Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!cs.utexas.edu!uunet!lll-winken!sun-barr!newstop!sun!sun.com From: david@sun.com ("If you have to ask, then you don't have it.") Newsgroups: sci.electronics Subject: Re: Advice on CD player mods (pwr supply) Message-ID: <127595@sun.Eng.Sun.COM> Date: 8 Nov 89 21:24:46 GMT References: <9705@june.cs.washington.edu> <30864@obiwan.mips.COM> Sender: david@sun.Eng.Sun.COM Lines: 18 In article <30864@obiwan.mips.COM> mark@mips.COM (Mark G. Johnson) writes: >It's usually the case that the circuit can tolerate 250mA more current; >for a 15V supply that's a 60 ohm, 4 Watt resistor. I guess it's obvious that you shouldn't do this unless you can mount the resistor where it won't heat up the CD player guts. >(4) Decoupling capacitors on the regulator output > > These are examples of "if some is good, more is better" brute-force >application. Be sure to check the final design with an oscilloscope >to insure there's no instability or parasitic oscillation. Be sure to a provide discharge diode so you don't mess up your nice regulator when you turn the power off. -- David DiGiacomo, Sun Microsystems, Mt. View, CA sun!david david@eng.sun.com