Conformal Coating - Understanding environmental classifcations
The benefits of surface mount electronics (SMD) are now well known. SMD provided major cost and size reductions in most electronic equipment. This was largely due to the tiny electronic components being able to be placed on printed circuit board (PCBs) using automated machines with speed and accuracy production managers previously dreamed of. Whilst SMD suited the domestic and consumer goods markets, major weaknesses were identified when these tiny components were exposed to industrial environments. Poor reliability and premature product failure soon began to dog the industrial electronics manufacturing sector and manufacturers took steps to try to replicate the reliability of the earlier plated through-hole electronic PCB technology. This saw insulating materials being applied by largely unscientific means to PCBs e.g. via paint brushes or spray guns, in an endeavour to improve the product’s field reliability – with varying degrees of success. This process was loosely called “Conformal Coating”, but there was no consistency in materials being applied, or the manner of application. Read more »2019 EEA Conference
Power Electronics recently show cased our SVG, Statcom and EV charging solutions at the 2019 Electricity Engineers Association with a lot of interest being shown in our latest technology. Read more »Industrial Motor Control
Increase productivity, reduce power usage, and prevent downtime for your industrial plant. Read more »
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The principles of managing DV/DT in AC variable frequency drives
A typical output stage of an AC variable frequency drive consists of six transistor switches (usually IGBTs) which are turned on and off at a rate varying between 1 – 20kHz. The evolution of the insulated-gate bipolar transistor (IGBT) has meant that the latest generation devices can be turned on from zero to peak voltage in just 0.1 microseconds. This rapid turn has resulted in reduced loses and improved output waveforms but has some major drawbacks such as increased levels of RFI, motor insulation failure and motor bearing failure. Read more »Page 4 of 118