Driver to drive?

Michael Terrell <terrell.michael.a@gmail.com> wrote in news:93ef4b68-
4c26-4baf-b50b-b8cd32bbae35@googlegroups.com:

> There is no oxygen on your planet.

I am from Tralfamador. I live in a bubble.

 

[Piotr Wyderski]

Piglet wro

The advantage is at low power. I built a 6 stage capacitive divider 48V
to 5V at max 10 microamperes input (on-hook POTS 48V). Microamp inductor
based buck converters do not appear to be easy.

If I wanted 500V->2V step-down at 2uA and reasonable efficiency (say,
50+%), how would you approach that requirements? The Oxford bell?

I am thinking about a ~5uW supercap replacement for backup purposes,
which can't dry out -- a 10uF polypropylene cap at 1kV is equivalent to
10F@1V in 1/2*C*V^2 terms. According to the specs, supercaps are
expected to last some mediocre thousands of hours, e.g. 4kHr is just 166
days at the max ratings.

Why there are no glass-embedded supercaps, or 'lytics in general,
looking like vacuum tubes? What did they use in Voyager?

Best regards, Piotr

 

[whit3rd]

On Tuesday, January 7, 2020 at 8:30:44 AM UTC-8, jla...@highlandsniptechnology.com wrote:

Hybrids make a little sense for urban stop-and-go driving that
recovers some braking energy, for people who count every penny. But
not enough sense to make it interesting to me. Hybrids aren't
economical in San Francisco.

Driving and parking aren't practical in San Francisco; hybrid
bus transport, though is very practical and economical.

 

[Piotr Wyderski]

Klaus Kragelund wrote:

Don't buy from Power Integrations. They have dubious sales techniquies and the products from OnSemi and Diodes are better

Use NCP10670 for example

Or UCC28701, I use it in a HV PSU together with a 1.7kV SiC MOSFET.

Best regards, Piotr

 

[Piotr Wyderski]

bitrex wrote:

If the OP needs a really low-cost solution for 150/200 -> 12 the
self-oscillating/hysteric flyback is a classic and a negative aux
voltage is easily done by adding a winding. Don't even really need a
controller at all for well-behaved loads

But they are super-hard to design properly, a lot of prototyping is
required. An UCC7870x controller will work reliably in the first
iteration and requires no optocoupler. A very robust little thingy.

Best regards, Piotr

 

I'll give my take on it...

I'm thinking of something that might be incomputable.

Maybe square of 2 or the halting problem.

At least with square of 2 it can be computed to a certain precision.

Maybe emulators won't bother to compute up to a certain precision because maybe it would then become infeasible/too slow for practical usage

Bye,
Skybuck.

 

[Bill Sloman]

On Wednesday, January 8, 2020 at 1:03:32 AM UTC+11, Cursitor Doom wrote:

On Tue, 7 Jan 2020 05:37:52 -0800 (PST), Bill Sloman
bill.sloman@ieee.org> wrote:

You say what you feel like saying, and anybody who doesn't like it is "excessively sensitive".

This is Usenet, mate. It's not for pussies. You've been here more than
20 years, same as I have, so you're clearly no pussy. Don't try to
pretend to be as you're fooling no one.

You miss the point, as usual. You imagine that the absence of moderation gives you a license to give your imagination free reign, and accuse me of being a Marxist without a shred of evidence to support that claim (which I mentioned in the post you are responding to and you snipped from your reply, without marking the snip).

The problem with venting opinions about subject you don't understand is that you can be quite a bit more offensive than you imagine.

That's USENET! You have the same right to be every bit as offensive in
return - and you frequently are.

I do stick to facts and evidence, and have no trouble nailing you within those limitations.

On the other hand, you could be not only a psychopath but also complacent psychopath. But pig-ignorant in any event.

There you go again: ending with another barbed remark. Am I supposed
to take these constant insults with good grace and not answer back? I
think we both know the answer to that, Bill.

You are welcome to answer, but not to lie about what's going on - and unmarked snips are lies by omission.

> "The BEST Deal is NO DEAL"

Cursitor Doom does like posting mendacious nonsense. He may not get any of his income in UK pounds, but I'm well aware that my UK pension stream would shrink dramatically if Boris Johnson was silly enough to go for a "no deal" Brexit.

--
Bill Sloman, Sydney

 

[Bill Sloman]

On Wednesday, January 8, 2020 at 9:01:56 AM UTC+11, Clifford Heath wrote:

On 8/1/20 12:37 am, Bill Sloman wrote:
On Tuesday, January 7, 2020 at 8:27:03 PM UTC+11, Cursitor Doom wrote:
On Mon, 6 Jan 2020 17:52:23 -0800 (PST), Bill Sloman
bill.sloman@ieee.org> wrote:

Of course you do. Psychopaths always find it hard to realise why other people find them obnoxious.

Well, I've had you down for a few things on this group, Bill, but I
never had you down for a snowflake. Dishing out all that supercilious
condescension and yet you can't take a little polite criticism in
return.

Cursitor Doom trying to look inoffensive, and failing. He may have a very strange idea of what might "constitutes polite criticism" but he has claimed that I'm a Marxist, by which he might merely have meant that I'm not his kind of right-wing nitwit, since he clearly doesn't understand the rest of the implications.

Fancy having to tip-toe around the senstitivities you've never
shown before. Hmmm. Nope. I don't buy it.

You say what you feel like saying, and anybody who doesn't like it is "excessively sensitive".

The problem with venting opinions about subject you don't understand is that you can be quite a bit more offensive than you imagine.

On the other hand, you could be not only a psychopath but also complacent psychopath. But pig-ignorant in any event.


Bill, just shut up. You're embarrassing yourself and wasting everyone's
time. We saw you start it. Now we want to see if you can stop it.

There's no way I can persuade Cursitor Doom to see sense, but I can show up his character defects. You may not like it, but - as Cursitor Doom has mentioned, this is the Usernet, and a certain amount of intemperate irritation is traditional.

As for embarrassing myself? I've got own standards, and I'm not greatly interested in what you might think - it's not as if your posting history is exemplary.

--
Bill Sloman, Sydney

 

[Michael Terrell]

On Tuesday, January 7, 2020 at 4:29:26 PM UTC-5, Rick C wrote:

On Tuesday, January 7, 2020 at 4:15:09 PM UTC-5, Michael Terrell wrote:
On Tuesday, January 7, 2020 at 4:04:44 PM UTC-5, Rick C wrote:
On Tuesday, January 7, 2020 at 1:32:09 PM UTC-5, Michael Terrell wrote:

The highest point in Florida is 345 ft which is higher than many places in New England and the Great Lakes areas.

Next time I'm in Florida I must climb to the top of Mt Florida! I'll bring some oxygen bottles just in case.

Why bother? There is no oxygen on your planet.

Make sure that you visit Sugarloaf Mountain.

I've been there. 1,283 ft high it is part of a ridge between Clarksburg and Frederick, MD. But we have real mountains in MD too.

Wrong, as usual. I'm talking about the Sugarloaf Mountain, in Florida.

 

[Rick C]

On Tuesday, January 7, 2020 at 6:30:44 PM UTC-5, Michael Terrell wrote:

On Tuesday, January 7, 2020 at 4:29:26 PM UTC-5, Rick C wrote:
On Tuesday, January 7, 2020 at 4:15:09 PM UTC-5, Michael Terrell wrote:
On Tuesday, January 7, 2020 at 4:04:44 PM UTC-5, Rick C wrote:
On Tuesday, January 7, 2020 at 1:32:09 PM UTC-5, Michael Terrell wrote:

The highest point in Florida is 345 ft which is higher than many places in New England and the Great Lakes areas.

Next time I'm in Florida I must climb to the top of Mt Florida! I'll bring some oxygen bottles just in case.

Why bother? There is no oxygen on your planet.

Make sure that you visit Sugarloaf Mountain.

I've been there. 1,283 ft high it is part of a ridge between Clarksburg and Frederick, MD. But we have real mountains in MD too.


Wrong, as usual. I'm talking about the Sugarloaf Mountain, in Florida.

So it looks like you are the one who is wrong. I'm not sure you can even call that a mountain.

https://www.youtube.com/watch?v=bvDHZZjAiq0

Sugarloaf, FL isn't really a mountain. That's just where the pole is under the ground that's holding the state out of the water.

https://goo.gl/maps/2kn34KEQNFEcchgV8

Yup, there it is. You can actually see it from the road. lol

--

Rick C.

-+--+ Get 1,000 miles of free Supercharging
-+--+ Tesla referral code - https://ts.la/richard11209

 

Nothing better to do at Nissan; so, coffeeing, interneting and trolling.

*** Nissan Leaf Hopping/Blowing ***

Well, this is the emergence we have been discussing.
I am just trying it out to remind myself not to do it
if my life (or schedule) or somebody's life (or schedule)
depends on it. But i have have short memories.

After driving/charging 200 miles in 2 days with the Leaf,
i am stuck in Merced, CA outside the Nissan dealer. Nissan,
Ford, Toyota and Honda dealers are all closed and ICEing their
chargers. It's freezing cold outside, but my laptop is warming.

I have a couple of miles left to move it in the morning,
but not enough to try out other chargers like the college and
county office. I would not even attempt to do so, since they
are running perhaps custom apps for their chargers. Can't believe
how many ways to skin the cat and switching electricity.

So, i am running the laptop (warmer) on the 2kW aux battery.
Should last at least until the morning.

PS: don't drive EV for long distance, even Tesla could run out.

--------------------------

Well, almost back to BA, 300 miles in 3 days Leaf Hopping, including
5 Nissaning, 4 chargepointing, 3 freebieing, 2 haggling and 1 evgoing.
(haggling: brother, can you spare some electricity?)

Cost around $10 including a whopping $6 Evgo rip-off to go 30 miles.

Finally, some electronics discussion in this forum.
Before next trip, need to increase buffer batteries to 10kWh
(half lead acid and half lithium) and extracting/limiting circuits.
The extracting circuit drains the lithium half down to 8V,
while keeping the lead acid at 12V. The limiting circuit
current limit while increasing the voltage from 8V to 12V.

Secretly, i might fire up the SRB motors for Leaf Blowing in the
middle of Edward's AFB (not Edward AFB). But i must publicly deny
about the heavy pollution of SRB fuel, not to mention driving
an unsafe vehicle.

 

[bitrex]

On 1/5/20 5:24 PM, John Doe wrote:

bitrex <user@example.net> wrote:

omnilobe@gmail.com wrote:
Robert Baer wrote:

Snow, Traffic Jams and Electric Cars - has anyone thought about
it? If all cars were electric ... and were caught up in a three
hour traffic jam? With dead batteries - then what?

The battery exchange is a way to avoid all those problems. Each
electric car has 4 batteries that are extracted at the fuel
depot. Delivery trucks and drones deliver fresh batteries.
Identification of batteries tracks wearing out status, and
debits. Only 1 batter is used at a time, so 3 are fresh until
exchanged at the gas station. cells.

The packs are built into the structure of the car, you can't "hot
swap" 'em, they weigh like 1500 lbs.

Bozo, you are so clueless. The poster is talking about a likely
alternative, not the status quo. What a moron...

The reason that alternative has never been done is because it's
unnecessary and a dumb idea.

 

[Rick C]

On Tuesday, January 7, 2020 at 7:49:02 PM UTC-5, bitrex wrote:

On 1/5/20 5:24 PM, John Doe wrote:
bitrex <user@example.net> wrote:

omnilobe@gmail.com wrote:
Robert Baer wrote:

Snow, Traffic Jams and Electric Cars - has anyone thought about
it? If all cars were electric ... and were caught up in a three
hour traffic jam? With dead batteries - then what?

The battery exchange is a way to avoid all those problems. Each
electric car has 4 batteries that are extracted at the fuel
depot. Delivery trucks and drones deliver fresh batteries.
Identification of batteries tracks wearing out status, and
debits. Only 1 batter is used at a time, so 3 are fresh until
exchanged at the gas station. cells.

The packs are built into the structure of the car, you can't "hot
swap" 'em, they weigh like 1500 lbs.

Bozo, you are so clueless. The poster is talking about a likely
alternative, not the status quo. What a moron...


The reason that alternative has never been done is because it's
unnecessary and a dumb idea.

It's not really a "dumb" idea. It's not practical for a couple of reasons. The first is that they haven't designed the batteries to be as easy as required for hot swapping. Tesla didn't design a new battery, they just used the one they had designed to be part of the car.

The other is there would need to be a new ownership model where the company owns all the batteries and the user pays for them along with the fuel. Otherwise you buy a new car and your battery gets swapped out in exchange with an unknown battery that may be 29% down from the new car range. So it's musical batteries and you don't get to keep the one your bought. Better if they own them and you get one with some guarantee of performance.

Neither of those issues make battery swapping inherently impractical or "dumb". One is just a matter of design and the other is a contractual issue.

--

Rick C.

-+-+- Get 1,000 miles of free Supercharging
-+-+- Tesla referral code - https://ts.la/richard11209

 

[bitrex]

On 1/7/20 8:26 PM, Rick C wrote:

On Tuesday, January 7, 2020 at 7:49:02 PM UTC-5, bitrex wrote:
On 1/5/20 5:24 PM, John Doe wrote:
bitrex <user@example.net> wrote:

omnilobe@gmail.com wrote:
Robert Baer wrote:

Snow, Traffic Jams and Electric Cars - has anyone thought about
it? If all cars were electric ... and were caught up in a three
hour traffic jam? With dead batteries - then what?

The battery exchange is a way to avoid all those problems. Each
electric car has 4 batteries that are extracted at the fuel
depot. Delivery trucks and drones deliver fresh batteries.
Identification of batteries tracks wearing out status, and
debits. Only 1 batter is used at a time, so 3 are fresh until
exchanged at the gas station. cells.

The packs are built into the structure of the car, you can't "hot
swap" 'em, they weigh like 1500 lbs.

Bozo, you are so clueless. The poster is talking about a likely
alternative, not the status quo. What a moron...


The reason that alternative has never been done is because it's
unnecessary and a dumb idea.

It's not really a "dumb" idea. It's not practical for a couple of reasons. The first is that they haven't designed the batteries to be as easy as required for hot swapping. Tesla didn't design a new battery, they just used the one they had designed to be part of the car.

The other is there would need to be a new ownership model where the company owns all the batteries and the user pays for them along with the fuel. Otherwise you buy a new car and your battery gets swapped out in exchange with an unknown battery that may be 29% down from the new car range. So it's musical batteries and you don't get to keep the one your bought. Better if they own them and you get one with some guarantee of performance.

Neither of those issues make battery swapping inherently impractical or "dumb". One is just a matter of design and the other is a contractual issue.

How would the batteries that weigh hundreds of kg be hot-swapped on the
regular, physically? I'm assuming not manual labor. Some fashion of
battery-swapping robot? Ugh, one more thing to go wrong. That thing is
going to be breaking down constantly.

Cables and plugs work good. Better is the enemy of good.

 

On Tuesday, January 7, 2020 at 5:39:31 PM UTC-8, bitrex wrote:

On 1/7/20 8:26 PM, Rick C wrote:
On Tuesday, January 7, 2020 at 7:49:02 PM UTC-5, bitrex wrote:
On 1/5/20 5:24 PM, John Doe wrote:
bitrex <user@example.net> wrote:

omnilobe@gmail.com wrote:
Robert Baer wrote:

Snow, Traffic Jams and Electric Cars - has anyone thought about
it? If all cars were electric ... and were caught up in a three
hour traffic jam? With dead batteries - then what?

The battery exchange is a way to avoid all those problems. Each
electric car has 4 batteries that are extracted at the fuel
depot. Delivery trucks and drones deliver fresh batteries.
Identification of batteries tracks wearing out status, and
debits. Only 1 batter is used at a time, so 3 are fresh until
exchanged at the gas station. cells.

The packs are built into the structure of the car, you can't "hot
swap" 'em, they weigh like 1500 lbs.

Bozo, you are so clueless. The poster is talking about a likely
alternative, not the status quo. What a moron...


The reason that alternative has never been done is because it's
unnecessary and a dumb idea.

It's not really a "dumb" idea. It's not practical for a couple of reasons. The first is that they haven't designed the batteries to be as easy as required for hot swapping. Tesla didn't design a new battery, they just used the one they had designed to be part of the car.

The other is there would need to be a new ownership model where the company owns all the batteries and the user pays for them along with the fuel. Otherwise you buy a new car and your battery gets swapped out in exchange with an unknown battery that may be 29% down from the new car range. So it's musical batteries and you don't get to keep the one your bought. Better if they own them and you get one with some guarantee of performance.

Neither of those issues make battery swapping inherently impractical or "dumb". One is just a matter of design and the other is a contractual issue.


How would the batteries that weigh hundreds of kg be hot-swapped on the
regular, physically? I'm assuming not manual labor. Some fashion of
battery-swapping robot? Ugh, one more thing to go wrong. That thing is
going to be breaking down constantly.

Cables and plugs work good. Better is the enemy of good.

In 22kg (50 pounds modules) It doesn't need to be in one piece.

 

[Cursitor Doom]

On Tue, 7 Jan 2020 15:23:10 -0800 (PST), Bill Sloman
<bill.sloman@ieee.org> wrote:

On Wednesday, January 8, 2020 at 1:03:32 AM UTC+11, Cursitor Doom wrote:

"The BEST Deal is NO DEAL"

Cursitor Doom does like posting mendacious nonsense. He may not get any of his income in UK pounds, but I'm well aware that my UK pension stream would shrink dramatically if Boris Johnson was silly enough to go for a "no deal" Brexit.

And finally we get to the nub of it: politics. All that other BS about
hurt feelings is just a smokescreen.

<*PLONK*>
--

"The BEST Deal is NO DEAL"

 

[Bill Sloman]

On Wednesday, January 8, 2020 at 12:52:03 PM UTC+11, Cursitor Doom wrote:

On Tue, 7 Jan 2020 15:23:10 -0800 (PST), Bill Sloman
bill.sloman@ieee.org> wrote:

On Wednesday, January 8, 2020 at 1:03:32 AM UTC+11, Cursitor Doom wrote:

"The BEST Deal is NO DEAL"

Cursitor Doom does like posting mendacious nonsense. He may not get any of his income in UK pounds, but I'm well aware that my UK pension stream would shrink dramatically if Boris Johnson was silly enough to go for a "no deal" Brexit.

And finally we get to the nub of it: politics. All that other BS about
hurt feelings is just a smokescreen.

*PLONK*

That's Cursitor Doom. He picks the politics he wants to feel offended about and snips everything else.

And he hasn't "hurt my feelings". He's offended my sense of propriety, which is an entirely rational reaction (not that he will have clue about the distinction).

I'm delighted that he has kill-filed me. His reactions to other people's post will continue to offend me (and anybody else who has any grasp of reality), but I can bitch about them without having to put up with his lame responses.

--
Bill Sloman, Sydney

 

[Rick C]

On Tuesday, January 7, 2020 at 8:39:31 PM UTC-5, bitrex wrote:

How would the batteries that weigh hundreds of kg be hot-swapped on the
regular, physically? I'm assuming not manual labor. Some fashion of
battery-swapping robot? Ugh, one more thing to go wrong. That thing is
going to be breaking down constantly.

Cables and plugs work good. Better is the enemy of good.

You really are a trip.

--

Rick C.

-+-++ Get 1,000 miles of free Supercharging
-+-++ Tesla referral code - https://ts.la/richard11209

 

skybuck2000@hotmail.com wrote in
news:fabcd5c8-3817-4a41-8a31-1bedba45f53b@googlegroups.com:

I'll give my take on it...

I'm thinking of something that might be incomputable.

Maybe square of 2 or the halting problem.

At least with square of 2 it can be computed to a certain
precision.

Maybe emulators won't bother to compute up to a certain precision
because maybe it would then become infeasible/too slow for
practical usage

Try NetHack. It was one of the first.
<https://www.nethack.org/>

That game... IF you play it... will keep you in suspense long
enough to keep you off Usenet, and then we will not have our
newsgroup invaded by your inane "looky what I am doing" posts.

 

bitrex <user@example.net> wrote in news:_F9RF.4$uE2.2@fx19.iad:

On 1/5/20 5:24 PM, John Doe wrote:
bitrex <user@example.net> wrote:

omnilobe@gmail.com wrote:
Robert Baer wrote:

Snow, Traffic Jams and Electric Cars - has anyone thought about
it? If all cars were electric ... and were caught up in a three
hour traffic jam? With dead batteries - then what?

The battery exchange is a way to avoid all those problems. Each
electric car has 4 batteries that are extracted at the fuel
depot. Delivery trucks and drones deliver fresh batteries.
Identification of batteries tracks wearing out status, and
debits. Only 1 batter is used at a time, so 3 are fresh until
exchanged at the gas station. cells.

The packs are built into the structure of the car, you can't "hot
swap" 'em, they weigh like 1500 lbs.

Bozo, you are so clueless. The poster is talking about a likely
alternative, not the status quo. What a moron...


The reason that alternative has never been done is because it's
unnecessary and a dumb idea.

Old cars got gallons per mile. When the next station might be too
far, one would carry extra fuel in tanks in the trunk.

That is where we are now. Car now get several tens of miles to the
gallon, and nobody (virtually) is carrying around extra fuel cans
except retarded jeep owners! Electrics have weak battery systems
compared to today's convenient gas fed cars. But that will not last
forever. Battery tech will advance as weight decreases.

So they WILL one day make modules where one changes out for fresh,
but the modules are man portable slide in units. Say a car needs
five per side or six...

It IS VERY doable even with the stinking heavy stuff we have now.
It would simply have to be agreed by worldwide consortium so the
modules would have standard(ized) form factors.