UNINTERRUPTED AND HIGH EFFICIENCY POWER SUPPLY EQUIPMENT WITH POWER FACTOR COMPENSATING AND NO TRANSFORMER USING ECONOMIC MODE

摘要

The present invention relates to a power factor compensation transformerless high efficiency charger inverter device, and more particularly, to a four-leg power factor compensation transformerless high efficiency charger inverter device to which ECO MODE having a bypass circuit is applied. The four-leg power factor compensation transformerless high efficiency charger inverter device to which the ECO MODE according to the present invention according to the present invention is applied includes: an input noise filter 309 for filtering an AC input voltage; A rectifier leg (201) connected in series with said noise filter (309); A battery 111 that charges power in normal times and supplies power with charged energy in an emergency; Connected between the rectifier leg 201 and the battery to charge the battery 111 with a DC voltage rectified by the rectifier leg 201 or to supply a current discharged from the battery 111 to the power system A discharge leg 203; An inverter leg 209 for converting the DC voltage supplied from the rectifier leg 201 or the DC voltage supplied from the battery 111 into an AC voltage; A first thyristor (311) for switching the AC voltage of the inverter leg (209); A first switch 121 for forming a bypass circuit 319 to bypass the power conversion circuit when the input voltage is within a predetermined variation range; A second thyristor (313) connected in series with the first switch to switch AC power; A second switch (123) for connecting the battery to an input voltage such that the battery (111) is charged by an input voltage; An output noise filter 315 connected in series with the second thyristor 313 and the first thyristor 311 of the bypass circuit 319 to remove noise; A third switch connected in series with the output noise filter to turn on or off a power system; When the fluctuation range of the input voltage is within the preset fluctuation range while the overall control is performed, the first circuit 121, the second switch 123, and the second thyristor 313 are turned on to turn on the bypass circuit ( 319 and the control unit 305 for turning on the first thyristor 311 and turning off the second thyristor 313 when the power is passed through the input voltage and the variation range of the input voltage is outside the preset variation range. ; And a display unit 307 for outputting and displaying the set value input by the user according to the instruction of the controller 305.