Search found 76 matches

by Smoke_Maker
Tue Aug 22, 2006 8:12 pm
Forum: General Discussion
Topic: electric car
Replies: 5
Views: 1736

He is talking about the "Seimens traction motor " which I'm pretty sure that is a 3 phase A/C motor, the controller needs to be matched to the motor, they are "tuned" to work together.

This guy can tell you more about the controller you need.
http://www.metricmind.com/
by Smoke_Maker
Tue Aug 22, 2006 7:51 pm
Forum: General Discussion
Topic: Lead Acid Batteries: When to charge?
Replies: 24
Views: 6094

Here is a link to more information than you ever wanted to know about charging batteries. Happy digging. http://www.uuhome.de/william.darden/carfaq9.htm The battery is full when you reach 2.45 volts per cell and the current stops dropping, and the battery is empty when the voltage drops to 1.75 volt...
by Smoke_Maker
Thu Aug 17, 2006 5:10 pm
Forum: General Discussion
Topic: Water as a fuel.... again.
Replies: 14
Views: 3383

That one almost broke my BS detector :lol:
by Smoke_Maker
Mon Aug 14, 2006 7:10 pm
Forum: General Discussion
Topic: Power holdup capacitor
Replies: 17
Views: 4269

Thank you everybody for your input, dyarker, haklesup, Chris and all the others. I'm going to go with the collective experience of this group and use the 7555 CMOS, I did some Google work and found a circuit very close to what I need, I will get some chips Wednesday for testing. Next question, what ...
by Smoke_Maker
Sat Aug 12, 2006 9:13 am
Forum: General Discussion
Topic: Power holdup capacitor
Replies: 17
Views: 4269

I like Google, I kept typing in time delay relay but it worked much better with time delay circuit. This was what I was thinking of, running right off the ignition switch. Simple, low part count, and nA leakage draw. I need something that is dam near bullet proof, now the question is which way to go...
by Smoke_Maker
Fri Aug 11, 2006 7:53 pm
Forum: General Discussion
Topic: Power holdup capacitor
Replies: 17
Views: 4269

I see what you mean about the CMOS and the 555, I'm new at this so bear with me. I got the data sheet for the 555 and it shows the low state current as 10mA, am I reading this right and is this what it will draw in the off state? :???: http://www.semiconductors.philips.com/acrobat_download/datasheet...
by Smoke_Maker
Thu Aug 10, 2006 9:31 pm
Forum: General Discussion
Topic: Power holdup capacitor
Replies: 17
Views: 4269

jollyrgr wrote
why not use a capacitor in an RC circuit to drive a CMOS analog switch/relay?
Tell me more about this circuit I'm not familiar with CMOS analog switch/relay, is it simple.
by Smoke_Maker
Thu Aug 10, 2006 9:23 pm
Forum: General Discussion
Topic: Power holdup capacitor
Replies: 17
Views: 4269

Thanks for the ideas, I have tried these http://www.chargeguard.com/what_is_charge.html Charge Guards, but they draw 18mA which is worse. The cars parasitic draw is 7.8mA without my stuff on it. A perfect solution would be uA or less and I would like to find something already on the market if possib...
by Smoke_Maker
Thu Aug 10, 2006 6:17 pm
Forum: General Discussion
Topic: Power holdup capacitor
Replies: 17
Views: 4269

Power holdup capacitor

Here's the set-up, I have a circuit in some vehicles that needs to be powered for about 10 minutes after the ignition is shut off in order to refuel at the gas pump, the unit draws 15mA. I had the unit connected to the vehicle battery oringally and powered all the time but this proved to be too much...
by Smoke_Maker
Thu Aug 10, 2006 5:21 pm
Forum: General Discussion
Topic: Electric Cars
Replies: 54
Views: 16931

"A watt is a watt is a watt" A lot of statements are dubious at best and I turn on my BS detector if the person will profit from the statement. The average automobile is less than 20% efficient (that was a statement but will I profit from it?) 80% of the energy go's up in heat and out the tail pipe....
by Smoke_Maker
Wed Aug 09, 2006 9:16 pm
Forum: General Discussion
Topic: Electric Cars
Replies: 54
Views: 16931

jwax, that go-cart sounds like fun, it's a good recipe for smoke :grin:

I have been waiting for affordable advanced batteries for 25 years now. :sad:
by Smoke_Maker
Wed Aug 09, 2006 9:08 pm
Forum: General Discussion
Topic: Electric Cars
Replies: 54
Views: 16931

Thank you for the welcome Dean, a good way to see if a conversion is a good fit for you is to keep track of your driving trips for a month or so and then check in the EV album for a vehicle that fits your driving needs, I like to copy what works for other people instead of doing all those back of th...
by Smoke_Maker
Tue Aug 08, 2006 7:33 pm
Forum: General Discussion
Topic: Electric Cars
Replies: 54
Views: 16931

I have had my Mazda for what? maybe 6 years now?, I built it as a drag car and then at before it got to the strip I decided to put it on the street and run it as a street legal car. Motor problems, Oh yeah! but it wasn't the motors fault, all the damage belongs to me. The ADC 9.1 inch motor is rated...
by Smoke_Maker
Mon Aug 07, 2006 7:33 pm
Forum: General Discussion
Topic: Electric Cars
Replies: 54
Views: 16931

*I* think the best way to think of a EV is as a "purpose built" vehicle. EV's aren't for everybody, but when I tracked my driving habits I found it to be a egg shaped oval (I'm a man of simple needs) I built my car to fit "my egg". My driving habits needed 40 miles round trip max, that's to 80% DOD ...
by Smoke_Maker
Sat Aug 05, 2006 8:58 am
Forum: General Discussion
Topic: Electric Cars
Replies: 54
Views: 16931

Thank you for the welcome, component information on my car and a few hundred other cars can be found at http://www.austinev.org/evalbum/179 as well as my web site. Our electric rates here in Las Vegas as well as across the country has changed so much and fast that I had to go look up the current rat...