Page 136 - The Art and Science of Analog Circuit Design
P. 136

James i, Bryant




                                                                           Figure 9-24.



                   Generate noise at every frequency under the
                     Sun (and some interstellar ones as well).

                   Every mode of noise transmission is present.


                  If you must use them you should filter, screen,
                    keep them far away from sensitive circuits,
                                    and still worry!




        development, however, it is interesting (and frightening, and helpful) to
        replace the switching supply with a battery and observe the difference in
        system performance.
                                                                           Figure 9-25,






            Unexpected behaviour of analog circuitry is almost always due to the
                  designer overlooking one of the basic laws of electronics.
                 Remember and obey Ohm, Faraday, Lenz, Maxwell, Kirchoff
                                         and MURPHY.


                              "Murphy always was an optimist" - Mrs. Murphy.








            Robert A. Pease, Troubleshooting Analog Circuits (Butterworth-Heinemann, 1991).
            Wainwright Instruments Inc., 7770 Regents Rd., #113 Suite 371, San Diego, CA
            92122 (619) 558 1057 Fax: (619) 558 1019.
            WMM GmbH, Wainwright Mini-Mount-System, HartstraBe, 28C, D-82346
            Andechs-Frieding, Germany, (449)8152-3162 Fax: (+49)8152-4025.











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