I've yet to see a compact fluorescent bulb that flickers at 60Hz. Modern bulbs run off of switching inverters with frequencies in the 20KHz region. The only ones I've seen that had 60Hz flicker were cheap shoplights.
Fortunately for us all, slander cannot occur if the allegation is indeed true. If you have sex with goats, I print a story about that in the newspaper, and I can prove that my allegation is true, there is no slander/libel/defamation here.
That is not a good idea. It would sort of work, but you would discharge your batteries at different rates. This is really bad for your battery pack and will kill it in no time.
Well, actually, the link points to a search page with one high-voltage linear regulator and two switching power supply controller chips (these aren't the all-in-one DC-DC converters, either). The linear regulator won't work due to efficiency issues and the fact that it's only rated for 150V and 120VAC would become 170VDC after rectification. A switching power supply can easily run off of AC (put in a bridge rectifier and a filter capacitor and you have DC). However, switching power supplies are complex and difficult to design or build.
I take it you know very little about switching power supplies. Just so you know, they are rather complex and require a solid background in control theory, electromagnetics, and electronics to design and build. The EMI issues are challenging, and it's not a simple matter of applying a fixed duty cycle (since the voltage is proportional to the load).
Please, if you don't know anything, shut up. Converting from DC to AC is just as efficient as converting from DC to DC. Unless your solar cells happen to put out the exact voltage your device requires (they don't), you still need some kind of switching power supply. Whether it takes in or puts out DC or AC is almost completely irrelevant.
You are smoking something. A linear regulator that converts 110V to 12V would be about 5% efficient. That means that it will run about as hot as a P4 when supplying any real load. Switching power supplies can get pretty small, but they are difficult projects even for an experienced electrical engineer.
You don't want to drop more voltage than you have to across the regulator. If you have 2 amps at 12V coming in, and 2 amps at 2V going out, you are losing 10 * 2 = 20W on that regulator. That's one HOT regulator. That will require a big heatsink and fan -- not to mention it's really inefficient.
The only reason a power supply might fail is if it is built using cheap, shoddy, or underrated components. A decently made power supply will work for decades without as much as a hiccup.
You don't need a winding for every voltage. One winding with multiple taps should work just fine. As far as current draw: a circuit breaker or fuse on the primary will do the job.
He was as much an inventor as Bill Gates is a programmer. Above all, he was a businessman. Most of "his" inventions were actually created by the people working for him.
What are you smoking? The current solar cars can go well over 80 miles per hour. It's done through weight reduction and increases in efficiency. I think at those speeds, it is definitely an interesting race.
It's not very useful as an everyday car. However, it's a fine example of engineering at its best. That's exactly what, mechanical and electrical engineers are trained to do. A Formula 1 car is not practical for everyday driving, either. But it is an example of advanced engineering. I think you do not exactly understand what engineering is all about.
The broadcast flag does not interfere with timeshifting AFAIK. It DOES interfere with making digital copies. If you don't need HDTV, you can still use the analog signal that comes out of the HDTV receiver box. The only thing it prohibits you from doing is making an unencrypted bit-by-bit copy.
You know why this will not work? Because nobody gives a flying fuck about the broadcast flag. Seriously, the last time I've taped a show off the air was, like, 10 years ago.
Well, no shit. Blizzard is a famous developer. They have never had a game that flopped. They have a reputation for high-quality games, so people buy them.
A publisher like EA that relies largely on shovelware cannot afford to miss the holiday season, crap game or not. Even the crappiest game with a famous license will sell well come holiday season, since people give them as gifts.
Stop being such a group of crybaby whiners. Constitutional right? Last I checked, the broadcast flag stuff still lets you videotape a low-res version. And there is absolutely nothing in the constitution that says "thou shalt have a right to record copyrighted HDTV programs in their full high-definition glory". If you want high definition recordings, buy the DVD. Movies cost money to make, you know, and TV resolution is good enough for "time shifting" (or whatever other euphemism people come up with for "taping broadcast TV").
Slashdot Mirror
I've yet to see a compact fluorescent bulb that flickers at 60Hz. Modern bulbs run off of switching inverters with frequencies in the 20KHz region. The only ones I've seen that had 60Hz flicker were cheap shoplights.
Fortunately for us all, slander cannot occur if the allegation is indeed true. If you have sex with goats, I print a story about that in the newspaper, and I can prove that my allegation is true, there is no slander/libel/defamation here.
That is not a good idea. It would sort of work, but you would discharge your batteries at different rates. This is really bad for your battery pack and will kill it in no time.
Well, actually, the link points to a search page with one high-voltage linear regulator and two switching power supply controller chips (these aren't the all-in-one DC-DC converters, either). The linear regulator won't work due to efficiency issues and the fact that it's only rated for 150V and 120VAC would become 170VDC after rectification. A switching power supply can easily run off of AC (put in a bridge rectifier and a filter capacitor and you have DC). However, switching power supplies are complex and difficult to design or build.
I take it you know very little about switching power supplies. Just so you know, they are rather complex and require a solid background in control theory, electromagnetics, and electronics to design and build. The EMI issues are challenging, and it's not a simple matter of applying a fixed duty cycle (since the voltage is proportional to the load).
Please, if you don't know anything, shut up. Converting from DC to AC is just as efficient as converting from DC to DC. Unless your solar cells happen to put out the exact voltage your device requires (they don't), you still need some kind of switching power supply. Whether it takes in or puts out DC or AC is almost completely irrelevant.
You are smoking something. A linear regulator that converts 110V to 12V would be about 5% efficient. That means that it will run about as hot as a P4 when supplying any real load. Switching power supplies can get pretty small, but they are difficult projects even for an experienced electrical engineer.
Well, yes, except with multiple outputs and more power.
You don't want to drop more voltage than you have to across the regulator. If you have 2 amps at 12V coming in, and 2 amps at 2V going out, you are losing 10 * 2 = 20W on that regulator. That's one HOT regulator. That will require a big heatsink and fan -- not to mention it's really inefficient.
The only reason a power supply might fail is if it is built using cheap, shoddy, or underrated components. A decently made power supply will work for decades without as much as a hiccup.
You don't need a winding for every voltage. One winding with multiple taps should work just fine. As far as current draw: a circuit breaker or fuse on the primary will do the job.
There is absolutely no reason a power supply has to be large or needs a fan. It's possible to make one the size of a notebook adapter.
He was as much an inventor as Bill Gates is a programmer. Above all, he was a businessman. Most of "his" inventions were actually created by the people working for him.
My god you are a fucktard. So, I suppose you consider any race which occurs at less than 200mph boring. How about horse racing? Or the Olympics?
What are you smoking? The current solar cars can go well over 80 miles per hour. It's done through weight reduction and increases in efficiency. I think at those speeds, it is definitely an interesting race.
It's not very useful as an everyday car. However, it's a fine example of engineering at its best. That's exactly what, mechanical and electrical engineers are trained to do. A Formula 1 car is not practical for everyday driving, either. But it is an example of advanced engineering. I think you do not exactly understand what engineering is all about.
Dude, it's an AUTOMATED system. How do you figure out who borrowed it last? Who is going to verify the person's ID? This is just asking for abuse.
When a new edition comes out, they stop printing the other one. So they have to change editions.
The broadcast flag does not interfere with timeshifting AFAIK. It DOES interfere with making digital copies. If you don't need HDTV, you can still use the analog signal that comes out of the HDTV receiver box. The only thing it prohibits you from doing is making an unencrypted bit-by-bit copy.
There are quite a few printers with internal batteries. I have no idea what they are used for, but I've seen them in more than one printer.
You know why this will not work? Because nobody gives a flying fuck about the broadcast flag. Seriously, the last time I've taped a show off the air was, like, 10 years ago.
I wouldn't worry so much about it. By the time your HDTV card becomes obsolete, the protection will have been cracked many times over.
Well, no shit. Blizzard is a famous developer. They have never had a game that flopped. They have a reputation for high-quality games, so people buy them.
A publisher like EA that relies largely on shovelware cannot afford to miss the holiday season, crap game or not. Even the crappiest game with a famous license will sell well come holiday season, since people give them as gifts.
Duke Nuken Forever will fly off the shelves, if/when it ever gets released.
Yeah, just like Daikatana is flying off the shelves right now.
Stop being such a group of crybaby whiners. Constitutional right? Last I checked, the broadcast flag stuff still lets you videotape a low-res version. And there is absolutely nothing in the constitution that says "thou shalt have a right to record copyrighted HDTV programs in their full high-definition glory". If you want high definition recordings, buy the DVD. Movies cost money to make, you know, and TV resolution is good enough for "time shifting" (or whatever other euphemism people come up with for "taping broadcast TV").