Small power supply idea that can derive 5V from 220V

Status
Not open for further replies.
L

lats

Full Member level 4
Joined
Oct 27, 2005
Messages
216
Helped
13
Reputation
26
Reaction score
6
Trophy points
1,298
Activity points
2,945
hi all
i am designing a fan speed controller using 2051 and single seven segment display . since the circuit needs to be smalll ,i want to cut short the power supply components.i want to make a power supply using resistance and capacitor ,diode. i want to derive 5 volts from 220volts. can anybody please give me the circuit idea for this power supply.

thanks
 

transformerless power supply 150ma

Use 470uf in series with bridge . need more study for you.
You can go for the battery charger .
What is your current requirement ?
Bcoz battery charger is for 100ma – 150ma.
Charger means mobile charger.
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…