Abstract: A multi-lamp driver driving first and second lamps and comprising a driving circuit and a transformer. The transformer comprises a winding rack, a magnetic core, two primary winding sets, and two secondary winding sets. One portion of the magnetic core is inserted into the winding rack. The two primary winding sets are wound around the winding rack and receive low-voltage signals from the driving circuit. The two secondary winding sets are wound around the winding rack, and two high-voltage signals are induced to respectively drive the first and second lamps. The primary winding sets have substantially the same number of windings, and the secondary winding sets have substantially the same number of windings.

Abstract: A leakage control circuit and DRAM equipped therewith. The leakage control circuit includes a differential amplifier, a first voltage divider, a second voltage divider, MOS transistors, and a charge pump. The first voltage divider generates a first reference voltage. The second voltage divider generates a second reference voltage. The differential amplifier has a first input receiving the first reference voltage, a second input receiving the second reference voltage, and an output coupled to the input of the charge pump. MOS transistors have drains coupled to the first input of the differential amplifier, gates coupled to the output of the charge pump, and sources coupled to a ground potential.