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Everything Else AllOther (1674) 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.
6884min 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 3845how to prepare for exam for the post of DIPLOMA TRAINEE at HAL and also i want previous question papers.please send me.
2357Hi..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
2346Dear Freinds tell me Answer for this question who knows? 1) What is the role of Indian Air Force "Ground Dutty Officer" ?...
2062What was the cut off for SSC Tax assistant examination in previous year and what may be the cut off this year?
2160hi 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 6642plz send me last 10 years bank clerk papers for union bank clerk for preparation. thank u..plz hurry up..its urgent
2093
WE HAVE 2 YEAR CONTRACT WITH VODAFONE FOR PROVIDING POSTPAID SERVICES TO OUR ORGANIZATION. THE FIRST BILL CAME FOR MONTH OF JAN 2010 OF AMOUNT Rs. 17695/- . I HAVE TO CALCULATE TDS ON THIS AMOUNT OR NOT ? IF, YES THEN MY QUESTION IS TDS IS MADE ON WHAT AMOUNT AND ON WHAT PERCENTAGE.
What are prospects for future growth in this community and its schools?
Tell me whom you would like to emulate. Why?
is this sentence correct ??? " i had completed "
what is net salary increase for bank employees/officers , can they live with dignity with this salary
What is the strong quality on u that can a company hire for this post
what is the process delete account on it site?
How can you reduce drop out in middle school?
how to calculate an ohmmeter(multiple range)?.. kindly show your computatations?.... plsss answer b4 feb. 1, 2010....... it is important thing..... hope for your kindness...........
Describe your fears of being a teacher.
In India the first book was printed in 1561.and who is the author What was its name? and in which language ?
Why we calibrate pH meter with buffer 4,7 and 9.2
what is the role of buying house in import-export and how does it work?
how do they cal for SBI interview? based on merit or roll no?
Is it morally wrong to attempt to climb a mountain?