BATTERY OVERCHARGE PROTECTION CIRCUIT

[V.Thenmozhi]

hi sir

 the usb device is just a web cam

 

[V.Thenmozhi]

sir suggest me the radio frequency range that affects

1.humans

2.animals

3.insects

4.Trees

 

And also for mobile phones.

[AJISH ALFRED]

Why?? are you going to design any new kind of weapon???

RF radiation in the range of about 80 and 100 MHz have the worst effect on human tissues. But the result aren’t visible instantly, it will take prolonged exposure to find any significant changes.

[V.Thenmozhi]

No sir it is not a weapon, we are just working to disturb the insects and to drive them away from the trees..

[AJISH ALFRED]

Thats nice.. poor insects!!

I think infrasonic or ultrasonic sound might be more effective on them. If you go for RF, how can you generate that much RF power to disturb the insects? Atleast you will require the RF power output equivalent to that of a mobile tower.

[V.Thenmozhi]

 

sir 

Can u provide the coding for counter in 8051 and aurdino , GSM coding in 8051 and aurdino.The concept is just to count the movement and to send the measured value to particular person through SMS.

[AJISH ALFRED]

Sure, please share the details of the device or circuit that you are using to count the movement.

[huzaifa]

SIR,

what i can do if i want to charge 12 v, 3Amp battery?

vl u plz help me?

[AJISH ALFRED]

Hi Huzifa,

You need to redesign the values of the components in the circuit which I’ve posted earlier.

Better you refer the following circuit

 

wysiwyg_imageupload:6906:

[V.Thenmozhi]

Hello sir

 

 can you suggest the coding for GSM modem simcom 900 for sending SMS using Aurdino board.

[AJISH ALFRED]

Sure. I’m an Arduino lover.

 

Download an Arduino IDE and you can find lot of examples for serial communication. Two important functions are there,

Serial.begin() and Serial.print() for initializing the serial communication at a given baud rate and send characters or string to serial port respectievely.

Learn AT commands first and send the required commands to your GSM module using this functions.

It is very simple.

[V.Thenmozhi]

thank you sir i will see to it..

[richard]

hi all can you use the circuit abv for a cut off over charge on a 12v car battry with a charger as the input????

[AJISH ALFRED]

Hi Richard,

Possible, make sure that your ‘charger’ can give 15-18V DC to the circuit

[calvin towne]

 sir, i need a circuit diagram for a 24v battery charger overcharge protection.this is a 10 amp charger.thanks calvin towne

[Author]

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