Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Why does adding a capacitor in series to an AC motor increase its speed? The capacitor does boost the voltage somehow because the input voltage is 132v (mexican mains) and coming out from the capacitor are 230v. This has to do with the inductance because it wont work without the motor. I made...
Consider a hydraulic steering system with small electric motor atop. The maximum output torque of this motor is about 2 N.m. This output torque is input to worm gear. The output torque of the worm gear is about 20 N.m.
This steering subsystem is mounted in a prototype truck.
The requirement...
Hi – I’m new to this forum and need some help with technical information as I have very little electronics/electrical knowledge.
I’m building a miniature garage for my robot lawnmower, and want the doors to be electrically controlled.
Please can someone advise if I should use a DC or AC...
Hello,
I search for a motor steered with own ESP32 software.
I would like this:
RC Jet Boot Motor Underwater Thruster 7.4V 16800RPM on https://www.aliexpress.com/item/33031534723.html
but I don't understand why there is a CW and CCW version,
because I think, if I change the polarity, the...
hello there
i'm new to the forum and i'm here for a project i'm doing.
u've probably seen some reverse pendulum or small bicycle with Reaction Wheel which can stay balanced. here is a pic of what i mean:
rn, i'm trying to choose a DC motor for driving the reaction wheel, i've used matlab...
Hi, I wonder if anyone could help me!
In my project, I want to create a battery-powered motorized ‘lazy susan’, where the top part of wood will spin with an object on top. I am quite confident on how I will attach all the components to do this as there are many youtube tutorials on the internet...
Experimenting with 10mm mini motor w/linear screw, 4 wire, 5VDC & wondering if a bypass capacitor is feasible for direct drive, no controller? If yes, what size cap is appropriate? Here's the unit: https://www.ebay.com/itm/383717016058
Hi Guys,
I have a college project where I need to controll a motor (27V / 3 A), I used a H Bridge l298n in parallel to support the current, It worked for while and then stop but I don't know what was wrong. Does any body know anthing that could help me?
The motor is a Maxon 118752 precision...
Hey all,
I am wondering if someone could assist me in a project I'm trying to do. I feel out of place because electronics are not my forte, I haven't really worked on them so this would be my first project. In other words I need help and in the words of Michael Scott from the office you'll...
Hello everyone,
I need the help of the Community,
I am working on a project, I need to create a device that can open or close a door lock via Bluetooth, this device works on batteries and it is just a simple adapter that you plug on your existing door lock, you just put the key Inside and it...
I'm planning on making a solar-powered go-kart and I'm not sure what solar panel to use. This is the motor I'll be using: https://www.ebay.com/itm/250-W-24-V-DC-electric-1016-motor-Chain-f-scooter-Go-Kart-minibike-razor-Drifter-/151885104976
Good morning all,
I am working to troubleshoot a piece of equipment, pool cleaner, that is malfunctioning, this is the only PCB in the device, so I'm certain the problem is with this. What is happening is when the cleaner receives power, it will start up in about 5 seconds, run for about 1...
Hello Everybody, I’ve been wanting to ask this question for a very long time.
My main thing is knowing if a low power, low current motor is possible using a BPW34 photodiode. I hope you guys can help. Thank you!
I purchased a 3 in 1 soil tester meter...
Hi all,
My project is to create an infrared remote to change the speed and switch on/off of a cap start/run type single phase induction motor operating at AC mains (230V, 50Hz).
I have worked out the controlling the speed of the motor part (using a solid state relay to control phase angle of...
Looking into the datasheet of the IRAMX20UP60A, I found a typical application connection which I am trying to understand. I attach a picture of the application circuit. The part inside the black square is what I don't understand. As far as I understand, if a low signal goes into the base of the...
Hi all,
I am essentially working on a research project in a lab where we would like to synchronize multiple Brushless DC motors or offset their phases (30 degrees offset, perfectly synchronized, etc.). Therefore, we are attempting to control a BLDC motor by powering the 3 coils in the proper...
Hi all,
Can anyone explain why some motors regularly burn out, I am thinking specifically about electric hand drills and to a lesser extent angle grinders.
I know how they burn out- normally the insulating varnish on one of the coils breaks down and creates a short- I think that is right. If...
Hello, I'm new to this forum so I would like to say Hy to all.
I builded homemade electric generator. It's 2kw generator from Briggs&Stratton lawn mower engine (four stroke with carburator and centrifugal governor) and 1phase inductive industrial motor.
I managed to get motor to generate...
Hi :)
I would like to present here my 6 DOF robot arm driven by servo drives out of my running Kickstarter: https://kck.st/2gal6IG
Let's start with the Robot Video:
The robot is mainly made out of laser cut parts (steel and wood). The last axis two are made in a 3D-Printer (ABS). As gears I...
First off - this project is all about automation, so im looking to have it run with no manual intervention except for initial setup, and im pretty new to working with electrical relays.
I have a DC motor that triggers it's own mechanical switch to reverse it's direction. I have an electronic...
I'm trying to find RPM of a dc motor using PIC24F microcontroller. I've 200 RPM DC motor and IR sensor. I'm counting the pulse input from IR sensor when black material which attached with DC motor shaft contact with IR sensor. I'm printing pulse count for every 60 seconds using PIC timer...
Hi,
Ive tried to find what rating of power diode to wire in series with an emergency shut off button, I'm going to be using a DPDT as I have 2 batteries on 2 circuits - the 11 volt battery to the motors via a robo claw motor shield (2X30A) and a 7 volt battery for an Arduino and logic power on...
Hello
Just as the title says I have an electric drill 110v/220v. I want to make it run slow.
Thing is when I bought this drill few months ago I didn't knew much about it. I just bought the one with more watts as the guy at store suggested.
Now I found that drilling through metal requires slow...
Hello
I am basically new to all this... ESC stuff..
Thing is i have couple of old hdd's and dvd drive's motors lying around. I need to drive these motors for DIY projects.
So i researched a bit on them and found out that i need some sort of ESC to drive these BLDC motors and Servo controller...
Maybe you all can help!
I am a physics major and electronics is not my strength.
Here’s the situation: I have certain materials with which I need to accomplish a certain task (that being, to make my zoetrope)
I. The task
• Make a stepper motor rotate at certain rpms.
• Make 5 LED’s flash...
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