Recent content by KAS90

Thanks a lot everyone, I really appreciate it, the information was very helpful.. I think then I will end up using PWM method for my project.. :)

Hello everyone I have a small question concerning D.C motors speed control. I would like to ask about the "novice method"? I can't seem to find enough information about it, so can anyone just give me a brief explanantion of it? and what is the circuit used for it? otherwise can you give me...

This is an assignment I was told to solve ..the PDF file is attached..I already reached to the derivation of finding the ratios for the full wave recitifier.. Where I got to find that the gain is equal to = 1 . and that because of that R1 = R3..and R2 doesn't make a difference.. However I...

Thanx guys that was a lot of help :) I really appreciate it.. but now I am having a problem connecting the two IC's.. I hope I figure it out..

hi there... I wanted to ask about a way to cascade or let's say connect two sets of 4-bit flipflop JK counters together.. I want to create a circuit that is an up-down counter from 0 to 99..but as it is known, its difficult to use 8 inputs ofcourse.. so the best way is to have two sets of 4 jk...

Hello every1.. I would like just sum help in unerstanding how a voltage comparator works.. I tried to read journals.. books.. but till now, I feel so lost.. can someone just give me a simple explanation of the SIMPLEST voltage comparator? sumthing to help me get on with it... I'd appreciate...

hey there.. I read that brass "an alloy of copper and zinc" doesn't corrode unless more than 15% of zinc is added.. My question is.. what is the reason behind the resistance of corrosion of brass? does it have 2 do with the electronegativity or sumthing like that? I'd appreciate ur response...

hey again.. no 1 has ne idea? I came 2 know that brass is used in the air conditioners..but what is the tube or fitting the aircondiotioner used 4? what's it's function? and is there a kind of test that tests the corrosive property of an alloy or element? I really neeeed ur help..pllllz...

Copper tubes in air conditioners...quick questions..need ur help urgently.. hey there.. I have an assignment where I have to choose a material and research about.. anyway, I chose to talk about copper tubes in air conditioners..My question is.. what is the function of this tube? What is...

Thanx a lot cephied... u really helped .. I appreciate all ur effort a lot.. I'll try then to search more about how a voltage comparator works..I think I'll need 2 use 5 comparators .. I'm just a begginer in these stuff, that's y it's kind of difficult for me .. Thanks again :)

hey there.. I was asked to design a circuit using multisim software of a solar panel tester.. I know I need an operational amplifier.. a diode pehaps.. but I don't have a background concerning the way operational amplifiers work... The lecturer wants us to construct this kind of circuit...

oh ok.. well yeh, that part of (an-1) is a constant.. which doesn't really count in the series.. so what I understand now is that when we get zero for an answer only, the series is said to be convergent.. otherwise it diverges.. but why? I know I ask a lot, but I really want to understand the...

hey there.. I have this series for example: ∑_(n=1)^∞ a n-1 (2n-1/2n)If we apply L'hopital's rule to find the limit, and to see if the series is convergent or divergent, I think we will obtain the answer 1.. so does that mean the series converges towards one (1)? When can I decide a series...

THANX a lot Hallsofivy.. u were a lot of help..as usual lol..

hi mark sorry 4 being late..plus giving a completely wrong question.. ok.. the I realize the problem is for example : f(x)= sinx 0<x<pi it's a problem I want to understand like how is it really solved?