Regarding HITEK POWER - GMA1000P - CONVERTER, DC/DC, 1.5W, +1000V Can I connect these in series/ parallel like batteries?
Thanks!
Thanks!
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I assume that you are talking series there, but what about parallel? Could I double my wattage capacity by putting 2 in parallel? That's the one I'm really interested in.No.
Unfortunately not. That would be great if they did.
If you had two 12v to 100V converters and tried to connect them series, you would blow the input circuit of the second converter to smithereens.
The second would be designed to have 12v input NOT 100v.
looks like a double to me! lol.Should be possible. You would double your current while retaining your voltage.
That is not the same as doubling your wattage.
In series you double voltage keeping current.
In parallel, you double current keeping voltage.
At 12v, 3 watts is .25A
If you paralleled that, you would have 12v @ .5A = 6 watts
Not sure, but I think you might be the only one talking parallel. What if you put a big capacitor in parallel with your 2 (or 3) HV converters? Then would the capacitor be the one reacting to load changes? I guess probably not, or you wouldn't be designing a controller to counter it.The supplies would have to be well matched in terms of feedback response and set point, otherwise the fastest reacting or lowest set point unit would be taking on all changes to the load. I am currently designing a 3x parallel SMPS with a single controller to counter this...
I'm making a HV continuity/leakage tester to monitor cables as they go through a certain phase of production. I could not find any 1KV or better DC supplies, but I agree, if I could find one it would be better. Since it's for work, time is more important than money. I am trying to buy as much off the shelf stuff as possible and avoid too much tinkering with components, as it appears to my direct supervisor as "playing." He would rather see me with a wrench in my hand.Make sure the output of the supplies explicitly states "Floating outputs", or "Floating Ground", otherwise it won't work.
What is the application of the high voltage? It may be easier/cheaper to start with AC and use a voltage "ladder" of capacitors and diodes.
There is no way to say good things about your supervisor. Seriously, designing a circuit looks like playing? Either way, consider a microwave over transformer. They give out 2kV, but if you need 1kV consider rewinding the secondary. Or, you could buy/scavenge a 230Vac trafo, and run it on 115Vac mains.I'm making a HV continuity/leakage tester to monitor cables as they go through a certain phase of production. I could not find any 1KV or better DC supplies, but I agree, if I could find one it would be better. Since it's for work, time is more important than money. I am trying to buy as much off the shelf stuff as possible and avoid too much tinkering with components, as it appears to my direct supervisor as "playing." He would rather see me with a wrench in my hand.
All I need is a 1KV 3W or better supply. AC/DC or DC/DC doesn't matter
A big cap (not BFC) would definitely help. It looks like you're looking to use commercial products in series/parallel; I wouldn't recommend it; not without looking at system stability and component tolerances, first. Some DC/DC up-converters can be stacked quite easily, such as in Marx generators. They don't do parallel very well, though!Not sure, but I think you might be the only one talking parallel. What if you put a big capacitor in parallel with your 2 (or 3) HV converters? Then would the capacitor be the one reacting to load changes? I guess probably not, or you wouldn't be designing a controller to counter it.
Timrobbins, Am I getting what you are saying?....tyblu, those modules are semi-regulated and short-circuit protected. Paralleling them is highly likely to be similar to the little Newport style dc/dc's, where you should achieve 10-20% matched load sharing, and would use an inductor or diode in series with each output feeding a common cap to accomodate the non-synchronous output ripple, and they would be un-conditionally stable .
They would be a very convenient simple solution to the application, as the 12VDC input is regulated.
Ciao, Tim
Any reccommendations on a cap size? I already planned on having a big mambajamba in there make sure It will jump across air if given the opportunity.A big cap (not BFC) would definitely help. It looks like you're looking to use commercial products in series/parallel; I wouldn't recommend it; not without looking at system stability and component tolerances, first. Some DC/DC up-converters can be stacked quite easily, such as in Marx generators. They don't do parallel very well, though!
The one I'm doing is only 19V, made for small size, so no large caps allowed.