0
votes
1answer
36 views

Wireless DC Motor & Linear Actuator Control

These are the 2 items that I have: 24V 110RPM 1Amp DC Motor. 24V 100mm Linear Actuator. First Question: To run the DC Motor I am thinking of getting this 24V 2A power supply in the hope that both ...
1
vote
3answers
72 views

Will running a DC motor below stall current damage it?

We have DC motors that power wheels on a car. Because of internal friction, the motors will not actually rotate until they are given 50%+ power. However, they do make some neat noises within this ...
1
vote
1answer
52 views

Differential Drive for Heavy Robot

I'm asking here another question in relation to my previous one. I would like to know how would one proceed when you want to control a heavy robot with differential wheel drive. When it comes to ...
4
votes
2answers
142 views

Result of constant current through DC motor under different loads

I've done some research on brushless DC motor and have a few questions what would happen when a constant current is sent to a DC motor. From my understanding, the current is directly related to the ...
1
vote
3answers
104 views

Controlling DC brushed motor for dummies, please

First, let me explain that I know very little of electronics. Thus, please, forgive me if I am asking something very obvious or abstract. I have tried to Google this but I am obviously not using the ...
3
votes
5answers
174 views

Why to use opto-transistors when controlling a DC motor from a microcontroller?

In the figure(V2 is a DC motor by the way) an isolated way of switching recommended. But what if we use a transistor such as in the figure. Why many say that the motor current would harm the micro ...
0
votes
1answer
121 views

PWM motor controller to switch down voltage on a boat

I'm planning to use a bank of 4 x 12V batteries in series on my boat in order to provide 48V to power an electric DC motor. I also need 12V power for things like lights, fridge, etc. I thought of ...
0
votes
1answer
102 views

Charging 72V battery bank from 15VDC source

Using a constant source I have a DC generator that can produce over 15 volts continually. I have a 72 volt battery bank and another 72v-motor that runs off of that battery bank. How can I best connect ...
0
votes
2answers
104 views

Should I supply a motor with the same current of its stall speed?

I have a DC motor that has a stall speed current of 6 amps. Does that mean I should be supplying a constant current of 6 amps even when the motor is not experiencing a need for that much current?
4
votes
1answer
183 views

How do two DC motors of the same power but for different voltages differ in size?

Suppose I have two brushed DC motors, each rated 3000 RPM and 50 watts. One is rated for 18 volts and the other for 36 volts. How will their sizes differ? I assume that because of higher voltage the ...
0
votes
0answers
131 views

Choosing the correct brake resistor for DC motor

I have a DC motor running on 24VDC rated 150W (~6,25A), how do I calculate the correct brake resistance?
1
vote
1answer
117 views

Which electro motor to use for steering a kite? (guestimation marathon)

I'm doing a pet project in which I want to fly a kite from my computer. For this to happen my plan is to build a little box hanging under the kite which includes a raspberry pi (connected to my laptop ...
3
votes
3answers
430 views

Calculate power supply on distance

I need to provide 12V DC to a DC brushless motors that need 12V 30A at distance of 30m from the source. The cables I can us are 20 Gauge, I know that the cables are loosing power, how can I ...
0
votes
2answers
167 views

Calculate current load for 8 motors

I have 8 DC brushless motors that are connected parallel to a DC source. According to the motor manufacture each motor powered with a 12V DC and need 11A. How can I calculate the the current load of ...
0
votes
2answers
157 views

DC Motor control

I am using a DC 24v scrapped photocopier motor for a table fan. To save energy, it's ON for 2 seconds and OFF for 3 seconds using MCU. The fan keeps rotating during the power off state. Is this a ...
4
votes
2answers
154 views

Do I need to double the voltage with double the motors?

I am totally new to electronics. Let's say I am building a DC circuit with a motor using 6V taking 1.28A. Now, if I build a circuit that uses two of these motors, will I power the circuit with 6V and ...
2
votes
1answer
1k views

Voltage, Ampere and and Ohm of a DC motor

This might be a quite simple question. I have a small DC motor (it seems to be this one). This webpage suggests that it needs 6V. I have a power supply which outputs 6V and writes "0.6A". But when I ...
1
vote
6answers
962 views

dc motor and hung (not stable) pic

I'm running a dc motor using PIC16 family microprocessor. I connect it to my pc, I can send a command to run the motor in certain speed or stop. It works for small motor (3V, 100 mA). But the moment ...
7
votes
2answers
2k views

Methods of filtering noise caused by DC brush motors

I am looking for any information that would help me reduce the power rail noise and EMI of DC brush motors. I am building a robot that is powered by 2 x 250 W 24V DC motors. Thank you in advance