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Questions tagged [power]

In physics, power is the rate of doing work.

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48 views

How do i decide what batteries i need for my robot?

I am trying to design a quadrupod(hexapod without the middle legs) and I need to decide an appropriate battery source. Currently I have 8 Mg996r's and 4 SG90's. What i did to measure the battery ...
0 votes
1 answer
22 views

How can I troubleshoot these under-powered servos?

I have three 150kg servos installed in a robot arm. I have tested them successfully when connected to a servo driver hat on a raspberry pi zero 2w (image). However, they were under-powered because the ...
1 vote
1 answer
23 views

Are 8 cells of 1.2 V enough for my Quadruped(spider)?

i have a sprawling type quadruped spider robot. I have 4 Sg90 and 8 mg996r servos used for the legs. I am using a Arduino Mega and I wanted to know if I would be able to power this with the batteries ...
0 votes
1 answer
18 views

Power management Hardware, recommendation

most real robots will need to provide different voltage level, i.e 5V for MCU, 12V for actuators, 19V for PC/NUC 24V for... Also they all need to monitor charging of batteries as well as Overall power ...
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1 answer
73 views

Do I need anything between my Raspberry Pi, Orin Nano and Power Bank to protect my RPi and Orin Nano?

I am a beginner and am learning by building a 4-wheel mobile robot. I plan to use Li-ion power banks to power my Raspberry Pi and Orin Nano. Do I need any protection between the power bank and the ...
19 votes
3 answers
3k views

What is the best way to power a large number (27) servos at 5 V?

I apologize if this question may sound a little vague. I am working on a robotics project that will contain 27 servos of various sizes and I am having trouble figuring out how they should be powered. ...
1 vote
0 answers
109 views

Hexapod Project Specifications - Power and Servos

So I will get straight to the point. I wanted to get ambitious with my robot project while trying to keep the budget minimum. I have browsed through several posts regarding power sources and servos, ...
2 votes
3 answers
456 views

How to create a stable 48V 10A power supply?

I'm shopping for batteries and it's easy to find a 48V lithium ion battery that has like 30A max continuous discharge rating. However, I know that the battery supply has a variable voltage from 54V - ...
1 vote
1 answer
56 views

How to choose the correct power switch ratings for robotics?

I am making a hexapod with MG996R servos and according to the specifications, each servo has a running current of 500 - 900 mA and a stall current of 2.5 A at 6 V. Since I am making a 3DOF hexapod, ...
3 votes
2 answers
8k views

Choosing correct power supply for Stepper Motors

I am building a machine and need 2 Stepper Motor for that. The motors are driven using by a 3.3v arm device. I have made the following selections regarding the stepper motor, stepper motor driver and ...
0 votes
3 answers
166 views

Stepper Motor power supplies

Being new to the world of stepper motors, I have a Longs Stepper Motor 23HS9430 bought from eBay it's a 3.0 A 5 V motor. Although I have been reading about the supply voltage for the motor, ...
1 vote
2 answers
117 views

Power Model for humanoids

I am in the process of creating a Power Prediction Model for the Hubo Robot. The Robot has 38 Degrees of Freedom and has a computer some sensors and motor boards. The motors are powered through Motor ...
2 votes
2 answers
102 views

problem of power on PIN 1 and PIN 2 of DIN connector of Roomba 521

I notice there is a problem of power on PIN 1 and PIN 2 of DIN connector of Roomba 521...I have only 0,5 V but it's expected 12V...motherboard damaged?
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0 answers
29 views

Building a wired remote control car using a raspi and drone motors

I have a small raspi controlled remote control car using regular drone motors such as these ones and tried using this 60w power supply unit that can be downregulated to 3v and connected everything ...
1 vote
1 answer
93 views

Does anyone believe a high voltage battery say 100kV is possible? If so do you have a schematic or know a seller? [closed]

In the interest of soft robotics I need a high power programmable battery power supply. I also found this. https://aip.scitation.org/doi/pdf/10.1063/1.2362721
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2 answers
165 views

Best way to power Raspberry Pi 4 8GB + Arduino Uno Robot?

I am building a robot that uses an arduino to drive 4 mecanum wheels, which will be controlled by a Raspberry pi 4 8GB with the Lobe Machine Learning Hat via a serial connection. I'm fine with having ...
2 votes
1 answer
1k views

Stepper Motor: Direct Drive vs. Belt Drive vs. Geared Stepper Motor

I have built a juggling machine. Each arm is driven by a 4A 23mm stepper motor. The motors are each driven by a TB6600 set to 800 microsteps. By trial and error, I have found that the motors skip when ...
0 votes
1 answer
91 views

Do hobby servos respond to step inputs with a step in torque?

I'm designing a piston that I need to expand a few cm in <100ms to load energy into a spring-mass system with around a pound of force (as shown below). Based on power specs alone, high-end hobby ...
7 votes
3 answers
2k views

how to power extra usb devices for beaglebone black

I'm building a robot that uses a beaglebone black, however I have several different usb devices that I want to connect to it (microphone, usb sound device and some other things). Now I have heard that ...
2 votes
1 answer
170 views

Motor driver damage and jerking behavior when load driving in same direction as motor

I'm having trouble with a gear motor being powered by a power supply, while it is being driven by the load in the same direction as the driver wants to drive it. Here is a simple diagram: The gear ...
1 vote
1 answer
280 views

Power to Raspberry Pi and DC motors from a single USB power bank

I'm running a simple robot involving a Raspberry Pi 3 and 2 JGA25-370 motors. The system is powered from a single Powerbank (EasyAcc 10000MAh) which has 2 2A ports. DIY USB cable has data pins ...
2 votes
1 answer
1k views

How to calculate power supply requirements for Closed Loop Stepper Motors?

I have a CNC Router table that has 4 Nema 23 stepper motor (open loop). I want to upgrade the machine and use 4 Neam 34 Closed Loop Steppers. These are the motors and drivers I'm considering: Steppers:...
1 vote
4 answers
2k views

Is it possible to use a LiPo charger as a lab bench power supply?

I recently thought about building a lab bench power supply, it comes in cheaper and I love to build things... But then I also have a LiPo charger an iMax B6AC, that I had bought for my quadcopter, ...
0 votes
1 answer
58 views

Output power of an actuator - General definition

I'm looking for a general definition of the output power of an actuator. Can you suggest me any book or paper or education website where I can find it please? Thank you in advance. EDIT I read the ...
3 votes
3 answers
310 views

Powering multicopter with multiple dedicated batteries

I am in the starting phase of building a fairly large octo-copter drone. I am currently thinking about the possibility of powering my octo-copter design using 4 separate batteries where each battery ...
1 vote
2 answers
135 views

How to configure a DC power distribution bus

If you have a distributed system of DC motors, sensors and microcontrollers, is power usually distributed over a single high volt bus, using DC converters where needed? Or is it typical to implement ...
2 votes
2 answers
1k views

Am I calculating my drone's power consumption right?

I want to make an drone with these motors: https://www.amazon.com/XtremeAmazing-2200KV-Brushless-2212-6-helicopter/dp/B01M3UBGU9 1: First of all, are they good? If not, could you suggest me other ...
2 votes
4 answers
42k views

Does the mAh of a battery mean longer power or more power?

If a Lipo battery has more mAh will it be slower to run out of energy or will it have larger power output? Thanks in Advance
3 votes
1 answer
86 views

High power jumping mechanism in small robots

I recently saw this video on YouTube featuring a jumping robot: 5 Fastest Robots In The World I was curious how this is accomplished mechanically? Do they wind a strong spring or use some sort of air ...
3 votes
3 answers
581 views

How to get constant motor RPM regardless of battery voltage?

I have a brushless motor with a propeller attached, driven by an ESC and a LiPo battery. I noticed that as the battery level drops, the motor spins slower, which makes sense. My question is is it ...
1 vote
1 answer
2k views

How should I power my servo motor with the Adafruit PCA9685 chip?

So I have an Adafruit pca9685 controlling an HSB-9380TH servo and a MG-996R servo. I recently began learning about building robot so I apologize if these questions seem dumb. I literally spent a days ...
1 vote
1 answer
192 views

Powering servos for quadruped spiderbot using arduino uno [closed]

I am using 12 towerpro SG90 servos. What battery should I use for powering 12 servos for my arduino uno? Can i use the 12v battery, plug it in to 12v dc jack of arduino and tap the 5v output of ...
3 votes
2 answers
342 views

Can high voltage power lines provide a super highway for drones?

Is there a way to convert the EM field that surrounds high voltage power lines for direct usable electricity for air or ground drones for continuous flight or travel? Added: Yes could the EM field be ...
0 votes
1 answer
342 views

What is the best way to power source small Robot

I am trying to make a small robot with 4 12 v DC Motor + Raspberry PI + camera possibly a USB camera. I am very confused with power source. Is it possible to get all of them powered by a single power ...
3 votes
2 answers
14k views

How to calculate the current consumed by a brushless motor on a quadcopter

I want to create a virtual quadcopter model, but I am struggling to come up with a satisfying model for the brushless motors & props. Let's take an example, based on the great eCalc tool: Let's ...
0 votes
1 answer
85 views

How to power this servomotor?

I would like to use and test this type of servo motor, significantly stronger than the ones I've been using previously. However the datasheets seem to be limited and I can't exactly tell how to use ...
1 vote
2 answers
104 views

Powering 6 servomotors requiring 6V and 2A each

The title pretty much says it all. I'm on a team that is currently building a robotic arm for the capstone project of my engineering degree, our design is similar to the Dobot (5 degrees of freedom). ...
2 votes
1 answer
398 views

Powering a multirotor with dedicated batteries for each motor

I'm currently thinking of extending the battery life of my quad by powering each motor and ESC individually. I will be using 1 dedicated battery for each motor, and 1 dedicated battery for the flight ...
2 votes
2 answers
487 views

Calculating thrust generated from electric engines

I wanted to calculate the amount of thrust generated from the engines. I am using the blade 180 cfx model. http://www.bladehelis.com/Products/Default.aspx?ProdID=BLH3450#quickSpecs After some ...
0 votes
1 answer
140 views

Power delivery issue for our human following robot project

We are very new in the game of robotics and we are dealing with a power delivery issue for our motors. We are using two 12V DC motors to give motion to our robot. We are using the L293D motor driver ...
1 vote
2 answers
175 views

Are robot's codes usually compiled or interpreted?

I would bet that usually these are compiled for better performance, and of lawful reasons (make it harder for any user to save code without decompiling), though I'm not sure. In any case, I believe ...
1 vote
0 answers
118 views

PixHawk I/II not working in 'Rover' mode (firmware issue?).... HELP!

We are working in a new agricultural rover, and we opted for PixHaw-II+ROS+MavLink platform as a good control alternative. However, our project is stuck as the PixHawk seems to work only when it is ...
0 votes
1 answer
44 views

Powering a robot using the 12v adapter

Hello every one hope you all alrigt I am working on a mecanum wheel robot and now I am facing a problem to afford a lipo battery which the required voltage to power my robot is 12 So I think that I ...
3 votes
3 answers
2k views

Why do my ESCs stop working?

I'm new to robotics and this is my first time building a quadcopter. I'm unable to work out why I keep losing ESCs. Most recently in testing, I've managed to calibrate all 4 ESCs and accurately ...
3 votes
3 answers
5k views

Supplying power from a power bank to an arduino and DC Motors

I have a two port powerbank capable of supplying a maximum of 5V 2.1A I'm using it to power an Arduino and a L293D IC connected to two DC motors which have the following specifications: Working ...
2 votes
1 answer
90 views

What battery capacity would be required to run a component for an hour?

I have a 9.8kW Component that runs at 51.8 Volts. That means I need a battery that has about 9.8kWh of energy to run the component for an hour For the sake of simplicity, say I have some batteries ...
0 votes
1 answer
53 views

Will this have more or less lifting strength

Bit of an engineering question. If a snake robot is 100 cm long, and every 10 cm is another motor. Would the robot lift more weight, the longer/more motors attached to it.. or is lifting ability ...
2 votes
2 answers
418 views

How to decide the battery power for my robot

I need my motor to be powered with 12V, 5A for 1 hour continuously. How can i decide the Ah rate of the battery. Please suggest some lithium ion battery for the specification
0 votes
1 answer
35 views

2 way Switch powerbar [closed]

For some important reasons the plugged cable 1 must not be on at the same time as the the plugged cable 2. It must be idiot proof... I'm talking about regular house power north america. What is the ...
2 votes
1 answer
1k views

How are huge industrial robots powered?

Take a look at this monster lifting a car. Now I don't think one can get that power by plugging into a wall outlet. So how are these huge robots (their servos) powered? Gasoline? How is power stored, ...