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Alternator
Alternator

... • If the battery voltage drops, more current applied to the rotor, increasing the magnetic field strength, increasing the alternator voltage output. • If the battery voltage increases, less field current applied to the rotor, reducing the alternator voltage output. ...
Optimizing High Level Micro Stepping of
Optimizing High Level Micro Stepping of

... As shown in Figure 4, a DAC is used to give voltage to VREFx with minimum resolution. For example, if a 10-bit DAC is used, and maximum value 1024 stands for 2.5 V, the DAC outputs 2.5 V/1024 = 2.4 mV each step. The regulated current in winding is measured by monitoring the voltage of the sense resi ...
To Examine the Properties of a Diode
To Examine the Properties of a Diode

Fig. 4(a) Waveforms for positive and negative half cycles of supply
Fig. 4(a) Waveforms for positive and negative half cycles of supply

Super-E - Clark Transmission
Super-E - Clark Transmission

... • Class F Insulation System • Phase insulation on end turns • End turn lacing between each coil on both ends ensures solidity with no movement • Non-hygroscopic varnish with 100% solids - exceeds 841 specs – 449 frame-up uses epoxy varnish ...
Test Procedure for the LV56801PGEVB Evaluation Board  SANYO Semiconductors
Test Procedure for the LV56801PGEVB Evaluation Board SANYO Semiconductors

DESIGN AND SIMULATION BY USING SMART POWER MODULE
DESIGN AND SIMULATION BY USING SMART POWER MODULE

... Motor damage may occur from over-speeding (running at a rotational speed in excess of design limits) if the unit is operated with no significant mechanical load. On larger motors, sudden loss of load is to be avoided, and the possibility of such an occurrence is incorporated into the motor's protect ...
Glossary of Motor Terms
Glossary of Motor Terms

... The metal container usually on the side of the motor where the stator (winding) leads are attached to leads going to the power supply. Cogging: A term used to describe non-uniform angular velocity. It refers to rotation occurring in jerks or increments rather than smooth motion. When an armature coi ...
HART 1401 - Basic Electricity for HVAC
HART 1401 - Basic Electricity for HVAC

UM0353
UM0353

... When all safety precautions have been taken, the mains voltage can be plugged into the "MAINS" connector. Note: The Protective Earth (PE) pin is not connected to any part of the board (but just to a floating pad, in case it is needed). 6. Use an insulated screw-driver to switch the motor ON by turni ...
Induction Motors
Induction Motors

ME 486 - Automation Building Blocks
ME 486 - Automation Building Blocks

chapter 1 - Εθνικό Μετσόβιο Πολυτεχνείο
chapter 1 - Εθνικό Μετσόβιο Πολυτεχνείο

... stepping motor is capable of receiving the digital signals to generate a corresponding angle variation in proportion to the total number of pulses, the stepping motor can be driven by an open loop without utilizing a feedback mechanism. Therefore, the stepping motor can be easily controlled when the ...
Evolis 24 kV Lateral version
Evolis 24 kV Lateral version

... b Rated short-circuit breaking current from 12.5 kA to 25 kA b Rated normal current from 630 A to 1250 A b Phase distance 250 or 300 mm b MV connection: right or left. ...
DLV7500/8500series
DLV7500/8500series

... *Measurement conditions (Temperature:22 C Humidity:66%) (1) Static electricity Earth the mesurement equipment and measuring person. Grip the screwdriver five times using Ansel Edmont electronic control glove. Turn on the switch of the screwdriver. Measure each part of the screwdriver using electroni ...
Microsoft Word - Rocky Mountain Power
Microsoft Word - Rocky Mountain Power

... kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW kW ...
commercial / industrial customer information sheet
commercial / industrial customer information sheet

Wide-Speed Operation of Direct Torque
Wide-Speed Operation of Direct Torque

... Fig. 4 shows the simulated dynamic responses of DTC IPMSM speed, torque and stator flux-linkage with respect to a step change in speed reference from 0 to 4000 rpm under no-load condition and subject to current and voltage constraints. It is seen from Fig. 4, that a smooth transition between the con ...
A Solid State Replacement for the 62 set dynamotor
A Solid State Replacement for the 62 set dynamotor

... toroidal transformer, which is compact and also has the advantage of not allowing much hum-inducing magnetic flux to escape. Presumably, using a 50Hz transformer, whilst being bigger than the higher frequency ones often seen in switch-mode power supplies, means that the low switching rate generates ...
Test Procedure for the LV5693PGEVB Evaluation Board  SANYO Semiconductors TEST Procedure
Test Procedure for the LV5693PGEVB Evaluation Board SANYO Semiconductors TEST Procedure

... Line regulation is defined as the maximum change in output voltage as the input voltage is varied through the specified range. It is measured by changing the input voltage and measuring the minimum/maximum voltage of the output. Line regulation is defined as the difference between maximum and minimu ...
Start using solid state relays today
Start using solid state relays today

Create PDF - HighFinesse
Create PDF - HighFinesse

COMBINED FIRST AND SECOND SEMESTER B.TECH
COMBINED FIRST AND SECOND SEMESTER B.TECH

... Armature The armature is where the moving conductors are located. The armature is constructed by stacking laminated sheets of silicon steel. Thickness of these lamination is kept low to reduce eddy current losses. Field windings In the case of wound field machines (as against permanent magnet excit ...
DPO3000 Series vs. Agilent DSO5000A Competitive Fact Sheet
DPO3000 Series vs. Agilent DSO5000A Competitive Fact Sheet

BJT and MOS Class AB Output Stages: Comparison and
BJT and MOS Class AB Output Stages: Comparison and

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Stepper motor



A stepper motor or step motor or stepping motor is a brushless DC electric motor that divides a full rotation into a number of equal steps. The motor's position can then be commanded to move and hold at one of these steps without any feedback sensor (an open-loop controller), as long as the motor is carefully sized to the application in respect to torque and speed.Switched reluctance motors are very large stepping motors with a reduced pole count, and generally are closed-loop commutated.
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