As statistics of power supply (PS) failures shows the greatest quantity of defects appears in PS secondary circuits. Today the failure of power transistor keys (the most typical PS failure of previous generations) happens extremely rarely that indicates the great success achieved by manufacturers of power semi-conductor electronics for the last 5 years. One of the most problematic elements of modern PS is secondary rectifiers with Schottky diodes, high-speed diodes, that is caused by high output voltage and current of PS. NEON-EK offers high-quality diodes from Silan Microelectronics at low prices. They can also be used in PS for powering LEDs.