Jump to content
ELFORUM - Forumul Electronistilor
Sign in to follow this  
aygun

Incarcator pentru li-ion 3,7v 2200mAh

Recommended Posts

Salutare tuturor.Imi puteti recomanda o schema simpla de incarcare pentru acest tip de acumulator ?Din pricina unor fluctuatii de tensiune sa ars incarcatorul sau original.Am nevoie de ceva simplu si eficient. Fara prea multe briz-brizuri.Multumesc

Share this post


Link to post
Share on other sites

Clasica schema cu LM317.Limitare de tensiune la 4,2V (in nici un caz mai mult!) si limitare de curent pe la 0,5-1A.Cam asa arata schema: viewtopic.php?p=1443233#p1443233 . Asta e pt 8,4V/0,65mA, deci trebuie modificate niste piese. Si o rez in baza lui Q1.

Share this post


Link to post
Share on other sites

In caz ca vrei sa folosesti un circuit specializat in incarcarea-monitorizarea unui Li-ion/Li-Po poti sa te inspiri de aici: http://www.sonsivri.to/forum/index.php?topic=54683.0.

 

Daca nu ai cont acolo, iti pot da linkul la arhiva cu proiectul complet. Proiectul este dezvoltat cu un alt coleg forumist de pe Elforum.

 

PIC-ul nu-i necesar decat daca vrei afisare pe LCD la tensiuni, sfarsit de ciclu de incarcare. Altfel, MCP face toata treaba.

Share this post


Link to post
Share on other sites

sau cu MCP 73831 si/sau 73841 depinde ce ce curent doresti sa ai la incarcare ,cu schemele de catalog de pe alldatasheet.comsau ceva de aici

Share this post


Link to post
Share on other sites

Folosesc de multa vreme acest incarcator si sunt multumit de el

post-33007-139829745547_thumb.gif

post-33007-139829745548_thumb.jpg

Share this post


Link to post
Share on other sites

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.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  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.

Sign in to follow this  

×
×
  • 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.