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This is interesting:On Fri, 16 Feb 2007 14:18:55 -0500, CBFalconer <cbfalconer@yahoo.com
wrote:
John Larkin wrote:
... snip ...
All it takes is an infinite capacity capacitor. The turn-on time
and inrush current may be high. However it avoids the need for a
UPS. Once they get the breakdown voltage up and get them into
production we can have all the electric cars we want, and dispense
with all batteries.
John Larkin wrote:
Please post the schematic of a zero-ripple switcher.
John
Sorry, but that feature is only available on the 0 volt model.
You ain't real bright. You must have been daydreaming aboutAll it takes is an infinite capacity capacitor. The turn-on time
and inrush current may be high. However it avoids the need for a
UPS. Once they get the breakdown voltage up and get them into
production we can have all the electric cars we want, and dispense
with all batteries.
Zero ripple is a real thing.
Indeed there are the topologies of the switchers with exactly
zero or almost zero ripple, assuming the ideal symmetry of
everything.
Like a polyphase switcher with *big* inductors? But I don't want
"almost zero ripple", I want the real thing.
Zero ripple is a real thing. Imagine the two identical bucks
operating 50/50 duty with 180 degree phase shift on the common load.
Ideally, there will be no ripple at the load at all. There are
numerous patents on the variations of this idea, allowing to adjust
the duty, different topologies and such.
I don't beleive you didn't understand what is the previous quoting about.Bullshit.
It could be done better then that.The last supply I designed with our engineering group was for a CAT
scanner, and it was EXACTLY 1500 volts, regulated to within one volt,
and it had 2mV of ripple.
Good for you. Although very slow.That was AT the switching frequency of
17kHz at the full 250 Watts output.
That took a half year and two iterations to achieve.
1.5uA is not much.We also made an xray supply that made 4kV at 1.5uA, and that had only
2mV of ripple at rated loading.
You don't have to preach that 2 + 2 = 4.Linear OR switcher, under full rated load, there IS going to be
ripple voltages present. Period.
I don't care. It is not my problem.You cannot look at a supply with no load on it, and declare it to be
ripple free. You are compiling errant data if you do.
Try again, Vlad.
It could be done better then that.
Good for you. Although very slow.
You don't know much about X-ray flux, or the generation thereof.We also made an xray supply that made 4kV at 1.5uA, and that had only
2mV of ripple at rated loading.
1.5uA is not much.
Linear OR switcher, under full rated load, there IS going to be
ripple voltages present. Period.
You don't have to preach that 2 + 2 = 4.
Why are you even in the fucking thread then, dipshit?I don't care. It is not my problem.
Yes, I do know that very well, since I do work on the audio andIt could be done better then that.
Not in the package constraints we had. We bettered the competitor's
product as well. They were unable to achieve the spec.
Do you even know what that ripple figure represents?
This is -117dB. No doubts it is a decent result, although it is not aThat's 0.000001333 % ripple.
I can't understand. Are you trying to scare a porcupine by showing him aYou won't be getting lower than that any time soon in the chassis we
did it in at 250 Watts loading.
I don't think you are aware of what is or is not "being done".
You're just spittin' out words to see where they splatter.
Dude, do you read the words which I didn't wrote?Linear OR switcher, under full rated load, there IS going to be
ripple voltages present. Period.
You don't have to preach that 2 + 2 = 4.
Aren't you the dolt that claimed that zero ripple supplies are easy
to make?
And this is not your problem.On Sat, 17 Feb 2007 01:22:51 GMT, Vladimir Vassilevsky
antispam_bogus@hotmail.com> Gave us:
I don't care. It is not my problem.
Why are you even in the fucking thread then, dipshit?
Sorry, dude. At one time I was working with the X-ray crystallograph.We also made an xray supply that made 4kV at 1.5uA, and that had only
2mV of ripple at rated loading.
1.5uA is not much.
You don't know much about X-ray flux, or the generation thereof.
For a power supply?This is -117dB. No doubts it is a decent result, although it is not a
world record by any means.
And you can fuck off.MassiveProng wrote:
On Sat, 17 Feb 2007 01:22:51 GMT, Vladimir Vassilevsky
antispam_bogus@hotmail.com> Gave us:
I don't care. It is not my problem.
Why are you even in the fucking thread then, dipshit?
And this is not your problem.
VLV
I got a pill for your ass, fuckhead.Please find a quote or go take your pills.
And THAT supply ALSO had a pretty low ripple figure, I'll guaranteeMassiveProng wrote:
We also made an xray supply that made 4kV at 1.5uA, and that had only
2mV of ripple at rated loading.
1.5uA is not much.
You don't know much about X-ray flux, or the generation thereof.
Sorry, dude. At one time I was working with the X-ray crystallograph.
The tube was typically operating at 40...50kV, draining the current
about 10..15mA. So here we go.
On Fri, 16 Feb 2007 18:17:02 GMT, "Michael A. Terrell"
mike.terrell@earthlink.net> Gave us:
John Larkin wrote:
Please post the schematic of a zero-ripple switcher.
John
Sorry, but that feature is only available on the 0 volt model.
Are they fooly regulated?
This sort of foolish language will sooner or later get you PLONKedVladimir Vassilevsky <antispam_bogus@hotmail.com> Gave us:
Please find a quote or go take your pills.
I got a pill for your ass, fuckhead.