Maurizio @ dev.emcelettronica.com discuss about the different aspects of protecting power supplies from overvoltage and overcurrent.
Power processing is one of the most important aspects on electronic design. The power is unique for a typical system because it gives the system life. Before starting to make the project for a power supply we need to analyze some aspects: Which kind of radio/electromagnetic interference is the device going to face ? What about maintenance requirements? And finally which environment conditions (temperature, humidity, vibrations) will the device be exposed to?
Hardware Protection – OverVoltage and OverCurrent – [Link]