High Efficiency Squirrel Cage Induction Machines
... From the variety of electric energy consumers in industry one of the largest is without any doubt the induction machine operating as motor. Besides the classical destination of the induction machine as motor this machine is more and more used in the latest period as generator in the conversion chain ...
... From the variety of electric energy consumers in industry one of the largest is without any doubt the induction machine operating as motor. Besides the classical destination of the induction machine as motor this machine is more and more used in the latest period as generator in the conversion chain ...
AN004E - Semiconductor Consideration for DC Power Supply
... done this, a di/dt problem is seen to still exist, the designer can also decrease the di/dt of the current waveform by adding inductance in series with the SCR, as shown in Figure 7. Of course, this reduces the circuit’s ability to rapidly reduce the DC bus voltage and a tradeoff must be made betwee ...
... done this, a di/dt problem is seen to still exist, the designer can also decrease the di/dt of the current waveform by adding inductance in series with the SCR, as shown in Figure 7. Of course, this reduces the circuit’s ability to rapidly reduce the DC bus voltage and a tradeoff must be made betwee ...
LDS8845 - IXYS Power
... at 3 V, recommended VF voltage is VF = 3.0 – 0.05 = 2.95 V External Components The driver requires only one external component – current setting resistor RSET. However, if device is connected to the voltage source (battery) through long traces, or voltage source has high electrical noise due bad per ...
... at 3 V, recommended VF voltage is VF = 3.0 – 0.05 = 2.95 V External Components The driver requires only one external component – current setting resistor RSET. However, if device is connected to the voltage source (battery) through long traces, or voltage source has high electrical noise due bad per ...
UF4004
... or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. ...
... or sustain life, or (c) whose failure to perform when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in significant injury to the user. ...
EMI EMISSIONS
... constant Volts per Hertz (V/Hz) ratio (380V @ 50 Hz or 7.6 V/Hz) to maximize torque production over the output frequency range. Abrupt output voltage transitions are dictated by ASD semiconductor switching times. Present generation ASDs use Insulated Gate Bipolar Transistors (IGBT) semiconductors wi ...
... constant Volts per Hertz (V/Hz) ratio (380V @ 50 Hz or 7.6 V/Hz) to maximize torque production over the output frequency range. Abrupt output voltage transitions are dictated by ASD semiconductor switching times. Present generation ASDs use Insulated Gate Bipolar Transistors (IGBT) semiconductors wi ...
Rockwell Automation External LTS Template
... Copyright © 2005 Rockwell Automation, Inc. All rights reserved. ...
... Copyright © 2005 Rockwell Automation, Inc. All rights reserved. ...
The Inside Story
... modified sine wave products? TECH DOCTOR: Modified sine wave products are initially more economical than true sine wave products. In addition, MSW inverters have the advantage when the load is a simple induction load like a motor, or a resistive load like a light bulb. MSW inverters easily fill this ...
... modified sine wave products? TECH DOCTOR: Modified sine wave products are initially more economical than true sine wave products. In addition, MSW inverters have the advantage when the load is a simple induction load like a motor, or a resistive load like a light bulb. MSW inverters easily fill this ...
2015 Ultrasave Brochure
... various other voltages for LED systems. Most of the drivers are UL Class 2 rated, and operate at safe, low DC voltage levels to reduce hazards. Most of the drivers are TL approved, which means they passed the UL's Type TL Program evaluation and testing guidelines to allow for a similar brand LED dri ...
... various other voltages for LED systems. Most of the drivers are UL Class 2 rated, and operate at safe, low DC voltage levels to reduce hazards. Most of the drivers are TL approved, which means they passed the UL's Type TL Program evaluation and testing guidelines to allow for a similar brand LED dri ...
Advanced Common-Mode Control techniques for Low
... voltage signals, which are the input of the CM sense block, are centered around VDD/2 and for very LV supply this value is lower than VT. Therefore, no CM detector circuits, where the amplifier output signals have to be connected to MOS gate terminals, can be used. A possible design solution to over ...
... voltage signals, which are the input of the CM sense block, are centered around VDD/2 and for very LV supply this value is lower than VT. Therefore, no CM detector circuits, where the amplifier output signals have to be connected to MOS gate terminals, can be used. A possible design solution to over ...
A Self-Clocked ASIC Interface for MEMS Gyroscope with 1m°/s√Hz
... centered at the gyro resonance frequency with 200Hz BW, filter out noise of both the drive and sense output signals, before multiplying them for demodulation. Hence, mixing and down conversion of quantization noise to the band of interest are avoided. The poles and zeros of each BPF scale with the s ...
... centered at the gyro resonance frequency with 200Hz BW, filter out noise of both the drive and sense output signals, before multiplying them for demodulation. Hence, mixing and down conversion of quantization noise to the band of interest are avoided. The poles and zeros of each BPF scale with the s ...
Design of Microcontroller-Based Automatic School Bell
... The circuit in Fig. 4 uses a relay to isolate an electric motor from the logic devices. Notice that the logic circuit and dc motor have separate power supplies. When the output of the inverter goes HIGH, the transistor is turned on and the NO contacts of the relay snap are closed. The dc motor opera ...
... The circuit in Fig. 4 uses a relay to isolate an electric motor from the logic devices. Notice that the logic circuit and dc motor have separate power supplies. When the output of the inverter goes HIGH, the transistor is turned on and the NO contacts of the relay snap are closed. The dc motor opera ...
POWER AND ENERGY SAVINGS
... There is tremendous potential for energy efficiency savings within large power plant facilities, given that power plants can utilize up to 20% of the electricity they generate within the facility itself for the operation of numerous large and small motors, water pumps and cooling fans. If this inter ...
... There is tremendous potential for energy efficiency savings within large power plant facilities, given that power plants can utilize up to 20% of the electricity they generate within the facility itself for the operation of numerous large and small motors, water pumps and cooling fans. If this inter ...
Supplemental Protection (Fuses Protectors)
... Branch circuit overcurrent protective devices (OCPD) can be used everywhere OCPD are used, from protection of motors and motor circuits and group motor circuits, to protection of distribution and utilization equipment. Supplemental OCPD can only be used where proper protection is already being provi ...
... Branch circuit overcurrent protective devices (OCPD) can be used everywhere OCPD are used, from protection of motors and motor circuits and group motor circuits, to protection of distribution and utilization equipment. Supplemental OCPD can only be used where proper protection is already being provi ...
Trade of Motor Mechanic Module 2
... stationary field are distorted by the electro-magnetic field around the conductor and try to return to a straight line condition. Reversing the direction of current flow in the conductor will cause the conductor to move in the opposite direction. This is known as the motor effect and is greatest whe ...
... stationary field are distorted by the electro-magnetic field around the conductor and try to return to a straight line condition. Reversing the direction of current flow in the conductor will cause the conductor to move in the opposite direction. This is known as the motor effect and is greatest whe ...
Rectifiers
... devices are like one-way valves, they allow current to only flow in one direction. If a current tries to flow in the opposite direction, it is stopped by the diode. If you look at an AC waveform, you see a sine-wave shape with one portion of the wave on the positive side of the y-axis and one side ...
... devices are like one-way valves, they allow current to only flow in one direction. If a current tries to flow in the opposite direction, it is stopped by the diode. If you look at an AC waveform, you see a sine-wave shape with one portion of the wave on the positive side of the y-axis and one side ...
EVBUM2156 - Power-over-Ethernet PD Interface
... ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/ ...
... ON Semiconductor and are registered trademarks of Semiconductor Components Industries, LLC (SCILLC). SCILLC owns the rights to a number of patents, trademarks, copyrights, trade secrets, and other intellectual property. A listing of SCILLC’s product/patent coverage may be accessed at www.onsemi.com/ ...
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.