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38results about How to "Reduce current load" patented technology

Floating type wind power generation platform

The invention provides a floating type wind power generation platform. The floating type wind power generation platform comprises a floating type foundation and a fan unit. The floating foundation comprises three buoyancy units, three truss units and a fan base arranged on one or two of the buoyancy units. Each buoyancy unit comprises a stand column and a swash deep cabin fixed to the bottom of the stand column. Ballast tanks are arranged in the stand column and the swash deep tank; the section size of the top of the stand column is larger than that of the bottom of the stand column, and any first position and any second position located above the first position in the height direction of the stand column meet the conditions that the section size of the stand column at the second positionis larger than or equal to that of the first position; the swash deep cabin is used as a vertical damping structure; the section size of the swash deep cabin is larger than that of the stand column. The draught fan unit is installed on the draught fan base, and the height of the swash deep cabin of the buoyancy unit where the draught fan unit is located is larger than that of the swash deep cabinof the buoyancy unit where the draught fan unit is not arranged. The wind power generation device has good movement performance, and the power generation efficiency is improved.
Owner:YANTAI RAFFLES SHIPYARD +3

High-efficiency DC-DC converter

The invention relates to a high-efficiency DC-DC converter which comprises a first full bridge, a second full bridge and a third full bridge, wherein the first full bridge, the second full bridge and the third full bridge are identical in structure. Bridge arms of the full bridges are all connected with an input power supply in parallel, and the difference between the phase position of the first full bridge, the phase position of the second full bridge and the phase position of the third full bridge is 120 degrees. An on-bridge tube of the advancing bridge arm is driven first, and an under-bridge tube of the advancing bridge arm is driven half a period later than the on-bridge tube. An on-bridge tube of the lagging bridge arm is driven X periods of time later than the on-bridge tube of the advancing bridge arm. Due to the fact that in the five states for energy transmission at each order, at least one phase and at most two phases of the first full bridge, the second full bridge and the third full bridge work, in the whole process, currents are shared by the full bridges which work simultaneously, the current load of each full bridge is reduced, as a result, circuit loss is lowered effectively, the current limiting problem generated during power amplification through a traditional full bridge is solved, and the current resisting requirement of a device is also lowered. Due to the fact that the soft switching state is realized in a part of period, switching tube loss caused by the hard switching state of a switching tube is lowered, and the conversion efficiency of the DC-DC converter is improved.
Owner:湖南终南山科技发展有限公司

Electroosmosis sludge modifying and drying device

ActiveCN103613266ASolve the phenomenon of sparks caused by poor contactIncrease wrap angleSludge treatment by de-watering/drying/thickeningElectricitySludge
The invention relates to a drying device, and in particular relates to an electroosmosis sludge modifying and drying device, aiming at solving the problems of an existing electroosmosis sludge modifying and drying device that anode loss is serious, an anode roller leaks after being electrolyzed so as not to be capable of working normally, a conveying chain easily looses, and a power distribution device is arranged in a stand in nude. A driving shaft of the electroosmosis sludge modifying and drying device is arranged on the left side of the middle of the stand; a plurality of driving chain wheels, a plurality of driven chain wheels and a plurality of guide wheels are sheathed in a conveying chain group; an anode roller component is arranged in the middle of the stand; a conductive resistance shaft is arranged at the upper part of the stand; the conductive resistance shaft is sheathed in a conductive resistance roller; the two ends of the anode roller component are respectively provided with an anode power distribution assembly; the two ends of the driving shaft are respectively provided with a cathode power distribution assembly; the two ends of the driven shaft are respectively provided with a cathode power distribution assembly. The electroosmosis sludge modifying and drying device is used for the field of sludge treatment.
Owner:哈尔滨北方环保工程有限公司

Whole equipment cabinet server and power supply method

The invention provides a whole equipment cabinet server and a power supply method. The whole equipment cabinet server comprises a cabinet body, at least one first server node, at least one second server node and at least one third server node, wherein the first server nodes are installed on the left side of a front window region of the cabinet body, the second server nodes are installed in the middle of the front window region of the cabinet body, and the third server nodes are installed on the right side of the front window region of the cabinet body. The whole equipment cabinet server further comprises a first power bus bar, a second power bus bar, a third power bus bar and a power module. The first power bus bar is installed on the left side of a rear window region of the cabinet body, the second power bus bar is installed in the middle of the rear window region of the cabinet body, and the third power bus bar is installed on the right side of the rear window region of the cabinet body. Each first server node is connected with the first power bus bar, each second server node is connected with the second power bus bar, and each third server node is connected with the third power bus bar. The power module is connected with the first power bus bar, the second power bus bar and the third power bus bar. Through the technical scheme, electric resources can be saved.
Owner:LANGCHAO ELECTRONIC INFORMATION IND CO LTD

Electronic ballast for operating at least two different types of discharge lamps

#CMT# # / CMT# The device has an input unit provided with two input connectors (E1) for connection of direct current supply voltage unit (Un). Voltage measuring devices (R1-R4) are provided for measuring voltage between input connectors and output connectors of a boost-converter (12). A microcontroller (14) is provided with two inputs (EM1, EM2), which are coupled with voltage measuring devices. The micro-controller is designed such that voltage (Uzw) between output connectors of the converter is controlled to a value, which depends upon a value of voltage (Ugl) between the input connectors of converter. #CMT#USE : # / CMT# Electronic pre-switching device for operation of two different types of discharge lamps. #CMT#ADVANTAGE : # / CMT# The micro-controller is designed such that voltage between output connectors of the boost converter is controlled to the value, which depends upon the value of voltage between the input connectors, thus operating the pre-switching device at reduced power losses, and reducing electronic interferences, during operation of the discharge lamps. The device is designed such that the voltage stroke between the input and the output of the boost converter is reduced, thus increasing the efficiency of the converter, and reducing power load in all components of the pre-switching device such that compact components are used in the pre-switching device, and hence reducing the cost and space required for the pre-switching device. #CMT#DESCRIPTION OF DRAWINGS : # / CMT# The drawing shows a schematic circuit diagram of an electronic pre-switching device. E1 : Input connectors EM1, EM2 : Inputs R1-R4 : Voltage measuring devices Ugl, Uzw : Voltage Un : Direct current supply voltage unit 12 : Boost-converter 14 : Microcontroller.
Owner:OSRAM GMBH

A High Efficiency DC-DC Converter

The invention relates to a high-efficiency DC-DC converter which comprises a first full bridge, a second full bridge and a third full bridge, wherein the first full bridge, the second full bridge and the third full bridge are identical in structure. Bridge arms of the full bridges are all connected with an input power supply in parallel, and the difference between the phase position of the first full bridge, the phase position of the second full bridge and the phase position of the third full bridge is 120 degrees. An on-bridge tube of the advancing bridge arm is driven first, and an under-bridge tube of the advancing bridge arm is driven half a period later than the on-bridge tube. An on-bridge tube of the lagging bridge arm is driven X periods of time later than the on-bridge tube of the advancing bridge arm. Due to the fact that in the five states for energy transmission at each order, at least one phase and at most two phases of the first full bridge, the second full bridge and the third full bridge work, in the whole process, currents are shared by the full bridges which work simultaneously, the current load of each full bridge is reduced, as a result, circuit loss is lowered effectively, the current limiting problem generated during power amplification through a traditional full bridge is solved, and the current resisting requirement of a device is also lowered. Due to the fact that the soft switching state is realized in a part of period, switching tube loss caused by the hard switching state of a switching tube is lowered, and the conversion efficiency of the DC-DC converter is improved.
Owner:湖南终南山科技发展有限公司

Internally-eccentric ultra-high speed needle machine

The invention belongs to a needle machine in the technical field of non-woven fabric production machines. In order to resolve technical problems such as great centrifugal force, noise and current loads, the invention provides an internally-eccentric ultra-high speed needle machine. The needle machine comprises a needle beam, a counterweight beam and a crankshaft. The body of the crankshaft is equipped with two first internally-eccentric eccentric parts. The body of the crankshaft is equipped with two second eccentric parts located between the two eccentric parts. The eccentric directions of the first eccentric parts are opposite to those of the second eccentric parts. The top of the needle beam is connected with the first eccentric parts through first opening and closing connecting rods. The top of the counterweight beam is connected with the second eccentric parts through second opening and closing connecting rods. The eccentric parts in two opposite directions on the crankshaft can balance rotary centrifugal force and moment of the crankshaft and can balance reciprocating inertia force and moment of the needle beam and the counterweight beam. When such force and moment reach selfbalance, load of the crankshaft is reduced. When centrifugal force of the crankshaft is on the decrease, the machine operates more stably.
Owner:王永祥
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