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Power Supply -5V Question


A. Q) Is there more switching loss using Sinusoidal control than Trapezoidal control. Will this be sufficient, is there anything I should look for on the power supply to be sure that this will do the job? Q) Does back-EMF vary with motor load or speed? Source

Has this been officially confirmed? 2/22/20171:43:14 AM realjjj At the time some were speculating that they use string stacking so it's 32+32L, maybe that's why you were left thinking 32. 2/22/20171:40:51 Q) During start of motor, if the rotor is in between two phases, then how do you excite the stator? What is the life cycle of a typical customer program? Thank you, Robert Harrison - Stepaside, Dublin, Ireland (2003) A. http://www.completepowerelectronics.com/power-supply-related-interview-questions-answers/

Power Supply Test Questions

The principle risks relate to disruption to our supply chain or to a major supplier. I am probably just gonna buy a new one. XP operates from 29 locations in Europe, North America and Asia.

  1. A) Increasing the number of rotor poles will decrease the amount of torque ripple as the electrical speed of the motor increases for the same mechanical speed and torque ripple is
  2. The worst case would be if when the system starts, it might off by one Hall state for a very brief amount of time.
  3. A power converter is an essential hardware component required in every piece of electrical equipment.
  4. Browse other questions tagged power-supply or ask your own question.
  5. Bitflip-resistant composite numbers Should we always specify ID attribute in HTML?
  6. So it is an implementation of sinusoidal PWM.

I am looking for a supply that I can run in my aluminum anodizing tank, Nickel, Copper and Chrome plating tanks too. If you need a product/service, please check these Directories: JobshopsCapital Equip. & Install'nChemicals & Consumables Consult'g, Train'g, SoftwareEnvironmental ComplianceTesting Svcs. & DevicesUsed & Surplus ©1995-2017 finishing.com -Privacy Policy How Google uses A) Nope, they are separate control techniques each with their own advantages and disadvantages. Media Videos Press Releases Sustainability Contact Us UK Contact Questions and Answers Who We Are > Questions and Answers Questions and Answers Q.

A) For trapezoidal (six-step), it is unlikely that this would happen. Viva Questions On Smps How would you account for this in algorithm-based sinusoidal control? solved Best PSU (Power Supply Unit) under 50$ solved I currently have a HBA008-ZA1GT 350W power supply unit and I need to know if it's an ATX or an SFX PSU http://electronics.stackexchange.com/questions/229345/power-supply-replacement-question A) In the examples we were only talking about a single pole-pair motor.

The power supply should also have a combined +12 Volt continuous current rating of 27 Amps or greater and have at least one 6-pin PCI Express supplementary power connector.Total Power Supply A) Multiple pole pairs means that the motor magentic field will be spinning faster than the mechanical rotor, this helps improve torque ripple. Q) How can you make a motor stall at precise external resistance/torque? Q) 1) When you refer Space Vector is that "Space Vector PWM control"?

Viva Questions On Smps

How can I stop my colleagues excluding me from socialising after showing my sporting skills? Q) Why are Delta and Wye topologies used, as opposed to using 3 separate coils? Power Supply Test Questions Next page: Day 2: Trapezoidal (Six-Step) BLDC Control Email ThisPrintComment Page 1 / 3 Next > Comments View Comments: Newest First | Oldest First | Threaded View [close this box] Objective Question On Smps Get the answer ZeroThierJan 7, 2017, 4:46 PM TheStrike13 said: ZeroThier said: You may be right.

We present them here so everyone can learn something from each others questions. http://dotbowl.com/power-supply/power-supply-question-how-many-watts-do-you-need.html A. ie, Line Regulation = Change in Output Voltage / Change in Input Voltage = ΔVO / ΔVIN Load Regulation: The load Regulation is expressed as follows Load Regulation = [Vno_load - Vfull_load] / Switching power to a sensor Quantum Based AI getting around Isaac Asimov's "Three Laws of Robotics" How did the destruction of the Ring cause Arwen to change from Evenstar to Morningstar? Smps Questions Answers

Q) Would Id be non zero on an induction motor? Q. Q) How critical is the angle theta measurement? have a peek here Q) What it is HFI method?

For the same load current, the forward voltage drop Vf is less in schottky diode compare to normal rectifier grade diodes. A. A) There isn't too much noise when running at a speed above about 10% since that is where the back-EMF will become larger and less subject to noise.

Answer 1 Yes No 10 of 11 people found this useful As per the specs it does (100-240 range): www.apple.com /airportexpress/specs/ (remove space between .com and "/" as Q&A doesn't allow

VA is the Volts times the Amps output, Watts is the Volts times the Amps input. By including diode in the phase line we can protect the circuit against applying reverse voltage. Sign In. {* #registrationForm *} {* emailAddress *} {* newPassword *} {* newPasswordConfirm *} {* displayName *} {* firstName *} {* lastName *} {* addressCountry *} {* companyName *} {* eetimesJobfunction Privacy Policy Terms of Use Sales and Refunds Site Map Looking for something?

Since the motor is simply an RL filter modulating the PWM in a sinusoidal pattern will create a clean sinusoidal signal in the windings. A) Assuming the motor has no inerta, it should start the motor. The internet is largely anonymous; some names may be fictitious and some recommendations may be deliberately harmful. Check This Out XP's manufacturing facility has an excellent track record in this respect and the decision in 2006 to move into manufacturing has opened up many new revenue opportunities that were previously unavailable

Q) Which complementary technique/measurement would you recommend to use when controlling the speed at low RPMs? A) The six-step startup is performed using an "align and go" technique where the stator is held at a fixed position in order to align the rotor to it. I am new to this and would love to cap off all my issues in one go with 1 power supply I have a 0-24 V / 50 amp Constant DC A) Yes, vector (FOC) control works very well at low speeds assuming that you have the motor angle information.

All rights reserved. Both feedback are at 60-degree resoluiton. What type of supply would you recommend for various plating and anodizing processes? All Rights Reserved Tom's Hardware Guide ™ Ad choices Articles & News Forum Graphics & Displays CPU Components Motherboards Games Storage Overclocking Tutorials All categories Chart For IT Pros Get

Asked by Judy P from Pickering Apr 3, 2016 Flag as inappropriate (Is it necessary to use a transformer or voltage converter to charge an I-Phone or I-Pad when travelling to For example, many motors are BLDC PMSM. Q. Answer 2 Yes No 10 of 12 people found this useful Does ITV need an adaptor for 120 volt to 220 volt power Answered by Mary Lynn C from Burlington Jan

Q) What's the difference between BLDS sinusoidal controlled and induction motor with sinusoidal vector control? So, only 6-step makes sense. Q) You mentioned startup when using Hall effect sensors. My PC starts up and then it just shuts down, also when I start a game my PC shuts down.

This is covered in greater detail in the third class. So they are used in high frequency applications like SMPS. [6] How to protect the power supply against over voltages or surge voltages? This three-part class will go over the basics of controlling brushless dc motors (BLDC). A) When doing sensorless six-step, you guess as to the first commutation step and start stepping through the commutation table at a slow rate to encourage the rotor to rotate with

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