I have some questions on powering my project. It is currently using a PC power supply to power my SSC-32, with VS=VL jumper installed. But I would like to replace it with a battery (or batteries) as well as add additional components requiring power and am trying to figure out how to distribute the power. The objective is to remove the cables that currently tether the penguin to my PC.
Right now, the PC power supply is successfully powering my animatronic penguin project I had been warned that I was lucky using that supply, as it shouldn’t have enough voltage overhead to drive the regulator.
The power supply is good up to 8A and provides 5.2VDC. Mainly it is powering the SSC-32 and 11 servos. I am also using a 5VDC pin on the SSC-32 to power a circuit that converts audio input - envelope follower - to a 0-4VDC signal to coordinate mouth servo movement to the audio being played by an LM386 audio amp (on the same board)
Additionally, I want to power a Bluetooth module as well as a stereo audio Bluetooth receiver within the robot. The latter will pull at least another 180ma. Should I create a separate regulator circuit to power the Bluetooth module, the envelope follower, and the stereo audio receiver? Should I use separate batteries for logic and servos (it works fine with one source now)? Any recommendations?
I know that - but it’s working. I had this discussion in another post. Once I get back to my laptop, I have a new diagram, based on Dialfonzo’s recommendation and a 7.2 VDC battery pack.
I was looking for confirmation that you guys think my latest diagram will work? I know that the BT audio module is going to pull 180ma, but what will the Ssc-32 and the BT module require. I’ll have to figure out the current requirements for the AAEF module myself. Will a 1A Ubec be sufficient, do you think?
VS goes directly to VS1 with VL=VS removed, therefore only the servos are being powered at 6V - fine.
7.2V battery goes through a voltage regulator, bringing the voltage down to 5V, and is then connected to a 5V pin to power the ATMega chip - good.
The other accessories are also powered at 5V from the regulator - also good.
Why not just use one battery and one regulator which would give you both a 6V output and a 5V output?
In my mind, that would be two regulators. Is there one UBEC that supplies both voltages? I ould probably make one as a linear regulator, but some of the switching regulators available look good.
