Electrical Engineering Stack Exchange
Electrical Engineering Stack Exchange

Questions tagged [autonomous]

19 questions
13
votes
3 answers

What electrical connectors to use underwater?

I am looking at doing a project with a AUV (autonomous underwater vehicle) and need to know the best type of connectors to use. I have listed the things I need from most important to least important: Reliability Ease of in…
Jake Robinson
  • 1,034
  • 9
  • 20
9
votes
2 answers

Autonomously-powered (battery-less) wireless pushbutton

What would be a feasible approach/circuit-design to make a self-powered wireless pushbutton, assuming it is even realistic? This is what I mean by each of the three terms: Self-powered: Power derived only from the mechanical action of pressing the…
boardbite
  • 4,892
  • 11
  • 47
  • 73
8
votes
2 answers

Resources to understand robot locomotion and Gait functions

Recently I have been watching Robert Full's talks on TED. He has some obscenely interesting works on robot locomotion. This has intrigued my curiosity and I have been trying to understand his works. I have tried to read many papers on these type of…
Rick_2047
  • 3,897
  • 5
  • 46
  • 68
6
votes
5 answers

Can you run a BLDC motor backwards without damage?

Can you run a BLDC motor backwards without damage? Is it OK to drive a model airplane BLDC engine backwards while landing, so it gets a little "reverse thrust" and come to a stop a little quicker on the runway? Is it OK to drive a model helicopter…
davidcary
  • 17,426
  • 11
  • 66
  • 115
5
votes
2 answers

Can high voltage power lines EM provide power for drones?

How is the EM field that surrounds high voltage power converted to produce a current through a wire? How much electricity can be produced without coming in contact with the wire? Could the EM field be used for a guide to travel along by sensing…
user103579
3
votes
2 answers

Risks of variable power loads on an offgrid inverter (zero-crossing PWM)?

My goal is to regulate loads in my offgrid inverter-powered system. I moved to a fully offgrid house with batteries and a pure sine inverter. I would like to control how much I dump of my solar production into my water heater, like when I was…
MoonCactus
  • 353
  • 1
  • 12
1
vote
2 answers

RC Servo Auto-Sweep with Op amp Control

I'm trying to design a circuit that will sweep an RC servo motor (an SG90) continuously from -90deg to 90deg position and to repeat this process indefinitely. I'm aiming to use one IC (a quad op amp 14pin DIP) as the main component. The circuit will…
Kevin Harper
  • 13
  • 4
1
vote
2 answers

What will happen if I use a voltmeter instead of an oscilloscope in a Chua's circuit?

Suppose I use a voltmeter instead of an oscilloscope in chua's circuit. Voltmeters only measure the average voltage over a short time period. Questions (please consider both DC and AC voltmeter, because I don't know which one should be…
Jethro
  • 173
  • 7
1
vote
0 answers

Chua's circuit's equilibrium at \$x=y=z=0\$

The Chua's circuit satisfies the differential equations from Wikipedia. Clearly, \$x=y=z=0\$ is a solution, but not the solution we see when double scroll appears. Since at \$t=0\$ when we switch on the circuit, \$x,y,z\$ must be all very close to…
Jethro
  • 173
  • 7
1
vote
4 answers

How can Chua's circuit work without having a power supply?

I am now analyzing the following Chua's circuit. The triangle at the bottom denotes zero electric potential (I struggle to find the right symbol). \$N_R\$ is the Chua's diode. So the circuit is non-linear. This version of the circuit can be…
Jethro
  • 173
  • 7
1
vote
1 answer

System design for python driven autonomous vehicle (boat)

I've very recently started a project (with a few friends) where I will be building an autonomous boat. From a high level, it will be solar powered with a relatively simple motor driven propeller, and some on board sensors and such. It will be GPS…
DJSunny
  • 141
  • 3
0
votes
1 answer

Help Understanding an Autonomous rectifier

Could anyone tell me how does the circuit below work ? It's a autonomous rectifier. Taking the signal between the two output resistors gives a full-wave rectification, and taking it at the output of the second operationnal amplificator gives an…
eldala07
  • 13
  • 5
0
votes
2 answers

How can I use a 5200 mAh Li-Po battery to power multiple things?

I'm building an autonomous car and have a 7.4V 5200mAh 2S Li-Po battery that needs to power the following components: Brushless DC Motor (Through ESC) Raspberry Pi 4 Servo motor Arduino Uno Another smaller servo I have bought these DC-DC…
robotwaale
  • 1
  • 1
0
votes
1 answer

How to reach a required autonomy with a li-po battery?

CONTEXT : I'm working on a project consisting of making an underwater robot "fish" for an aquarium . and it is mandatory to get at least 8 hours of autonomy. I'm responsible of the electrical part of the project and during all of my bachelor degree…
Ben Derrahim
  • 1
  • 1
0
votes
0 answers

Power management switch for Low-Power Application

In my low-power application I have a MCU waiting for an interrupt to wake up. (see picture) There are two sensor ICs (IC1, IC2) which consume very little and wake up the MCU via the interrupts. After waking up, power-heavy ICs (two transmitters IC3,…
Maximilian Wiens
  • 171
  • 7
1
2