Tagged Questions

2
votes
1answer
57 views

what are the en pins (1,2EN and 3,4EN) used for on an SN7544 H-Bridge

I built the circuit from this page and it works just fine but what I don't understand is what the EN pins are for. It says right on his diagram of the pins that you need to connect it to power to run ...
1
vote
3answers
245 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 ...
3
votes
2answers
256 views

Why exactly does Connecting a Motor Directly to an Arduino Damage it?

I understand that you usually need an H-Bridge or some sort of Motor Driver to connect a Motor to an Arduino, as otherwise it will damage it. But why is this, I mean I realize each pin can only ...
0
votes
1answer
223 views

What kind of power supply can power this stepper motor connected to an Arduino?

Stepper Bipolar circut: http://arduino.cc/en/Reference/StepperBipolarCircuit I have this bipolar stepper motor "Stepper motor - 200 steps/rev, 12V 350mA - " which i am connecting to an Arduino. The ...
3
votes
1answer
195 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
1answer
164 views

H-Bridge Drive Power Flowing Up Logic

I'm using an H-bridge (L298n) to actuate two motors, so I've connected up a battery pack to the supply voltage in, to power the motors, and I've connected the logic supply voltage in to the arduino 5v ...
2
votes
1answer
156 views

Arduino loses usb connection

When I connect the 5v power supply of my arduino to my h-bridge the usb connection is dropped and the on LED dims. What is causing this?
1
vote
1answer
75 views

USB connection dropped and “on” LED dims using Arduino + H-Bridge [duplicate]

Possible Duplicate: Arduino loses usb connection When I connect the 5v power to an H-bridge I constructed the Arduino loses its USB connection to my computer and the "on" LED dims. What's ...
0
votes
1answer
513 views

Can L293D be replaced with SN754410NE?

I have a circuit that is set up to run motors using an Arduino and an H-Bridge chip. It works fine with the L293D chip but when I replace it with the SN754110NE chip it stops working. As far as I ...