Hi,
I'm building a balancing robot based around a Teensy 3.2. It will be powered by one 18650 Lithium Ion battery (2.75-4.2V, 3400mAh, 2C).
Part of the robot will be running on 3.3V, including the Teensy, an 9-axis IMU, blue-tooth LE module, sd card, motor controller, quadrature encoders, microphone, etc.
I am using a polulu buck/boost regulator and am wondering whether to:
The same battery will be powering a step-up regulator to 8V powering two motors, which will changing direction and speed frequently, so there is likely to be a bunch of noise.
The second option above would presumably give cleaner power but perhaps is unnecessary and wasteful having the losses of two regulators in series. I'm a beginner here, so would appreciate other opinions about whether this is an advisable extra step.
Thanks,
Dan
I'm building a balancing robot based around a Teensy 3.2. It will be powered by one 18650 Lithium Ion battery (2.75-4.2V, 3400mAh, 2C).
Part of the robot will be running on 3.3V, including the Teensy, an 9-axis IMU, blue-tooth LE module, sd card, motor controller, quadrature encoders, microphone, etc.
I am using a polulu buck/boost regulator and am wondering whether to:
- Have this regulator output 3.3V to power the Teensy 3.3V input and other components directly. (Pololu suggested the regulator would likely work fine like this).
- Have this regulator output 3.6V and then use the Teensy 3.2 linear regulator to drop to 3.3V
The same battery will be powering a step-up regulator to 8V powering two motors, which will changing direction and speed frequently, so there is likely to be a bunch of noise.
The second option above would presumably give cleaner power but perhaps is unnecessary and wasteful having the losses of two regulators in series. I'm a beginner here, so would appreciate other opinions about whether this is an advisable extra step.
Thanks,
Dan
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