Search found 2426 matches

by billvon
Jan 26 2020 4:51pm
Forum: General Discussion
Topic: What's with this censoring nonsense happening on the forum?
Replies: 81
Views: 4406

Re: What's with this censoring nonsense happening on the forum?

ElectricGod wrote:
Jan 26 2020 4:09pm
I'M SICK OF THE SHIT!!!!
Us too. Perhaps find a forum that is more willing to cater to your ego? You will be happier and we will be happier. Everyone wins.
by billvon
Jan 24 2020 11:18pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271121

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Lived in Oklahoma, USA for 13 yrs and remember the increase in earth quakes. The last several years it is not reported in the news anymore. They are linked to oil extraction. Not heating but shifting pressures in the North American Plate. Fluid is extracted at lower levels across the State then oil...
by billvon
Jan 22 2020 9:53pm
Forum: General Discussion
Topic: Delete facebook for the good of humanity!
Replies: 27
Views: 1850

Re: Delete facebook for the good of humanity!

What amazes me are the people who get busted on fb. I watch a lot of The First 48 on the television, the first place the detectives go look for acquaintances is fb. Then you see the criminal has uploaded pictures of lots of cash, and drugs and of course guns. Get full facial shots of the entire gan...
by billvon
Jan 22 2020 9:36pm
Forum: Alternative Energy
Topic: Using an old car alternator to generate electricity...
Replies: 34
Views: 33450

Re: Using an old car alternator to generate electricity...

JJBuddas wrote:
Jan 22 2020 9:45am
Dont know What’s the problem
The problem is that you are trying to build a perpetual motion machine and those don't work.
by billvon
Jan 21 2020 1:30pm
Forum: E-Bike Technical
Topic: Reasons for excessive FET temps?
Replies: 8
Views: 602

Re: Reasons for excessive FET temps?

HK12K wrote:
Jan 21 2020 1:17pm
Does anyone know how exactly the controller determines mosfet temp?
It's almost certainly a thermistor. They are cheap, small and simple. There are ways to use specialized FETs to measure internal die temperature, but then you are locked into a specific (and expensive) FET.
by billvon
Jan 21 2020 1:00pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271121

Re: Wind and Solar vs Coal, Gasoline, Nuclear

In the US in the 1960's, everyone knew that "our rockets always blow up" and we were wasting billions on a failed, futile attempt to put man in space. Until it worked. ahem... you mean until the churminz showed you how. Oh, even well after that. Von Braun got to the US in 1945; for the next 15 year...
by billvon
Jan 21 2020 12:38pm
Forum: Battery Technology
Topic: Surplus LiFePO4 packs 4KWH 24V 220AH.
Replies: 10
Views: 491

Re: Surplus LiFePO4 packs 4KWH 24V 220AH.

pullin-gs wrote:
Jan 10 2020 10:17am
Designed for powerwall applications......
8-cells: Each cell is 220ah and about 20lbs.
Sounds like the BYD packs. Where are you located?
by billvon
Jan 21 2020 11:16am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271121

Re: Wind and Solar vs Coal, Gasoline, Nuclear

It's all about getting government grants and billions in investor money to pay themselves to try and do something they probably secretly knew was never going to work from the beginning. That was true of solar-PV, the space program, the US road system, airplanes and the Internet, too. In the US in t...
by billvon
Jan 19 2020 7:40pm
Forum: Alternative Energy
Topic: graphene solar panel
Replies: 1
Views: 151

Re: graphene solar panel

the stories are a couple years old. anyone have experience with this technology? From the page: "Over three times more efficient than Silicon panels." So that would be 60% efficiency. The highest conversion measured, ever, was 46% for a concentrator quad-junction cell by Fraunhofer. So I vote "vapo...
by billvon
Jan 19 2020 5:58pm
Forum: General Discussion
Topic: What's with this censoring nonsense happening on the forum?
Replies: 81
Views: 4406

Re: What's with this censoring nonsense happening on the forum?

]Suggestion to moderators. Internet forum's are like children playing in a sand box. Might be best to just let the children play, argue, learn, and be children. That's fine; I am all for that. But you don't let children spraypaint cuss words on the front of your house, or break the windows, with th...
by billvon
Jan 17 2020 7:50pm
Forum: Battery Technology
Topic: Solid state battery question
Replies: 2
Views: 133

Re: Solid state battery question

They said that an advantage of solid state batteries is that they don’t require a separator because the solid electrolyte serves thank function. Separator makes sure the anode and cathode don't touch. If the electrolyte is solid it serves the same function. Layer of cathode, layer of electrolyte, l...
by billvon
Jan 17 2020 3:22pm
Forum: Polls & Surveys
Topic: Which hybrid electric car will be yours in the future?
Replies: 4
Views: 292

Re: Which hybrid electric car will be yours in the future?

This is based on some pretty old data. Leafs now have ranges of 150-225 miles, and Prius Primes have ranges of about 25 miles.
by billvon
Jan 17 2020 10:36am
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271121

Re: Wind and Solar vs Coal, Gasoline, Nuclear

ZeroEm wrote:
Jan 17 2020 7:34am
Now, every one knows the warmer Earth gets the more active the plates will be. More earth quakes and increased volcanic activity.
Nope. No known connection there.
by billvon
Jan 15 2020 10:22pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271121

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Broadcast media is RAW POWER, and humans are simply incapable of not abusing it and using it to exert their personal political will. The situation we live in now is that "broadcast media-power" is like "The Lord of The Rings power, and once it is finally destroyed by a coming IP-Streaming media onl...
by billvon
Jan 15 2020 7:00pm
Forum: Motor Technology
Topic: Low ESR Capacitors Suggestion
Replies: 5
Views: 425

Re: Low ESR Capacitors Suggestion

I'm in the middle of making some upgrades to my ebike controller and I'm having a hard time finding a low ESR capacitor that will fit my needs and was wondering if anyone had any suggestions. Let's back up. Why do you need a low ESR cap? EMI filtering? There are better ways of doing that. LF ripple...
by billvon
Jan 14 2020 6:14pm
Forum: E-Vehicles General Discussion
Topic: Wind and Solar vs Coal, Gasoline, Nuclear
Replies: 5500
Views: 271121

Re: Wind and Solar vs Coal, Gasoline, Nuclear

Here is some good news for you, San Antonio, TX city counsel decided to keep our coal power plants into the foreseeable future. They even bring it in from across the country and don't use any from Texas and it cost more than the natural gas we have here. Well, at least your electric rates will go up.
by billvon
Jan 11 2020 9:35pm
Forum: General Discussion
Topic: SUV Drives Off Costal Cliff - Please Tell Me It Isn't A Tesla X90D
Replies: 4
Views: 638

Re: SUV Drives Off Costal Cliff - Please Tell Me It Isn't A Tesla X90D

markz wrote:
Jan 11 2020 9:23pm
The video clip is probably faked then.
They did find a few car parts and pieces of clothing - although not the main wreck itself.
by billvon
Jan 11 2020 6:06pm
Forum: General Discussion
Topic: Relay for up to 100V DC?
Replies: 15
Views: 806

Re: Relay for up to 100V DC?

Damn... Any solution from eBay without going to digikey and ordering a single relay that will come without a pcb? If they are resistive loads, just use MOSFETs. They are cheap and easy to use. You can get a 120V, 60A MOSFET for about $1.50. You can drive them with TTL signals (0-5V) If you really w...
by billvon
Jan 11 2020 5:17pm
Forum: General Discussion
Topic: Relay for up to 100V DC?
Replies: 15
Views: 806

Re: Relay for up to 100V DC?

rg12 wrote:
Jan 11 2020 4:43pm
That go up to 30A but they are all rated 250V while if you look at the relay itself it says 250VAC/30VDC
Do you think I will fry it at 100V from a battery?
Yes. It will arc if you try to switch it under load.
by billvon
Jan 10 2020 6:39pm
Forum: Items for Sale - Used
Topic: Nissan Leaf Modules 58 aH
Replies: 17
Views: 718

Re: Nissan Leaf Modules 58 aH

john61ct wrote:
Jan 10 2020 6:34pm
Sure I could just have asked what their voltage is, same difference
7 modules so 14 cells (50V nom)
by billvon
Jan 10 2020 3:57pm
Forum: E-Vehicles General Discussion
Topic: battery is the motor?
Replies: 16
Views: 947

Re: battery is the motor?

A gasoline, diesel, or steam engine converts a fuel directly into a spinning shaft. The "fuel" is not consumed elsewhere. True for gasoline or diesel engines. A steam engine is an external-combustion engine where the fuel is consumed in a boiler, and then steam transfers the energy to the motor. Th...
by billvon
Jan 06 2020 11:43am
Forum: Alternative Energy
Topic: simple solar circuit
Replies: 1
Views: 275

Re: simple solar circuit

can someone tweak my given circuit or give me a better one. the smaller and simpler the better. Your problem is going to be that at .5 volts (what you get out of a single cell) you are going to be hard pressed to do any sort of a timer. Consider something like this: https://www.digikey.com/product-...
by billvon
Jan 06 2020 11:35am
Forum: EV Business World
Topic: Any one want to invest at battery development / research ??
Replies: 5
Views: 901

Re: Any one want to invest at battery development / research ??

That's a great idea, but your are LOSING money, and sending out a lot of cells to trash or no useful app for those tired cells. Not contributing to environment. Rich people buy $5K ebike and many batteries but regular people can go at reuse concept with great amazing cost saving, clapping hands and...
by billvon
Jan 05 2020 4:51pm
Forum: Motor Technology
Topic: Why more KV = more power, the Maximum Power Transfer Theorem
Replies: 51
Views: 2713

Re: Why more KV = more power, the Maximum Power Transfer Theorem

>> Assuming no gearing, lower kV is still useful when more torque at lowest possible rpm is required and top speed no issue at all, right? Would be greatly appreciated if this could be answered, I realize a bit prosaic for such high-level discussion Yes, it is useful. With caveats. To explain why l...
by billvon
Jan 04 2020 1:27pm
Forum: Motor Technology
Topic: Phaserunner and Motor question.
Replies: 4
Views: 332

Re: Phaserunner and Motor question.

R6bbie wrote:
Jan 04 2020 12:24pm
I have a 48v 1000w wheel and I believe the RPMs are 450. My battery is 52v
What would be a good guess on on the Kv?
1Kv = 1 RPM at 1 volt.

450 RPM at 52V= 8.6Kv, so try that.