MP2A5060 FUJI ZIP-15 original

MP2A5060 FUJI ZIP-15

In recent years switching power supplies have been required to be not only compact and light weight but also to have low power consumption and a high power factor. A current resonant converter is applied, because it is superior to other topology from the viewpoint of low noise and efficiency. However at light loads efficiency is low and several watts of loss occur even at no load. This means that a sub-power supply is required at standby time which adds to the size of the unit. Fuji Electric has utilized the advantages of the current resonant converter and developed a new multi-oscillated current resonant converter with controllability that allows easy power supply design (control method : combine PWM control and self-oscillated control). The M-Power2A series of special power devices have been developed for the Converter. These multiple-chip power devices incorporate two-MOSFET and a special control IC in one package. When the M-Power2A is used with the multi-oscillated current resonant converter, energy is conserved at standby mode without a sub-power supply. Also when the M-Power2A is combined with a PFC circuit, a switching power supply for high power factors can easily be designed.