An 8051 Based Temperature Controlled Fan project

PWM is Pulse width modulation.. it helps you to control the output voltage by varying the width of a square wave pulse..

A Brief Description:

|¯¯|__|¯¯|__|¯¯|__ --->
 A square wave

|¯¯¯¯¯¯|______
<-Ton->
<-Tof->
.
<---Ttotal--->


Ttotal = ton+toff

Duty cycle d = Ton/Ttotal

if Vin is the input voltage and Vo is the o/p voltage.. then

Vo = d x Vin
where d is the duty cycle..
now if we ... Read Compelte post
Other Tags: pulse width modulation   PWM   8051 PWM code   
Posted by ajay_bhargav on Mon Aug 20 2007, 08:45 AM

RS232 Simulation?

actually speed of DC motor changes when you change the voltage of motor... and in digital world this is done with the help of Pulse width modulation.
So i think you should see this for learning about PWM.
I have no idea whether x86 processors have timers or not.. if not then it will be difficult to generate PWM, or you have to make use of some external thing to generate PWM.
Please go through this to... Read Compelte post
Other Tags: pulse width modulation   PWM   
Posted by ajay_bhargav on Thu Jan 17 2008, 01:30 AM

Pulse Width Modulation Tutorial

Pulse Width Modulation tutorial



Introduction to PWM
The theory behind pulse width modulation
and its working.


8051 PWM Example
Implementation of PWM on normal 8051
using timers, along with sample code.


AVR PWM Example
Using timers of AT90S8515 in 8-bit PWM
mode with non-inverting o/p, with sample code.

... Read Compelte post
Posted on Mon Feb 18 2008, 03:55 PM

An 8051 Based Temperature Controlled Fan project

I think there is some problem with the attachment of file.. i need to check that..
By the time.. please try to paste the code..

here is a sample PWM code.. check it..
... Read Compelte post
Posted by ajay_bhargav on Thu Aug 30 2007, 09:05 AM

Untitled

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Posted by on Wed Dec 31 1969, 07:00 PM

Conversation

scena
Tue May 19 2020, 06:29 PM
Does anyone have microcontroller programming software for STC15F104W (core 8051, 4 k, 128 byte, 6 I/O pin, UART ... DIL8), that works?
Sat May 02 2020, 03:38 PM
Tamu Gurung
Hi I am looking for a assembly language program for a digital decimal counter. Time counts max limit of 2 mins starting from 2.00 mins and ending at 0.00. time is to be displayed on 4 7-segment LED displays. Edsim51 simulator to be used. Thanks
Wed Mar 25 2020, 09:39 AM
Tajammul
Sir kindly send the code file i2c for 8051
ExperimenterUK
Fri Mar 13 2020, 06:36 PM
@ Rohitnani,ABEBE..which project ?
Fri Mar 13 2020, 08:55 AM
ABEBE
how can get hadwere of this project
Rohitnani
Sat Mar 07 2020, 12:11 PM
Sir, Could you please send me the zip file input password....
Wed Feb 26 2020, 11:58 AM
Peter Parker
Is it possible to send multiple messages using only 1 GSM module?
Sat Feb 01 2020, 05:12 AM
Pearl Olin
Hello,
Wed Jan 22 2020, 01:16 PM
MINU CHAUDHARY
I m getting errors while simulation process during interfacing socket output and lcd... Can i get the report of ur project which is same as us.
Tue Jan 14 2020, 02:08 AM
shubham kharade
when i am trying to simulate the program in Proteus 8 professional, I am getting some errors as cannot find module file dhtxx.md can u help me

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Davidthils
Thu May 21 2020, 08:44 AM
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motorCar
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Wed May 20 2020, 03:15 AM
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