l293d motor driver IC help
I am using L293D motor driver for line follower which has the following pin configuration-
In this at Pin no. 8 we have to apply the voltage at which we want to drive the motors, say, 9V. I want to ask that how can we apply that voltage at a single pin when the rest of the circuit is operating at voltage less than 5V.
In this at Pin no. 8 we have to apply the voltage at which we want to drive the motors, say, 9V. I want to ask that how can we apply that voltage at a single pin when the rest of the circuit is operating at voltage less than 5V.
Replies
-
silverscorpionWell, I dont get your question.. What's the problem in giving two different voltages to 2 pins in the same IC??
Pins 1 and 9 (Enable pins) are to be connected to 5V. And pins 8 and 16 are to be connected to the same source
which is used to run the motors. Meaning, if you use 9V to run the motors, connect the pins 8 and 16 to the
+ve of the 9V supply . Ground the -ve of the supply. That's all.. What's confusing here??
Oh, if you're asking how you get 9V into the ckt from nowhere, you can always use a voltage regulator. Get a 7809 and
give 12V from a normal 12V battery to it. It'll regulate it to 9V. Give that 9V to pins 8 and 16. Is it Clear?? ๐๐ -
pratik20990silverscorpionWell, I dont get your question.. What's the problem in giving two different voltages to 2 pins in the same IC??
Pins 1 and 9 (Enable pins) are to be connected to 5V. And pins 8 and 16 are to be connected to the same source
which is used to run the motors. Meaning, if you use 9V to run the motors, connect the pins 8 and 16 to the
+ve of the 9V supply . Ground the -ve of the supply. That's all.. What's confusing here??
Oh, if you're asking how you get 9V into the ckt from nowhere, you can always use a voltage regulator. Get a 7809 and
give 12V from a normal 12V battery to it. It'll regulate it to 9V. Give that 9V to pins 8 and 16. Is it Clear?? ๐๐
Thanks for your help. You have nearly understood my question but I still have some doubt.
I am making the circuit on a breadboard which has AT89S52 IC, L293D IC and 7805 voltage regulator. I am using a 9V battery input to 7805 which converts it to 5V. Now, if I use another 9V battery to directly give input to pin 8 of L293D by its positive terminal then can I ground the negative terminal by just connecting it to ground of that same breadboard. Will the circuit be complete then and will it work?๐
Please reply....๐ -
dossdsssilverscorpionWell, I dont get your question.. What's the problem in giving two different voltages to 2 pins in the same IC??
Pins 1 and 9 (Enable pins) are to be connected to 5V. And pins 8 and 16 are to be connected to the same source
which is used to run the motors. Meaning, if you use 9V to run the motors, connect the pins 8 and 16 to the
+ve of the 9V supply . Ground the -ve of the supply. That's all.. What's confusing here??
Oh, if you're asking how you get 9V into the ckt from nowhere, you can always use a voltage regulator. Get a 7809 and
give 12V from a normal 12V battery to it. It'll regulate it to 9V. Give that 9V to pins 8 and 16. Is it Clear?? ๐๐
i know am replying too late for the post...๐ฒ but it may help to those who need to read it....
actually i want to correct that in l293D
pin8 = that voltage at which you want to drive the motors and
pin16= supply vtg for the chip, that is 5V. not same as pin 16. -
dossdsspratik20990Thanks for your help. You have nearly understood my question but I still have some doubt.
I am making the circuit on a breadboard which has AT89S52 IC, L293D IC and 7805 voltage regulator. I am using a 9V battery input to 7805 which converts it to 5V. Now, if I use another 9V battery to directly give input to pin 8 of L293D by its positive terminal then can I ground the negative terminal by just connecting it to ground of that same breadboard. Will the circuit be complete then and will it work?๐
Please reply....๐
yes the negative terminal of the other battery has to be connected to the ground of the same circuit. -
Anjali27jsir m making a line follower using l293d and atmel 89S52..sir in my coding(embedded c)do i need to mention or define the output of 89s52 in microcntrlr .
You are reading an archived discussion.
Related Posts
When I joined ce
I had not introduce myself
so here is my brief introduction
Myself manish goyal from shaheed Bhagat singh college of engineering..currently pursuing Btech in cse
This...
I want to know ,, what is operating systems' real job in mobiles ??
and how much we need them in mobiles?
Also what we'll miss if the current mobiles...
Today i Listened this...absolutely great
"Earth Song"
What about sunrise
What about rain
What about all the things
That you said we were to gain...
What about killing fields
Is...
Today i try to understand DDOS attacks....SO I would like to share with you what i learn ..seems to very simple but very dangerous
A denial-of-service attack (DoS attack) or...
hello everybody. i'm the new member in this forum.
i wanna ask something about image processing.
i got a project on my college. i want to measurement of human height...