All generators that are used for the kind of use being discussed spin a coil, even the inverter types. It's the rest of the generator where the differences lie. The conventional rely on the constant motor speed for the frequency and part of the voltage regulation. Those with an inverter take the generator output and in turn synthesize the AC waveform. One big thing that does is decouple the engine speed. Low output, the engine can run at much lower RPM, using less fuel and making less noise.
I would have thought that with the cost of electronics falling through the floor, there was no point in the complications of constant-speed engines anymore.
Probably,but computers use so little power it really matter. Even my
42" plasma TV only uses 125W (the older one is 500W). Some are addicted to coffee. ;-)
The cost of electronics that continues to drop off a cliff is where you can put ever increasing numbers of transistors on a small piece of silicon, ie Moore's Law. This inverter stuff needs some of that to control it, but it also needs the much larger power electronics, that hasn't shrunk, needs heat sinks, etc. You can't put 6KW through a wee little chip.
Neither party is what I'd call exactly trustworthy.
I have to think that many of the same guys who are posturing and profiling about reducing government were 100% behind Medicare Part D and the invasion of Iraq - which (obviously?) was a significant increase in the role of government in the sense of increased expenditure.
Which makes the whole situation more ironic. Have you noticed that our Muslim in Chief and his party tend to loudly campaign against the very things they actively promote?
One of the gentle readers on this list will likely remember who said this. But during the early days of the health cared deform debate (no, I didn't mean "reform") someone was parading around the uninsured people who were inconvenienced in this or that way. And someone said and I paraphrase "the more people the companies reject, the more money they can make".
Nothing like throwing old folks off the cliff to increase profits. I guess if the companies killed every person in the US, they would be totally wealthy?
. Christ> >> Would that be on the way home from throwing
The prices of all electronic devices are not in a free fall. The large price drops over time are typically in either new technology that is initially very expensive and then drops off as it gets into high volume production, an example being LCD panels. Or in the application of Moore's Law, where you can pack more transistors onto a given size piece of silicon. The last, most powerful force, clearly doesn't apply to power semiconductors for obvious reasons. And power electronics is a relatively mature field. Sure there are some cost reductions still occurring all but these components are still very expensive compared to say a microcontroller capable of running an auto dashboard display or an appliance. You can buy one of those for less than a $1. The cost of power electronics is many times that. Don't believe me, take a look at what a 6KW inverter costs. Then explain how you could put one of those, plus all the other extra stuff needed, like electronic throttle control, onto a $700 or $1000 conventional 6KW generator.
Irrelevant. Because one area is falling faster than another doesn't mean the bottom isn't dropping out of both. The fact is that it's getting cheaper to process silicon.
This guy did not wait. He checked out at 60. Sad, really, I'll be 68 in a couple of weeks and the past couple of years have been the best of my life and I'm hoping for many more.
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A warning, this is a website of a man that arranged for it to go live after his planned suicide. However, this is not someone who was depressed, despairing or suicidal in the normal sense. This is someone who planned his own death for fourteen months and left everything in complete order, right down to the place of his death and who would find him.
Here you are, the guy who thought all generators now used inverters, now telling us how all semiconductor components are in a free fall regardless of what they are used for.
That is just flat out wrong. It isn't getting cheaper, it's getting more expensive. As you go down in feature size, the cost of the fabs and the processing increases.. Everything from the filtration needed to maintain the clean room to the cost of the lithography eqpt. A new state of the art fab can cost $5bil. In the 90s, it was $1bil. What makes the cost of the component go down and/or the functionality/computing power, etc go up, is that as the feature size decreases, we can pack way more transistors on the same size piece of silicon, or alternatively put the same number of transistors on a smaller piece of silicon. So it costs more to process a wafer using 22nm process, but you get a CPU with 2x the transistors. And wafer size has grown over the years too, so you can get more die per wafer. That is of huge benefit if your building microprocessors, microcontrollers, memory, etc. where you need to pack millions of transistors onto a single die. But the big benefit of reducing the feature size doesn't apply to power semiconductors, like an SCR that has to handle
6KW of power. You can't reduce it in size like you can a memory chip or CPU. If it worked that way, a 6KW inverter would cost $10 today, It doesn't. But apparently you think it does.
Or how about one of the simplest examples of power electronics, the light dimmer? There is a market with worldwide competition and huge volume. A basic dimmer today is $15. That's about what it cost in the 80s. .It wasn't $1500, or $150. Allowing for inflation, yeah, it's come down. The design and components used today are the same. But it's not following Moore's Law, because an SCR can't. The major cost decline for those components was seen long ago and they are not in a "free fall".
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