A voltage feedback circuit for a liquid crystal display backlight inverter including a plurality of first and second transformers driven oppositely to each other, the voltage feedback circuit including: a first voltage detector detecting a first drive voltage from a first transformer; a second voltage detector detecting a second drive voltage from a second transformer; a peak detector detecting a peak of a voltage detected at a detection connection node at which an output end of the first voltage detector and an output end of the second voltage detector are connected; a voltage adjustor adjusting a peak voltage from the peak detector according to a predetermined voltage ratio; and anerror detector detecting a difference voltage between the detected voltage from the voltage adjustor and a predetermined reference voltage.