nicd battery charger using common electronic components


Posted on Feb 6, 2014

Since the maximum charge voltage measures 1. 45 volts and higher trigger threshold is about 1. 7 V, this voltage can be adjusted using potentiometer P1 to the value of 1. 45 volts. TTL control signal output by the voltage divider R4/R5, constant current source built with transistor T1, which provides a current of about 48mA. If D1 illuminates, it mea


nicd battery charger using common electronic components
Click here to download the full size of the above Circuit.

ns that the battery voltage is charged. If maximum load of 1. 15 volts is reached, the Schmitt trigger swings, D1 turns off (charging is completed). Since the lower trigger threshold is about 0. 9 volts, every charging cycle must be started by pushing S1 switch. For 1. 2v/1500mAh batteries which are charged with a current of 150mA, R1 must be 5. 6 ohms, R2 = 12 ohms, T1 = 2N2904.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    Photoelectric Sensor Circuit
    headphone circuit
    Simple Phono Preamplifier
    Wien Bridge Oscillator Circuit
    light bulb pcr
    hall effect switch
    An Add-On Current Limiter For Your PSU circuit
    IC Multiplexers
    PSPICE Examples for EE-201
    H-bridge of 40N60 mini-brick IGBTs



    Top