1538 results about "High power output" patented technology

A vertical axis windmill is provided wherein the amount of wind directed to blades in the power producing part of rotation and the mechanical load of multiple generators is controlled by a feedback control to maintain a relatively constant rotational frequency of the shaft of the windmill. In a preferred embodiment, two wind foils extend radially outwardly from the blades to thereby provide a scoop capable of pulling in more air than would normally be received by the blades. The wind foils then direct the wind flow to the power producing part of rotation of the blades for maximum power output, when necessary. The wind foils can close to control the wind flow to the blades. The generating capacity of a plurality of generators is also controlled in response to shaft rotation to maintain substantially constant shaft rotation.

Spiral coils generate very powerful electromagnetic fields by operating with two different but simultaneous resonant behaviors. Quarter-wave resonance is established by adjusting the frequency (and wavelength) of a radiofrequency (RF) voltage source until the length of the spiral conductor is equal to ¼ of the wavelength of the alternating voltage. This generates an electromagnetic standing wave with at least one peak node and at least one null node. Inductive-capacitive (L / C) resonance is established by optimizing the thickness and width of the wire ribbon used to make the spiral coil. When inductance and capacitance are balanced, the current response will synchronize with the voltage input, creating in-phase behavior, minimal total impedance, and maximal power output. If two such coils are placed near each other, they will create an extremely powerful electromagnetic field between them, which can promote chemical and plasma reactions involving charged particles such as ions or plasma particles, possibly including nuclear fusion reactions.

At least one computer system receives power from a power system having a maximum power output based on a nominal power consumption of the at least one computer system. The power system is operable to detect an amount of power consumed by the at least one computer system, and compare the power consumption to a threshold based on the maximum power output of the power supply. The power system is operable to place one or more components of the at least one computer system in a lower-power state to reduce power consumption in response to the amount of power consumed by the at least one computer system exceeding the threshold.

An architecture is described for digital multi-phase modulators (MPM) that leads to an efficient, high performance hardware realization. The combined modulator, switching phases and output filter can be viewed as a multi-level digital to analog converter with high power output, or a power D / A, and concepts used in D / A converters are leveraged to achieve high performance and hardware efficiency. The modulator can be split into three functional blocks including a decoder that determines how many phases are on at any time, a selector that determines which phases are on at any time, and a single high resolution module that is time shared among all phases. The resulting architecture scales favorably with a large number of phases, fs, facilitates fast update rates of the input command well above the single phase switching frequency and is compatible with a wide range of known DPWM techniques for the LSB module and resolution-enhancement techniques such as dithering or Σ-Δ modulation.

An ergonomically efficient cordless power tool system having desired power-to-weight ratios may be configured by reducing weight in one or more constituent weight groups of a given cordless power tool system, while maintaining or improving the total power output of the tool system. An example cordless power tool system may be configured to output a maximum power of at least 475 watts, and have a maximum power output to weight ratio of at least 70 watts per pound (W / lb).

An ergonomically efficient cordless power tool system having desired power-to-weight ratios may be configured by reducing weight in one or more constituent weight groups of a given cordless power tool system, while maintaining or improving the total power output of the tool system. An example cordless power tool system may be configured to output a maximum power of at least 475 watts, and have a maximum power output to weight ratio of at least 70 watts per pound (W / lb).

A wind turbine blade made of a fixed blade section with an integral mounting flange for attachment to a wind turbine hub. A moveable blade section is attached to the fixed blade section and is free to move in a longitudinal direction relative to the fixed blade section. A positioning device controllably positions the moveable blade section to vary the overall length of the blade. This allows the wind turbine's rotor diameter to be adjusted. The rotor diameter can be increased in order to provide high power output in low wind conditions and it can be decreased in order to minimize loads in high wind conditions.

A wireless broadband communications system that can maintain high data rates while taking into account channel interference resulting from operating in shared frequency bands, signal fading resulting from dynamic channel degradation, and signal distortion resulting from compliance with maximum power output regulations. In one mode of operation, the system performs adaptive modulation by transmitting a first signal over a selected channel using a first modulation mode having a level of distortion associated therewith resulting from operating the system at a predetermined maximum power output level. Next, a SINAD level is measured on the first channel. The level of distortion associated with the first modulation mode is then subtracted from the measured SINAD level to obtain a first noise level. In the event the first noise level is less than a noise level required to achieve an acceptable error rate in a next modulation mode, a second signal is transmitted over the selected channel using the next modulation mode.

A thermoelectric device that can exhibit substantially high specific power density is provided. The device includes core having a p-type element made from carbon nanotube and an n-type element. The device also includes a heat plate in and a cool plate, between which the core can be positioned. The design of the thermoelectric device allows the device to operate at substantially high temperature and to generate substantially high power output, despite being light weight. A method for making the thermoelectric device is also provided.

Systems and methods for improving operation of a hybrid vehicle are presented. In one example, an engine may be started in one of two ways depending on operating conditions. In particular, the engine may be started via a lower power output electric machine or a higher power output electric machine.

An industrial inspection handset is disclosed, comprising a battery assembly for providing power to the handset, wherein the battery assembly comprises a connector for connecting a battery charger, a battery circuit for communicating with a processor in the handset, and a battery charge indicator on the surface of the battery assembly connected to the battery circuit for providing a visual indication of the charge remaining in the battery assembly. A method of power management for an industrial inspection handset is also disclosed comprising the steps of setting a first maximum power output value for the camera illumination for the insertion, monitoring an imager signal processor, to determine that the gain value of the image signal processor is less than a predetermined gain value, and setting a lower second maximum power output value for the camera illumination in order to increase the gain value. Additional methods of power management for an industrial inspection handset are disclosed, comprising the steps of setting a first maximum power output value for the articulation of the insertion tube attached to the handset, monitoring the operator controls to determine that there has been no articulation for a first predetermined amount of time, monitoring the position of the insertion tube to determine whether the insertion tube position is inside or outside of a predetermined zone of coordinates, and reducing or turning off the articulation power to hold the position of the insertion tube.

A high power low RPM direct current electric motor is disclosed whereby the high power output is achieved in one of two ways or both. In the first case, the need for cooling is reduced simultaneously along with an increase in the utilization of the magnetic field present in the motor permanent magnets. This is achieved by wrapping the electromagnet core with windings that are capable of demagnetizing the rotor permanent magnets under stall conditions. Interlocking motor circuitry is provided which prevents the full activation of these motor windings until motor RPM values reach a safe level. This increases motor power while decreasing resistive losses in electromagnet windings. In the second case, the rotary portion consists of a large diameter relatively flat rotor containing permanent magnets and having built in vanes for moving air over the electromagnet stator windings providing forced air cooling.

The present invention relates to a photovoltaic three phase synchronization control method realizing maximum power tracking swiftly and stably, which belongs to the technical field photovoltaic power generating control. The method includes the steps as follows: judging the DeltaP / DeltaV value according to the power difference DeltaP between the current time k and the previous time and the voltage difference DeltaV; working out the Iref(k) when the photovoltaic array produces the maximum power; using the Iref(k) to adjust the uq* under the coordinates in vectorial synchronous rotation with the electric network voltage; acquiring six ways of space vectorial SVPWM impulse series according to the rotation angle degree Theta of the three phase electric network voltage, with the aim to control the inverter in order to ensure that the output current of the photovoltaic inverter has the same phase position as that of the mains voltage while ensuring the photovoltaic array is realizing the maximum power output tracking. The power factor is 1. The present invention also can adjust the Idref(k) according to local load requirements, therefore achieving adjustment to the power factor, with low synchronization current harmonic wave distortion factor.

An electronically reconfigurable battery includes a number of battery modules selectively interconnected by a number of electronic switches, wherein a selectable number of battery modules may be connected either in a series configuration or in a parallel configuration, as a result of placing selected switches of said plurality of switches in open states or closed states. In a parallel configuration, the battery provides power to a primary load, such as a propulsion load for a vehicle. In a series configuration, the battery is configured to provide a high voltage and high power output to a short-term and / or pulsed load, such as an additional load provided on the vehicle. Current from the battery is limited in one of three ways: a) by the batteries themselves; b) a current limiting device or system in series with the total erected battery; or c) a single level power converter or current limiter that is used to erect and charge the capacitor bank in a sequential one level at a time manner until the battery is fully erected and the capacitor is fully charged.

The present invention relates to a power amplifier device having a power amplifier, and an object of the invention is to enable efficient use of the power amplifier without causing any problems in the operation of the power amplifier. In order to achieve the object, a controller block 11 judges on the basis of an estimative output power value whether a power amplifier is in a first period in which it performs low power output operation or in a second period in which it performs high power output operation, where, in the first period, the controller block 11 activates a DC / DC converter 2 to supply a power-supply voltage Vdd2 as the operating power-supply voltage to the HPA 1, and in the second period, the controller block 11 controls the DC / DC converter 2 between active and inactive states and a switch 3 between on and off states on the basis of a detected power-supply voltage value VM obtained from an operating power-supply voltage detecting circuit 13, so as to supply one of the power-supply voltage Vdd2 and a power-supply voltage Vdd3 as the operating power-supply voltage.

In a distribution winding stator using a coil for a rectangular conductor, a coil end is made smaller than before, and the reduction in the current density is aimed, so that a rotary electric machine of a small size and a high power output is obtained. A conductive wire of a rectangular shape in cross section is double-wound, and is allowed to be shifted by the whole width of the wire having double-wound the crowns of both ends, and is formed to crank shape so as to become a length within the range of the intervals of the adjacent slots, so that the conductive wire is formed by being inserted into the slot of the stator.

A high power low RPM direct current electric motor is disclosed whereby the high power output is achieved in one of two ways or both. In the first case, the need for cooling is reduced simultaneously along with an increase in the utilization of the magnetic field present in the motor permanent magnets. This is achieved by wrapping the electromagnet core with windings that are capable of demagnetizing the rotor permanent magnets under stall conditions. Interlocking motor circuitry is provided which prevents the full activation of these motor windings until motor RPM values reach a safe level. This increases motor power while decreasing resistive losses in electromagnet windings. In the second case, the rotary portion consists of a large diameter relatively flat rotor containing permanent magnets and having built in vanes for moving air over the electromagnet stator windings providing forced air cooling.

A battery which realizes high power output, cost reduction and increase in capacity. An enlarged port section is formed in an open end of a battery case. A ring-shaped support rack section is formed inside of the enlarged port section, and a ring-shaped insulating gasket is set on and supported by the support rack section. The battery has a collector of one pole, to which an end portion of an electrode plate of one pole protruding from an electrode plate group is connected. A ring and flange-shaped collar section, which is tiered with a step, is provided in the periphery of the collector, and the flange-shaped collar section is set on the bottom face of the insulating gasket. A port sealing member, in which a filter section and a cap-shaped terminal section are integrated with each other, is connected onto the collector. The enlarged port section is inwardly caulked, to fix the flange-shaped collar section of the collector and the periphery of the port sealing member, which are overlaid with each other, with the insulating gasket interposed therebetween.

A wavelength tunable laser comprising a laser diode and a closed external cavity formed by one or more optical resonators either horizontally or vertically coupled to adjacent waveguides. The optical resonator primarily functions as a wavelength selector and may be in the form of disk, ring or other closed cavity geometries. The emission from one end of the laser diode is coupled into the first waveguide using optical lens or butt-joint method and transferred to the second waveguide through evanescent coupling between the waveguides and optical resonator. A mirror system or high reflection coating at the end of the second waveguide reflects the light backwards into the system resulting in a closed optical cavity. Lasing can be achieved when the optical gain overcomes the optical loss in this closed cavity for a certain resonance wavelength which is tunable by changing the resonance condition of the optical resonator through reversed biased voltage or current injection. Multiple optical resonators may be used to reduce the lasing threshold and provide higher power output. With monolithic integration, more optical devices can be integrated with the tunable laser into the same substrate to produce optical devices that are capable of more complex functions, such as tunable transmitters or waveguide buses.

A valve control apparatus for an internal combustion engine is provided which is capable of optimally setting the closing timing of an engine valve according to operating conditions of the engine while suppressing an increase in the inertial mass of the engine valve to the minimum, thereby attaining improvement of fuel economy, and realization of higher engine rotational speed and higher power output in a compatible fashion, and reducing costs and weight thereof. The valve control apparatus controls opening and closing operations of an engine valve. A cam-type valve actuating mechanism actuates the engine valve to open and close the engine valve, by a cam which is driven in synchronism with rotation of the engine. An actuator makes blocking engagement with the engine valve having been opened, to thereby hold the engine valve in an open state. An ECU controls operation of the actuator to thereby control closing timing of the engine valve.

This invention discloses an electronic cigarette circuit, including an IC, an airflow sensor connected to the IC, a heating wire and a power supply VDD connected to the IC and the heat wire, the electronic cigarette circuit further including a switch device, the switch device being connected with the heating wire and the power supply VDD to form a circuit loop. The electronic cigarette circuit of the present invention adopts a switch device placed outside the IC, and the IC, the heating wire and the power supply form the circuit loop, so as to achieve high power output to the heating wire, and a large amount of smoke, with a simple circuit structure for ease mass production.

The invention relates to an aluminum air fuel cell system, and particularly relates to the aluminum air fuel cell system with a temperature control system, a hydrogen discharging system and a filtration system and having a circulating electrolyte. The system includes an electrolyte tank, a cell stack and a ventilation system; also includes an electrolyte supplied system, an electrolyte return system, the hydrogen discharging system, a temperature measurement system, the filtration system and a heat dissipation system. The system can realize circulation of the electrolyte, effectively separates precipitation, controls a hydrogen content and an internal temperature of cells, meets requirements of high power output and long time running, and can be widely applied to the field of power cells for electric vehicles and large standby power supplies.

An integrated system for increasing power output from an internal combustion engine. System facilitates an interface for controlling and conditioning of the amount of intake air into an internal combustion engine. The system interfaces to a controller and provides critical data, an active intercooler, power buffer, and an electrically driven supercharger. An operator interface provides monitoring and control to a controller for expanded operator control. A power buffer relieves host power system from loading during high demand operation. A system of advanced sensors and processing from a controller combine to facilitate maximum power output with reduced risks. Active heat removal enables system operation in a vehicle at rest or in traffic. Active conditioning system flexibility facilitates improved implementation of cold temperature environment starting and operation. A low cost option with commercial non-positive displacement blowers implements affordable enhancements for internal combustion engines.

A two stage power amplifier circuit that employs both a DC to DC converter and sliding bias controller to improve power amplifier efficiency. The control signal that is generated by the power detector circuit to control the input voltage to the DC to DC converter is also used to provide the reference voltage that controls the sliding bias controller. The sliding bias controller reduces the quiescent current of the power amplifiers by reducing the bias currents, and thus the DC voltage at lower power output levels driving the power amplifiers. This causes the power amplifiers to operate at or near higher efficiency Class B operation at lower power output levels. As the power level increases, the sliding bias controller reduces its control on the bias currents so that the power amplifier can be driven at necessary higher power output levels.

An electric power steering removes external wiring connecting between an electric motor and a control unit, whereby the influence of radiation noise caused by a PWM operation can be reduced. In addition, the heat radiation and assemblability of the electric motor and the control unit can be improved, while achieving high power output. A housing 64 with a metal substrate 61 fixedly secured thereto is arranged at a side opposite to an electric motor 30. The cooling fins are formed on an outer side of a housing 64 and on an outer side and an inner side of a cover 65. A metal substrate 61, a large current substrate 62 and a control substrate 63 are arranged inside of the housing 64 and the cover 65 in a laminated structure.

A method of forming nanoporous carbon material includes the steps of providing a natural carbonaceous material, the carbonaceous material having pores being filled with at least one other material, and treating the carbonaceous material with a strong acid or a strong base, wherein the other material is removed from the pores to form a nanoporous carbon material having open pores available for organic electrolyte. The nanoporous carbon material can be used to form composite electrodes by impregnating the open pores with an organic electrolyte. Such electrodes can be used to form electrochemical double layer capacitors (EDLC), such as by disposing an electrically insulating layer comprising a plurality of nano-size dielectric particles together with a binder directly onto a surface of at least one of anode and the cathode, and interposing the electrically insulating layer between the anode and the cathode. EDLCs formed using the invention are low cost and provide large specific energy stored and low inner resistance resulting in high power output.

A sealed rechargeable battery containing an electrode unit and a liquid electrolyte in a metallic case with a bottom that is sealed with a closure assembly. The electrode unit includes a positive electrode and a negative electrode, each made up of a collector and electrode material paste coated thereon, wound around with a separator interposed therebetween. The closure assembly includes a metallic filter that forms an internal terminal and accommodates a safety mechanism provided in case of abnormal pressure rise caused by overcharging etc, a resin inner gasket, and a metallic cap that forms an external terminal superposed upon one another. A resin inner gasket is attached to the metallic filter and the end edge of the metallic filter is crimped to provide a seal. The metallic filter and all the metallic parts encased in the metallic filter are joined together by welding. This closure assembly design enables high power output and high-current discharge of the battery with low resistance.

Control features for a wind turbine that control the turbine over a range of wind speeds and under triggering conditions with reduced noise, cost, and reliability issues associated with other such controls. Control is accomplished via control electronics, which adjust the torque produced by the electrical output generation device (e.g., alternator) within the wind turbine. During normal operation, torque is adjusted for optimum aerodynamic performance and maximum output of power. In winds above rated power, the control circuit regulates torque to lower aerodynamic performance, as necessary to maintain desired power level output. In triggering conditions, such as during simultaneous control circuit failure and loss of some portion of the electrical output generation device in extreme winds, wind turbine control is accomplished by increasing torque (e.g., via a separate controller) from the electrical output generation device via shorting of windings, so as to cause retardation of blade rotation.

Systems and methods are provided for managing the batteries and the power source as a single combined output to power the load, allowing the system to use power source with reduced maximum power output, reducing system cost and complexity. Furthermore, the switch matrix controller efficiently and dynamically manages the internal power transfer to minimize the charging / discharging cycle of the batteries while ensuring that the power source and the batteries meet changing load power demand. Finally, maximizing charging time and having independent control of each battery increase power efficiency, prolong the operational life of the battery, and increase overall system life.

Disclosed is a Doherty amplifier which includes a carrier amplifier for always performing a signal amplification operation regardless of a level of an input signal, a peaking amplifier for performing an amplification operation, starting from a high power output where a level of an input signal is equal to or greater than a predetermined level, an output combination circuit for combining and outputting outputs of the carrier amplifier and the peaking amplifier, and an input division circuit for dividing an input signal into the carrier amplifier and the peaking amplifier, the Doherty amplifier including a carrier amplifier output harmonic impedance tuning network which is installed at a rear end of the carrier amplifier so as to tune an output harmonic impedance of the carrier amplifier, and a peaking amplifier output harmonic impedance tuning network which is installed at a rear end of the peaking amplifier so as to tune an output harmonic impedance of the peaking amplifier.