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Article #3639Re: Need help to finalize my circuit
From: Henry Spencer
Date: Wed, 08 Nov 1989 05:38
Date: Wed, 08 Nov 1989 05:38
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In article <10040029@hprmokg.HP.COM> barry@hprmokg.HP.COM (Barry Fowler) writes: >The problem may (or may not) be a result of this. I would look at it >with a 'scope. I have found that the regulators don't regulate running >open circuit. Some type of resistive load could be substituted ... In fact, if you look at the data sheet carefully, regulation is specified over a specific range of currents, and the low end is *not* zero. When powering something like CMOS that may draw nearly zero current at times, one sometimes has to put a resistor across the output to guarantee the minimum load the regulator needs. -- A bit of tolerance is worth a | Henry Spencer at U of Toronto Zoology megabyte of flaming. | uunet!attcan!utzoo!henry henry@zoo.toronto.edu
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Newsgroups: sci.electronics Path: arc1-ca.pugleaf.net!utzoo!henry From: henry@utzoo.uucp (Henry Spencer) Subject: Re: Need help to finalize my circuit Message-ID: <1989Nov8.053847.9348@utzoo.uucp> Organization: U of Toronto Zoology References: <1508@clyde.Concordia.CA> <10040029@hprmokg.HP.COM> Date: Wed, 8 Nov 89 05:38:47 GMT