Oh, the NSA reference is patently stupid. Eavesdropping a *private* conversation is completely different from taking snapshots of cars/license plates, which is *public* information.
I, as a private citizen, can use my dashcam to record whatever happens in front of my car while I'm driving on public roads, including your license plate. However, I do not have the right to intercept your phone conversation. Can you now see how the two situations are different?
The article is mildly entertaining (especially for the awk bits), but the ending is plain stupid, i.e. flat and inane beyond belief;-)
I don't think that a sane person would explain the apparent improvement of newish cars reliability by the increasing number of built-in programmable gadgets with their millions of code lines. If anything, there is an optimum beyond which the cars will start failing in new and spectacular ways...
Uninformed opinion. Mammals are at least as old as dinosaurs and some findings indicate that they're even older! Thank $DEITY for the yucatan meteorite!
... because they don't have access to the advanced process technology that Intel does
That's a wrong way to put it. It's their own process, they paid for it, that's why they have access to it.
Intel's process is at least two generations ahead of everybody else because they understood long time ago that technology alone can crush the competition and decided to pour an insane amount of money into creating the said forefront technology.
What did AMD do? Become a fabless chip maker, at the mercy of the likes of TSMC or GF...
unfortunately, the Contour has very, very crappy low-light performance. Oh, and it does not work when charging, which means that you have to rely on its battery. Not a dashcam by any means.
*You* are either completely off or are talking about something totally different; the subject is VR for CPUs.
In a buck converter, the inductor's value is computed from the desired current ripple, which usually is a fraction of the TDC value. Although a 100nH inductor is a little extreme for 300kHz switching when vout is about 1V, its certainly doable; you'll get high inductor ripple, crappy efficiency but also fast transient response and such inductor is cheap.
The 100uH inductor at 300kHz is appropriate for a high-voltage converter, with an output voltage of e.g. 400V and requiring very small ripple.
Yes they do. Peak efficiency is usually above 90% and these days it depends mostly on the quality of the power switches and inductors, and the switch drivers strength.
There have been computer systems (especially notebooks) that did a double conversion (Vbatt to 5V, then 5V to whatever voltage was needed, CPU, memory etc), but it did not caught on.
There is also the "hidden" double conversion scheme in which the final VRs are powered from the battery, while the charger acts as a first VR,converting the adapter voltage to the battery voltage. Systems with this type of power tree are becoming more popular.
I would not be surprised to see efficiency in the 95+% range even coming from 12V down to 0.9V or whatever voltage this thing runs at, so you'll be throwing an extra 6W or so into a 120W package. Not bad.
Bollocks! Since the internal VR uses the same process as the CPU itself, it can't sustain high input voltages, therefore a one-stage 12V to 0.9V conversion is just a pipe dream.
The longer pdf presentation actually shows the motherboard-level 12V to 2.2V VR, which would be still rated for the full power (85W plus margin). OTOH, it's quite impressive that the 22nm process has support for 2.2V CMOS.
As others mentioned already, Intel is just trying to solve the power distribution issue, not eliminating the main down-conversion stage, which will *always* be external.
As a CPU VR designer myself, I'm very interested in seeing how this concept will play out. Beside the issues of more peak power dissipation on the CPU die and increased EMI, there is a long-term reliability issue involved, especially on the power stage; switching inductive loads creates ringing, which will degrade in time (through HCI) the switching transistors.
What a steamy pile of BS! Virtually all of the increase in yield in the past hundred years or so have been created by mechanization and synthetic fertilizers. Some GM crops have marginally better yields, but most genetic material inserted there was for pesticide-related benefits (roundup) or desirable features of the harvest itself, not for yield.
Monsanto must be really desperate for a better image if it targets/. with such pitiful shills.
I guess you flunked your chemistry class, that's why you're so bitter (and stupid). There is no acid produced in this reaction, you basically have Al interacting with NaOH.
Referring to this minor exothermic reaction as "fucking dangerous bombs" just shows your complete lack of perspective about life in general. Did you know that any car dealership has "bombs" on their lot (these make a loud BANG! when explode and clearly have the ability to kill and maim people)?
The concept is rather easy. After a negotiation preamble (checking that both ends support the silly-named USB), the power port will change to a higher voltage (20V as spec'ed) so that the current stays reasonably low. For the full 100W though, the sorry cable will have to pass 5A, which is not easy.
The problem is that all the things that must be done to keep the appearance of an USB-port compatibility are expensive to implement, making the whole concept unattractive.
Amen to that. The only downside to that is that you either get a powerful hood to remove all the smoke or you remove the batteries from the smoke alarms...
Read the US patents of the past three decades. Most of the names that appear are those of Indians and Chinese
Pure Horse Manure. Very few electrical-design related patents are granted to all-Chinese (and virtually none to Indian-sounding names). Today, yesterday, last year, ten years ago etc.
Top-notch Electrical Engineering requires a certain kind of mindset incompatible with the fast-n-loose approach of certain Asian nations. You would find much more Software people coming from these areas than EEs.
Fact is, good EE skills continue to provide job security in US and partially in Europe. Freshmen have a double handicap to overcome: lack of experience and lower-quality training. The biggest threat to us is the insane race to the bottom..
Ahem, do you know how the multi-core GPU/whatever is made? All of the blocks sit nicely on the same die (except some MCM/stacked fancy stuff).
The article talks about "printing" (i.e. placing) small dies onto a holding substrate, similar to present-day PCBs. This has obvious penalties regarding footprint, communication speed, manufacturability and cost of both "tiny chiplet" production (where large amounts of wafer area will be wasted on scribelines) and assembly/testing.
of the weed they're smoking here at PARC in Palo Alto must be really good. It allows them to dream wide-open-eyed, glossing over showstoppers such as reliability and poor cost structure.
What next? Tiny chiplet sections assembled to create tiny chiplets, then the ultimate goal of assembling components one atom at a time?
Hmmm, the discussion was about manual transmission, where you can do coasting; I'm pretty sure no one with an automatic transmission would switch between D and N while the car is moving.
In which way am I losing the vehicle control when coasting? It's not like my left foot and right hand get suddenly incapacitated so that I can't shift into gear if needed...
I can understand the argument if driving on wet/icy road conditions (when I do engine-brake), but otherwise?
Isn't this a dupe? Exactly the same thing was reported on/. a couple of years ago (just before Toyota's sudden-acceleration debacle), involving again a Frenchman driving a Renault.
it depends on what a modern car means. My 98 and 2000 civics do drink more gas if I'm engine-braking than if I'm idling and apply the brakes. Way more (like 3-4 mpg penalty for a mixture of city/hwy driving). Are these modern cars? Maybe, likely, but the generic claim that it's better for your mileage to engine-brake as opposed to coasting is BS.
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Oh, the NSA reference is patently stupid. Eavesdropping a *private* conversation is completely different from taking snapshots of cars/license plates, which is *public* information.
I, as a private citizen, can use my dashcam to record whatever happens in front of my car while I'm driving on public roads, including your license plate. However, I do not have the right to intercept your phone conversation. Can you now see how the two situations are different?
The article is mildly entertaining (especially for the awk bits), but the ending is plain stupid, i.e. flat and inane beyond belief ;-)
I don't think that a sane person would explain the apparent improvement of newish cars reliability by the increasing number of built-in programmable gadgets with their millions of code lines. If anything, there is an optimum beyond which the cars will start failing in new and spectacular ways...
Uninformed opinion. Mammals are at least as old as dinosaurs and some findings indicate that they're even older! Thank $DEITY for the yucatan meteorite!
... because they don't have access to the advanced process technology that Intel does
That's a wrong way to put it. It's their own process, they paid for it, that's why they have access to it.
Intel's process is at least two generations ahead of everybody else because they understood long time ago that technology alone can crush the competition and decided to pour an insane amount of money into creating the said forefront technology.
What did AMD do? Become a fabless chip maker, at the mercy of the likes of TSMC or GF...
unfortunately, the Contour has very, very crappy low-light performance. Oh, and it does not work when charging, which means that you have to rely on its battery. Not a dashcam by any means.
At a BMI of 15.6, you're definitely NOT the epitome of a healthy human. Maybe you meant 128kg instead?
*You* are either completely off or are talking about something totally different; the subject is VR for CPUs.
In a buck converter, the inductor's value is computed from the desired current ripple, which usually is a fraction of the TDC value. Although a 100nH inductor is a little extreme for 300kHz switching when vout is about 1V, its certainly doable; you'll get high inductor ripple, crappy efficiency but also fast transient response and such inductor is cheap.
The 100uH inductor at 300kHz is appropriate for a high-voltage converter, with an output voltage of e.g. 400V and requiring very small ripple.
Yes they do. Peak efficiency is usually above 90% and these days it depends mostly on the quality of the power switches and inductors, and the switch drivers strength.
There have been computer systems (especially notebooks) that did a double conversion (Vbatt to 5V, then 5V to whatever voltage was needed, CPU, memory etc), but it did not caught on.
There is also the "hidden" double conversion scheme in which the final VRs are powered from the battery, while the charger acts as a first VR,converting the adapter voltage to the battery voltage. Systems with this type of power tree are becoming more popular.
I would not be surprised to see efficiency in the 95+% range even coming from 12V down to 0.9V or whatever voltage this thing runs at, so you'll be throwing an extra 6W or so into a 120W package. Not bad.
Bollocks! Since the internal VR uses the same process as the CPU itself, it can't sustain high input voltages, therefore a one-stage 12V to 0.9V conversion is just a pipe dream.
The longer pdf presentation actually shows the motherboard-level 12V to 2.2V VR, which would be still rated for the full power (85W plus margin). OTOH, it's quite impressive that the 22nm process has support for 2.2V CMOS.
As others mentioned already, Intel is just trying to solve the power distribution issue, not eliminating the main down-conversion stage, which will *always* be external.
As a CPU VR designer myself, I'm very interested in seeing how this concept will play out. Beside the issues of more peak power dissipation on the CPU die and increased EMI, there is a long-term reliability issue involved, especially on the power stage; switching inductive loads creates ringing, which will degrade in time (through HCI) the switching transistors.
What a steamy pile of BS! Virtually all of the increase in yield in the past hundred years or so have been created by mechanization and synthetic fertilizers. Some GM crops have marginally better yields, but most genetic material inserted there was for pesticide-related benefits (roundup) or desirable features of the harvest itself, not for yield.
Monsanto must be really desperate for a better image if it targets /. with such pitiful shills.
I guess you flunked your chemistry class, that's why you're so bitter (and stupid). There is no acid produced in this reaction, you basically have Al interacting with NaOH.
Referring to this minor exothermic reaction as "fucking dangerous bombs" just shows your complete lack of perspective about life in general. Did you know that any car dealership has "bombs" on their lot (these make a loud BANG! when explode and clearly have the ability to kill and maim people)?
The concept is rather easy. After a negotiation preamble (checking that both ends support the silly-named USB), the power port will change to a higher voltage (20V as spec'ed) so that the current stays reasonably low. For the full 100W though, the sorry cable will have to pass 5A, which is not easy.
The problem is that all the things that must be done to keep the appearance of an USB-port compatibility are expensive to implement, making the whole concept unattractive.
Amen to that. The only downside to that is that you either get a powerful hood to remove all the smoke or you remove the batteries from the smoke alarms...
Hmmm, it's been done many times before, the oldest I recall seeing dates from the early 2000s: http://www.canuck-boffin.net/sonde/
It's still an amazing project and I wish I could pull off something like that - maybe next life...
Read the US patents of the past three decades.
Most of the names that appear are those of Indians and Chinese
Pure Horse Manure. Very few electrical-design related patents are granted to all-Chinese (and virtually none to Indian-sounding names). Today, yesterday, last year, ten years ago etc.
Top-notch Electrical Engineering requires a certain kind of mindset incompatible with the fast-n-loose approach of certain Asian nations. You would find much more Software people coming from these areas than EEs.
Fact is, good EE skills continue to provide job security in US and partially in Europe. Freshmen have a double handicap to overcome: lack of experience and lower-quality training. The biggest threat to us is the insane race to the bottom..
Ahem, do you know how the multi-core GPU/whatever is made? All of the blocks sit nicely on the same die (except some MCM/stacked fancy stuff).
The article talks about "printing" (i.e. placing) small dies onto a holding substrate, similar to present-day PCBs. This has obvious penalties regarding footprint, communication speed, manufacturability and cost of both "tiny chiplet" production (where large amounts of wafer area will be wasted on scribelines) and assembly/testing.
A weird solution in search of a problem.
of the weed they're smoking here at PARC in Palo Alto must be really good. It allows them to dream wide-open-eyed, glossing over showstoppers such as reliability and poor cost structure.
What next? Tiny chiplet sections assembled to create tiny chiplets, then the ultimate goal of assembling components one atom at a time?
it's actually quite useful for pointing out stars and dark sky features.
giving birth in space? they better stock up on baby formula too when planning the life support cargo...
Tsk, tsk, tsk!
http://slashdot.org/story/04/10/05/1539203/a-car-with-a-mind-of-its-own
Hmmm, the discussion was about manual transmission, where you can do coasting; I'm pretty sure no one with an automatic transmission would switch between D and N while the car is moving.
In which way am I losing the vehicle control when coasting? It's not like my left foot and right hand get suddenly incapacitated so that I can't shift into gear if needed...
I can understand the argument if driving on wet/icy road conditions (when I do engine-brake), but otherwise?
Isn't this a dupe? Exactly the same thing was reported on /. a couple of years ago (just before Toyota's sudden-acceleration debacle), involving again a Frenchman driving a Renault.
Guess that The Guardian is as reliable as ever...
it depends on what a modern car means. My 98 and 2000 civics do drink more gas if I'm engine-braking than if I'm idling and apply the brakes. Way more (like 3-4 mpg penalty for a mixture of city/hwy driving). Are these modern cars? Maybe, likely, but the generic claim that it's better for your mileage to engine-brake as opposed to coasting is BS.
The only thing I have against EV's is the charging time and battery issues.