Fermé

Changing from AC to DC and from DC to AC

The sound card cannot output or record dc voltages. Since we are using it as a data acquisition card, this may be necessary in some applications. It is required to design and build electronic circuits that extend the sound card’s capability to dc. On the input, you are to enable the sound card to handle inputs and outputs between −V and V dc. The output must be able to drive a load of 10ohm. Issues to consider are the simplicity of the solution, the accuracy of the system. Additionally, for the output you should pay attention to the power efficiency, and for the input to the purity of the signal (that is the level of distortion).

Basic idea: use 555 timer, amplitude modulator and amplifier. Output of amplifier will be input of sound card. Take output of the soundcard (AC) to Peak Detector, amplifier/scaler, adder, power amplifier and then to load.

Compétences : Génie Électrique, Electronique

Voir plus : power electronic design, peak design, electronic electrical engineering, electrical electronics engineering, electrical electronic, dc design, circuits design, basic electronics engineering, basic electrical electronics engineering, applications electronic engineering, sound engineering, signal system, power electronic, peak to, engineering solution, electronic circuits, electrical system, electrical power, electrical and, detector, dc, data acquisition, amplitude, sound solution, electronic power

Concernant l'employeur :
( 0 commentaires ) Australia

N° du projet : #2345144

5 freelance ont fait une offre moyenne de 276 $ pour ce travail

MikroStar

hi, i can help.

450 $ USD en 30 jours
(53 Commentaires)
6.9
deanosAU

Hi, I can do this for you. I have over ten years designing analog and audio devices.

350 $ USD en 21 jours
(21 Commentaires)
5.7
jedversion

i can do that..

150 $ USD en 10 jours
(1 Commentaire)
0.9
RBlagoev

Hello. I'm an automation engineer with more than 33 years of practice. We are using more chip, effective and accuracy methods than described in your announce for DC/AC and AC/DC conversions. I can use them in your pro Plus

250 $ USD en 7 jours
(0 Commentaires)
0.0
kamranayub1100

electrical engr here to provide solution

180 $ USD en 3 jours
(0 Commentaires)
0.0