31results about How to "High power load" patented technology

A self-powered apparatus includes a solar power cell, a battery, and a load. The load may include one or more load functions performed using power provided by one or both of the solar power cell and the battery. The inclusion of a battery permits the solar power cell to be sized much smaller than if the solar power cell was the only supply of power. A programmable controller selectively regulates power provided to one or more load functions and also selectively regulates whether one or both of the power cell and battery supplies the power. Switching circuitry, controlled by the programmable controller, selectively couples one or both of the battery and the solar cell to supply energy for powering the load. In a preferred example embodiment, the controller couples the battery and/or solar cell to charge a super capacitor, which then is selectively controlled to power the load. The programmable controller determines and prioritizes load function power requirements, and based thereon, determines which load functions will be powered based the priority of the load function requirements and the amount of power that can be supplied by the solar power cell as supplemented by the battery.

A radiant electric heater has first, second and third heating zones (1, 2, 3) arranged substantially side-by-side. The first heating zone (1) is provided with at least one first heating element (9). The second heating zone (2) is arranged adjacent to the first heating zone and is provided with at least one second heating element (10). The third heating zone (3) is arranged adjacent to the second heating zone and is provided with at least one third and one fourth heating element (11, 12). A switch (15) is provided for switching between first, second and third heating states. In the first heating state the at least one first heating element (9) of the first heating zone (1) is energised alone, the at least one second, third and fourth heating elements (10, 11, 12) of the second and third heating zones (2, 3) being de-energised. In the second heating state the at least one first heating element (9) of the first heating zone (1) is electrically connected and energised in parallel with the at least one second heating element (10) of the second heating zone (2), the at least one third and fourth heating elements (11, 12) of the third heating zone (3) being de-energised.

An apparatus and method for closed-loop signaling over multiple channels in a telecommunication system. Channel condition for each channel is obtained, and transmission power loading per channel is determined according to channel condition. The information bit streams is transmitted via the multiple channels over a plurality of transmitter antennas according to the power loading per channel.

Evaporate thermal management systems for and methods of grazing incidence collectors (GICs) for extreme ultraviolet (EUV) lithography include a GIC shell interfaced with a jacket to form a structure having a leading end and that defines a chamber. The chamber operably supports at least one wicking layer. A conduit connects the wicking layer to a condenser system that support cooling fluid in a reservoir. When heat is applied to the leading end, the cooling fluid is drawn into the chamber from the condenser unit via capillary action in the wicking layer and an optional gravity assist, while vapor is drawn in the opposite direction from the chamber to the condenser unit. Heat is removed from the condensed vapor at the condenser unit, thereby cooling the GIC mirror shell.

The amount of power being output to the load is sensed by sampling the frequency of the pulse width modulation signal that is controlling the switch that is providing the power to the load. If the pulse width modulation signal has a high frequency, then it will be providing higher power to the load. As the power drawn by the load decreases, the frequency of the pulse width modulation power supply signal will decrease. By sensing and periodically sampling the frequency of the pulse width modulation signal that is providing power, the demand of the load can be quickly and accurately determined. As the power demand of the load decreases, the peak current that the power supply switch can provide also decreases. The permitted peak current dynamically changes to adapt to the power drawn by the load.

A power handling system of a digitally addressable lighting interface (DALI) system controls switches connected with a bus of the DALI system that powers lower power light sources. A power supply circuit receives energy conducted on the bus to the lower power light sources and conducts at least part of the energy to a capacitor. Electric energy is stored in the capacitor until the capacitor stores at least a designated threshold of input voltage of a controller. The capacitor powers the controller to close one or more switches using at least some of the stored electric energy.

Systems, assemblies and methods for thermally managing a grazing incidence collector (GIC) for EUV lithography applications are disclosed. The GIC thermal management assembly includes a GIC mirror shell interfaced with a jacket to form a sealed chamber. An open cell, heat transfer (OCHT) material is disposed within the metal chamber and is thermally and mechanically bonded with the GIC mirror shell and jacket. A coolant is flowed in an azimuthally symmetric fashion through the OCHT material between input and output plenums to effectuate cooling when the GIC thermal management assembly is used in a GIC mirror system configured to receive and form collected EUV radiation from an EUV radiation source.

Fuel cell systems and control methods including a fuel cell and a second energy source, such as a battery that is adapted to supplement the fuel cell. In addition, the fuel cell system utilizes a single bipolar switching module, such as an IGBT six pack module that is configured to implement a DC/DC converter, such as a DC/DC boost converter, for both the fuel cell and the battery. The fuel cell system also makes use of a controller that is configured to control either or both of input current and output voltage of the DC/DC converter.

A ceramic discharge lamp and a method of making the lamp includes a ceramic discharge chamber with two concave parts that are attached to each other at a seam, and a ceramic reflector directly attached to an exterior surface of the discharge chamber at the seam, or directly attached to a ceramic capillary that is attached to one of the two concave parts. The lamp finds particular application where focused light is required, such as injection of light into a fiber optic device. The lamp can be very small and has an advantage that the discharge chamber is isolated from the reflective surfaces so that the optically active parts of the reflector are not covered with salt from the preferred metal halide lamp fill.

The invention provides an integral direct drive device of a gantry crane, relating to a drive device in which a permanent magnet direct drive motor and a signal detector are manufactured into a whole. A radial radiating fin is arranged outside a shell; the shell is provided with a spindle; the spindle in the shell is connected with a permanent magnet direct drive motor rotor; a permanent magnet direct drive motor stator matched with the permanent magnet direct drive motor rotor is fixed in the shell; the spindle in the shell is connected with a signal detector rotor; and a signal detector stator matched with the signal detector rotor is fixed in the shell. The integral direct drive device is concise and compact, improves the drive control accuracy, strengthens the integral protection grade of products, simplifies the system structure of the gantry crane, saves the space, and is convenient to install, debug and maintain; in addition, by using the integral direct drive device, the system structure of the gantry crane can be effectively simplified, the system space is saved, the installation and debugging are more convenient and faster, and the cost of an elevator gantry crane system is reduced.

A loudspeaker, having a not necessarily rectangular, planar or constant thickness oscillating member, made of relatively thick, low density, stiff, acoustic insulating material, in an elongated form, surrounded by a solid frame, supporting the oscillating member in a minimum number of pivots or flexible elements, placed in areas of points of specific dynamic balance, like one end, center of mass and center of percussion about a certain axis of the oscillating member. The oscillating member is set in vibration by a permanent magnet driver having the voice coil attached to the oscillating member and the permanent magnet assembly supported by a bridge mounted across the frame. In an alternative preferred embodiment the oscillating member is built to incorporate at least one cavity filled with air or a gas different from air. In an alternative preferred embodiment the horizontally placed oscillating member has at least one voice coil immersed in a heat transferring fluid introduced in the cavity of the electromagnetic driver.

A microwave excited gas slab laser comprising a waveguide wherein the electrodes are covered with multi-layered stripes either forming a photonic band-gap or having a refractive index lower than 1.

The invention discloses a fluid curvature engine, fluid curvature engine equipment and a control method of the fluid curvature engine equipment. The fluid curvature engine is mainly composed of a flying disc shell, a multi-convex-ring disc wing and a high-speed fluid generator, the flying disc shell is an annular or disc-shaped open half cavity, the multi-convex-ring disc wing is annular or disc-shaped, and a plurality of protrusions with curvature radians are arranged on the upper surface of the multi-convex-ring disc wing in the circumferential fluid flowing direction. The fluid curvature engine gives full play to the principle that the combined action of fluid viscosity and high-speed fluid inertia blocks atmospheric pressure to generate a low-pressure area in a curvature reduction area of an upper convex surface so as to generate lift force, and high-speed fluid is controlled to circularly flow in the frisbee shell and repeatedly flow through an arc-shaped curvature upper convex curved surface of a multi-convex-ring disc wing; accordingly, a plurality of corresponding low-pressure areas are generated in the curvature reduction area of the upper convex face of the multi-convex-ring disc wing to generate lift force, the lift-drag ratio of the multi-convex-ring disc wing can be hundreds of, and the problems that an existing engine is small in thrust-weight ratio and insufficient in lift force can be solved. The equipment for providing driving force by adopting the fluid curvature engine is fluid curvature engine equipment.

The invention discloses a novel DC-to-AC conversion circuit and method. The circuit comprises a DC-to-AC module, a synchronous motor and a single-chip microcomputer. The input end of the DC-to-AC module is connected with a direct-current power supply, and the output end is in connection with the synchronous motor; the DC-to-AC module is also connected with the control end of the single-chip microcomputer; according to the invention, the working principle is simple, the cost is lower, and the motor works more stably; compared with the prior art, a higher-power load can be driven, a digital waveform with a certain frequency is provided by using the single chip microcomputer, the direct current 12V is converted into the digital waveform with a frequency to simulate an alternating current waveform, and then the synchronous motor is driven to work.