new 30MHz to 300MHz switcher - worlds smallest laptop adapter

use a higher frequency.

_ _ _ ......... / \_/ \_/ \ --||--:~ +:-- _ _ : -|>|- : \_/ \_/ \_/ --||--:~ -:-- :.......:

It's usually more practical to do it that way. there's rules about the size and type of capacitors that are allowed accross an isolation barrier.

Yes, it's the same for any other double-insulated appliance.

--
For a good time: install ntp 

--- news://freenews.netfront.net/ - complaints: news@netfront.net ---

A patent makes it even easier... People's Shining Switching Power Supply Factories 1 through 37 can start working on it as soon as they can get a copy of the patent! For an extra penny per unit, PSSPSF will even use the good fake UL marking, rather than the standard one they did in Microsoft Paint.

Matt Roberds

True, but you can sue. That's all a patent really boils down to-- the right to sue someone for copying your .

Trade secrets are better, if possible. But much hardware--esp. a topology, like this--is so easily reverse-engineered, that trade secrets are useless.

Cheers, James Arthur

This was promoted as having a size advantage but has no line isolation that would pass safety standards. One hint is that they never mentioned line isolation which would be an obvious problem. By the time they add line isolation this design won't be so very small, will it?

Dunno. Inserting a transformer after the switched-cap stage would do it. At many MHz it could be pretty small. Crudely suggested below, Fig. X.

======== FIG. 6 (from patent) ======== || . || (~1MHz) . (5-300MHz) . / . .-----------o o-----------. . | / | . | .----o o----+ . Vin | C1 | C2 | . Lbuck >---o

Realistically, the max easily obtainable is about 1pF/um^2 ...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
I love to cook with wine.     Sometimes I even put it in the food.

buck,

charged to the same voltage),

equalize the cap voltages,

do with external caps?

I would hope to shout. Dang, that would be massive caps on chip. Mebbe one of our IC design capable persons could enlighten us on the kind of area needed. These would have to be relatively good quality (for on chip) caps as well.

?-)

Let me know how that lawsuit against People's Shining Switching Power Supply Factories 1 through 37 works out. Step 1: Figure out whom to sue and which court to do it in... :)

Yeah, I understand why the money people like patents. To me it just seems like a road to spending a lot of money on activities that do not tend to make cool new things appear in the world, which seems like a moderately silly road to take.

Matt Roberds

JA > The picture showed a line-operated JA > "plug," which suggests they've JA > got galvanic isolation. They're taking PRE-ORDERS on their website.. This 65W laptop adapter is to be out in mid 2014. At CES 2014 in Las Vegas Jan 7-10 Venetian Level 1 Booth #74113 Anybody here going to CES? FINsix is supposedly based in Menlo Park, CA ASIC work is to be at: 27 Drydock Avenue, Boston, MA 02210 Venture capital backed.

(Impressive) Their other product: LED Driver (In Development) I just hope it's not another vaporware..

snipped-for-privacy@att.net wrote

You need to file patents to get VC funding.

The patents can be bogus (prior art, etc) - doesn't matter. Most patents are worthless. VCs can't tell the difference.

On a sunny day (Mon, 30 Dec 2013 00:31:05 -0800 (PST)) it happened Greegor wrote in :

So it seems to be resonant after all...:

:-) And no efficiencey numbers given, must be really bad. Only advantage small size? Only 110 V? How about RF interference at VHF? with DTV, cellphones? Normal switchers are already bad enough, I have one radiating 250 kHz.

And to say, here:

" Highest Performance Blinking, instability, noise and LED lamps that just refuse to turn on are history."

Well that is almost like saying: "Our cars start every time, unlike noisy other ones that just refuse to start..."

Gimme a break.

:-)

The money people aren't wrong about it. If you want to be able to keep making cool new things appear, you have to make a profit at it sometime or other, and preventing people from eating your lunch is a good start.

And you aren't necessarily entirely on your own. At least in the US, it's possible to sue before the International Trade Commission, which has the power to direct Customs to prevent the importing of infringing goods. (See e.g.

.)

ITC cases have been described as "like a district court on ." They go less than a year from start to finish, are a whole lot of work, and AFAICT almost always wind up going to trial. I had to turn one down in the fall, because I had too much other stuff going on, but it would have been interesting in some ways. It was some guy living in a flat over a shop, suing half of the Japanese and Korean electronics industries, apparently with the benefit of some outside money.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs 
Principal Consultant 
ElectroOptical Innovations LLC 
Optics, Electro-optics, Photonics, Analog Electronics 

160 North State Road #203 
Briarcliff Manor NY 10510 

hobbs at electrooptical dot net 
http://electrooptical.net

I read a lot of crappy patents, it's true. And if a worthless patent is just one that doesn't repay what you spend on it, I agree. But there's usually some non-obvious wrinkle in there somewhere, and it doesn't have to be very big to make the patent valid, if not necessarily lucrative.

Patents also have value apart from their actual content. These days it costs real money to get a patent thrown out, even by the USPTO. (Reexamination used to be more of an administrative matter, but now it's more like litigation.)

There's a strong presumption in law that an issued patent is valid, so challenging it is an uphill argument. 'Tisn't at all impossible, but just showing up with what is apparently prior art doesn't always do it, not by a long shot.

Cheers

Phil Hobbs

--
Dr Philip C D Hobbs 
Principal Consultant 
ElectroOptical Innovations LLC 
Optics, Electro-optics, Photonics, Analog Electronics 

160 North State Road #203 
Briarcliff Manor NY 10510 

hobbs at electrooptical dot net 
http://electrooptical.net

At 57V? Isolated? Realistically? ;-)

57V is right on the edge of processes I'm familiar with, but 1pF/um^2 is a good number. And there are other passivation layers under experimentation that have both HV _and_ high pF/um^2. ...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
I love to cook with wine.     Sometimes I even put it in the food.

There's two schools of thought regarding patents with my energy extraction clients. One school believes that patents are better than nothing to protect a new gadget. The other school believes that patents only reveal the inner workings of a new gadget to pirates. What one believes seems to hinge on what happened to one's father.

In the former case, the father-in-law of one my clients invented a new gadget and did not patent it. The inner workings of the gadget got ripped off soon after it hit the oil field.

In the latter case, the father of one of my clients got ripped off by pirates who used the father's patent as a blueprint. So the son did not file a patent on a new invention. Instead the son housed his new gadget in a virtual vault made of steel.

Black box virtual vaults (that are not always painted black) are common in the oil field. One client suspected that a black box rented by him contained little more than a PC. But the "if we detect that you opened our black box you own it" clause in the rental contract along with a sky high sticker price kept the enigma intact.

RCA profited mightily from its guerrilla hold on radio patents. So "General" Sarnoff reckoned that RCA was entitled to own all of the newfangled television patents too. But an unknown named Philo Farnsworth invented television first.

That set up a "David versus Goliath" struggle, but instead of a sword the Goliath named RCA wielded a bunch of off-the-wall patents. Apparently the "General" thought that, "If you can't dazzle them with brilliance, baffle them with BS!" Unfortunately this time around Goliath used its legal might to win by dragging things out in court until Farnsworth's patents expired.

--
      __ 
   __/  \ 
  /  \__/ 
  \__/    Don Kuenz 
  /  \__ 
  \__/  \ 
     \__/

So you can really stack them to 170V at 1pF/um^2?

I have no idea what the concept requires, but I regularly work with as many as 5-layers of metalization on-chip. Perhaps they're using Silicon Nitride as the dielectric? And XFAB's XDM10 process has 350V devices. ...Jim Thompson

--
| James E.Thompson                                 |    mens     | 
| Analog Innovations                               |     et      | 
| Analog/Mixed-Signal ASIC's and Discrete Systems  |    manus    | 
| San Tan Valley, AZ 85142   Skype: Contacts Only  |             | 
| Voice:(480)460-2350  Fax: Available upon request |  Brass Rat  | 
| E-mail Icon at http://www.analog-innovations.com |    1962     | 
              
I love to cook with wine.     Sometimes I even put it in the food.

The IRF has 1200V Gate drivers.IR22141 But I'm not sure that it can work at 300Mhz.