Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.
so what your saying is you need not just the frequency but also to keep the phase shift right to achieve maximum efficiency in terms of power transfer at resonance?
1715073605
Yes this worries me too, you are most likely right.
Well If my capacitor value can't change then the only way I can achieve maximum efficiency power transfer is at resonance and the only way to increase total power by increasing voltage because IIRC for a fixed capacitance just one way to increase energy stored and that is by increasing the...
Yes well , I'm sorry if I did not describe this earlier but the series capacitor is a must in my design because the generating coil is on a rotary axis and the capacitor serves as brushless current coupling. Now if you know this, do you still don't see a purpose of using the series resonance of...
Well at resonance the reactance of the series LC becomes zero and only the ohmic passive resistance of the wires/coils are left.
Well if the generating coil on the left side generates 50 Hz current in the primary left side loop, then if I want maximum power transfer at maximum achievable...
The switches are not within this diagram. The coil on the left side loop is a generating coil, current is induced in the coil. You can disregard the LPF block for reasons already discussed here.
But i understood my thinking error. I cannot induce a PWM signal with 50 Hz component within the left...
Also @KlausST Ok. I get it, the 50Hz would be present on the primary loop on the left side , although not much would get through the series capacitor due to it's high reactance.
Are you saying that the low frequency component of the PWM signal would not be able to properly get through the...
Why purely theoretical? Apart from some possible misconception on my part on where to best put the LPF, otherwise I believe what I showed in my drawings is a high impedance AC current source. The left side coil generates high frequency PWM square wave that then after filtering leaves only the 50...
the transformer is there just for voltage step up, the main idea is for one way power flow. Normally 50 Hz or any other frequency flow through a transformer both ways but here the power comes from a coil generating as you said SPWM which I understand is just a better way of doing PWM for a fixed...
@KlausST and @FvM yes, pardon, I did get confused , sure a transformer always works both ways the field couples the current between coils. I do know that. I got mistaken in my schematic, what I did wish to make is a schematic where there is a loop with a coil in it that generates HF, but the...
I will make a setup and i'm almost sure how it should work, but I want to check. Sorry for my previous threads being somewhat confusing.
So the idea is this. I have a high frequency generating coil part of a circuit and I need that high frequency to be converted down to mains frequency.
I will...
Ok , pardon for not being full with all the details, I asked this as a more general question. But ok for you and everyone out there let me fill in some gaps.
The coil on the left is a generator coil, the transformer on the right , just assume it has low reactance loaded secondary, the...
So I have a curious question. I have a loop with two capacitors and two inductors. The first standalone inductor is a high frequency generating coil within this loop, the second inductor is a primary of a transformer. The capacitors are coupling capacitors.
my question is this, if the capacitors...
I'm not sure I got what your saying? Are you saying what I already said about increasing voltage across the cap to maximize power transfer at low frequency ?
1710241230
Huge coil with low reactance? How does that work? huge coils usually have ever larger reactances unless your talking about...
This question is not regards to any specific circuit or design but more of a general inquiry.
Say you have a small capacitance , from somewhere of 500 pF upwards to maybe 500 nF maybe p to 1 uF at best.
Now say I wish to transfer AC current through it , for example , at 50 Hz.
Now for a...
Ok, I guess I will first do the test the way I had planned to see the results and then come back to figure out improvements.
Who said I can't use coax, I can use pretty much anything just that it has to be well shielded.
For high frequency coax would suffice as the skin depth is very small. But...
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
