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nischo
05-23-2008, 08:36 PM
guys i am completely new to 8051, i want yu to help me out with th power supply circuitary.

debu
05-25-2008, 08:48 AM
@nischo: Welcome to Robotics India!! :)

You should use a 7805 based regulated power supply for your 8051. The circuit should be like:

http://img221.imageshack.us/img221/7400/powercircuitbc8.jpg

Regards,

Debu :)

docel
05-26-2008, 01:49 AM
The correct terminal by-pass capacitors for 7805 should be:
C1= 0.33uFd. + 100uFd
C2= 1uFd tantalum
C3= 0.01uFd (10nFd)
C4= 0.1uFd (100nFd)

The Vpp MUST be >8VDC

itechfreak
12-29-2009, 11:57 AM
I can help you in programming 8051

akshay66
12-29-2009, 01:13 PM
Hi all,
For 8051 you actually need 5v.Try this power supply this gives both 5v & 12v & if you don't want 12v then remove 12v part.Here is the circuit

http://www.8051projects.info/images/power.GIF

aloksaini
09-19-2010, 02:32 PM
thanx akshay u solved my problem also

shobhitkukreti
09-19-2010, 03:09 PM
You should check out the capacitor values provided by docel

ANUJ3482
11-08-2010, 02:06 AM
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