Im building an telemetry system based on Arduino Nano for an RC-Car (DC). I would like to power the Arduino with the batterie of the car.
Battery full charged: 8.5V------ Discharged: 6.3-6.5V
For that ive thought to use an Step-up-Schwitch, but im getting lost.
I bought a MC34063A, but to get this boost, I need an capacitor with more than 12.000uF … :o (attached data)
I have not very much space to install the elements (Sensors, board, RFM12-Modul,etc.) and a capacitor with this value is huge!! (maybe you can tell me some little model)
Now im looking for LM2621 but I dont find a “circuit designer” to calculate the element values i need to get it work how I want.
Other option Im thinking, is just powering the Nano with 3 Button cells in serie (maybe is better, if I think at the inductive currents of the motor and the current value (peaks of more than 150A)).
So im just a beginner, so excuse me if im asking stupid things
I hope I was able to explain myself.
Thanks in advance, hope you can give me some hints.
MC34063A design tool.pdf (97.5 KB)