Aug 28, 2008 #1 M Midknight 0 Joined Dec 24, 2007 Messages 283 Points 0 If your running a PHR-803T blu ray diode at 150ma with a flex drive, using a 3.7V 17670 1800mAh battery. Would you get 12-hours of life off one charge?
If your running a PHR-803T blu ray diode at 150ma with a flex drive, using a 3.7V 17670 1800mAh battery. Would you get 12-hours of life off one charge?
Aug 28, 2008 #2 M Murudai 0 Joined Apr 28, 2008 Messages 2,235 Points 0 The driver would absorb some current too, wouldn't it? I mean that's driver output, not driver input you've got listed there.
The driver would absorb some current too, wouldn't it? I mean that's driver output, not driver input you've got listed there.
Aug 28, 2008 #3 M Midknight 0 Joined Dec 24, 2007 Messages 283 Points 0 Correct. It wouldn't be 12-hours. But it would be a lot. I'm going to run a test as soon as all my parts get here.
Correct. It wouldn't be 12-hours. But it would be a lot. I'm going to run a test as soon as all my parts get here.
Aug 28, 2008 #4 brtaman 0 Joined Jun 12, 2008 Messages 1,199 Points 48 The ma load on the batt would be higher than the ma going into the diode, this is mainly due to the voltage diff. So it is I*V=I*V 150max5.5 = x(ma) * 3.7 (4.2-3.x) This does not include the minor inefficiency of driver. Not too good at electronics but it should be right Thanks brtaman
The ma load on the batt would be higher than the ma going into the diode, this is mainly due to the voltage diff. So it is I*V=I*V 150max5.5 = x(ma) * 3.7 (4.2-3.x) This does not include the minor inefficiency of driver. Not too good at electronics but it should be right Thanks brtaman