Power supply and a method for supplying direct current to a load

Abstract

A power supply (100) for feeding direct current (IDC) to a load (109) comprises an input voltage terminal (101) for receiving input voltage (VAC), a direct voltage terminal (102) for supplying the direct current (IDC) to the load, an input voltage converter (103) configured to convert the input voltage (VAC) to direct voltage (VDC) of the direct voltage terminal, and a capacitor (104) connected to the direct voltage terminal to respond to beginnings of peak current needs of the load. To respond to continuation sections of the peak current needs of the load, the power supply comprises a super-capacitor (105) and a direct voltage converter (106) between the super-capacitor and the direct voltage terminal and configured to carry out voltage conversion between direct voltage (VDC_S) of the super-capacitor and the direct voltage (VDC) of the direct voltage terminal.

Dependencies are inferred from the claim text.