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B&M IQ-TEC Premium and USB power
Well, the sun is starting set a little earlier here in Melbourne,
Australia, so I've been able to assess the beam from my B&M IQ-TEC Premium reasonably well at 9pm on poorly lit back streets. I think it's pretty good on the whole. I was riding last night some distance behind a Toyota Landcruiser 4WD at about 50 km/h on a slight down hill with a tail wind. I was close enough to the vehicle in front to compare their lights to mine. I'd say there wasn't a whole lot of difference. The car lights certainly did produce more light, had slightly more spill to the sides and up a bit, but not by a country mile. Compared to other bike lights I've seen on mates bikes and my own, I've seen none better. Several weeks ago I went looking for USB charger solutions, and was turned off by the size and expense. The one I liked was one where the electronics go up inside the fork steerer tube and there's a USB connector molded into the Ahead headset cap. I decided to make something similar if I could, so I ordered this; http://www.ebay.com.au/itm/New-5V-US...-/350675929815 I can't imagine how they can manufacture these and ship them for such a low price (a few bucks each), but today it landed at my door, and I hooked it up to a variable bench supply and my garmin bike computer as a load. Probably not the best choice. The Garmin doesn't seem to like being turned on, charged, and the charging then stopped. It turns off! You wouldn't want that while you're riding. Anyway, the USB charger electronics did its job, and produced a stable 5V output while the input was a volt above 5 to over 20V. I think a schottky diode bridge and a filter cap will be fine to drive the input of this USB charger, from the tail light connection out of the IQ-TEC Premium. The end result will be a power source for my miniature video camera, that only has enough battery life for about 20-30 minutes of recording otherwise. I hope it doesn't mind the charge power coming and going! -- JS |
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#2
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B&M IQ-TEC Premium and USB power
PHOTO THESE BEAMS ON A STANDARD GRID....down at the Superduper or Bank lot.
this from Lieb http://www.powerstream.com/ |
#3
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B&M IQ-TEC Premium and USB power
On Thursday, February 20, 2014 7:17:53 PM UTC-5, wrote:
PHOTO THESE BEAMS ON A STANDARD GRID....down at the Superduper or Bank lot. this from Lieb http://www.powerstream.com/ http://www.powerstream.com/powerhumor.htm |
#4
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B&M IQ-TEC Premium and USB power
On Thursday, February 20, 2014 10:44:54 PM UTC, James wrote:
Well, the sun is starting set a little earlier here in Melbourne, Australia, so I've been able to assess the beam from my B&M IQ-TEC Premium reasonably well at 9pm on poorly lit back streets. I think it's pretty good on the whole. I was riding last night some distance behind a Toyota Landcruiser 4WD at about 50 km/h on a slight down hill with a tail wind. I was close enough to the vehicle in front to compare their lights to mine. I'd say there wasn't a whole lot of difference. The car lights certainly did produce more light, had slightly more spill to the sides and up a bit, but not by a country mile. Compared to other bike lights I've seen on mates bikes and my own, I've seen none better. Several weeks ago I went looking for USB charger solutions, and was turned off by the size and expense. The one I liked was one where the electronics go up inside the fork steerer tube and there's a USB connector molded into the Ahead headset cap. I decided to make something similar if I could, so I ordered this; http://www.ebay.com.au/itm/New-5V-US...-/350675929815 I can't imagine how they can manufacture these and ship them for such a low price (a few bucks each), but today it landed at my door, and I hooked it up to a variable bench supply and my garmin bike computer as a load. Probably not the best choice. The Garmin doesn't seem to like being turned on, charged, and the charging then stopped. It turns off! You wouldn't want that while you're riding. Anyway, the USB charger electronics did its job, and produced a stable 5V output while the input was a volt above 5 to over 20V. I think a schottky diode bridge and a filter cap will be fine to drive the input of this USB charger, from the tail light connection out of the IQ-TEC Premium. The end result will be a power source for my miniature video camera, that only has enough battery life for about 20-30 minutes of recording otherwise. I hope it doesn't mind the charge power coming and going! -- JS Thanks for sharing, James. That looks like a handy little board. -- AJ |
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B&M IQ-TEC Premium and USB power
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