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Article #20395Looking for isolated DAC chip
From: Brian Kantor
Date: Fri, 13 Jan 1989 15:34
Date: Fri, 13 Jan 1989 15:34
15 lines
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963 bytes
I've got 7 or 8 bits of TTL on a latch output that specify a lamp brightness level, and I want to control a TRIAC or other simple light-dimmer circuit with it. The idea is to have a microprocessor control a lighting panel. I've seen some somewhat complex circuits involving optoisolators and time ratio controls, but I'm looking for a simple circuit (i.e., a complex chip is just fine, but the amount of glue needed to use it has to be small). I'd like to control about 1 to 15 amps at 120 VAC per instance. Suggestions? My usual reference books haven't been very helpful. Brian Kantor UCSD Office of Academic Computing brian@ucsd.edu ucsd!brian BRIAN@UCSD
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Path: arc1-ca.pugleaf.net!utzoo!attcan!uunet!lll-winken!ames!ucsd!brian From: brian@ucsd.EDU (Brian Kantor) Newsgroups: sci.electronics Subject: Looking for isolated DAC chip Message-ID: <1378@ucsd.EDU> Date: 13 Jan 89 15:34:15 GMT Organization: The Avant-Garde of the Now, Ltd. Lines: 15