555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

7
Favorite
124
copy
Copy
20671
Views
555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Circuit Description

Graph image for 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Circuit Graph

This is one variant of Pulse Width Modulator using the 555 timer. This circuit configures the 555 in monostable multivibrator mode periodically triggered by a rectangular signal. Control of the period of the monostable pulse is through the voltage applied to the timer's CONTROL pin. The 10 kOhm modulation resistor attenuates the modulating signal by a factor of 4. When the modulating signal is at 0 V, the control voltage is at one half the supply voltage (Vcc/2). For a +Vcc/-Vcc modulation signal the control voltage varies between Vcc/4 and 3Vcc/4. Currently the carrier signal is set to 87.5% duty cycle so that a narrow pulse (the remaining 12.5%) will be applied to the TRIGGER input of the 555. This prevents high frequency oscillation from occurring when the timing capacitor voltage is near the control voltage. When the carrier has a large space width, the true solution is to employ an RC differentiator in the TRIGGER input of 555. My objective is for this circuit to be opened and simulated in Free Subscription version of Multisim Live, due to Components per circuit limitation, I simply used the trick above to make the circuit work.
Another schematic with wrong pinouts.
Profile image for Sundaresvar

Sundaresvar

1 favorites
Profile image for antarasingh

antarasingh

4 favorites
Profile image for Bolu1942

Bolu1942

2 favorites
Profile image for JoanSavallGirau

JoanSavallGirau

6 favorites
Profile image for amysis

amysis

2 favorites
Profile image for КГТУ

КГТУ

1 favorites
Profile image for ec.zala

ec.zala

3 favorites
Profile image for someshan55

pulse width modulation

someshan55
Profile image for Manyu

Pulse Generator using 555 Timer IC

Manyu
Profile image for zask99999

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

zask99999
Profile image for estrella.cedrickjhon

Pulse Width Modulation

estrella.cedrickjhon
Profile image for riesse

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

riesse
Profile image for PedroAraujo

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

PedroAraujo
Profile image for Arvie27

PWM

Arvie27
Profile image for neeraj_yadav

PPM

neeraj_yadav
Profile image for tharun11

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

tharun11
Profile image for aakanksha14

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

aakanksha14
Profile image for engmgs

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

engmgs
Profile image for avaris

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

avaris
Profile image for jsbullock47

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

jsbullock47
Profile image for RockyTeklu2

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

RockyTeklu2
Profile image for smurftrooper

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

smurftrooper
Profile image for dhyey777

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

dhyey777
Profile image for tharun11

EC17b1011

tharun11
Profile image for khup

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

khup
Profile image for jdbarn11

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

jdbarn11
Profile image for oguzhan123

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

oguzhan123
Profile image for thadeuseixas

555 modulador dute cicle

thadeuseixas
Profile image for hmoazzam

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

hmoazzam
Profile image for mediterraneo

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

mediterraneo
Profile image for abhi1441

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

abhi1441
Profile image for khup

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

khup
Profile image for GerardoPB

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

GerardoPB
Profile image for marines2020

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

marines2020
Profile image for arpitgautam4

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

arpitgautam4
Profile image for Micaelov

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Micaelov
Profile image for CainChen21

Pulse Width Modulator with voltage controlled duty cycle

CainChen21
Profile image for M0tasem

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

M0tasem
Profile image for james__bayona

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

james__bayona
Profile image for JakobBernoulli

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

JakobBernoulli
Profile image for andresramos95

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

andresramos95
Profile image for Adi_123

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Adi_123
Profile image for Yash1999

pwm

Yash1999
Profile image for Menaka91

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Menaka91
Profile image for macatangayjnl

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

macatangayjnl
Profile image for dhanujashi

555 timer

dhanujashi
Profile image for vibz_9

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

vibz_9
Profile image for ToniAliu

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

ToniAliu
Profile image for anuantonykv

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

anuantonykv
Profile image for Escanor14

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Escanor14
Profile image for jaguilarpena

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

jaguilarpena
Profile image for James3215

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

James3215
Profile image for 19106003Aditi

Pulse Width Modulator

19106003Aditi
Profile image for sharmiamcphysics17

555 Pulse Width Modulator (simple)

sharmiamcphysics17
Profile image for Harishkumar111

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Harishkumar111
Profile image for PauloJorgeÁguas

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

PauloJorgeÁguas
Profile image for martinzigon

555 pulse width modulator (voltage controlled duty cycle)

martinzigon
Profile image for Tsquared1244

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Tsquared1244
Profile image for DiegoSor

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

DiegoSor
Profile image for Bill_Evans_jazz

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Bill_Evans_jazz
Profile image for Gaurav2002

IC 555

Gaurav2002
Profile image for jazper04

PWM - Lighting Control

jazper04
Profile image for vasanth37

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

vasanth37
Profile image for vasanth37

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

vasanth37
Profile image for vasanth37

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

vasanth37
Profile image for Gowtham123

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Gowtham123
Profile image for Nikita12

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Nikita12
Profile image for ansari12

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

ansari12
Profile image for nathan2003

555

nathan2003
Profile image for rona_esperanza

Pulse Width Modulator

rona_esperanza
Profile image for nikniknik2000

monostable multivibrator using 555 timer - 3

nikniknik2000
Profile image for Neh1211

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Neh1211
Profile image for vasanth37

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

vasanth37
Profile image for peytme

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

peytme
Profile image for manasi08

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

manasi08
Profile image for ChesterNeil27

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

ChesterNeil27
Profile image for simul

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

simul
Profile image for Lgarcia-ramirez

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Lgarcia-ramirez
Profile image for Aarmi

7 a) Monostable multivibrator

Aarmi
Profile image for Guido_Humberto

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Guido_Humberto
Profile image for laksh01*

555 Pulse Width Modulator

laksh01*
Profile image for zeel7535

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

zeel7535
Profile image for Imad28

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Imad28
Profile image for gonzalesxyrone

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

gonzalesxyrone
Profile image for TINNI2021

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

TINNI2021
Profile image for Wycliffe28

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Wycliffe28
Profile image for Monayeem

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Monayeem
Profile image for vishakha03

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

vishakha03
Profile image for Vinodhini118

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Vinodhini118
Profile image for Anusha06

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Anusha06
Profile image for Rushi_Suryagandh

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Rushi_Suryagandh
Profile image for Gowtham123

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Gowtham123
Profile image for TERRACINO

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

TERRACINO
Profile image for Ionescu.Georgian

Modulator de latime a pulsului Tema

Ionescu.Georgian
Profile image for Anusha06

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Anusha06
Profile image for abhishek.kr_27

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

abhishek.kr_27
Profile image for S@rika

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

S@rika
Profile image for tuhi841

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

tuhi841
Profile image for johanvv

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

johanvv
Profile image for Ashankop

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Ashankop
Profile image for Gowtham123

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Gowtham123
Profile image for BVUCOEP_ECE

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

BVUCOEP_ECE
Profile image for sannat

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

sannat
Profile image for jinglei

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

jinglei
Profile image for Baby@2022

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Baby@2022
Profile image for zfish

Current Pulse

zfish
Profile image for jisaacso

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

jisaacso
Profile image for jinglei

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

jinglei
Profile image for Rk25601611

monostable multivibrator

Rk25601611
Profile image for Anarx

Анаркс

Anarx
Profile image for Saksham13694

Pulse Width Modulator

Saksham13694
Profile image for Hari@03

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Hari@03
Profile image for Chaklino

AS555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Chaklino
Profile image for apchi

apchi66

apchi
Profile image for Toietoie

PWM

Toietoie
Profile image for Lapenko

Lapenko 7

Lapenko
Profile image for timurlitisachery

qwerty

timurlitisachery
Profile image for CitlalliAG

clase 09

CitlalliAG
Profile image for Radmir00070

13

Radmir00070
Profile image for sharad2011

555 Sharad

sharad2011
Profile image for khalid241

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

khalid241
Profile image for SasiNila

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

SasiNila
Profile image for Kumar1510

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

Kumar1510
Profile image for ravi_lab

FM Modulator and Demodulator

ravi_lab
Profile image for Unopuncho

Voltage Doubler

Unopuncho
Profile image for esha88

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

esha88
Profile image for WUXUEJUN

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

WUXUEJUN
Profile image for user-139104

Copy of 555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

user-139104
Profile image for user-56510

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

user-56510
Profile image for balwindersdhaliwal

555 Pulse Width Modulator (Voltage Controlled Duty Cycle)

balwindersdhaliwal
Profile image for private copy

Private Copy

Electronica Básica-UAC
1 Members

Creator

GGoodwin

1116 Circuits

Date Created

7 years ago

Last Modified

7 years ago

Tags

  • 555 timer
  • circuit fundamentals
  • 555 timer circuits
  • 555 timer applications
  • 555 monostable multivibrator applications
  • 555 pulse width modulator
  • 555 monostable multivibrator
  • 555 voltage controlled duty cycle