Hi, Thanks!! The Circuit has been finally done except for the clock, please how do can i design a square wave that will give 90 degree interval respectively? My guess was to use an or Gate at the output of the square wave generator to achieve 90 while also using two 'OR gate' in series to achieve 180 and soon?
I have used a 4017 IC to accept a pulse train, and rotate the pulses among four channels.
That way you would need just one pulse generator, and one adjustment of frequency and duty cycle. It would be easier than creating four PWM clocks each needing individual adjustment.
Final question!!
For educational purpose. Can u please briefly explain how the circuit works if u have time, because while i understand how conventional Dc converter operates, i don't understand how this circuit manages to have better efficiency and low ripple current compared to the conventional ones.
By adding a second coil, you have a larger conduit to absorb the energy coming down the line. With a single converter you operate at a certain duty cycle (say it's 50 percent). Heavier wires are needed if you are going to carry all that current in one converter.
By adding a second converter you absorb a greater percentage of the energy in the limited time window that the energy is available. You can also get by with thinner wires, and use smaller coils.
With multiple converters you are also presenting less resistance to the incoming current. Reducing I_squared_R losses.
The battery benefits as well since it is fed a continual, less drastic current waveform, instead of being forced to absorb heavier bursts of current on a 30 or 40 percent duty cycle. (The Peukert effect comes into play here.)
I am not certain how large is the jump in efficiency when going from one converter to two, or from two to three, etc. The quadruple interleaved layout is an exploration, showing (theoretically) how several coils could divide the load. Your project may work just as well with a triple interleaved... or, might find you need a quintuple.
Does the same principle of twin converter apply, apart from the extra phase shift, which i guess is used to reduce to the voltage stress on the switches, hence improving efficiency?
Thanks a lot for your help and apologies for the trivial questions.
View attachment 86992View attachment 86992
It occurs to me that a good comparison is a half-wave power supply to a full-wave power supply.
It's hard for me to be sure how well my theoretical design would work in a real application. So I can only speak theory. I would not be surprised if there is a more efficient way to accomplish what you want to do.