Recent content by Khalid

I have attached the diagram. I haven't designed the circuit so i do not fully understand every part of it but I get the jest of it, its from a project I found online which is HVDC power supply using DC to DC converter. The project is based on using a 12V battery to get 500V 2mA DC. The project...

Say you want to choose a npn transistor which works for 1000V and 4mA (Peak inductance current is around 1A) in the collector side while emitter is grounded. Which parameters should I look into to select a suitable transistor ? for the voltage should I be looking into Vbe ? or is Vce enough ...

If the transformer is the better solution (economically) then I suppose I can use it since main reason it was rejected before is that it was not economically efficient to use it for the desired voltage output. Can you explain a bit on your idea it's a bit unclear for me.

Because I can only reach 2A with a specific load value (around 800Ohm) which is bad since this design is used for testing and will be connected to different loads with different resistance values. What should happen is: no matter what load I connect I should be getting 2A 1.5-2kV DC.

Yeah 1.5kV is fine but 1A was just for simulation kinda. Final design should be any value between 1500-2000V DC and 2A DC. Ripple voltage also should also be low around 1%. At 2A I am getting 1614V. At 1A I am getting 1680V. At no load I am getting 1748V. The problem is the load will be...

I do think it's doable since the professor I'm under told me there is a solution for this problem, but I am not limited to CW so if there is a better solution to achieve 1.5-2kV 2A DC using 220V 60Hz AC through using other circuits I would look into it (Can't use transformers). But I would much...

I did have a normal half wave circuit it could reach the same output with 4 stages, but the problem it had too much ripple (No matter how much I change on capacitance there will always be too much ripple). So I used a normal full wave with two sources (2 110V) I only needed 4 stages but then I...

Thanks for the help, I did increase the capacitance (My calculations shows 15mF for 0.5% ripple which is around 8.5V) and I changed the diodes to a virtual ones for now (Just for simulation still need to find a diode that have high PIV and current). But I noticed a problem on my circuit...

Hello Tom, Yeah I think my post was little confusing but since then I have figured some stuff out so basically here the situation. The final design goal is to use a 220V 60hz AC source to generate a result in the range of 1.5-2kV DC with around 1-2A load current. So for the voltage part I...

Yeah its a typo I meant 2000V. And yeah I am under two professors who are monitoring this project but as of right now this is merely theory and simulations, for the experiment we have high voltage lab in the uni. The experiment probably will be done there under them.

My english is kinda bad sorry if that was confusing but yeah I meant cockcroft walton. I have done two designs (theory and simulations): half wave and full wave which have the same diagrams on the wikipedia page. While the full wave results were good (low ripple) but the problem with the full...

Im trying to design a circuit that switch from 220V AC to 2kV DC using 1 voltage source (without use of transformers). So CW (Cockcroft-Walton) seemed like a good design to do that. Looking at the equations of halfwave CW it looked to me that the optimal number of stages is set if you know the...