Lithium battery charging constant current circuit diagram


Posted on Mar 28, 2007

As shown in FIG lithium battery is a constant current charging control board, the figure Q1, R1, W1, TL431 composition precision adjustable voltage regulator circuit. Q2, W2, R


Lithium battery charging constant current circuit diagram
Click here to download the full size of the above Circuit.

2 constitute an adjustable constant current circuit. Q3, R3, R4, R5, LED charging indicator circuit. With a rechargeable lithium battery voltage is gradually increased, the charging current will gradually decrease, decreasing the voltage drop on R4 After the battery is fully charged, and ultimately ended Q3, LED goes out, the battery can in order to ensure adequate, please extinguish lights after 1 to 2 hours to continue to charge, the need Q2, Q3 appropriately sized heat sink mounted when used.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

500mW FM transmitter
Computer Serial Port interface
HV regulator with foldback current limiting
mouse
Amp Monoblock UL
petrol gas switch for pajero
Quick Counter For Young Children
Negative oxygen ion generator 4
SAA1042 stepper motor control circuit
The triangular wave carrier generator circuit diagram
Turning gear from idling stop circuit diagram



Top