POWER SUPPLY CAPABLE OF SHORTENING DAMPING TIME WHEN POWER OFF

摘要

PURPOSE: A power supply is provided to cut off the power when low voltage and reduce power consumption by shortening a damping time when power off. CONSTITUTION: A power supply for supplying DC power to load comprises a voltage divider(200) and an FET(210). The voltage divider divides DC voltage and generates a predetermined divided voltage. The FET includes a source terminal for receiving the DC voltage, a drain terminal for outputting the DC voltage to load, and a gate terminal for receiving the divided voltage. The FET cuts off the DC voltage supplied to the load when the DC voltage downs under a predetermined range from the rated voltage of the DC voltage.