LabVIEW
DC DC Boost simulate
Hi Ruben,
@Rubennnn wrote:
but i have problems:
1- the waveform of the current on the capacitor is negative and to get the correct (positive) values I have to put the inductance "L" = 750H, and is the voltage correct?2- I don't understand what I should do in LabView in case I have a reactive load
would anyone know how to help me?
Do you know the formulas to calculate/simulate your electric circuit?
Can you write them down - before you implement them in LabVIEW?
Btw. you should also cleanup your VIs and remove all those Rube-Goldbergs!
- There are specific functions for operations like "+1" and or to convert a boolean value into 0/1.
- There absolutely is no need to test a boolean value to output either TRUE or FALSE…
- Providing a clean blockdiagram helps to understand your code and helps to minimize possible errors…
Example for your PWM subVI:
LabVIEW is a programming language, not a circuit simulator. Of course LabVIEW is flexible enough to simulate anything you want once the math is worked out! Do you have a link to a website that shows all the math you need here?
In order to use LabVIEW for this, start with a few tutorials and learn the basics. your code is quite questionable as has already been mentioned. There are also glaring race conditions, for example the "Resistenza" local variable could potentially be different from the value used in the calculation if the control is changed during the run. Shouldn't your shift registers be initialized? There is a primitive for 1/x. I doubt you need the formula node. Why do you need two shift registers if one of them is always zero? Seems redundant. Don't use unusual connector patterns for subVIs. Why is the "i" input I64? Makes no sense! Why is Vinput written 50x per second if the value never changes? To get the Y array from a waveform, use "get waveform components" because "fromDDT" is NOT the reasonable tool for that.
@Rubennnn wrote:
I propose again the two questions asked previously:1- the waveform of the current on the capacitor is negative and to get the correct (positive) values I have to put the inductance "L" = 750H, and is the voltage correct?
2- I don't understand what I should do in LabView in case I have a reactive load
These are theoretical questions and have nothing to do with the programming language used (e.g. LabVIEW). Once you work out the math, just implement it. Have you got all the formulas?
Hi Ruben,
@Rubennnn wrote:
(I have simplified the circuit) if I wanted to have the shape of the triangular signal, as triangular as possible how could I do? that is, the descending segment must start from where the increasing one arrives and vice versa, how could I do?
There still is much room for simplification!
(No need for a local variable, no need to use boolean constants to set the "Stato" indicator when you can simply use a wire to the case structure condition, no need for I64 datatype and QR with DBL when all those values should be of I32 datatype, …)
You already create a triangular waveform: when you need a "full period" of that waveform then you should create just a full period of that waveform! Then index one sample after the other from that full period signal:
Hi Ruben,
@Rubennnn wrote:
where if I wanted to have the triangular shape of the signal, as triangular as possible how could I do? that is, the descending segment must start from where the increasing one arrives and vice versa, how could I do?
When you don't get the expected result, then your formulas are wrong (or not as accurate as you need them to be)…
I think you already were asked that before: can you write down all the formulas you need - before you start to implement them?
Btw. why don't you implement any of the advice you got here in your thread?
