18V DC power supply by 7818

When i want dc regulator power supply 18V 1A.I like this circuit because it is easy to make.
The main parts of the are the IC 7818 and the 1000uf 35V capacitors.
I used the 18VAC 1A transformer,The output of the transformer is rectified by diode 1N4007 or equivalent.
The voltage here is unregulated value 24V to 26V DC.
You must use the IC1 with a suitable heatsink.

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2 Comments

andy cypert March 8, 2014

bilding a wind mill gen get 2vd to 28vdc can i make a unit to get a good stedy rate ov 16vdc up to 10amps no one can see this pasble ???
Jayambika July 21, 2015

I see your 18v power supply circuit. I think you forget about the voltage drop here. coz when u take 18 v AC Transformer it gvs 18 v but what about ic and diode voltage drop and conducting voltage.?pls explain

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