URL https://www.researchgate.net/profile/Paulo-Moreira-2/publication/237680573/figure/fig8/AS:669461849858073@1536623551705/Normalised-input-voltage-range-as-a-function-of-the-normalised-voltage-drop-across-the.jpg
URL2 https://www.researchgate.net/figure/Normalised-input-voltage-range-as-a-function-of-the-normalised-voltage-drop-across-the_fig8_237680573
