Sep 29, 2011 #1 P protoype1905 Newbie level 1 Joined Sep 29, 2011 Messages 1 Helped 0 Reputation 0 Reaction score 0 Trophy points 1,281 Activity points 1,290 Hi I am high school student I need help in designing led based lamp the requirements are as follows: Design battery charger circuit, it should charge the battery from adapter or solar panel Battery=12v and its capacity should be calculated from load and 4 hrs min run time Charger indication light during charging battery Battery fully charged indication with same light Charging should be started automatically when a person plugs adapter or solar panel. During charging the load should be off Load = 21 LEDs big size 10mm make set of 3 LEDs in series and these sets are in parallel Low battery turn off it should be completely shut down Minimum no. of components.
Hi I am high school student I need help in designing led based lamp the requirements are as follows: Design battery charger circuit, it should charge the battery from adapter or solar panel Battery=12v and its capacity should be calculated from load and 4 hrs min run time Charger indication light during charging battery Battery fully charged indication with same light Charging should be started automatically when a person plugs adapter or solar panel. During charging the load should be off Load = 21 LEDs big size 10mm make set of 3 LEDs in series and these sets are in parallel Low battery turn off it should be completely shut down Minimum no. of components.
Sep 29, 2011 #2 S salmanliaquat Full Member level 2 Joined Feb 21, 2011 Messages 128 Helped 38 Reputation 76 Reaction score 38 Trophy points 1,318 Location Pakistan Activity points 1,908 Hi, you can find many circuits for battery charging and for overcharge or over-discharge protection. I did designed such charging circuit some months ago. I am attaching a file. Hope this would help. Regards, Salman. Attachments AN01 Battery Charger with Protection.pdf 310.3 KB · Views: 84
Hi, you can find many circuits for battery charging and for overcharge or over-discharge protection. I did designed such charging circuit some months ago. I am attaching a file. Hope this would help. Regards, Salman.