piclist 1998\10\03\215639a >
Thread: 230VAC->5Vdc without transformer
face BY : aureo@@spam@xtra.co.nz

I would like to build a a 5V d.c. power supply for a PIC derived from
the mains supply of 230V A.C. with out using a transformer.

Currently my only idea is to use a couple of 5W ceramic resistors in
series across the mains supply as a voltage divider and use this to
supply a bridge rectifier / three terminal regulator circuit.

Is there a better or more efficient way of obtaining 5V d.c. with a
small compact circuit?

Seth Fischer

<3616D25E.B20E5A9@xtra.co.nz> 7bit

See also: www.piclist.com/techref/power.htm?key=transformer
Reply You must be a member of the piclist mailing list (not only a www.piclist.com member) to post to the piclist. This form requires JavaScript and a browser/email client that can handle form mailto: posts.
Subject (change) 230VAC->5Vdc without transformer

month overview.

new search...