... My experience with mosfet body diodes (in a solar MPPT circuit) is that they are definitely not as fast as a real Schottky rectifier. I went though a few...
454
Dennis Gibson
dennis.gibson@...
Jan 1, 2001 11:37 pm
... I am not so sure about the speed (not normally specified in data sheets), but I am sure about the forward voltage drop which is typically in the order of ...
455
D H Currey
dcurrey@...
Jan 2, 2001 6:47 am
Hi Folks, I took up DG's suggestion of replacing the 3 silicon diodes (which got too warm) with Schottky diodes (MBR6045WT). I am using 2 of them in parallel...
456
Colin Dedman
cjd121@...
Jan 3, 2001 12:25 am
... Looking good. You might also consider removing the .1uF capacitor, as it will make the switching FET work harder than necessary. When the FET switches ON,...
457
D H Currey
dcurrey@...
Jan 3, 2001 11:43 am
Hi Folks, I checked the waveform on the cro with the .1uF in parallel with the 2 Schottky diodes across the motor. Removal of the .1uF showed a spike increase...
458
Colin Dedman
cjd121@...
Jan 3, 2001 10:41 pm
... No problems at all. As I said, even if brief voltage spikes did exceed the 55V MOSFET rating, absolutely no harm would be done - the spikes will be safely...
459
Bill Volk
bvolk@...
Jan 4, 2001 1:16 am
Reply to Mike: m1062@... ... From: Michael Moore [mailto:m1062@...] Sent: Wednesday, January 03, 2001 7:06 PM To: bvolk@... ...
460
Tim & Allyson
timotsc@...
Jan 4, 2001 9:18 am
I hope I'm not boring you guys with the Qn's about electric hub motors - anyway I'm keen to hear from anyone who's had experience with the Heinzmann setup. ...
461
Don Barletta
donbarletta@...
Jan 4, 2001 12:16 pm
... I had a Pro Drive on my Rocket for some time. It worked extremely well, exactly as promised. The drive unit quick release feature makes it very handy and...
462
edbike@...
Jan 4, 2001 1:22 pm
Greetings, The Heinzmann hub motor is the best (and most expensive) hub motor available. It is used by EVGlobal (originally EVG used the least powerful and...
463
Andy
ANDY1@...
Jan 4, 2001 2:12 pm
I own both the Heinzmann & the Pro Drive & I haven't owned them for long, but I feel comfortable in making some initial observations. Like everything else in...
464
Andreas Dutschke
adutschke@...
Jan 4, 2001 2:57 pm
I Asked Princess about their return policy and they will take it back for just about any reason. Is there a way to test these? My idea was to charge it up and...
465
Andreas Dutschke
adutschke@...
Jan 4, 2001 2:59 pm
I looked at the Langley store and the "hub" motor is not what looks like other hub motors I have seen on the net. I would think it is just a regular 12V motor...
466
LEVTusa@...
Jan 4, 2001 3:01 pm
Greetings, The main reason for the restricted output at startup on the Heinzmann unit is to prevent heavy spike loads on the battery which degrade it much...
467
Colin Lewis
colin@...
Jan 4, 2001 4:42 pm
I had similar impressions of the Pro Drive. The throttle position acts more like a cruise control. For example, from a stop, if you move the lever to the "5 ...
468
Jrnymn
jrnymn@...
Jan 4, 2001 5:44 pm
Tim & Allyson, although I can't give you the personal experience for comparison that you are looking for, I would suggest you look into the Birkestrand /...
469
Scott MacGregor
smacgregor@...
Jan 4, 2001 6:11 pm
Has anyone converted to the Magura twist throttle with a Pro-Drive? I've been installing them for customers for over a year, with good results. It's a lot more...
470
Paul Luider
paul_luider@...
Jan 4, 2001 6:12 pm
Shipping for the top run motor usually runs about the same as the cost for the motor. Unless someone is distributing out of the U.S. now....
471
Giles Puckett
giles@...
Jan 4, 2001 9:57 pm
... Has anyone actually ridden, or even seen, the Toprun motor yet? -- \ - Giles Puckett ______ o`-+`o o`-oo+ o`-oo+...
472
Dave Everett
deverett@...
Jan 5, 2001 12:02 am
... The Diverse has controllable acceleration and deceleration ramps. I haven't used the decel ramp, but the accel ramp is great, you can set it to give you...
473
Ken Hill
kwhill@...
Jan 5, 2001 6:10 am
I've logged about 1400 miles on my USPD and agree that finessing the throttle is a bit of a pain. I've taken out the spring and turned mine into a "tractor...
474
Michael McMillan
mailegroups@...
Jan 5, 2001 9:35 am
Now I have a very elementary understanding of what is going on. Here is how I understand it. A PMW comptroller is a Pulse Width Modulated controller. This is...
475
Bill Volk
bvolk@...
Jan 5, 2001 3:37 pm
FYI: Hi Bill. Thought you might be interested in this, especially if they ever convert to methanol. http://www.electric-bikes.com/fuelcell.htm You can post to...
476
Andreas Dutschke
adutschke@...
Jan 5, 2001 4:27 pm
Below is the write up on this unit. It has a good picture also and the stats. On the energy density are interesting. Thursday June 15, 2000 Manhattan...
477
Eric Peltzer
eric@...
Jan 5, 2001 5:22 pm
I just put a Pro Drive on a friends adult trike. It has a similar throttle problem - jerky at start up. Also, it seems to get stuck at startup sometimes. It's...
478
Tom Genereaux
entropy@...
Jan 5, 2001 6:11 pm
The battery pack is just that - a battery pack. Nothing there but two batteries, wires, switch and light. The controller is buried in the motor housing, and...
479
curt.onstott@...
Jan 5, 2001 6:38 pm
The stock throttle pots on these are pretty bad. I put a Magura twist throttle on mine and the difference in speed control is amazing. It's also more ...
480
Kerry Drew
kerryika@...
Jan 6, 2001 1:04 am
Hey, Cyclists!!! Just planting a seed early so you can save the date and tell all of your friends... Take out your new 2001 calendars and reserve Sunday,...
481
Ken Hill
kwhill@...
Jan 6, 2001 2:07 am
What is a Sprague clutch? I'm about to tear into my USPD beacuse the clutch/freewheel is not disengaging. As I mentioned in a previous post, I am a bit...
482
Tom Genereaux
entropy@...
Jan 6, 2001 2:39 am
A Sprague clutch is a type of centrifugal clutch, just a compact form of freewheel assembly. Simply rolling the rig backwards won't create any problems -...
