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Mobile Robotics - Actuators
Mobile Robotics - Actuators

... The classic DC motor has a rotating armature in the form of an electromagnet A rotary switch called a commutator reverses the direction of the electric current twice every cycle, to flow through the armature so that the poles of the electromagnet push and pull against the permanent magnets on the ou ...
input 1 - Innovetech
input 1 - Innovetech

... like battery and SC. In this paper, FC and battery are considered as power source and ESS, respectively. Also, the converter can be utilized as single input multioutput converter. It is possible to have several outputs with different voltage levels. The converter has two main operation modes which i ...
troubleshooting electric winch
troubleshooting electric winch

... for a large percentage of hoist problems. Time is often wasted chasing other probable causes only to eventually find a loose or corroded connection. Measuring the voltage is not sufficient. Often a poor connection will allow enough amperage to operate a meter or test light, but not enough to operate ...
VIPer100 - Hobbielektronika.hu
VIPer100 - Hobbielektronika.hu

... The additional advantages of VIPer100 when compared with existing monolithic solution are numerous. The useful duty cycle range extends from 0% to about 90% for VIPer100, versus the 3% to 70% available on the market. The main benefit for users is the possibility to operate in stand-by mode with near ...
leds and resistor values
leds and resistor values

... Choosing the correct resistor when using an LED For every LED there is a specified LED current (sometimes written IF – the FORWARD current). If a higher current is passed through the LED it will overheat and possibly fail. The LED is a type of DIODE. When current passes through the diode it causes a ...
MICRO-TURBINE GENERATOR SYSTEM
MICRO-TURBINE GENERATOR SYSTEM

IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)
IOSR Journal of Electrical and Electronics Engineering (IOSR-JEEE)

REFINEMENT OF HARMONICS USING APF WITH SINUSOIDAL
REFINEMENT OF HARMONICS USING APF WITH SINUSOIDAL

Chaotic Behavior in a Simple DC Drive
Chaotic Behavior in a Simple DC Drive

Magnetic Performance of a Single Phase Induction Motor under
Magnetic Performance of a Single Phase Induction Motor under

A New shaft position control for Switched Reluctance Motor in Harsh
A New shaft position control for Switched Reluctance Motor in Harsh

Development of Microcontroller Based Speed Control Scheme of
Development of Microcontroller Based Speed Control Scheme of

... particular sensor or not. In Proteus, sensors are embedded with the motor model and outputs are taken out. Speed sensor: Speed Sensor senses the motor instantaneous speed. The speed sensor used in drive application is tacho-generator coupled to the motor shaft, which produces a voltage output signal ...
DJ32693695
DJ32693695

... resources. Further microprocessors, Microcontrollers and DSPs are sequential machines that mean tasks are executed sequentially which takes longer processing time to accomplish the same task. The efficient control of the motor drive systems involves fast computational units. Signal processors and mi ...
Motor Start Theory
Motor Start Theory

... Motors consist of two major sections – The Stator and the Rotor The stator consists of magnetic poles and stator windings within the frame of the motor.By variation of winding configuration and the contour of the stator laminations , the full load characteristics are determined The motor speed is de ...
Successful Power Monitoring is a Process 2009
Successful Power Monitoring is a Process 2009

... “We need to reduce energy consumption – I need to perform an energy audit to evaluate energy savings opportunities.” “How are the energy savings measures we have implemented performing?” “This transformer is very hot – is it overloaded, or are high harmonics the cause?” “My (machine/process) is oper ...
T.C. Neugebauer, D.J. Perreault, J.H. Lang, C. Livermore, and S.D. Umans, “A Six-Phase Multilevel Inverter for MEMS Electrostatic Induction Micromotors,” 2002 IEEE Power Electronics Specialists Conference , Cairns, Australia, June 2002, pp. 695-670.
T.C. Neugebauer, D.J. Perreault, J.H. Lang, C. Livermore, and S.D. Umans, “A Six-Phase Multilevel Inverter for MEMS Electrostatic Induction Micromotors,” 2002 IEEE Power Electronics Specialists Conference , Cairns, Australia, June 2002, pp. 695-670.

... the full-bridge converters. It must be recognized that switching signal timing must be accurate to within a few nanoseconds to achieve acceptable phase accuracy. This challenging task has been accomplished using high-speed comparator networks with adjustable switching thresholds. Figures 2 and 4 ill ...
Field Reversing Panel (36C764165AD/36C764899AB) Instructions
Field Reversing Panel (36C764165AD/36C764899AB) Instructions

... FR (Field). An MFC (Motor Field Control) is used with field reversing to raise and lower field current (by signals RFartd ZF from the FRP to MFC) such that field voltage IS reversed with low power on the contacts of FC and RC. The MF(: provides a field loss function that IS inhibited during field sw ...
Frequently Asked Questions about the 07523-80 and
Frequently Asked Questions about the 07523-80 and

... Navigate to the Remote Menu via the “HOUSE” icon or the Main Menu; press ENTER key. Navigate to the desired INPUT/OUTPUT; press ENTER key. Screen will now display MIN settings. a. Value for mA or V will be highlighted. b. Press enter and this value can now be adjusted with the UP/DOWN/LEFT/RIGHT arr ...
High Voltage Power Supply Using the TPS61040
High Voltage Power Supply Using the TPS61040

... orders and should verify that such information is current and complete. All products are sold subject to TI’s terms and conditions of sale supplied at the time of order acknowledgment. TI warrants performance of its hardware products to the specifications applicable at the time of sale in accordance ...
Is mathematical logic needed in electrical engineering?
Is mathematical logic needed in electrical engineering?

... use. In case of a compensation unit a three level inverter can used. One of many topologies is so called VIENNA I inverter unit where only three controllable power components are needed. ...
Active loads and the RIGOL DP800 and DP1000 Series
Active loads and the RIGOL DP800 and DP1000 Series

... can only provide power for a pure load that does not have the ability to output a current. Active loads, such as those that can provide power (batteries, solar cells, etc..), should not be used with the DP800 series or DP1000 series power supply. Active loads can lead to instability in the power sup ...
L544 D M1500UPS_EX (Page 1)
L544 D M1500UPS_EX (Page 1)

Recent Results on the Radiation Hardness of CVD Diamond
Recent Results on the Radiation Hardness of CVD Diamond

...  Commercially available HV supplies are not suited for this  Often too bulky  May use iron based transformers  => do not operate in a magnetic field ...
PDF
PDF

... transformer is big, heavy and expensive. Also, it reduces the overall frequency of the conversion stage. Generally PV inverter with transformer is having good efficiency. To overcome these problems, transformer less PV system is introduced. It is smaller, lighter, cheaper and higher in efficiency. H ...
Fairchild Semiconductor`s
Fairchild Semiconductor`s

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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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