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Power Integrations
Power Integrations

MAX14562 - Part Number Search
MAX14562 - Part Number Search

... Stresses beyond those listed under “Absolute Maximum Ratings” may cause permanent damage to the device. These are stress ratings only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Expo ...
Power Minimization Strategy in MOS Transistors Using
Power Minimization Strategy in MOS Transistors Using

Texas Instruments
Texas Instruments

... Dropout Voltage: The input-voltage differential at which the circuit ceases to regulate against further reduction in input voltage. Measured when the output voltage has dropped 100mV from the nominal value obtained at (VOUT + 5V) input, dropout voltage is dependent upon load current and junction tem ...
Reactor Error Code Trouble Shooting Guide
Reactor Error Code Trouble Shooting Guide

... Thermocouple not Connected. (Return to Table Of Contents) Note: The display that is showing the E04 error is the zone that is seeing the error. ...
What Is Ripple - Controlled Power Company
What Is Ripple - Controlled Power Company

... or they may have a variable output, or they may be variable and provide voltage or current regulation. All of these systems will deliver about 4.2 to 5% ripple only when operating at full rated voltage and current levels. The variable and regulated rectifiers are most typically controlled by SCR’s ( ...
Datasheet - STMicroelectronics
Datasheet - STMicroelectronics

... applications, cold sparing enables a redundant device to be tied to the data bus with its power supply at 0 V (VCC = GND) without affecting the bus signals or injecting current from the I/Os to the power supplies. Cold sparing also allows redundant devices to be kept powered off so that they can be ...
Virtual Lab
Virtual Lab

... a) The current through each bulb is the same as the total current leaving the battery b) The current through each bulb is less than the total current and the currents of all bulbs add up to a number less than the total current. c) The current through each bulb is less than the total current and the ...
PSU_Part1_EfficiencyPowerFactor - Renesas e
PSU_Part1_EfficiencyPowerFactor - Renesas e

... Renesas Electronics Corporation. ©2011. Renesas Electronics Corporation. All rights reserved. ...
Reference 600 Product Brochure
Reference 600 Product Brochure

LM5110 Dual 5A Compound Gate Driver with Negative Output
LM5110 Dual 5A Compound Gate Driver with Negative Output

... switching speed between the driver channels will produce a transient current (shoot-through) in the output stage when two output pins are connected to drive a single load. Differences in input thresholds between the driver channels will also produce a transient current (shoot-through) in the output ...
XAPP946 - 适用于 Virtex-4 RocketIO MGT 的开关电源
XAPP946 - 适用于 Virtex-4 RocketIO MGT 的开关电源

... generators, and amplifiers, noise on the power supply can couple into critical parts of the circuit and degrade jitter tolerance or output jitter. The most absolute method of avoiding this issue is to use relatively quiet power supplies such as linear regulators. Easy to implement and low in cost, l ...
Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier AD8226 Preliminary Technical Data
Wide Supply Range, Rail-to-Rail Output Instrumentation Amplifier AD8226 Preliminary Technical Data

DOE Fundamentals Handbook Electrical Science Volume 4 of 4
DOE Fundamentals Handbook Electrical Science Volume 4 of 4

CHAPTER 6
CHAPTER 6

... Electricity is provided by generators, devices that convert mechanical energy into electrical energy. Motors, on the other hand, convert electrical energy into mechanical motion and work. This process of changing the form of energy is called electromechanical energy conversion. A flow chart of the e ...
Fundamental Electricity Student Study Notes - Linn
Fundamental Electricity Student Study Notes - Linn

Retrofit for Safety
Retrofit for Safety

... or if a CPT in the equipment is sufficient. In a situation involving low voltage switchgear or switchboards, the source of control power is typically adequate as long as the CPT is connected ahead of the device being controlled. If power to the facility is lost, the devices can still be opened manua ...
Electrostatic Microgenerators
Electrostatic Microgenerators

... A  third  mode  of  operation  exists  when  the  variable  capacitor  is  continuously  connected  to  the  load  circuitry, and this load circuitry provides the capacitor with a polarisation voltage.  A simple example of  this is a voltage source, a resistor and a variable capacitor wired in serie ...
Introduction
Introduction

8th-Order, Lowpass, Switched-Capacitor Filters General Description Features
8th-Order, Lowpass, Switched-Capacitor Filters General Description Features

... Lowpass Bessel filters such as the MAX292/MAX296 delay all frequency components equally, preserving the shape of step inputs, subject to the attenuation of the higher frequencies. They also settle faster than Butterworth filters. Faster settling can be important in applications that use a multiplexe ...
Glossary of technical terms
Glossary of technical terms

... systems that are used to monitor and control processing plants such as cement factories or oil refineries. The systems extend traditional process control, which is used to monitor and control individual processes, by evaluating and controlling multiple processes across the plant. By monitoring multi ...
Abstract-Voltage stability is the ability of a power system to
Abstract-Voltage stability is the ability of a power system to

... damping against the instability. Voltage collapse is the procedure by which the voltage falls to a low unacceptable value as a result of an avalanche of events accompanying voltage instability [1]. Once associated with weak systems and long lines, voltage troubles are now also a source of concern in ...
TPS62065x 3-MHz 2A step down converter in a 2x2 SON package
TPS62065x 3-MHz 2A step down converter in a 2x2 SON package

... (PWM) at moderate to heavy load currents. At light load currents the converter can automatically enter power save mode and operates then in pulse frequency modulation (PFM) mode. During PWM operation the converter use a unique fast response voltage mode controller scheme with input voltage feed-forw ...
static and dynamic power consumption
static and dynamic power consumption

7 – The Power MOSFET 1
7 – The Power MOSFET 1

< 1 ... 507 508 509 510 511 512 513 514 515 ... 1315 >

Variable-frequency drive



A variable-frequency drive (VFD) (also termed adjustable-frequency drive, variable-speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage.VFDs are used in applications ranging from small appliances to the largest of mine mill drives and compressors. However, around 25% of the world's electrical energy is consumed by electric motors in industrial applications, which are especially conducive for energy savings using VFDs in centrifugal load service, and VFDs' global market penetration for all applications is still relatively small. That lack of penetration highlights significant energy efficiency improvement opportunities for retrofitted and new VFD installations.Over the last four decades, power electronics technology has reduced VFD cost and size and has improved performance through advances in semiconductor switching devices, drive topologies, simulation and control techniques, and control hardware and software.VFDs are available in a number of different low- and medium-voltage AC-AC and DC-AC topologies.
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