Timeline for Art Of Electronics - Center Tapped Transformer Efficiency and Current Question, LTSpice Question too
Current License: CC BY-SA 3.0
5 events
| when toggle format | what | by | license | comment | |
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| Jan 13, 2017 at 22:22 | comment | added | jonk | @JeffreyEdwardMessikian Regarding your last question, I was trying to set you up with a situation where you can see the difference with LTSpice. You will see lower current peaks in the voltage sources on the right-hand side, even though the load is receiving the same voltage (and of course current.) When you see that fact, then also notice how often those peaks occur one vs the other. That may help you "see" why. | |
| Jan 13, 2017 at 22:20 | comment | added | jonk | @JeffreyEdwardMessikian Regarding the two capacitors, feel free to replace them with just one and no ground center tap. I did that to just tie in a ground-center there. It's not important. If you replace them both, then use the same value, instead of twice the value I'd earlier indicated. | |
| Jan 13, 2017 at 21:25 | comment | added | Jeffrey Edward Messikian | I understand everything in the text except for only one line.... The line I'm trying to get my head around is "the center tapped transformer is less efficient and the current is twice what it would be for a true full-wave circuit." Why is the current doubled when each half appears 1-1? Only whats in quotes is what prompted me to write this question. | |
| Jan 13, 2017 at 21:25 | comment | added | Jeffrey Edward Messikian | I have to wrap my head around what you said a little. It seems quite different than the text, even as an explaination to my question. For instance, in your Fullwave bridge, you have two capacitors, the text has only one, when it was describled on a page earlier. Both exhibits in the text were shown with transformers. The reason for the inductors in my exhibit is that LT spice does not have transformers. I read how that can be simulated with inductors that are linked. In any case, both of my circuits seem to produce DC output that has a small ripple. | |
| Jan 13, 2017 at 18:45 | history | answered | jonk | CC BY-SA 3.0 |