Jump to content
ELFORUM - Forumul electronistilor

Sursa cu dioda Zenner

Recommended Posts

Am realizat sursa din atasament , insa am o problema : se incalzeste dioda destul de tare , iar resistenta mai putin . Am claculat valoarea necesara pentru resistenta dupa formula : Rb = Vim - Vz / Ib + Izm , unde Ib = Iom / h21Izm = curentul maxim al zennerului , Vim tensiunea maxima de intrare , Vz tensiunea zennerului , Iom = Curentul maxim cerut , h21 = factorul de amplificare al tranzistorului . Mie rezultatul calculului mi - a iesit 27,422 , iar eu am ales o rezistenta cu valoarea de 27 de ohmi . Va rog sa ma ajutati .

Link to comment
  • Replies 3
  • Created
  • Last Reply

Top Posters In This Topic

Popular Days

Top Posters In This Topic

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Unfortunately, your content contains terms that we do not allow. Please edit your content to remove the highlighted words below.
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.Terms of Use si Guidelines