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Thyristor convertor type AVR(Automatic Voltage Regulator) is made of Thyristors(Silicon Controlled Rectifiers,SCRs). We know that output DC voltage from an SCR will not only depend upon the r.m.s. value of Input voltage applied, but also at the angle at which the input AC cycle is fired (using gate signal). If the firing angle is zero(in a simple circuit), then maximum DC output voltage will be obtained.If the firing angle is changed from 0 to 180,then maximum to minimum voltage is obtained. This property could be used to build an AVR. The firing angle proportional to Output voltage could be used to trigger the thyristor,in a closed loop manner and a nearly constant DC voltage(Average Value) can be obtained.An invertor circuitory could be utilised to get a regulated AC supply. Many other configurations can be build from thyristors to get a regulated AC supply.
6951min qualification for sbi clerck is 10+2, so can a clerck b reach to an officer rank at any time in future by promotion or departmental examination with having no graduation degree.
1 3986how to prepare for exam for the post of DIPLOMA TRAINEE at HAL and also i want previous question papers.please send me.
2428Hi..I am Ramya Naveen...I hav applied for clerical post in karnatak bank...i m having exam on jan 4 ,2010.Pls send some sample papers to my email id, i.e, ramyanavi@gmail.com
2418Dear Freinds tell me Answer for this question who knows? 1) What is the role of Indian Air Force "Ground Dutty Officer" ?...
2131What was the cut off for SSC Tax assistant examination in previous year and what may be the cut off this year?
2248hi iam selected for boi interview,they have asked me to bring an application form along with call letter where can i find that application form??will they give at the venue,or shud i download it from somewhere?? please answer
3 6869plz send me last 10 years bank clerk papers for union bank clerk for preparation. thank u..plz hurry up..its urgent
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what is the ratio of selection in SBI clerical interview 2010?
Hi i have a problem.I have been completing my graduation & p.g from correspondence universities.Now for sbi interview i want character certificate from this universities.but these universit. do not issue characeter certificate.But in sbi it is required.Now what can i do?Please help me.My interview is on 29th april.
What other TCP setting can you modify besides MTU to shorten packets?
what is the salary for clerk in bob? i just got appointment letter... the basic salary mentioned as 7200 + other allowances. I would like to know the total salary with all the allowances included.. anybody can help me out !!!
Please tell me some speeches on different types of technology
Tel me da fee structure of RACE?
hi i have been salected for interview of sbi clerk plz send me some questions that often asked in interview hall
please send meinterview questions for airport authority as i have qualified written of junior executive electronics atmy email id nehasinghsisodiya@gmail.com
Briefly describe your ideal job
If OS crash that how to get outlook backup?
What is differant about upload as opposed to download?
what is mean by domain interms of software ? can you expain in specific in terms of web based , networking all those ?how to choose the domain for doing a project in software feild ?
What is your opinion on the implementation of a new subject in the curriculum and which subject you would like to include?
i want to do ncfm certification course in kanpur plz. provide information
mention some of the major contribution made by you in present & previous jobs- Sales Representative
