TRIAC-dimmers were originally designed to dim incandescent filament lamps. The elimination of these lamp types increases the need for alternative dimming methods. The use of TRIAC-dimmers in LED-systems causes unwanted flicker, visible to the eye, due to phase modulation. This prevents linear dimmin[more]
This online calculator can be used to translate isolation voltages from DC to AC and between values for 1 second, 1 minute and continuous rating. It also conveniently indicates isolation requirements according to application: general purpose, medical, IGBT and High Voltage or Reinforced.
Try out the Isolation Calculator now.