I'm a newbie and want to make a 12VDC regulated power supply to experiment with various LED's combinations. I calculated that for 2.5% ripple, C1 should be a 4700uF 25V capacitor. However, I don't know how to determine what the value of C2 should be or if it is needed at all.
My calculations so far:
Transformer is rated 12vrms @ 500ma 60Hz
VP = (1.414 x 12) - 1.4 = (16.968) - 1.4 = 15.568
Vrip = 0.3892V X 2.828 = 1.10 V
C1 = [ ( 0.5A X 0.00833) / 1.10V] X 1000000 = 3786uF
Any help appreciated.
My calculations so far:
Transformer is rated 12vrms @ 500ma 60Hz
VP = (1.414 x 12) - 1.4 = (16.968) - 1.4 = 15.568
Vrip = 0.3892V X 2.828 = 1.10 V
C1 = [ ( 0.5A X 0.00833) / 1.10V] X 1000000 = 3786uF
Any help appreciated.
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