Patent ID: 6408148
Filing Date: 2002-06-18
Classification: G03G,H02M,Y02B

Abstract:
An apparatus comprising:DC power supply means for generating plural DC voltages from a power supplied from an AC power source, said DC power supply means comprising at least one transformer; a load different from said DC power supply means, which is supplied with a power from the AC power source; cutting-off means for cutting off the supply of power at least to the load from the AC power source in accordance with a control signal, the control signal being electrically separated from a primary side of said transformer; and main control means for outputting the control signal to said cutting-off means, wherein, when said cutting-off means is in a cut-off state, one output of the plural DC voltages is stopped without providing means, other than said cutting-off means, for electrically separating the control signal from the primary side of said transformer.