1282results about How to "Small weight" patented technology

A two-stage power converter that dynamically adjusts to output current requirements includes a first stage regulator that provides power to a second stage regulator. The first stage can be a buck converter, and the second stage can be a multiple-phase buck converter. The output voltage of the first stage (intermediate bus voltage Vbus) is varied according to the load current to optimize conversion efficiency. To provide maximum efficiency, the Vbus voltage is increased as load current increases. The Vbus voltage provided by the first stage can be varied by duty cycle or operating frequency control. In another embodiment, the switching frequency of the second stage is varied as output current changes so that output current ripple is held constant. In an embodiment employing a multiple-phase buck converter in the second stage, the number of operating phases are varied as output current changes.

Compounds of formula I which act as amylin agonists with respect to certain desired amylin activities and as calcitonin agonists with respect to certain desired calcitonin activities are provided. Such compounds are useful in treating disturbances in fuel metabolism in mammals, including, but not limited to diabetes mellitus, including Type I diabetes and Type II diabetes. The present invention also relates to methods of treating Type I diabetes, treating Type II diabetes and to methods of beneficially regulating gastrointestinal motility comprising administration of a therapeutically effective among of one of the compounds. Also provided are pharmaceutical composition comprising a compound of formula I and a pharmaceutically acceptable carrier.

A two-stage power converter that dynamically adjusts to output current requirements includes a first stage regulator that provides power to a second stage regulator. The first stage can be a buck converter, and the second stage can be a multiple-phase buck converter. The output voltage of the first stage (intermediate bus voltage Vbus) is varied according to the load current to optimize conversion efficiency. To provide maximum efficiency, the Vbus voltage is increased as load current increases. The Vbus voltage provided by the first stage can be varied by duty cycle or operating frequency control. In another embodiment, the switching frequency of the second stage is varied as output current changes so that output current ripple is held constant. In an embodiment employing a multiple-phase buck converter in the second stage, the number of operating phases are varied as output current changes.

The present invention is to provide a “vehicle windshield wiper for rain and snow dual purpose”, which comprises a bow elastic strip, some clamping devices, a strip scraper receptacle, a sheath cover, a strip scraper, two end ferrule caps and a truss saddle; Wherein, the sheath cover and two end ferrule caps totally envelope the bow elastic strip, clamping devices and strip scraper receptacle so that the snow and icy particles are blocked and separated out unable to intrude or gather in any space thereof; Thereby, the dual function of rain wiper and snow wiper of present invention eliminates the boring action in swapping between rain wiper and snow wiper during interim of snow and non-snow seasons so that it not only saves the extra expense in buying snow wiper for the consuming vehicle drivers but also totally obsoletes the conventional arm-supported snow wiper so as to eliminate the pollution burden incurred by the mass waste conventional snow wipers; Thus, it really possesses double effect in economic benefit and environmental protection.

A display device is provided. The display device includes: a display panel provided with a plurality of display electrodes, where the display electrodes are configured for displaying images, display electrodes located within a predetermined region of the display panel are defined as first electrodes, the first electrodes are configured for fingerprint sensing, and a stage during which the first electrodes perform the fingerprint sensing is defined as a fingerprint sensing stage; and a driving circuit configured to, provide display signals to the display electrodes to display the images, and provide a fingerprint sensing signal to the first electrodes during the fingerprint sensing stage and perform a self-capacitance detection on the first electrodes, to implement the fingerprint sensing. A driving circuit, a method for driving the display device, a liquid crystal display device and an electronic apparatus including the display device are provided.

The design of the low cost GPS / IMU positioning and data integrating method, which employs integrated global positioning system / inertial measurement unit enhanced with dual antenna GPS carrier phase measurements to initialize and stabilize the azimuth of the low cost GPS / IMU integrated system, is performed. The utilization of the raw carrier phase measurement for the integration speeds up the ambiguity search.

Improved regulation and transient response are provided by a power supply architecture providing both unregulated and regulated voltage converters in parallel but deriving input power from separate power supplies connected in series wherein regulated and unregulated branches each provide a substantially fixed and constant proportion of the output current. The series connection of input power sources may provide a further feedback mechanism in addition to feedback for regulation which enhances overall performance. As a perfecting feature of the invention, inductor-less resonant converters which are switched in an interleaved fashion may be used in the unregulated branch while substantially cancelling the characteristic large output voltage ripple thereof.

The invention relates to a large-flow aerosol sampling device, which is characterized in that the aerosol sampling device mainly comprises a macroparticle cutter, a concentrating separator and a sampler. The macroparticle cutter comprises an inner tube, an outer tube, a top cap, an insect preventing net cover and an air flow output pipe, wherein a circle of air flow inlets are arranged between the outer tube and the top cap; an air flow spray nozzle is formed between the inner tube and the outer tube; the air flow output pipe is arranged in the insect preventing net cover and fixed on the tapered bottom surface of the outer tube. The aerosol concentrating separator comprises an outer shell, and an upper spray nozzle and a lower spray nozzle which are respectively arranged, wherein a ventilation clearance is reserved between the upper spray nozzle and the lower spray nozzle, so as to form a preliminary spray nozzle separated by small particles; ventilation clearances are reserved among the lower spray nozzle and the air flow inlets, so as to form a secondary spray nozzle. The aerosol sampling device has the advantages of simple structure and small volume, and can be used for the concentration, the separation and the real-time monitoring of biological aerosol in the atmosphere.

Alteration of voltage input to a voltage regulator output stage from a Vbus regulator stage in a two-stage voltage regulator provides optimal Vbus voltage placement for a wide range of current loads to increase voltage regulator efficiency and is particularly suited to CPUs having power-saving sleep modes of operation. An optimal voltage is selected or developed in response to information concerning operational mode or current consumption of the powered device. As a perfecting feature of one embodiment of the invention in which a discrete Vbus voltage is selected based on operational mode, the selected voltage is adjusted to further optimize the matching of the Vbus voltage placement to the load and provides a continuous range of voltages. In a second embodiment the entire Vbus positioning function is performed in response to current load information. A feed-forward arrangement is provided to avoid transient spikes as the Vbus voltage placement is altered.

The present invention is to provide a “vehicle windshield wiper for rain and snow dual purpose”, which comprises a bow elastic strip, some clamping devices, a strip scraper receptacle, a sheath cover, a strip scraper, two end ferrule caps and a truss saddle; Wherein, the sheath cover and two end ferrule caps totally envelope the bow elastic strip, clamping devices and strip scraper receptacle so that the snow and icy particles are blocked and separated out unable to intrude or gather in any space thereof; Thereby, the dual function of rain wiper and snow wiper of present invention eliminates the boring action in swapping between rain wiper and snow wiper during interim of snow and non-snow seasons so that it not only saves the extra expense in buying snow wiper for the consuming vehicle drivers but also totally obsoletes the conventional arm-supported snow wiper so as to eliminate the pollution burden incurred by the mass waste conventional snow wipers; Thus, it really possesses double effect in economic benefit and environmental protection.

An improved, conductive, polymeric composition comprises a polymeric resin; an electrically conductive filler system comprising small carbon fibers and either carbon powder or fibrous non-conductive filler or a combination of both. The amount of the conductive filler system utilized is dependent upon the desired electrical conductivity (surface and volume conductivity or resistivity) while preferably preserving intrinsic properties of the polymeric resin such as impact, flex modulus, class A finish, and the like. The conductive articles made from these compositions can therefore be used for electromagnetic shielding, electrostatic dissipation or antistatic purposes in packaging, electronic components, housings for electronic components and automotive housings.