මචන්ලා මට කියනවද 12 වෝල්ට් battry එකකින් 9 volt ගන්න ක්රමයක්.එක නිකන් resister එකක් හරහා දුන්නහම ඇතිද.මට කරන හැටි කියන්නකෝ
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koko account
- DasunEranga
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koko account
- DasunEranga
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12 volt
- Thread starter scooby dooo
- Start date
macho meka cirkit ekakata machan ekata 9v thama denna kiyala thiyenne mata one van ekata eka set karanna battry eka 12 volt ne
Lots of ways...
*Power Pack ekakin denna!
*Transformer ekakin puluwan (Awakara parinamakayak - 12 to 9 volt)
*Naththam Vibava badhakayak hadala denna puluwan!
etc
AL physics valata uganvanavane!
dan mathaka na ban mata one van ekata hi karanna e cirkit ekata one 9 volt ganna lesi kramayak one machoo
Oppz DC current ne! Battery ne! 
Okay Members dennek kiyala thibbe kramaya thama lesima!
Si-Diode 5k ganna!
Kadeta gihin illuvama dei
Battery eke + agrayata Diode 5 series fix karanna! (ekakata passe ekak ,ekama paththata)
If you dont understand this!
Buy a DC to DC converter!
http://www.powerstream.com/dc6.htm
Okay Members dennek kiyala thibbe kramaya thama lesima!
Si-Diode 5k ganna!
Kadeta gihin illuvama dei
Battery eke + agrayata Diode 5 series fix karanna! (ekakata passe ekak ,ekama paththata)
If you dont understand this!
Buy a DC to DC converter!
http://www.powerstream.com/dc6.htm
It's easy.. Want 2 resistors. 1 ohm and 3 ohm.. or any two resistance with resistance ratio between them should be 1:3 ..
Now connect those two resistors in series with battery. now you can get 9V buy connecting the bulb or what ever the thing parallel with 3 ohm resistor,
Better to use a variable resistor for 3 ohm resistor.
If you know the resistance of the item you use, then this can be done with a single resistor too.
Now connect those two resistors in series with battery. now you can get 9V buy connecting the bulb or what ever the thing parallel with 3 ohm resistor,
Better to use a variable resistor for 3 ohm resistor.
If you know the resistance of the item you use, then this can be done with a single resistor too.
Transformer ekakin ba machn..
Battery supply DC current. Should supply AC current to transformer. so it doesn't work that way..
machn VAN ekaka voltage eka 14.4V DC,battery eka 12V unata wahane yana kota power ganne alternator eken,eka 14.4V,so voltage eka 12-14.4V atha wenas wenna puluwn welawe hatiyata,so umba diode ehema dala oka adu karanna yanna epa,hondama wade Regulated power supply ekakin dena eka,ara man dunna 7809 kiyana eka dapan e widiyata,Rs20k 30k wenne
aulk tiyenwanm ahapn
