Water supply apparatus and washing machine having the same

A water supply apparatus usable in a washing machine, which has a drum to accommodate laundry and a detergent supply apparatus including a dispenser provided with a plurality of channels to supply water to a plurality of detergents to be supplied to the drum, comprising:

• at least one water supply pipe extending from the rear portion of the washing machine to the detergent supply apparatus to supply water to the dispenser;
• a nozzle provided with one end connected to the at least one water supply pipe and the other end disposed adjacent to entrances of the plurality of channels, and being rotatable to supply water selectively to one of the plurality of channels;
• a drive unit generating drive force to rotate the nozzle;
• and
• a rotation control device to control rotation of the drive unit,
• wherein the nozzle includes:
• one inlet provided adjacent to the at least one water supply pipe such that water is introduced into the nozzle through the inlet;
• and
• one outlet to supply water to one of the plurality of channels,
• wherein the inlet has an area sufficient to cover one end of the at least one water supply pipe so as to allow water supplied from the at least one water supply pipe to be introduced into the nozzle through the inlet, and
• wherein the rotation control device includes:
• a cam connected to the drive unit to be rotated together with the drive unit, and including at least two positioning indicators, and
• a switch disposed to be activated by each of the at least two positioning indicators as the nozzle is rotated, to determine a rotation position of the nozzle.