Home > Power Supply > PowerSupply Question

PowerSupply Question

Contents

There is no way you will copy the design inside an IC, IC designs are wildly alien to anything you can make in discrete components, but the TOPOLOGY is what you But the term "bench" is descriptive to many folks, as it conjures up a mental image of a DC power supply used on an engineer's or technician's bench for a myriad When too much energy is stored, the storage device (e.g. This way, you won’t have to measure any component’s value more than once. http://dotbowl.com/power-supply/powersupply.html

Normal AC line voltage variations are on the order of ±10%, but can be more when many heavy loads are utilizing the line at the same time. It is important to keep in mind that often the burnt component is not the original source of trouble, but may be a casualty of some other component fault. Notes: It has been my experience that students require much practice with circuit analysis to become proficient. By using MOV (Metal Oxide Varistor) we can suppress the surge voltages. http://www.instructables.com/answers/Power-Supply-Question/

Power Supply Test Questions

It depends on what you mean by "best". A) I'm not aware of microcontrollers that have a built-in FOC block, most microcontroller manufacturers provide an FOC algorithm that is optimized for their specific microcontroller. What is the load regulation? 09% 87 % 72 % None of the above Answer : 1 Q25. Another reason for following this method of practice is to teach students scientific method: the process of testing a hypothesis (in this case, mathematical predictions) by performing a real experiment.

  1. Question 26 Calculate the approximate DC output voltage of this power supply when it is not loaded: Reveal answer Hide answer Vout ≈ 21.4 volts Notes: Ask your students to
  2. A.
  3. What does it mean for the input to be “DC-coupled,” and why does this cause the line to disappear from the screen when we increase the vertical sensitivity?
  4. This is covered in greater detail in the third class.
  5. Q) How can the PI controllers be tuned?
  6. A problem of the typical linear power supply is the size and weight of the transformer.
  7. Look for the banana jacks to be spaced at 0.75 inches (19 mm) so that the dual banana plug adapters used with coaxial cables can be used.

In this regard, a transformer does not act as a reactive device, but a direct power-coupling device. Why is the issuer certificate different at my workplace and at home? Q) How is speed/torque control implemented with six-step control? Commercial Power Supply Has Voltage Regulation Of This is very useful especially when doing more complex setups like generating dynamic voltage steps using list mode.

A certain regulator has a no-load voltage of 6 V and a full-load output of 5.82 V. Mcq On Power Supply I would personally not hesitate to make a harness that connects to the GPIO pins, so that I can bypass USB cables to be sure that I don't run into bad The simple "series" model of a capacitor or an inductor places the pure reactance in series with a pure resistor, whose value is usually called the ESR. http://www.xppowerplc.com/html/about/questions.asp They answereed questions about ST's giveway product, the Nucleo STM32 Motor Control Pack kit.

Challenge question: based on the voltage measurements taken, which do you think is the more likely failure, an open primary winding or an open secondary winding? Ac Power Supply Mcqs Check to see if the supply has remote sensing. For a sinewave, the peak voltage is \$\sqrt2\$ higher then the RMS. Sign in Change Password {* #changePasswordFormNoAuth *} {* newPassword *} {* newPasswordConfirm *} {* /changePasswordFormNoAuth *} Password Changed Your password has been successfully updated.

Mcq On Power Supply

The outputs can be set to timed operation: after a time interval has passed, the output turns itself off. http://electronicspost.com/multiple-choice-questions-and-answers-on-regulated-dc-power-supply/ The worst case would be if when the system starts, it might off by one Hall state for a very brief amount of time. Power Supply Test Questions Line Regulation: The line regulation is defined as the change in output voltage for a change in line supply voltage keeping the load current and temperature constant. Multiple Choice Questions On Smps If the value is off by more than about 5-10% it can cause a lot of efficency loss and could lead to motor stall.

XP Power has set its self the goal of the being the leader in our industry in addressing the effect we have on the environment. navigate here Careful, optimized switching mode designs can realize efficiencies of 95%, but the typical SMPS is around 75% efficient, still much better than the typical linear supply. References Appendix 1: Glossary Download Guide Introduction Power supplies are amongst the most popular pieces of electronic test equipment. I'd hazard a guess that the space for the load resistor may be for this purpose, especially if being used as a bench supply where the load may not always meet Objective Question On Smps

From this information, determine some likely component faults and explain your reasoning. I am an M.Tech in Electronics & Telecommunication Engineering. The development of an industry leading in-house manufacturing capability and vertical integration is at the heart of this strategy and is leading to multiple new program wins which are driving our Check This Out Ask your students what purpose a power supply has with regard to voltage.

The supplies may need to have control lines connected together so that they can intelligently share the load. Series Voltage Regulator Viva Questions These are very fundamental questions related to power supply topic. power-supply voltage rectifier rms bridge-rectifier share|improve this question asked Mar 23 '16 at 12:24 JRA 13 2 Come on!

Question 13 What will be the consequence of one diode failing open in the bridge rectifier of a single-phase power supply?

Resistors need to be non-inductive. Based on this voltage measurement and the knowledge that there is zero DC output voltage, identify two possible faults that could account for the problem and all measured values in this In our country, the standard voltage in houses is 220V AC. Which Of The Following Statements Does Not Describe An Advantage Of Digital Technology You can control BLDC motors without becoming a motor expert.

The supply has a number of useful features. The name describes their main purpose, which is to act in place of a battery. You'll need to measure the AC voltage and AC current going into the power supply. this contact form Q) Resolver?

These reduce efficiency and create hot spots. Related Posts: Fuse Terminology Power Electronics Basic Interview Questions : Set-4 Power Electronics Technical Interview Questions: Set-2 Thanks for reading... SCPI-like SCPI has helped greatly, but isn't a complete solution, because new features get added that require new commands. Googling for "rms voltage" gives this page as first link. –Dmitry Grigoryev Mar 23 '16 at 12:34 I've been there but I don't really get what every word means.

What differentiates XP from its main competitors? The biggest impact is if you manually measure the motor electrical parameters. A) Yes, adding motor poles will reduce torque ripple as this will increase the electrical speed of the motor for a given mechanical speed and torque ripple is reduced at faster In this case is it then better to use Field Oriented Control?

It probably wouldn't cause any startup issues. Q) How do you ascertain the alignment of the Hall sensor placement relative to the stator pole locations? Here is a rundown of what the components will do: OK, I refined my plan to this general specs: Input Voltage range:. . . .7-24 Volts Voltage:. . . . . Some power supplies instead use 10-turn pots for adjustment.

A Zener diode that has very narrow depletion layer will breakdown by ……… mechanism Avalanche Zener Both avalanche and Zener None of the above Answer : 2 Q13. Blog Q&A: BLDC Motor Control Class Questions Adam Reynolds, Solutions Architect LineStream Technologies2/21/2017 00:00 AM EST0 comments post a comment NO RATINGSLogin to Rate Tweet Here are the Q&As from EE Of course it was 300mm. Q&As Day 1 Controlling BLDC Motors | Part 1: Control Theory Submitted Questions Detail (Q- Question, A-Answer) EE Times University: Controlling BLDC Motors Day 1: Controlling BLDC Motors | Part 1:




© Copyright 2017 dotbowl.com. All rights reserved.