The PULSE from Uncharted Play, the jump rope that stores energy to power a cell phone. 15 minutes of jumping charges a phone to 50%
RMP: ~50
Open circuit voltage: ~= 10-12 V
Short circuit current: ~= 0.2-0.3A
I am trying to light up ~100 Leds, along with a micro controller to control the animation. A ws2812b led can use up to 50mA when it’s set to full brightness (at 5V). However, I am not going to set the brightness to high due to the current we can generate is from 0.2~ 0.3A. After testing, I can control 100 LEDs at 0.1A current when setting the brightness to 8/256.
In my case, I am going to light up 100 LEDs at 0.1 A + a microcontroller(ATtiny84), they can both take 5V input and will use ~100 mA and ~10mA at 8Mhz. As a result, we can get the power consumption through this:
Power