30 Jun '12, 8pm

How to select power line polarity protection diodes: A major challenge in automotive design is protecting electr...

How to select power line polarity protection diodes: A major challenge in automotive design is protecting electr...

How to select power line polarity protection diodes Soo Man (Sweetman) Kim, Vishay 6/30/2012 3:48 PM EDT A major challenge in automotive design is protecting electronics, such as control units, sensors, and entertainment systems, against damaging reverse voltages, voltage transients, electrostatic discharge (ESD), and noise that are present on the power line. Diode rectifiers are ideal solutions for automotive electronic power line protection and have several important parameters for these applications, including: Forward current, repetitive reverse voltage, forward surge current, and fusing rate. Parameters in automotive electronic equipment test conditions and applications Basic circuits for polarity protection are shown below. Circuit (A) offers polarity protection only, while Circuit (B) features polarity protection with load dump suppression. Following are definitions...

Full article: http://www.eetimes.com/design/automotive-design/4376510/H...

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