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BQ24721(C) - Texas Instruments
BQ24721(C) - Texas Instruments

... FET. Connect the FET source to the PVCC node and negative side of the input current-sense resistor. Connect the FET drain to the system load side. Recommend placing a 100-kΩ resistor from the gate to the source of the Bypass FET. If needed, an optional capacitor from gate to source of the ACFET is u ...
BD6079GWL
BD6079GWL

... latch. Timing of Q1 and Q2 is precisely adjusted so that they will not turn ON at the same time, thus putting them into non-overlapped relation. Details of the non-overlap time slot will be specified. In the period when Q1 is ON, energy is accumulated in the external inductor, and in the period when ...
Control of Multi-terminal VSC-HVDC Systems
Control of Multi-terminal VSC-HVDC Systems

ELMO - Projector - ST1200 - Service Manual
ELMO - Projector - ST1200 - Service Manual

... 6. Pass the magnetic pre-recorded test film (5000 Hz). 7. Connect both the resistor (8 ohms, 10W) and the voltage meter (AC 10V max.) parallel to the output terminals of the amplifier (Extension speaker cord terminal). 8. Run the projector, move Sound head gradually to search the position where the ...
Thevenin & Norton Equivalent
Thevenin & Norton Equivalent

... Thévenin Equivalent With Dependent Below we have C5, the Thévenin Equivalent circuit of the original C1 circuit With dependent sources the convenient short-cut (p. 19 above) ...
Manual - ATB Automation
Manual - ATB Automation

... § Control of rotary synchronous servo motors, asynchronous motors and torque motors § HIPERFACE DSL One Cable Solution § Electronic motor name plate via HIPERFACE DSL and EnDat 2.2 digital encoder interfaces § Integrated EtherCAT communication § STO safety technology using terminals or STO and SS1 u ...
PRODUCT HANDBOOK
PRODUCT HANDBOOK

Evaluation of Back-EMF Estimators for Sensorless Control of
Evaluation of Back-EMF Estimators for Sensorless Control of

... interior-permanent-magnet machine has been performed to validate the analyses. Key words: Back-EMF estimator, Phase locked loop, Permanent magnet synchronous drive, Sensorless control ...
Paralleling Of Power MOSFETs For Higher Power Output
Paralleling Of Power MOSFETs For Higher Power Output

ZXTC4591AMC Features Mechanical Data
ZXTC4591AMC Features Mechanical Data

... written approval of the Chief Executive Officer of Diodes Incorporated. As used herein: A. Life support devices or systems are devices or systems which: 1. are intended to implant into the body, or 2. support or sustain life and whose failure to perform when properly used in accordance with instruct ...
The Complete Guide to Electrical Insulation Testing - Techni-Tool
The Complete Guide to Electrical Insulation Testing - Techni-Tool

... extremely large compared to the other kinds; leakage current is relatively minor. AC frequently is used for highpotential testing; voltage is increased to some specified point to see if the insulation can stand that particular voltage. It is a GO/NO-GO type of test and can cause deterioration of the ...
Power-Gard Technical Application (Littlefuse)
Power-Gard Technical Application (Littlefuse)

Controlled Switching of HVAC Circuit Breakers: Application
Controlled Switching of HVAC Circuit Breakers: Application

... are rarely used. Controlled opening and closing of HVAC breakers offers an alternative to conventional methods. Controlled switching of HVAC circuit breakers is becoming more widely available for switching shunt capacitors, shunt reactors, transformers, and transmission lines. Controlled switching p ...
Laboratory Exercise 4 The Solenoid (two weeks – 200 pts)
Laboratory Exercise 4 The Solenoid (two weeks – 200 pts)

... Both types, linear and rotational are available as either a holding (continuously energized) or as a latching type (ON-OFF pulse) with the latching types being used in either energized or power-off applications. Linear solenoids can also be designed for proportional motion control were the plunger p ...
DC-DC Converter
DC-DC Converter

6A Boost/Inverting DC/DC Converter with Fault Protection
6A Boost/Inverting DC/DC Converter with Fault Protection

... switch that can be tied together for a total current limit of 6A. The LT3579 is ideal for many local power supply designs. It can be easily configured in Boost, SEPIC, Inverting, or Flyback configurations, and is capable of generating 12V at 1.7A, or –12V at 1.2A from a 5V input. In addition, the LT ...
- Armstrong Fluid Technology
- Armstrong Fluid Technology

... and voltage for controlling the speed of three-phase AC motors. The motor current shall closely approximate a sine wave. Motor voltage shall be varied with frequency to maintain desired motor magnetization current suitable for the driven load and to eliminate the need for motor derating. When proper ...
Lateral SCR Devices with Low-Voltage High
Lateral SCR Devices with Low-Voltage High

... signal level at the input or output pins will be held at “0” due to the very low turn-on resistance of the LVTSCR device. This leads to malfunction or operation error in the CMOS IC’s. So, for using the LVTSCR device to protect the input or output pins, the LVTSCR must have an enough noise margin ag ...
Full-text
Full-text

... t3 – time interval between start and end of powering impulse. Thus the most reliable evaluation can be determined after switching off powering impulse from relay windings on time interval t6 (fig. 3/b). Reliability is also due to the fact that the pulse amplitude is set to 40 ÷ 60V and duration t6 > ...
Transition from MELSEC-I/OLINK to AnyWire DB A20 Handbook
Transition from MELSEC-I/OLINK to AnyWire DB A20 Handbook

... ● Configure safety circuits external to the programmable controller to ensure that the entire system operates safely even when a fault occurs in the external power supply or the programmable controller. Incorrect output or malfunction due to a communication failure may result in an accident. (1) Eme ...
ARCAT spec 262600 2009-9-15
ARCAT spec 262600 2009-9-15

... 1. Recommend spare parts list and list prices shall be supplied. 2. Critical Spares - Spare parts that are identified as being associated with long lead times and/or are critical to the unit’s operation. These spares should be held in reserve by the Purchaser to limit unforeseen downtime. 3. Mainten ...
Power Quality Issues and its Mitigation Techniques - ethesis
Power Quality Issues and its Mitigation Techniques - ethesis

Loss of AC Voltage Considerations - pes-psrc
Loss of AC Voltage Considerations - pes-psrc

Service Manual
Service Manual

... This machine is not approved for use on public paths or roads. This machine is not suitable for picking up hazardous dust. Do not use scarifier discs and grinding stones. Nilfisk-Advance will not be held responsible for any damage to floor surfaces caused by scarifiers or grinding stones (can also c ...
1395 Digital DC Drive
1395 Digital DC Drive

... improper usage of oscilloscope and other test equipment. The oscilloscope chassis may be at a potentially fatal voltage if not properly grounded. If an oscilloscope is used to measure high voltage waveforms, use only a dual channel oscilloscope in the differential mode with X 100 probes. It is recom ...
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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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