Mr. Loud specializes in electrical engineering issues. He addresses issues related to electronic systems including printed circuit board problems, electronic component failures, circuit analysis, and propagating failures. He has investigated numerous incidences involving electrocutions and electric shocks and has also conducted many investigations involving electrical/electronic products that are alleged to have caused fires. His expertise further includes work with lighting products, rotating electric machines, as well as secondary battery systems in the area of lithium ion cell testing and protection systems, NiMH, NiCad, and lead acid charging systems. His test results and recommendations for products using lithium ion cells have been used by many in the portable electronics industry. He has performed fault analysis on electrical distribution equipment, breakers and switchgear. Mr. Loud also has experience with industrial electronic equipment including automated metering equipment, locomotive black-box event recorders, and locomotive control equipment. He is experienced in addressing issues related to electronic manufacturing and service, equipment production, test and circuit board rework and repair. He is also experienced in applying relevant electrical codes and standards including the NEC, NESC, General Orders 95, 128, 165, OSHA, UL, ANSI, etc.
Prior to joining Exponent, Mr. Loud worked for Neta Corporation and Q-Tron Industrial Electronics and worked as a consultant for companies such as General Motors EMD Division, Burlington Northern Railroad, CSX Railroad, and the Atchison Topeka & Santa Fe Railroad.
Loud JD, Hu X. Failure analysis methodology for Li-ion incidents. Proceedings, 33rd International Symposium for Testing and Failure Analysis, pp. 242–251, San Jose, CA, November 6–7, 2007.
Loud JD, Murray SJ, Ray RM, Iyer M, Jackson O. Shock injury risk assessment of portable and handheld appliances and use environments. Proceedings, 57th Annual International Appliance Technical Conference, Rosemont, IL, March 27–29, 2006.
Loud JD, Murray SJ, Caligiuri RD. Failure modes in Calrod-type heaters used in home appliances. Proceedings, 57th Annual International Appliance Technical Conference, Rosemont, IL, March 27–29, 2006.
Loud JD. Vector control of an induction machine. Master’s Thesis, San Jose State University, 1995.
Presentations and Published Abstracts
Loud JD. The science of electric shocks. Guest lecture at Stanford University, 2007, 2008, 2009.
Loud JD. Accelerated stress testing for home appliances. IEEE ASTR Conference, San Francisco, CA, October 2006.
Loud JD. Top ten failures in electronic circuits. Presented to Engineers at Apple Corporation, April 1997 and at Dell Computer Corporation, February 1998.
Loud JD. Electronic case history review—Learn from someone else’s design mistakes. Presented to 300 Engineers at Hewlett Packard Corporation, November 1997.
Loud JD. Safety design of electronic circuits. Presented to IEEE in Austin, TX, February 1998.
Loud JD, Hsu P. Evaluation of vector controlled induction motors as joint actuators for industrial robots. Proceedings, IASTED International Conference Robotics and Manufacturing, Honolulu, HI, August 19–22, 199.
Reports
Loud JD. Compact driver and controller Part II—Vector control. Report for General Electric Nuclear Energy, 1995.
Book Chapters
Loud JD, Blanchard R, Mimmack G. Electronic Failure Analysis Handbook. Chapters 16 and 20, McGraw Hill, January 1999.
Loud JD. Operations and Maintenance of the Datacord 2000 Locomotive Crash Recorder. Manual for Q-Tron Ltd., 1988.