Auto-Electric Basic Technology - Part 2
... Why there is a need to use relays? The reason to use in several cases a relay is given by a higher current flow in some circuits like for double horn, spotlight, fog light or for the headlight. But practically you will find always again i. e. headlight circuits in motor vehicles without using a rela ...
... Why there is a need to use relays? The reason to use in several cases a relay is given by a higher current flow in some circuits like for double horn, spotlight, fog light or for the headlight. But practically you will find always again i. e. headlight circuits in motor vehicles without using a rela ...
Softstarter Handbook
... current and torque and the variation can be really large between different manufacturers for the same power rating. When using a softstarter it is good if the motor has a high starting torque at Direct-on-line (DOL) start. When these motors are used together with a softstarter it is possible to redu ...
... current and torque and the variation can be really large between different manufacturers for the same power rating. When using a softstarter it is good if the motor has a high starting torque at Direct-on-line (DOL) start. When these motors are used together with a softstarter it is possible to redu ...
AVR447: Sinusoidal driving of 3-phase permanent magnet motor
... The timer/counter units have several PWM modes, and there are several configuration options for the output pins. For the half-bridge control with dead-time, the phase correct PWM mode is very well suited. The counter works in a dual slope mode, which allows generation of centeraligned PWM signals wi ...
... The timer/counter units have several PWM modes, and there are several configuration options for the output pins. For the half-bridge control with dead-time, the phase correct PWM mode is very well suited. The counter works in a dual slope mode, which allows generation of centeraligned PWM signals wi ...
Introduction This document will cover the design, construction, and
... The autocraniotomy LabVIEW program is a fairly simple VI. The following section will describe how it works in a manner that should be simple enough so that a user not experienced in LabVIEW programming can understand and make modifications to the program. The VI is based on a flat sequence structure ...
... The autocraniotomy LabVIEW program is a fairly simple VI. The following section will describe how it works in a manner that should be simple enough so that a user not experienced in LabVIEW programming can understand and make modifications to the program. The VI is based on a flat sequence structure ...
1 Introduction to 3 phase induction motors
... the secondary of a two winding transformer receiving its power from primary. That is why an induction motor can be called as a rotating transformer i.e., in which primary winding is stationary but the secondary is free to rotate. ...
... the secondary of a two winding transformer receiving its power from primary. That is why an induction motor can be called as a rotating transformer i.e., in which primary winding is stationary but the secondary is free to rotate. ...
P10511: Miniaturization of Xerography
... • Default setting of 10 microsteps/step (2000 steps/rev for a 1.8⁰ resolution motor) • Motor connections are wired in parallel for higher speed, lower torque ...
... • Default setting of 10 microsteps/step (2000 steps/rev for a 1.8⁰ resolution motor) • Motor connections are wired in parallel for higher speed, lower torque ...
maxon EC motor EC 45 flat with integrated electronics Document ID: 919801en
... decelerated when the speed set value is reduced or the direction changed (direction preselection version). Speed control recommences as soon as the load has reduced its speed by friction to the level specified by the set value speed. ...
... decelerated when the speed set value is reduced or the direction changed (direction preselection version). Speed control recommences as soon as the load has reduced its speed by friction to the level specified by the set value speed. ...
G047033138
... position information is required only at the commutation p o i nt s , e.g., every 60°electrical in the three- phase [1-4]. The rotor position of BLDC is sensed using Hall effect position sensors and used to generate switching sequence for the VSI as shown in Table-I. The DC link voltage is controlle ...
... position information is required only at the commutation p o i nt s , e.g., every 60°electrical in the three- phase [1-4]. The rotor position of BLDC is sensed using Hall effect position sensors and used to generate switching sequence for the VSI as shown in Table-I. The DC link voltage is controlle ...
AVR442: PC fan control using tiny13
... 12-volt DC cooling fans consist of a rotor-blade assembly containing a permanent magnet, and a 2- or more pole stator. A magnetic sensor, called a Hall sensor, detects the rotating magnetic field and switches 12VDC from one stator coil to another. Varying the supplied DC voltage can vary the speed o ...
... 12-volt DC cooling fans consist of a rotor-blade assembly containing a permanent magnet, and a 2- or more pole stator. A magnetic sensor, called a Hall sensor, detects the rotating magnetic field and switches 12VDC from one stator coil to another. Varying the supplied DC voltage can vary the speed o ...
maxon EC motor EC 32 flat with integrated electronics Document ID: 919778en
... decelerated when the speed set value is reduced or the direction changed (direction preselection version). Speed control recommences as soon as the load has reduced its speed by friction to the level specified by the set value speed. ...
... decelerated when the speed set value is reduced or the direction changed (direction preselection version). Speed control recommences as soon as the load has reduced its speed by friction to the level specified by the set value speed. ...
Motors, generators and alternators
... The figure below shows an alternator consisting of a rectangular coil with sides of 0.20 m × 0.30 m, and 1000 turns rotating in a uniform magnetic field. The magnetic flux through the coil in the position shown is 3.0 × 10-4 Wb. ...
... The figure below shows an alternator consisting of a rectangular coil with sides of 0.20 m × 0.30 m, and 1000 turns rotating in a uniform magnetic field. The magnetic flux through the coil in the position shown is 3.0 × 10-4 Wb. ...
excerpt
... Allowing a motor to reach and operate at a temperature 10°C above its maximum temperature rating will reduce the motor’s expected life by 50%. Operating at 10°C above this, the motor’s life will be reduced again by 50%. This reduction of the expected life of the motor repeats itself for every 10°C. ...
... Allowing a motor to reach and operate at a temperature 10°C above its maximum temperature rating will reduce the motor’s expected life by 50%. Operating at 10°C above this, the motor’s life will be reduced again by 50%. This reduction of the expected life of the motor repeats itself for every 10°C. ...
Chapter 22 MF Practice Test
... At point B. The field is strongest at the north or south magnetic poles, not at the north or south geographic poles. DIF: advanced REF: section 22.1 18. ANS: According to Newton’s third law, they exert the same force on each other. DIF: advanced REF: section 22.1 19. ANS: Electromagnets are magnets ...
... At point B. The field is strongest at the north or south magnetic poles, not at the north or south geographic poles. DIF: advanced REF: section 22.1 18. ANS: According to Newton’s third law, they exert the same force on each other. DIF: advanced REF: section 22.1 19. ANS: Electromagnets are magnets ...
lesson topic 8.1 synchros and control
... one direction during onehalf cycle (view A) and in the other direction during the next half cycle (view B). Because of its inertia, the bar magnet cannot turn rapidly enough to follow the changing magnetic field and may line up with either end toward the coil (view C). ...
... one direction during onehalf cycle (view A) and in the other direction during the next half cycle (view B). Because of its inertia, the bar magnet cannot turn rapidly enough to follow the changing magnetic field and may line up with either end toward the coil (view C). ...
AVR449: Sinusoidal driving of 3-phase
... There are two advantages to this approach. First of all, the maximum line-to-line voltage generated is higher than with the pure sine wave approach, offering higher torque and speed. Secondly, each terminal output is zero for 1/3 of the time, reducing switching losses in the power stage. A side effe ...
... There are two advantages to this approach. First of all, the maximum line-to-line voltage generated is higher than with the pure sine wave approach, offering higher torque and speed. Secondly, each terminal output is zero for 1/3 of the time, reducing switching losses in the power stage. A side effe ...
Centaur Horse Hot Walkers
... Lift Hot Walker from the head only. If you must lift the Hot Walker from the base, make sure that your forks on your lift clear all drive assemblies inside the Walker. You can inspect this prior to lifting by opening up your small inspection door, which is mounted on one side of your Hot Walker. Pri ...
... Lift Hot Walker from the head only. If you must lift the Hot Walker from the base, make sure that your forks on your lift clear all drive assemblies inside the Walker. You can inspect this prior to lifting by opening up your small inspection door, which is mounted on one side of your Hot Walker. Pri ...
Window Lift and Relay Based DC Motor Control
... channels. The hall sensor is powered by the EVDD pin which is capable of supplying up to 20 mA @ 5 V. DC motor: The DC motor is driven by a twin single pole double throw relay. This configuration allows the relay to also act as an H bridge allowing the MCU to polarize the motor in either direction. ...
... channels. The hall sensor is powered by the EVDD pin which is capable of supplying up to 20 mA @ 5 V. DC motor: The DC motor is driven by a twin single pole double throw relay. This configuration allows the relay to also act as an H bridge allowing the MCU to polarize the motor in either direction. ...
Electric motor
An electric motor is an electrical machine that converts electrical energy into mechanical energy. The reverse of this would be the conversion of mechanical energy into electrical energy and is done by an electric generator.In normal motoring mode, most electric motors operate through the interaction between an electric motor's magnetic field and winding currents to generate force within the motor. In certain applications, such as in the transportation industry with traction motors, electric motors can operate in both motoring and generating or braking modes to also produce electrical energy from mechanical energy.Found in applications as diverse as industrial fans, blowers and pumps, machine tools, household appliances, power tools, and disk drives, electric motors can be powered by direct current (DC) sources, such as from batteries, motor vehicles or rectifiers, or by alternating current (AC) sources, such as from the power grid, inverters or generators. Small motors may be found in electric watches. General-purpose motors with highly standardized dimensions and characteristics provide convenient mechanical power for industrial use. The largest of electric motors are used for ship propulsion, pipeline compression and pumped-storage applications with ratings reaching 100 megawatts. Electric motors may be classified by electric power source type, internal construction, application, type of motion output, and so on.Electric motors are used to produce linear or rotary force (torque), and should be distinguished from devices such as magnetic solenoids and loudspeakers that convert electricity into motion but do not generate usable mechanical powers, which are respectively referred to as actuators and transducers.