i got some cool little Swiss mil-spec DC-DC modules about the size of a pack of cigarettes that do 18-72v in to +/- 12V@30w out on Ebay, and i decided to use a...
... always ... range ... Notice I said 2 motors that PROPEL the car. I agree with a small gas generator that only charges the batteries and I believe that is ...
This is pretty wild! Some guy composed a version of a song from Tchaikovsky's score, "Nutcracker Suite", titled "Dance of The Sugar Plum Fairy", exclusively ...
Hi Bob Yes it looks like the circuit is taking shape! he he, I think its a good little device to sell as well, if you can make it nice and small and is very...
Hi all I recently saw one of these bikes in passing and looked it up. The claimed specs by "A to B" mag seem too good to be true. Average speed nearly 20...
... I am sorry if I have hurt your feelings, but I have witnessed people getting hurt by taking technical advise from uninformed individuals. I don't know...
Hmm Checking about the LF398 looks like a likely candidate for simple cruise controller IC, its a sample and hold IC with the addition of 1 polypro cap can be...
I've been using double throw relays like this to switch between 37 and 74 volts for years, without a problem. What you are forgetting is that what is being...
... You might find that "Fourth" is not lowest range, because of the improved efficiency of the motor at 72V. If you are riding within about 50% - 80% of the...
... i would never sell something like this. it would be too easy for somebody to hurt themself or somebody else and i would share the blame. ... i'm working on...
Thanks Dick! Helps a lot and saves me (and Jim) from trouble. /Bruno ... _________________________________________________________ Flyger tiden iväg? Fånga...
Hi Shomik - I've test ridden two of these eZee models, albeit not for the long distance they claim. They definitely can reach the 20 mph speed easily and...
Rather than modulate power to the motor, One could use the old EVGlobal method of sounding a beeper, telling the rider to do the decision making,(increasing...
I found three more videos of the Motorino Electric Bicycles. http://cyclesantamonica.blogspot.com/2006/12/motorino-close-up.html The first one is giving...
For those interested in such things, I have posted the "health benefits" section of the 2003 Australian Monash Ebike study over at the Ebike politics group. ...
... this is one of the things i plan to do using the capacity already in the new DrainBrain. If I can just get it to feed me the current and voltage info,...
Is it possible to download that to my computer? I LOVE it! i mean I like Tchaikovsky anyway and the Nutcracker is a favorite of course, but played on BIKE...
Hi Folks, Well, Bicycles involve pedals that help propel the cycle. These Chinese electric mopeds are really pushing the limits, and I personally, am...
... than "3rd"? ... My bike goes 36-38 mph (depending on state of charge) at 74v, 406 mode, and I almost never go that fast. But even at 20 mph, 74v, 406 mode...
Mark G wrote: Is it possible to download that to my computer? I LOVE it! i mean I like Tchaikovsky anyway and the Nutcracker is a favorite of course, but ...
that dial is regen braking, on one side the amps go up to 20 or so, measuring motor draw when riding, the other side goes up to 8 amps or so showing amps going...
Hello, This email message is a notification to let you know that a file has been uploaded to the Files area of the power-assist group. File : /dual...
power-assist@yahoogro...
Dec 2, 2006 11:27 am
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... What??? Again Rob you are wrong here!! AC Current? we are talking about switching the DC from the batteries between series and parallel here?? and even if...
... If we were switching a single motor phase it would only be on a third of the time so it would be an AC waveform going down to 0v and up to VBAT. With 3...
Hi Bob I really like the idea of tying it in with the Drain Brain, I may have a little play with a pic chip as well as we have all the dev boards at work. I...
I use the Power Analyzer Pro, which has a USB interface. It gives me all the information that the DrainBrain would, since I use the pulse input for speed and...
... relay, i ... That's the switching current; just throttle off briefly as you operate the relay. I can't imagine many people would draw more than 20A for ...
... thanks, it looks great, but the only problem for me would be it only goes up to 60V. otherwise it would be excellent. do they give you the data format so...
... I routinely draw 35A for 5-10 minutes when climbing an 8-10% hill at 20 mph now, and that's not pulling my trailer. I am sure I will draw at least 30A...
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