Pedal Power News Flash
I just finished a test I have been wanting to try "forever."
I directly pedaled a laptop!!!
Here are the specs:
- PPPM - nothing special; parts as outlined in the plans.
- Generator - as in the plans.
- NO BATTERY
Extra:
- Maxwell 58 Farad 15 Volt Ultracapacitor (to help smooth and store
the power)
- DC-DC Converter - AD-SDR-70W - Universal DC-DC Regulated Adapter
15-24 VDC for all types Laptop from car plug $19.95 from this site:
AD-SDR-70W
Laptop:
- IBM Thinkpad model 2373, with battery (Says "T40" next to the
screen. This laptop is two years old.)
- CPU: Pentium M
- RAM: 1GB
- Hard Disc: 42GB
The test:
First, I pedaled the Ultracapacitor up to 13 volts DC. The DC-DC
converter was plugged in during this time, and the green light came on
at around 7 volts.
I stopped pedaling at 13 volts. I dismounted, plugged in the laptop,
and pressed the power button. It booted immediately! The
Ultracapacitor voltage began to drop slowly. It took about 30 seconds
to go from 13v to 12v.
At 12v I got back on the PPPM and started pedaling again. I pushed a
bit to get the voltage back to 13v and then cruised at that speed,
holding the voltage at 13 volts while the laptop finished booting.
+++ AND IT WAS EASY +++
So there is an example of
powering a laptop with the PPPM - a total
success.
In the table below, you will see "Effort" listed. Check the
PPPM Science page to see specific
data relating physical effort to power levels.
Here are the stats for the laptop, and other devices: