http://www.isnare.com/?s=author&a=Bob+Preville Computers and Technology Bob Preville Thu, 15 Apr 2010 00:00:00 +0800 http://www.isnare.com/?aid=503572&ca=Computers+and+Technology There are many types and designs of power supplies. This article will describe what is commonly known as a switching power supply, sometimes referred to as a switched mode power supply (SMPS), or 'switcher'. All electronic circuits require a voltage source in order to operate. In the United States,... Computers and Technology Bob Preville Thu, 08 Jan 2009 00:00:00 +0800 http://www.isnare.com/?aid=337173&ca=Computers+and+Technology Several months ago, I wrote an article titled “Thermal Imaging Cameras Offer Economical Solutions for a Variety of Diagnostic applications”. Since then I have learned quite a bit more about the type of applications which thermal imaging is being applied. With an entry point of $3,000, one camera in... Computers and Technology Bob Preville Tue, 30 Sep 2008 00:00:00 +0800 http://www.isnare.com/?aid=300856&ca=Computers+and+Technology With the introduction of a new breed of low cost thermal imaging cameras, thermal imaging technology is now an effective problem solving, analysis and preventive maintenance tool for a variety of applications. Thermal imaging cameras are light weight, ergonomic, intuitive and contain high resolution... Computers and Technology Bob Preville Thu, 20 Mar 2008 00:00:00 +0800 http://www.isnare.com/?aid=234549&ca=Computers+and+Technology If you think viewing signals is the 1st order value of an Oscilloscope, think Rigol! The vast majority of oscilloscope users are primarily concerned with how a scope "displays" signals. RIGOL Technologies, who is new to the North American market and is capturing unprecedented market share, has addre... Computers and Technology Bob Preville Mon, 23 Jul 2007 00:00:00 +0800 http://www.isnare.com/?aid=169591&ca=Computers+and+Technology The reliability and cost of any electrical system depends greatly on the quality of the power supplied to and consumed by the system. Poor power quality may result in improper function, overheating, accelerated wear and tear, falsely tripped circuit breakers and, in some cases, hazardous conditions.... Computers and Technology Bob Preville Wed, 13 Sep 2006 00:00:00 +0800 http://www.isnare.com/?aid=84281&ca=Computers+and+Technology Every electrical technician knows the difference between DC (Direct Current) and AC (Alternating Current). Every electrical technician also realizes the importance of taking accurate current measurements to protect conductors from exceeding their insulators' ability to withstand heat or assuring dev... Computers and Technology Bob Preville Sat, 06 May 2006 00:00:00 +0800 http://www.isnare.com/?aid=50806&ca=Computers+and+Technology According to the research firm Frost and Sullivan, the estimated size of the North American used test and measurement equipment market was $446.4 million in 2004 and is estimated to grow to $654.5 million by 2011. For over 50 years, companies and governments have procured used test and measurement i... Computers and Technology Bob Preville Sun, 16 Apr 2006 00:00:00 +0800 http://www.isnare.com/?aid=46640&ca=Computers+and+Technology The DC Power Supply is a rather fundamental electronic device, however there are hundreds of DC Power Supply products on the market from dozen of manufacturers. Narrowing down the best product for your application and budget can be a daunting task. This article addresses DC Power Supply differentiat...