Recent content by jak9

thanks but one way to calculate the internal resistance is dc load method that is Ri=V1-V2/I1-I2...so now that means that if you apply different loads for the same state of charge of a battery the internal resistance will be different for example if we consider a car battery and when we start...

hi, if suppose a battery is 100% charged and is capable of delivering 12V. Now if i connect a bulb of 40watts across it then their will be a voltage drop and the internal resistance can be calculated. If the same battery with 100% charge is used with a 80watts bulb then again their will be a...

its because of alternator as the output from the rectifier of the alternator is not a pure dc

thanks...these V & I are the reading taken from the battery terminal of a car

well the array is voltage values and the other is current values each array has one column of timevalues and another column of voltage/current values for e.g: - V(100*2)

yes you are right...its because of the values in the array i tried with filters but they too cause phase and magnitude shift so let see what happens...anyways thanks for all your help and advices

thanks...these inputs is an array defined in a workspace...i know the phase shift is because of capacitor which makes the current to lead voltage but i have nothing to do with this because i have to just plot this values in simulink and want to have a zero phase difference so that i can use...

thanks but can't get your point

hello friends, I have a voltage and current input signal in simulink which has a small phase shift between the two signals. Is their a way so that i can eliminate this phase difference to zero? thanks

well after going through lots of literature i conclude that during charging of a battery the terminal voltage is bigger than cell emf so the internal resistance of a cell causes the terminal voltage to change because of voltage drop across it so the internal resistance of a cell during charging...

ok thanks but i think i should take out the Vb as you said in earlier post either i should consider the Cdl or Cb...so i have to think on it

ok from phasor it can evaluated but i am doing it in simulink at real time where the voltage and current signals are changing continuously with respect to time

you mean without knowing the rct and ri i can calculate all the terms? well i know little bit about phasors like in phase and out of phase for capacitors and all i will try to do but friend could you please help me i know i have to read but still

also one thing left out is the input voltage and current signal are not in phase with each other

solving circuit problem hello friends, i have attached a image with this post in which i wanted to find the value of Ri. It is a dc circuit but the input voltage and current have some ripples so its not a pure dc. I have also frequency of ripple which can be used further to calculate Xc if in...