Changing subject due to rejection Pailoor Message-ID: <36BF0F18.10A3ED72@vsnl.com> Date: Mon, 08 Feb 1999 21:51:44 +0530 From: Ravi Pailoor Organization: Chip Technologies X-Mailer: Mozilla 4.01 [en] (Win95; I) MIME-Version: 1.0 To: pic microcontroller discussion list Subject: Measuring AC volts through PIC ? X-Priority: 3 (Normal) References: <51691EF37C93D21195B9006008C5148C11BE21@SMARTNTS02> Content-Type: text/plain; charset=x-user-defined Content-Transfer-Encoding: 7bit Step down the 115 V through a transformer. Use precision rectifier to convert the AC to DC and feed to PIC. You are lucky, you will be able to get HALF volt resolution, where as we ( in INDIA ) are able to get only 1 volt resolution. Bye Pailoor Andres Tarzia wrote: > I am interested in making an AC volt meter for monitoring the 115V > power > line. > But I don't know how to use the A/D converter, which only accepts DC. > > Can someone suggest a technique to do just that? > > Thank you. > > Regards, > Andres Tarzia > Technology Consultant, SMART S.A. > e-mail: atarzia@smart.com.ar -- Chip Technologies Microchip Design Consultant No. 70, 9th Main Road, Mathikere, Bangalore - 560 054. INDIA Tel : +91-80-3362807 Fax : +91-80-3369451 Email : chiptech@vsnl.com Webpage : http://business.vsnl.com/chiptech