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Showing 1 to 20 of 543 for “"power supply"”.
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Automated power supply testing
… Testing system used to test a switched mode power supply. It includes all the basic principles found in industrially available Automatic Test Equipment (ATE). The system consists of a Testing Jig on which the testing is done, interfaced to a computer through a controlling card. The computer …
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Privatization of power supply in Lebanon
… the vertically integrated government owned Power Company, has become a financial burden on the Lebanese public sector. The following paper proposes a strategy for its privatization. We first start by exposing the relevant characteristics of the country, the current socio-economic situation …
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Stability of distributed power supply systems
… stability analysis of a distributed power system (DPS) is performed. The possible performance degradation and stability problems caused by the loading effect of cascaded converters are analyzed. The effect of impedance overlap on the system and individual subsystems is examined. By …
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Supply-friendly single phase uninteruptible power supply
Uninterruptible power supplies (UPS) maintain a constant supply of power to a critical load. The distinguishing features are a fixed voltage and frequency, low harmonic content and the ability to supply the load for a period of time after the incoming supply has failed. The document begins by …
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Custom power supply interface for teaching circuit design
… the design and implementation of a custom power supply interface for the Pioneer mobile robot used in MIT's 6.01 course, "Introduction to Electrical Engineering and Computer Science." The interface is a printed circuit board that provides bipolar voltage rails of +7VDC and -7VDC, expanding …
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An energy optimal power supply for digital circuits
… conditions and temperature is presented. A low power, voltage scalable DC-DC converter is also embedded within the chip. The proposed minimum energy tracking algorithm uses a novel approach to sense the energy consumed per operation. The energy sensing circuitry does not use high-resolution …
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Design of SCALDO based high-current DC power supply
… toward 48 V server rack architecture to minimise power losses in distribution lines and to improve overall operating efficiency. This thesis investigated the potential of the SCALDO technique to develop a high-current DC power supply suitable for Google server racks, meeting requirements such as …
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Power supply for terminal electrification of railways entering Chicago
Made available in DSpace on 2017-11-30T22:11:18Z (GMT). No. of bitstreams: 2 5969744.pdf: 3072765 bytes, checksum: b2d139f890b64919888e37af77c85096 (MD5) license.txt: 4813 bytes, checksum: 715c4321821a960fa1a1e91d2ac7ebce (MD5) Previous issue date: 1909
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Hydrogen storage of energy for small power supply systems
Power supply systems for cell phone base stations using hydrogen energy storage, fuel cells or hydrogen-burning generators, and a backup generator could offer an improvement over current power supply systems. Two categories of hydrogen-based power systems were analyzed: Wind-hydrogen systems and …
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Self-sustaining power supply for a low-power sea buoy
… sources such as hydro, solar, and wind power. Another less known method ofgenerating reusable energy is harnessing the immense potential of our oceans. Under the sealie strong currents flowing endlessly and on the surface powerful waves swoop across the seawith immense forces. Few power …
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Current-Transformer Based Gate-Drive Power Supply With Reinforced Isolation
… trend toward increasing the demand for electric power in high-power applications. High-power converters are making major impacts on these high-power applications. Recent breakthroughs in Silicon Carbide (SiC) materials and fabrication techniques have led to the development of high-voltage, …
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DSP controlled three phase to single phase uninterruptible power supply
… number of single phase loads onto a three phase supply, such as in a large computer network. This has resulted in more frequent supply voltage failure, causing substantial data and financial loss and in the extreme case death due to hospital equipment not being powered. Thus the need for an …
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Design of a four-phase switchmode high efficiency power supply
Thesis (M. Eng.)--Massachusetts Institute of Technology, Dept. of Electrical Engineering and Computer Science, 1994.
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PC based simulation software package for an uninterruptable power supply
The uninterruptible power supply (hereafter referred to as UPS) has become an integral part of modern computer and communication systems. Various topologies have come to the fore in recent times with the advent of high frequency switching techniques. This project considers such a high frequency …
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Reduction of power supply EMI emission by switching frequency modulation
The effect of PWM frequency modulation on power supply conducted EM! noise emission is investigated. Significant reduction of emission is possible with PWM frequency modulation scheme. A forward converter is used to verify the effectiveness of the scheme. A guidance of parameter selection for noise …
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Power electronics solutions for uninterrupted power supply and grid-tie inverters
… proposes two new topologies for Uninterrupted Power Supply (UPS), and a grid-tie microinverter. The first topic will discuss an on-line transformerless UPS system based on the integrated power electronics converters that is able to control the input power factor, charge the battery, and …
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High frequency switching parallel processing topology for AC uninterruptible power supply
… frequency parallel processing ac uninterruptible power supply. Compared to the standard UPS system used today, the proposed system has higher efficiency, smaller size and less weight, this is due primary to the usage of a high-frequency switching topology. The main power circuit configuration is …
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