Patent ID: 7378823
Filing Date: 2008-05-27
Classification: H02J,H02M

Abstract:
1. A multi-output type DC/DC converter for generating, from an input voltage, a plurality of output voltages, the converter comprising: a switch circuit to supply the plurality of output voltages to a plurality of loads corresponding thereto, the switch circuit comprising a main switch and an inductor, wherein when said main switch is turned on, a current flows in said inductor to accumulate magnetic energy in said inductor, and the main switch being turned on for a given ON time interval in each of a plurality of time slots to supply the output voltages; and a controller which controls the ON time interval to be the same in each of the time slots in a steady state, in which a weight of said plurality of loads does not change, without reference to respective weights of said plurality of loads, wherein said controller changes the ON time interval in accordance with the weight of said plurality of loads in a transient state in which the weight of said plurality of loads changes, and wherein said controller determines a frequency at which the time slots are assigned to each of the loads in accordance with power to be supplied to each of the loads.