13 Threads found on edaboard.com: Analog Pulse Width Modulation
Your circuit description sounds like an old fashioned sinewave analog inverter. It probably wastes as much power making heat as its output power.
A modern sinewave inverter uses pulse-width-modulation (PWM) at a high frequency so that the output devices switch completely on and off (then there is very little heat produced) (...)
Analog Circuit Design :: 11-13-2014 10:08 :: Audioguru :: Replies: 5 :: Views: 388
As said you use the PWM output but with a R/C to produce an analogue voltage from the digital 5v
Microcontrollers :: 03-19-2014 07:35 :: wp100 :: Replies: 3 :: Views: 561
This thread seems hanging in the aether connected to nothing.
From what I gather the original OP, whoever that is, wants to convert a PWM signal to an analog voltage. The time-tested method to do that is a low-pass filter, sometimes called an integrator.
Edit: Now, post #1 is visible. It was not before.
Analog Circuit Design :: 03-03-2014 18:28 :: jpanhalt :: Replies: 7 :: Views: 474
I think you will use the 555 as pulse width Modulator and put modulation into pin 5 of the 555,
and yes you could do it with small fm tx/rx or maybe infra red or any analog transmitter from any audio source..just have to couple pin 5 and some level adjustment
Hobby Circuits and Small Projects Problems :: 06-08-2013 09:58 :: dian :: Replies: 4 :: Views: 743
Besides analysing the circuit, the first point would be to check the results against expectable non-linearity according to AD790 specifications, e.g. "propagation delay versus overdrive".
Generally, no analog PWM modulator can be perfect. Please tell your detail results to allow a meaningful discussion. It would be also interesting how you actu
Analog Circuit Design :: 06-19-2012 03:10 :: FvM :: Replies: 27 :: Views: 1422
Yes it is possible. There is also several methods to acomplis this.
You can get an slight overview over different types here.
Microcontrollers :: 09-14-2011 10:33 :: Prototyp_V1.0 :: Replies: 1 :: Views: 493
if you at the Microchip example programs
Microchip Technology Inc. is a Leading Provider of Microcontroller and analog Semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applications worldwide.
you will fi
Microcontrollers :: 05-19-2011 16:36 :: horace1 :: Replies: 1 :: Views: 735
have a look at "pulse width modulation Demonstration for the 18CXXX" on
Microchip Technology Inc. is a Leading Provider of Microcontroller and analog Semiconductors, providing low-risk product development, lower total system cost and faster time to market for thousands of diverse customer applic
Microcontrollers :: 05-07-2011 05:21 :: horace1 :: Replies: 1 :: Views: 1950
Do u want to generate sine wave?
if the answer is yes then there are two different methods of doing it.
one is to use a DAC (digital to analog converter)with a controller and the other one is to use PWM(pulse width modulation) with an RC filter.
Microcontrollers :: 02-11-2007 22:20 :: waseem :: Replies: 6 :: Views: 3086
could u guys tell me
i) advantage of pulse modulation over analog communication such as FM,AM etc...
ii)generally,it is said that pulse modulation occupies more bandwidth when compared to analog modulation it true?if so why?
iii)some discrete (...)
Digital communication :: 01-05-2006 08:23 :: elecs_gene :: Replies: 3 :: Views: 1706
Using a sawtooth signal to generate pulse width modulated signal
where we compare the sawtooth with the input analog signal
if the sawtooth > signal then comparator output = 1 state
if < then comparator output = 0 state
So the comparator output pulse duration depends on the signal sample level
What the (...)
Digital communication :: 12-27-2005 07:29 :: yousif :: Replies: 1 :: Views: 1255
Ring oscillators are often used as part of a PLL for clock and data recovery, frequency synthesis and clock synchronization. Additionally, ring oscillators have both digital and analog features which make them useful for data conversion tasks such as phase and pulse width modulation.
RF, Microwave, Antennas and Optics :: 05-17-2005 02:59 :: vagarwal :: Replies: 2 :: Views: 1109
Please give an example of ?PWM is applied in analog architecture? so I can understand what you mean. Aren't pulses always digital?
Analog Circuit Design :: 08-24-2004 16:00 :: Ante :: Replies: 8 :: Views: 2917