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Abstract - ph-collectif-lecc-workshops
Abstract - ph-collectif-lecc-workshops

... (LMB) was designed in 1998 and tested by the ATLAS sub-detector groups in test-beam and other applications. With this experience and to match better all the needs of the ATLAS sub-detector groups a modified version, the Embedded Local Monitor Board (ELMB) was designed. The main feature of the ELMB i ...
Liebert eXL UPS 625-1200kVA Multi-Module Guide
Liebert eXL UPS 625-1200kVA Multi-Module Guide

... The UPS shall operate as an on-line reverse transfer system in the following modes: A. Normal: The critical AC load shall be continuously powered by the UPS inverter. The rectifier shall derive power from the utility AC source and supply DC power to the DC-DC converter, which in turn shall supply th ...
capacitors - DigitalCommons@University of Nebraska
capacitors - DigitalCommons@University of Nebraska

... the capacitor is used to store electrical charge and electrical energy - for example, sometimes for a short time in an alternating-current cycle, sometimes for a long time until the energy is needed, as in a strobe light for a camera. Your body can be a capacitor, storing up enough charge and energy ...
Rolls Battery User Manual
Rolls Battery User Manual

... For additional data and safety, many systems use a temperature sensor mounted to the battery to measure cell temperature to adjust charge voltage accordingly. The probe should be installed on the side of one of the batteries or cells located in the center of the bank. If included with charge equipme ...
multiplier
multiplier

... realized from three transconductance components, where output current is a product of two input voltages v1 and v2. Two of these components have the same transconductance Gm1 and third one has Gm2. The third transconductor Gm2 acts ...
Norcal Cover page
Norcal Cover page

... Figure 39. Bottom side location of the receiver crystal oscillator circuitry............................................. 33 Figure 40. Top side receiver LO parts mounted ...................................................................................... 33 Figure 41. Bottom side receiver LO par ...
A Low-Power Wide-Dynamic-Range Analog VLSI Cochlea
A Low-Power Wide-Dynamic-Range Analog VLSI Cochlea

... mirrors are attenuating, with a 1:3 ratio, to avoid parasitic-capacitance effects in the differential pair. The CP and CN transistors function as cascode transistors; they ensure that the DC gain of the ampli®er is high such that there is no signi®cant lowfrequency attenuation in the cochlea (see Se ...
3-Phase PM Synchronous Motor Nyachulue Njita High Speed with Low Torque
3-Phase PM Synchronous Motor Nyachulue Njita High Speed with Low Torque

... The objective of this project was to design a 3-phase PM Synchronous motor with a constant speed at a specific frequency value supplied from a variable frequency drive (VFD) source. The thesis explains in detail the effect of varying the frequency values supplied from the VFD system on the motor’s s ...
Switching, Operation/ Display and Control Devices
Switching, Operation/ Display and Control Devices

... Great East Japan Earthquake, renewable energy usage has been expanding and awareness of energy savings and conservation has been increasing more than ever. For general residential buildings, the model of energy savings called eco-house through the use of direct current (DC) has been attracting att ...
Datasheet
Datasheet

AAT00x angle sensor datasheet
AAT00x angle sensor datasheet

... θ is the magnetic field angle; VCOS and VSIN are the sensor output voltages (mV/V); VCC-SIN and VCC-COS are the sensor supply voltages (normally tied together); VSIN-MAX, VCOS-MAX, VSIN-MIN, and VCOS-MIN are the sensor output peak signal levels (mV/V); and VOFFSET-SIN and VOFFSET-COS are the sensor ...
Fuse Facts - Marine Electricity
Fuse Facts - Marine Electricity

... an incomplete analysis of the circuit under consideration. Of all the “Selection Factors” listed in the FUSE SELECTION GUIDE, special attention must be given to items 1, 3, and 6, namely, normal operating current, ambient temperature, and pulses. For example, one prevalent cause of nuisance opening ...
MAX5X05 Evaluation Kit Evaluates: MAX5703, MAX5704, MAX5705A, MAX5705B, MAX5803, MAX5804, MAX5805A, MAX5805B
MAX5X05 Evaluation Kit Evaluates: MAX5703, MAX5704, MAX5705A, MAX5705B, MAX5803, MAX5804, MAX5805A, MAX5805B

... created in the Windows Start | Programs menu. 6) Connect the USB cable from the PC to the EV kit board; the USB driver is installed automatically. 7) Start the MAX5X05 EV kit software by opening its icon in the Start | Programs menu. The EV kit software main window appears as shown in Figure 1. 8) ...
Product Manual
Product Manual

10 kW Contactless Power Transfer System for Rapid Charger of
10 kW Contactless Power Transfer System for Rapid Charger of

... and 0–150 mm in the y direction represent average ranges. Tables 2 and 3 show that both transformers have approximately the same specifications and characteristics. ...
DC Shunt Motors - PSSurvival.com
DC Shunt Motors - PSSurvival.com

... to the load characteristics of the armature and shunt coil. You should remember that the speed of a series motor could not be controlled since it was totally dependent on the size of the load in comparison to the size of the motor. If the load was very large for the motor size, the speed of the arma ...
Digital Low-Impedance Bus Differential Protection
Digital Low-Impedance Bus Differential Protection

... On the other hand, bus faults generate large fault currents. If not cleared promptly, they endanger the entire substation due to both dynamic forces and thermal effects. Hence, the requirement of high-speed operation of busbar protection. With both security and dependability being very important for ...
Field Oriented Stepper Motor Control
Field Oriented Stepper Motor Control

X-ray imager - UWSpace - University of Waterloo
X-ray imager - UWSpace - University of Waterloo

A Designer`s Guide to Instrumentation Amplifiers
A Designer`s Guide to Instrumentation Amplifiers

... Charles Kitchin and Lew Counts ...
Basics of Linear Fixed Resistors
Basics of Linear Fixed Resistors

... terminations and resistor material, even linear resistors are not completely linear, i.e. the current-voltage characteristic is not exactly linear. The non-linearity is determined by measuring the 3rd harmonic of a 10 kHz sine oscillation. The voltage ratio U 10 kHz A 3 = 20 ⋅ lg -----------------U ...
Type Series 81000TM solid-state reduced
Type Series 81000TM solid-state reduced

... 36 R/SMPS is an interposing relay controlled by the internal firing logic of the soft starter. The R/SMPS relay is energized only during the SCR firing process. The normally open contact is connected in series with the SMPS transformer that supplies 24 Vac to the switch mode power supply (SMPS). 37 ...
Document - UCF EECS
Document - UCF EECS

... household items. The recyclable material used in 3D printing can be molded to create just about anything. In our projected our idea is to design a small desktop sized 3D printer capable of printing complex plastic designs. The low cost 3D Printer will utilize many items that can be found in any hobb ...
MK Dimming Compatibility Guide
MK Dimming Compatibility Guide

... I have Grid Plus frontplates with dimmer modules fitted but my installer says I cannot fit more to provide dimming on other lighting circuits, why? Grid Plus frontplates can accommodate large numbers of switches in a small space, however dimmers dissipate larger amounts of heat during operation and ...
Control relays
Control relays

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Buck converter



A buck converter is a voltage step down and current step up converter.The simplest way to reduce the voltage of a DC supply is to use a linear regulator (such as a 7805), but linear regulators waste energy as they operate by dissipating excess power as heat. Buck converters, on the other hand, can be remarkably efficient (95% or higher for integrated circuits), making them useful for tasks such as converting the main voltage in a computer (12V in a desktop, 12-24V in a laptop) down to the 0.8-1.8V needed by the processor.
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