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You are here: Home / Replies / Hi Thenmozhi,Its very simple.

Hi Thenmozhi,Its very simple.

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Projects › Projects › BATTERY OVERCHARGE PROTECTION CIRCUIT › Hi Thenmozhi,Its very simple.

September 25, 2012 at 6:30 pm #8611
AJISH ALFRED
Participant

Hi Thenmozhi,

Its very simple. Consider the following section of the ciruit,

wysiwyg_imageupload:6197:

When the battery is charging, the potential at the point X is increasing, and hence the NPN transistor TIP41’s  is getting less forward biased. The resistor 4ohm and 500ohm are so adjusted that when the battery reaches a particular voltage, the NPN forward biasing voltage reaches below cut-off range. At this point the transistor goes to cut-off state and battery charging stops.

I hope this clears your doubt!

 

 

 

 

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