Bruit alim. a decoupage ?

Do you have a question? Post it now! No Registration Necessary

Translate This Thread From French to

Threaded View
Bonjour,

et avoir le dolby digtal(5.1)


Malheureusement, j'ai un chuintement dans les HP

soucis.






Merci.

--  
Bruno

Re: Bruit alim. a decoupage ?
Quoted text here. Click to load it



ou se diffuse-t'il par rayonnement vers les circuits audio ?
  


Re: Bruit alim. a decoupage ?
Bonjour/Bonsoir   Jean-Christophe
.
Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it






--  
Bruno

Re: Bruit alim. a decoupage ?
Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it













Ton ampli ne consomme certainement pas 4 A en stand-by ?





  


Re: Bruit alim. a decoupage ?
Bonjour/Bonsoir   Jean-Christophe
.
Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it


Quoted text here. Click to load it



Quoted text here. Click to load it

Quoted text here. Click to load it


Quoted text here. Click to load it

Quoted text here. Click to load it




Au repos, les 4 amplis consomment 96mA






--  
Bruno

Re: Bruit alim. a decoupage ?
Quoted text here. Click to load it


Quoted text here. Click to load it


Sur 19 V cela ne fait que 190 mA, il faudrait au moins 2 A.





Quoted text here. Click to load it

Sans ferrite ?

Une alim de PC, c'est pas le top pour de l'audio.

  


Re: Bruit alim. a decoupage ?
Bonjour/Bonsoir   Jean-Christophe
.
Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it


Quoted text here. Click to load it



insupportable pour les oreilles plus jeunes que les miennes, donc
inutilisable.



--  
Bruno

Re: Bruit alim. a decoupage ?

Quoted text here. Click to load it

Quoted text here. Click to load it


Quoted text here. Click to load it

Quoted text here. Click to load it

Bonjour Bruno





trajet est court).


et pas sur la masse distante de l'alim. Sinon il y aura un trajet commun  

signal audio !



Re: Bruit alim. a decoupage ?

Quoted text here. Click to load it

Quoted text here. Click to load it


Quoted text here. Click to load it

Quoted text here. Click to load it



Quoted text here. Click to load it

Quoted text here. Click to load it
Bonjour

Avant ils avaient aussi une THT et des balayages.
Pourtant certains avaient un bon son.
Pour moi tout est dans le filtrage ,le blindage
et d'eventuelles boucles de masse.



Re: Bruit alim. a decoupage ?

Quoted text here. Click to load it

Quoted text here. Click to load it


Quoted text here. Click to load it

Quoted text here. Click to load it



Quoted text here. Click to load it

Quoted text here. Click to load it

Quoted text here. Click to load it

http://fr.wikipedia.org/wiki/Classes_de_fonctionnement_d%27un_amplificateur_%C3%A9lectronique

Re: Bruit alim. a decoupage ?




Transistor oscillation and rectifying converter power supply system U.S.  
... calculator is introduced with transistor switching power supply

1)chapter 1.2 p3 "Integrated Power Devices and TCAD Simulation"
Yue Fu,Zhanming Li,Wai Tung Ng,Johnny K.O. Sin
CRC Press 2014



Re: Bruit alim. a decoupage ?
Bonjour/Bonsoir   bilou
.

Quoted text here. Click to load it

Quoted text here. Click to load it


balayage, et si on monte un minimum le son, on a une ronflette
insupportable (qui ne vient pas du 12V de l'ampli interne)
Cela fait au moins 20 ans que le son passe par la chaine hifi



semble revenu.

--  
Bruno

Site Timeline