio adjusted such that a feedback voltage Vout′ that corresponds to the output voltage Vout of the switching power supply matches the soft-start voltage Vss. A driver circuit controls a switching element according to the PWM signal. A capacitor is arranged such that one terminal thereof is set to a fixed electric potential. A current source generates a charge current that flows intermittently in synchronization with the PWM signal so as to charge the capacitor. The soft-start circuit outputs, as the soft-start voltage Vss, a voltage that occurs at the capacitor.

A unipolar semiconductor laser is provided in which an active region is sandwiched in a guiding structure between an upper and lower cladding layer, the lower cladding layer being situated on a semiconducting substrate. The unipolar semiconductor laser comprises a raised ridge section running from end to end between end mirrors defining the laser cavity. The ridge section aids in optical and electrical confinement. The ridge waveguide is divided in a plurality of cavity segments (at least two). Lattice structures can be arranged to these cavity segments. Each cavity segment is in contact with upper metallic electrodes. A metallic electrode coupled to the bottom surface of the semiconducting substrate facilitates current injection through the device.

A power factor correction converter capable of fast adjusting load functions to (a) convert a single-phase AC voltage into a DC voltage output; (b) control an input current and an input voltage for a correspondent electrical phase, namely the power factor that is 1; and (c) control a DC output voltage level. The converter is provided with a booster-based AC-DC converter as a core, in which the circuit includes a rectification circuit, a switching circuit consisting of a DC inductor and a power crystal, an energy-saving capacitor, a protection circuit, a microprocessor, and auxiliary circuits around. The power factor control, output voltage, and current control and filter modules function in the form of software program instead of conventional hardware circuits. Further, a powerful controller uses an output current feedback to enhance the DC output voltage to suppress the disturbance of load.

A CMOS image sensor (CIS) process is described. A semiconductor substrate is provided, and then a gate dielectric layer, a gate material layer and a thickening layer are sequentially formed on the substrate, wherein the thickening layer includes at least a hard mask layer. The thickening layer is defined to form a transfer-gate pattern, and then the transfer-gate pattern is used as an etching mask to pattern the gate material layer and form a transfer gate. Ion implantation is then conducted to form a PN diode in the substrate with the transfer-gate pattern and the transfer gate as a mask.