39 results about "Peak power output" patented technology

A system for destabilizing improvised explosive devices includes a radio transmitter means for generating a radio signal having (i) a selected carrier frequency, (ii) a selected amplitude modulation frequency, (iii) a selected peak power output, and (iv) a selected transmit duration. A directional antenna means is coupled to and fed by the radio transmitter means, for directing the radio signal onto a suspected improvised explosive device. The radio signal, upon being directed onto the suspected improvised explosive device, causes detonation of the device.

Fiber Bragg writing devices comprising solid state lasers are provided. The solid state lasers comprise optical parametric oscillators and emit moderate peak-power output beams at wavelengths which are suitable for efficient production of fiber Bragg gratings without causing embrittlement of the optical waveguide. These solid state lasers generate output beams with wavelengths of approximately 240 nm, in order to match the primary absorption peak in the ultraviolet range for a typical optical waveguide. Some of these solid state lasers generate tunable wavelength beams using an optical parametric oscillator (“OPO”), then generate harmonics of these tunable beams. Other lasers mix the tunable beam with fixed wavelengths derived from the pump laser to reach the desired output wavelength.

The invention provides a controlled hypergolic approach to using concentrated hydrogen peroxide in combination with certain hydrocarbons such as ethanol, methanol, methane as well as more common fuels such as gasoline, diesel, DME, JP5, JP8 and the like to generate a gas mixture primarily composed of hydrogen and carbon dioxide. Because air is not used as the oxygen source, this novel process does not allow the formation of nitrous oxide (NOx) compounds, thereby avoiding the primary source of nitrogen contamination as well. The process is executed in a constraining system on a micro scale such that the resulting hydrogen supply is self-pressurizing. This enables the incorporation of an “on-demand” hydrogen fuel source for a variable output fuel cell power plant such as those proposed for use in automobiles, marine vessels and stationary power sources. In another embodiment of the present invention hydrogen peroxide is catalytically, or thermally reacted to provide H2O vapor and O2. When this gaseous stream is introduced to the cathode of the fuel cell, the percent concentration of oxygen is increased with no corresponding increase in the parasitic power demand made by an air-moving device. This use of H2O2 as an oxygen source may be continuous, intermittent or limited to specific instances when peak power output demands or high transient loads are placed upon the FCPS.

A computer-implemented method dynamically limits peak power consumption in processing nodes of an IHS. A power management micro-controller receives processing node-level power-usage and workload data from several node controllers, including current power consumption and a current workload, for each processing node within the IHS. A total available system power of the IHS is identified including a peak power output capacity and a sustained output power capacity. At least one node peak power threshold is determined based on the power-usage and workload data for each of the processing nodes. The node controllers are triggered to determine and set a device peak power limit for each of several variable performance devices within each of the processing nodes based on the node peak power threshold, wherein each of the variable performance devices dynamically adjusts a value of a corresponding device performance metric based on the device peak power limit.

The invention discloses a peak power prediction method for a power battery, relates to a peak power prediction technology for the power battery, and aims to improve the peak power prediction accuracy for the power battery. The method disclosed by the invention comprises the following two parts: A, parameter online estimation based on a simplified electrochemical impedance spectrum equivalent circuit model and fractional order combined kalman filtering; B, a battery peak power prediction method based on decomposition of zero-state response and zero-input response. According to the invention, the simplified impedance spectrum model comprising a fractional order component is selected as a reference model for the battery peak power prediction, so that the peak power prediction method based on the model not only can accurately predict short-time peak output power of the battery, but also can accurately predict the peak power output capacity of the battery within a longer time period. The peak power prediction method is suitable for online peak power prediction of an electric car.

A mode-locked integrated semiconductor laser has a gain section and an absorption section that are based on quantum-confined active regions. The optical mode(s) in each section can be modeled as occupying a certain cross-sectional area, referred to as the mode cross-section. The mode cross-section in the absorber section is larger in area than the mode cross-section in the gain section, thus reducing the optical power density in the absorber section relative to the gain section. This, in turn, delays saturation of the absorber section until higher optical powers, thus increasing the peak power output of the laser.

A computer-implemented method dynamically limits peak power consumption in processing nodes of an IHS. A power management micro-controller receives processing node-level power-usage and workload data from several node controllers, including current power consumption and a current workload, for each processing node within the IHS. A total available system power of the IHS is identified including a peak power output capacity and a sustained output power capacity. At least one node peak power threshold is determined based on the power-usage and workload data for each of the processing nodes. The node controllers are triggered to determine and set a central processing unit (CPU) peak power limit for each of several CPUs within each of the processing nodes based on the node peak power threshold, wherein each of the CPUs dynamically adjusts an operating frequency based on the CPU peak power limit.

Electronic circuitry for high-power, high-frequency excitation of electromagnetic acoustic transducers (EMAT) without the use of a matching transformer is described. This circuit contains a least 4 switching devices such as power Mosfet transistors, arranged in an H-Bridge configuration that are designed to drive various EMATs over a wide range of frequencies. The switching devices can be connected in parallel with respect to the H-Bridge and switched in sequence for greater power output and variety of wave forms. This circuit configuration can provide a many excitation waveforms including, Churp, Hemming window tone burst, rectangular tone burst and Barker Code wave forms.An improved electronic pulser circuit based on the H-bridge topology is designed for driving the sensor coils of an electromagnetic acoustic transducer (EMAT) to correct the disadvantages of conventional H-bridge pulsers and pulsers that require the use of an output transformer. A plurality of switching devices, primarily power Mosfets, are connected in parallel and augmented with support circuitry to provide improved performance in terms of increased power output, stability, reduced noise and complex output wave forms. This improved design provides for the application of modulated pulses such as multi-pulse, multi-frequency tone bursts of peak power outputs in excess of 20 thousand watts and frequencies in excess of 10 thousand Hertz.

With the growing demand of oil products in the world, this invention can help curb the fuel consumption rate of trucks / large motor vehicles without reducing peak power outputs. A vehicle having a “dual series” hybrid power systems includes two liquid fueled internal combustion engines, each engine having a generator directly connected. There is an electric motor for drivability directly connected to one or more ground engaging wheels. A first electrical storage device (battery pack) stores electricity that powers the electric motor. Two voltage reducers are coupled between both of the generators and the first electrical storage device and has an accessory voltage output, which has a lower voltage than the charging power output of the generators, to keep the accessory second electrical storage device fully charged.

The invention provides a controlled hypergolic approach to using concentrated hydrogen peroxide in combination with certain hydrocarbons such as ethanol, methanol, methane as well as more common fuels such as gasoline, diesel, DME, JP5, JP8 and the like to generate a gas mixture primarily composed of hydrogen and carbon dioxide. Because air is not used as the oxygen source, this novel process does not allow the formation of nitrous oxide (NOx) compounds, thereby avoiding the primary source of nitrogen contamination as well. The process is executed in a constraining system on a micro scale such that the resulting hydrogen supply is self-pressurizing. This enables the incorporation of an “on-demand” hydrogen fuel source for a variable output fuel cell power plant such as those proposed for use in automobiles, marine vessels and stationary power sources. In another embodiment of the present invention hydrogen peroxide is catalytically, or thermally reacted to provide H2O vapor and O2. When this gaseous stream is introduced to the cathode of the fuel cell, the percent concentration of oxygen is increased with no corresponding increase in the parasitic power demand made by an air-moving device. This use of H2O2 as an oxygen source may be continuous, intermittent or limited to specific instances when peak power output demands or high transient loads are placed upon the FCPS.

A method for driving a neutral point-clamped multi-level voltage source inverter supplying a synchronous motor is provided. A DC current is received at a neutral point-clamped multi-level voltage source inverter. The inverter has first, second, and third output nodes. The inverter also has a plurality of switches. A desired speed of a synchronous motor connected to the inverter by the first second and third nodes is received by the inverter. The synchronous motor has a rotor and the speed of the motor is defined by the rotational rate of the rotor. A position of the rotor is sensed, current flowing to the motor out of at least two of the first, second, and third output nodes is sensed, and predetermined switches are automatically activated by the inverter responsive to the sensed rotor position, the sensed current, and the desired speed.

The disclosure relates to a portable emergency energy-storage system with intelligent protection, including a power lithium battery pack, a charging management module, a deformation detecting and protecting module for lithium battery, a BMS protection module for lithium battery, an MCU module, an inverter module, a peak power output enhancement module, an output protection module, a temperature detecting module and an active cooling module. The MCU module and the BMS protection module for lithium battery provide double protection for the lithium battery pack on both hardware and software levels. The deformation detecting and protecting module for lithium battery is connected to the MCU module for monitoring whether the configuration of the lithium battery pack is within a safe range in real time so as to achieve a triple protection for the lithium battery pack. The disclosure has the following advantages: The disclosure provides double protection on both software and hardware levels for the security of entire system, so that the safety of the lithium battery is significantly improved without any significant increase in cost. Thus, the finished products will be more cost-effective.

The present invention describes a technique for achieving high peak power output in a laser employing single-stage, multi-pass amplification. High gain is achieved by employing a very small “seed” beam diameter in gain medium, and maintaining the small beam diameter for multiple high-gain pre-amplification passes through a pumped gain medium, then leading the beam out of the amplifier cavity, changing the beam diameter and sending it back to the amplifier cavity for additional, high-power amplification passes through the gain medium. In these power amplification passes, the beam diameter in gain medium is increased and carefully matched to the pump laser's beam diameter for high efficiency extraction of energy from the pumped gain medium. A method of “grooming” the beam by means of a far-field spatial filter in the process of changing the beam size within the single-stage amplifier is also described.

The invention provides a power output control method of an electric car. The method comprises the following steps: determining whether to operate the electric car to enter a peak power use mode; if the electric car enters the peak power use mode, outputting power according to a maximum pulse peak power sheet of a power battery of the electric car; estimating the remaining time that the power battery can supply the peak power; outputting different peak power based on different depth of an accelerator pedal, and updating the remaining time; entering a protecting mode in case of insufficient time, and then smoothly entering a normal working mode; in addition, when a driver controls the car to exit the peak power use mode, the electric car also enters the normal working mode. According to the method, the power is output based on the peak power of the power battery when the electric car needs the output of the maximum power, thus the power of the power battery can be utilized to the maximum, and moreover, the requirement of outputting the maximum power of the electric car can be fully met, and as a result, the driving experience of the electric car driver can be increased, and the power can be stably output.

A feed forward amplifier employing a new adaptive controller and method is disclosed. The controller aligns both a gain adjuster and phase adjuster of a first cancellation loop. The phase adjuster may be controlled following a standard approach. However, the gain adjuster is offset intentionally causing an incomplete cancellation, increasing the signal power passing through the error amplifier. If the gain adjuster is offset low, below the gain adjustment required to maximize carrier cancellation, peak power output from the main amplifier is reduced while the second loop maintains constant system output power. If the gain adjuster is offset high, peak power output from the error amplifier is reduced while the second loop maintains constant system output power. By controlling the gain adjuster offset from full first loop cancellation, the feed forward amplifier can be optimized for the power handling capabilities of the main and error amplifiers. A system and method of specifying and controlling the steady-state offset of the first loop gain adjuster is also disclosed. By altering the cost function of the first loop gain, the desired gain adjuster offset becomes the steady-state adjustment. Floors and penalties are incorporated into the first loop gain minimization approach to allow precise specification of the gain adjuster offset. The gain adjuster offset can be controlled at will to optimize the feed forward system even when the operating conditions or goals are varying.

The invention relates to a peak power intensifier and a high peak power MOPA fiber laser. The peak power intensifier comprises a master oscillator assembly and a power amplification assembly. The master oscillator assembly comprises a seed resource laser and a forward isolator. The power amplification assembly comprises a plurality of diode-pumped lasers, a beam combiner and a peak power intensifier. The peak power intensifier comprises a diode-pumped module, a first collimating lens, a second collimating lens, an input tail fiber and an expanded beam lens. After a laser signal is output from the beam combiner, the laser signal sequentially passes through the first collimating lens, the diode-pumped module, the second collimating lens and the expanded beam lens, and then a high peak power laser signal is output. The peak power intensifier directly replaces a main amplification light path in an optical fiber MOPA structure, and the high-power isolator serves as the main amplification light path in the MOPA laser to directly output light, as a result, the light path optical fiber length can be reduced greatly, the nonlinear effect of a light path amplification system is effectively restrained, and the peak power output by the laser is increased.

The invention provides a controlled hypergolic approach to using concentrated hydrogen peroxide in combination with certain hydrocarbons such as ethanol, methanol, methane as well as more common fuels such as gasoline, diesel, DME, JP5, JP8 and the like to generate a gas mixture primarily composed of hydrogen and carbon dioxide. Because air is not used as the oxygen source, this novel process does not allow the formation of nitrous oxide (NOx) compounds, thereby avoiding the primary source of nitrogen contamination as well. The process is executed in a constraining system on a micro scale such that the resulting hydrogen supply is self-pressurizing. This enables the incorporation of an 'on-demand' hydrogen fuel source for a variable output fuel cell power plant such as those proposed for use in automobiles, marine vessels and stationary power sources. In another embodiment of the present invention hydrogen peroxide is catalytically, or thermally reacted to provide H2O vapor and O2. When this gaseous stream is introduced to the cathode of the fuel cell, the percent concentration of oxygen is increased with no corresponding increase in the parasitic power demand made by an airmoving device. This use of H2O2 as an oxygen source may be continuous, intermittent or limited to specific instances when peak power output demands or high transient loads are placed upon the FCPS.

The invention is optical configurations for constructing laser oscillators or laser amplifiers that comprise an extremely short fiber (typically tens of cm long or below, e.g. 5 cm to 30 cm). In order to overcome the absorption limitation due to the very short length of the fiber, the present invention employs a multi pump-pass scheme for pump light confinement. This scheme is based on the small angular overlap between the lasing and pump beams. The multi pump-pass method of the invention leads to efficient fiber laser oscillators and amplifiers having pulse duration of a few ns, with high average and peak power output that is comparable to the state-of-the-art solid state lasers.

A computer-implemented method dynamically limits peak power consumption in processing nodes of an IHS. A power management micro-controller receives processing node-level power-usage and workload data from several node controllers, including current power consumption and a current workload, for each processing node within the IHS. A total available system power of the IHS is identified including a peak power output capacity and a sustained output power capacity. At least one node peak power threshold is determined based on the power-usage and workload data for each of the processing nodes. The node controllers are triggered to determine and set a device peak power limit for each of several variable performance devices within each of the processing nodes based on the node peak power threshold, wherein each of the variable performance devices dynamically adjusts a value of a corresponding device performance metric based on the device peak power limit.

The invention discloses a method for controlling peak power output of power supplier. The power supplier determines the working period of a power switch by comparing a current sensing signal and a dynamically adjustable current limiting threshold, the current sensing signal represents the magnitude of current in the power switch. The invention is characterized in that the method comprises the following steps: A. supplying the present current limiting threshold; and B. estimating the next current limiting threshold according to the present current limiting threshold and the current sensing signal. The method and device for controlling peak power output of power supplier in the invention have the advantage of narrowing error range of output power of power supplier.

Circuitry for high-power, high-frequency excitation of electromagnetic acoustic transducers (EMAT) without the use of a matching transformer is described. This circuit contains at least 4 switching devices, arranged in an H-Bridge configuration to drive EMATs over a range of frequencies. The switching devices can be connected in parallel with respect to the H-Bridge and switched in sequence for greater power output and variety of wave forms including, Churp, Hemming window tone burst, rectangular tone burst and Barker Code wave forms. A circuit for driving sensor coils of an EMAT to correct the disadvantages of conventional pulsers. A plurality of switching devices are connected in parallel and augmented with support circuitry to provide increased power output, stability, reduced noise and complex output wave forms. This design provides for the application of modulated pulses such as multi-pulse, multi-frequency bursts with peak power outputs over 20,000 watts and frequencies over 10,000 Hertz.

The invention provides a tracking control method of a peak power output point of a solar cell array, namely MPPT. The method comprises the steps that an MPPT program starts running so as to disturb the output voltage of a power bus of the solar cell array and reduce the output voltage of the solar cell array, whether the output power of the solar cell array is increased or not is observed, and ifthe output power is increased, voltage disturbance continues; if the output power is reduced, the output current of the power bus of the solar cell array is disturbed so as to reduce the output current of the solar cell array, whether the output power of the solar cell array is increased or not is observed, if the output power is increased, current disturbance continues, and otherwise, voltage disturbance is conducted till the output power approximates to the peak power point of the solar cell array. According to the tracking control method of the peak power output point of the solar cell array, MPPT control over the solar cell array is conducted by implanting a special MPPT control program module into aircraft energy lower-computer software, and the solar cell utilization rate can be remarkably improved without increasing the hardware cost.

A power system cooling device comprises a first oil pump, a main pressure regulating valve, a cooling flow control device and a second oil pump. The output end of the first oil pump is connected withthe input end of the main pressure regulating valve, the feedback end of the main pressure regulating valve and the actuator connecting port, the cooling output end of the main pressure regulating valve is connected with the input end of the cooling flow control device, and the oil return output end is connected with an oil recovery device connecting port; the output end of a cooling flow controldevice and the output end of the second oil pump are connected with the input end of the oil cooler interface, the cooling flow control device controls the flow passing through the cooling flow control device, and the output end of the oil cooler interface is connected with a motor cooling channel. When the first oil pump or the second oil pump is used respectively, the above devices all can meetthe cooling requirement of the motor common working conditions (continuous power / rated power output), and when the two oil pumps are used simultaneously, the cooling requirement that the motor outputswith the peak power can be met.

Said invention provides a wide range adjustment output power device for large power electromagnetic oven. Said device is a frequency conversion power adjusting device in peak power output, LC loop being voltage resonance state its resonant frequency a little less than working frequency of power switching tube being inductive load, then increasing loop inductive resistance loop current descent, loop power factor descent furnace output power reducing land In output power descent electromagnetic oven wire coil obtained power descent, inversely reducing loop working frequency be able to raise output power. So the less the output power is, the IGBT heating is reduced, that solves the bottle neck of electromagnetic oven.

The invention discloses a novel semiconductor laser medical heating regulation and control method based on a semiconductor laser output mode. According to the semiconductor laser medical heating regulation and control method, each cycle mainly consists of a heating period and a cooling period, laser radiation is stopped in the cooling period, and heating is boosted to realize an effective treatment temperature in a wave manner in the heating period of each cycle. By adopting the novel semiconductor laser medical heating regulation and control method, a semiconductor laser chip is allowed to output laser with relatively high peak power, so that the requirements on laser medical power can be met through a relatively small amount of laser chips, and the cost is lowered; in addition, the cooling waiting time is shortened, the working efficiency is improved, and meanwhile the ache of a patient can be effectively alleviated.

The invention provides a power output control method of an electric car. The method comprises the following steps: determining whether to operate the electric car to enter a peak power use mode; if the electric car enters the peak power use mode, outputting power according to a maximum pulse peak power sheet of a power battery of the electric car; estimating the remaining time that the power battery can supply the peak power; outputting different peak power based on different depth of an accelerator pedal, and updating the remaining time; entering a protecting mode in case of insufficient time, and then smoothly entering a normal working mode; in addition, when a driver controls the car to exit the peak power use mode, the electric car also enters the normal working mode. According to the method, the power is output based on the peak power of the power battery when the electric car needs the output of the maximum power, thus the power of the power battery can be utilized to the maximum, and moreover, the requirement of outputting the maximum power of the electric car can be fully met, and as a result, the driving experience of the electric car driver can be increased, and the power can be stably output.

The invention discloses a Doherty amplifier circuit. The Doherty amplifier circuit comprises: a splitter having: a splitter-input-terminal for receiving an input signal; a main-splitter-output-terminal; and a peaking-splitter-output-terminal; a main-power-amplifier having a main-power-input-terminal and a main-power-output-terminal, wherein; the main-power-input-terminal is connected to the main-splitter-output-terminal; and the main-power-output-terminal is configured to provide a main-power-amplifier-output-signal; a peaking-power-amplifier having a peaking-power-input-terminal and a peaking-power-output-terminal, wherein: the peaking-power-input-terminal is connected to the peaking-splitter-output-terminal; and the peaking-power-output-terminal is configured to provide a peaking-power-amplifier-output-signal. The splitter, the main-power-amplifier and the peaking-power-amplifier are provided by means of an integrated circuit.