119 results about "Electric efficiency" patented technology

A high efficiency switching power supply including an analog front end, a battery control circuitry portion, a display and equalization circuitry portion, field effect transistor (FET) drivers, an isolated power supply transformer circuitry (and three associated sets of tap circuitry), microcontroller circuitry, oscillator circuitry, overcharge protection circuitry, programmable logic circuitry portion, and a zero current predictor. Overbiasing of the FET power supply switches, and/or other various circuitry features disclosed herein, helps achieve electrical power efficiencies of preferably greater than 95%, even more preferably greater than 98% and even more preferably greater than 99%. Preferably, the switching power supply has one or more of the following: (1) high electrical power efficiency (>95%. >98%, >99%); (2) overbiasing of a gate of a power supply switch; (3) a power supply switch with a low gate capacitance ratio; (4) multiple modes of operation; and (5) current prediction wherein an inductor voltage is used to control a constant current capacitor whose voltage indicates the level of current in the inductor.

A hybrid generator may include a fuel powered engine; an alternator comprising a permanent magnet alternator head with at least 90% mechanical-to-electric efficiency, the alternator being coupled to the engine; one or more batteries to receive and store power routed from the alternator; a controller to maintain efficient operating speed of the engine at prime power; and a power converter or inverter to convert stored energy from the batteries into usable electricity for AC or DC loads.

A cordless electric power tool comprises a motor that drives a tool, a battery that supply electric power to the motor and a motor drive circuit that is disposed between the motor and the battery. The motor is a three-phase brushless motor, and the battery has a nominal voltage of 18 volts. An overall electric efficiency of the cordless electric power tool becomes at least 70 percent when a value of current passing through the motor becomes at least 35 amperes but no more than 45 amperes and the cordless electric power tool outputs power of at least 450 watts but no more than 550 watts.

Disclosed is a rear plate of a plasma display panel. In the rear plate, barrier ribs are formed through etching after backing, and thus the completed barrier ribs are not deformed. Therefore, each electrode can be exactly located on a central portion between barrier ribs. When a PDP having front and rear plates attached to each other has been completed, optical characteristics of the PDP such as white brightness, color temperature, and contrast, and electric characteristics of the PDP such as voltage margin, power consumption, and electric efficiency, are improved, so that the reliability is improved.

A method for power-efficiency management in a virtualized cluster system is disclosed, wherein the virtualized cluster system comprises a front-end physical host and at least one back-end physical host, and each of the at least one back-end physical host comprises at least one virtual machine and a virtual machine manager for managing the at least one virtual machine. In the method, flow characteristics of the virtualized cluster system are detected at a regular time cycle, then a power-efficiency management policy is generated for each of the at least one back-end physical host based on the detected flow characteristics, and finally the power-efficiency management policies are performed. The method can detect the real-time flow characteristics of the virtualized cluster system and make the power-efficiency management policies thereupon to control the power consumption of the system and perform admission control on the whole flow, thereby realizing optimal power saving while meeting the quality of service requirements, so that a virtualized cluster system with high power-efficiency can be provided.

The invention discloses a lanthanum cerium-magnesium intermediate alloy and a production method thereof, relating to the technical field of preparation of a rare earth-magnesium intermediate alloy product. According to the production method, a coelectrodeposition method is adopted, a graphite crucible is used as an electrolytic tank and an anode, a molybdenum bar is used as a cathode, a magnesium oxide crucible is used as an alloy supporting device, an electrolyte is formed by mixing KCl, anhydrous MgCl2 and RECl3 together. By adopting the preparation method disclosed by the invention, the lanthanum cerium-magnesium intermediate alloy high in quality and low in cost can be produced through one step by adopting magnesium and rare earth compounds through the coelectrodeposition method. The process indicators of the whole production process are relatively high, wherein the average electric efficiency reaches 65-75% and more than 85% at the maximum, the rare earth direct yield is more than 85%, and the magnesium direct yield is more than 95%. The lanthanum cerium-magnesium intermediate alloy prepared by the invention is lowest in price, and resources can be continuously supplied to promote sustainable development of rare earth-magnesium alloys.

The invention provides a magnetic induction coil moving non-contact charger. The magnetic induction coil moving non-contact charger is simple in structure, low in cost and high in electric efficiency. The magnetic induction coil moving non-contact charger makes a table equipped with a transmission coil to move freely in an X-axis direction and a Y-axis direction. In the magnetic induction coil moving non-contact charger, an enabling component is included between a sliding base and the table. The transmission coil is pressed on a circuit substrate by utilizing an addition force of the enabling component and the table moves in the X-axis direction and the Y-axis direction.

The invention relates to an image sensor mould package structure. Wherein, dual connecting pads are on the first surface of said glass base plate and outside the incident area of base plate; one wire layer is on the second surface of said glass base plate to be electrically connected to the connecting pads and wire layer via dual through hole of base plate; one image sensor chip is at the second surface of base plate, to aim the sensing area of chip to the incident area of base plate; and the chip is electrically connected to the wire layer of glass base plate; said connecting pads can be used in external connections; or dual inactive elements can be arranged on wire layer to improve the function and electric transmission efficiency of said invention. The invention can improve the electric efficiency and avoid light path interference.

An embodiment in the invention discloses a forming method for a semiconductor pipe core and a conductive pillar. The semiconductor pipe core comprises a conductive pillar disposed at the semiconductor pipe core. A substrate is provided. A bond pad is over the substrate. A conductive pillar is over the bond pad. The conductive pillar has a top surface, edge sidewalls and a height. A cap layer is over the top surface of the conductive pillar. The cap layer extends along the edge sidewalls of the conductive pillar for a length. A solder material is over a top surface of the cap layer. The method provided in the invention can improve the structure and forming method of a copper pillar and can be applied in a semiconductor chip, making the semiconductor chip be provided with strong electric efficiency.

An electrolytic regeneration method of acidic etching waste solution is characterized in that the acidic etching waste solution is used as anolyte added or not added with an inhibitor with concentration of 0.05-0.5mol/L and acidic etching waste solution with mass concentration of diluted copper of 15-40g/L is used as catholyte; electrolysis is carried out for 3-8h under the conditions of 3-6V DC electrolyzing voltage and 500-2000A/m<2> current density, after electrolysis, metal copper powder is obtained in a cathode chamber; the anolyte and catholyte are mixed into acidic etching regeneration solution according to the volume ratio of 2-5:1. The method of the invention has the following advantages: the electric efficiency of copper ion regeneration is not less than 97%, the electric efficiency of copper powder precipitation is not less than 85% and the purity of the copper powder is higher than 99%; the copper powder can not damage ion films and the method has high reliability. No chlorine is precipitated during electrolytic regeneration and hydrochloric acid is unnecessary to be added, therefore, the method of the invention is environment-friendly.

Additional workloads are assigned among servers in a power-efficient manner. For each of a plurality of servers, a stored power efficiency/capacity utilization relationship is accessed, current component power consumption values are obtained, and a current power consumption efficiency is calculated. An amount of capacity utilization necessary to perform an additional workload is obtained, and a predicted power consumption efficiency is determined for each server. The predicted efficiency is determined using the current power consumption efficiency of the server and the stored relationship. The workload is then assigned to the server identified as having the greatest predicted power consumption efficiency. Alternatively, the workload may be assigned to the server identified as having the greatest improvement in power consumption efficiency.

The invention discloses a driver of a rotor-free sensor motor, which comprises a control circuit and a power driving circuit, and is characterized by having a three-phase phase-shift comparison circuit and a counter electromotive force zero crossing point detection circuit, wherein the counter electromotive force zero crossing point detection circuit comprises a phase-line voltage-division circuit, the output of the three-phase phase-shift comparison circuit is electrically connected with a single chip in the control circuit, and the counter electromotive force zero crossing point detection circuit is electrically connected with the single chip; when the motor runs at different rotation speeds and has different loads, the driver can change the phase correctly and is stable to start, thereby improving the electric efficiency of the motor; and the driver is applied to an electric vehicle, the electric vehicle is free from shaking after being started, and the driving miles of the vehicle can be improved.

Systems and methods are provided for controlling a setback mode of a power-consuming device, and for controlling setback recovery of power-consuming devices, in order to make setback and setback recovery more dynamic based on current environmental parameters and previous observed operating parameters, in order to enable more efficient operation of power-consuming devices resulting in reduced energy costs and increased power efficiency.

Disclosed is an air conditioner that provides a displaying apparatus that can present information on a predicted value of the integrated electricity per unit time, a predicted value of the electricity charge per unit time, and a predicted value of the amount of CO2 emission per unit time, at the start of operation. The air conditioner of the present invention comprises a predicted electricity efficiency speculating unit that speculates an electricity efficiency, which is an integrated electricity per unit time predicted from a set parameter set by the user this time, based on a stored value of the recent integrated electricity storing unit, a calculated result of the actual usage electricity efficiency calculating unit, and a compared result of the setting comparing unit, a predicted electricity efficiency calculating unit that calculates an electricity charge per unit time or a predicted amount of CO2 emission efficiency calculating unit that calculates an amount of CO2 emission per unit time, and a displaying unit that displays the electricity charge per unit time or the amount of CO2 emission per unit time or the integrated electricity charge per unit time, on a displaying apparatus, at a start of the air conditioner operation.

The invention discloses a carbon fiber base gradient composite anode material for manganese electrodeposition and a preparing method of the material. The anode material comprises a carbon fiber base body (1), an alpha-PbO2 composite coating (2) compounded on the surface of the carbon fiber base body and provided with nano graphene particles introduced, a beta-PbO2 composite coating (3) compounded on the surface of the alpha-PbO2 composite coating (2) and provided withSiO2 particles introduced, and a beta-MnO2 composite coating (4) covering the surface of the beta-PbO2 composite coating (3) and provided with RuO2 particles introduced. The prepared carbon fiber base gradient composite anode material is good in electrocatalytic activity, low in groove voltage, long in service life, low in cost and high in electric efficiency.

The invention relates to a heat preservation electric heating thermos, belonging to household appliances. The thermos comprises a heat preservation plug (13), a rubber asbestos pad (18), a sealing rubber pad (19), a liner cover (17), an electric heating pipe (26) installed into a vacuum heat preservation liner (21) of which an opening faces downwards, a water inlet and outlet pipe (71), an air inlet and discharge pipe (29), an NTC (negative temperature coefficient) thermistor (20) and a sewage discharge pipe (16), and the effects of automatically feeding water, stopping feeding water, heating the water inside the electric heating liner and powering off after the water is boiled are achieved through the functions of the water feeding gravity, the electric heating pipe (26), the water inlet and outlet pipe (71), the air inlet and discharge pipe (29), a quantitative water bucket (48), a water outlet (45), a water inlet (43), an opening annular plate (37), a stress bracket (39), a spring (32), a lever (61), a connecting rod (68), a crank (95), a sector-shaped crank (96), a three-way valve (9), a control rod (84), a short rod (119) and a steam type automatic power-off switch (105). Heat is preserved in a vacuum manner, and the hot water can flow out automatically; three levels of protection are provided for a circuit; air inlet and discharge channels enable the thermos liner to work safely; the water intake and the circuit can be controlled manually; and the electric efficiency is more than 0.9.

The invention discloses a generating capacity calculating method and system for a water-cooling photovoltaic-photothermal power generating system based on an n-dimensional trapezoid fuzzy set. The method includes: calculating the output power added value of a photovoltaic power generating panel; using the n-dimensional generalized trapezoid fuzzy set to calculate the effective sunlight intensity of a preset region, and calculating the power generating power of the photovoltaic power generating panel of a water-cooling photovoltaic system according to the effective sunlight intensity; calculating the electric efficiency added value of a water-cooling photothermal system; calculating the power generating power of the water-cooling photothermal system according to high-temperature high-pressure steam quantity and the electric efficiency added value; using a statistical analyzing method to calculate the n-dimensional generalized trapezoid fuzzy set of the multi-valued fuzzy uncertain relation between the output power of the water-cooling photovoltaic system and sunshine duration; calculating the generating capacity of the water-cooling photovoltaic system and the generating capacity of the water-cooling photothermal system to obtain the generating capacity of the water-cooling photovoltaic-photothermal power generating system. By the method, the generating capacity of the water-cooling photovoltaic-photothermal power generating system can be predicted accurately.

The invention is suitable for the field of protection circuits and provides a surge current suppression circuit and a lamp. The surge current suppression circuit comprises a resistor R1, a relay K1, a switching tube and a porcelain capacitor C1; the switching tube is at an off state at the instant of electrifying the circuit when voltages at two ends of the porcelain capacitor C1 are not high enough to reach the threshold voltage of the control end of the switching tube, and a coil circuit of an electromagnet of the relay K1 is open-circuited, a switch of the relay K1 is powered off, the current loop of an electric load needs to pass through the resistor R1 to form a working loop, and the surge current generated at the instant of electrifying can be eliminated by the resistor R1; and after the surge current peak passes, when the voltages at two ends of the porcelain capacitor C1 reach the threshold voltage at the control end of the switching tube, the switching tube is at an on state, the switch of the relay K1 is switched on, and therefore the resistor R1 is separated from the working circuit. The surge current suppression circuit has the advantages of small size, low cost and incapability of reducing the electric efficiency of a protected circuit.

The invention provides an electrolytic manganese anode plate and a method for manufacturing the same. The electrolytic manganese anode plate is manufactured by mixed compression moulding of graphite powder, glass or kaoline, silver powder, tin powder, ceruse, borax and water and high-temperature carbonization. The electrolytic manganese anode plate is manufactured by using graphite as main materials together with other auxiliary materials, and has the advantages of low production cost, long service life, low anode sediment percentage, high electric efficiency, good oxidation resistance, erosion resistance and mechanical strength, and capability of improving the output of electrolytic manganese and reducing the production cost of the electrolytic manganese.