Tagged Questions
1
vote
3answers
263 views
How do I control a two 12VDC 10A motors using an Arduino?
I am new to arduino and electronics in general but I need some help on a project I am working on. Essentially I want to be able to control the state (on/off) and direction of two linear actuators that ...
0
votes
3answers
138 views
L293D maximum current with heatsink
I saw in datasheet of L293D that maximum current per channel is 650mA. I have two dc motors that draw within that limitation. Most of the time, measured current is ...
3
votes
1answer
200 views
H-bridge output voltage
This my first electronics project and it is based on this project.
I'm using a TI SN754410NE H-Bridge to control 2 small dc motors. I'm using an Arduino UNO for the control signals (USB powered) and ...
2
votes
2answers
273 views
Regenerative Braking circuit
I am reading this great website.
I don't understand the topic #4.
I don't see how the current will flow back to the battery, and how the Q2 enabling changes the circuit. As far as I can see, the ...
0
votes
3answers
460 views
H bridge for PWM
I made a schematic for an h-bridge motor driver that will be connected to a MCU.
Is this schematic correct? I'm not sure if the flyback diodes are working correctly since I added that NPN ...
0
votes
1answer
224 views
Most efficient h bridge to run two DC motors in robotics application
EDIT: I was mistaken about the motors, I actually have a pair of DC motors
I want to construct an h bridge that would allow me to control the servos in a boebot. However, I want to maximize the speed ...
1
vote
2answers
245 views
Can I stack two l293d h-bridge IC's to drive more current?
I need more current but I do not want to change my pcb board so can I piggy back two L293D pin for pin? I am driving dc motors and I am not seeing any gross failures but I am very close to the max ...
0
votes
2answers
387 views
Driving a DC motor forwards and backwards with a PIC
Say I have a DC motor which runs clockwise when current flows in one direction, and counter-clockwise when the current flow is reversed.
I have 2 lines going in my circuit, +5V and ground. I have a ...
0
votes
1answer
419 views
High voltage H-Bridge
Does anyone know about a full H-Bridge chip that can handle input voltages somewhere in the range 80v to 100v with current rating less than 1A?
The reason I'm looking for this is that in our robot ...
5
votes
3answers
1k views
Can I wire the two sides of a L293D Dual H-Bridge together if I only need one H-Bridge?
Background: I'm using an L293D dual H-Bridge to drive a DC motor, but only one motor, and the package contains two complete H-Bridges. This is all being soldered onto Veroboard (stripboard).
...
1
vote
2answers
122 views
Circuit design for controlling 6 individually selectable motors
I need to control 6 of these DC motors from an Arduino. If I needed to control them entirely independently, the obvious choice would be 6 H-Bridges, but I have somewhat relaxed constraints, so I'm ...
1
vote
2answers
558 views
What components do I need to build a motor controller from the L298?
I'm thinking of buying a pair of L298Ns, to control a pair of 1.6A motors. I'd like to control each motor with a signal PWM wire and a direction wire. However, I've hit a couple of problems.
It is ...
