Water purifier

A water purifier, comprising:

• a housing;
• a water treatment module arranged within the housing and configured to process raw water to produce purified water;
• a controller arranged within the housing and supplied with external power to control operation of the water treatment module,
• wherein the controller comprises:
• a power supply positioned on a first side portion of the water treatment module and configured to convert AC power into DC power;
• a first board arranged on a second side portion of the water treatment module and configured to have a bridge circuit to branch out a portion of the external power and supply the AC power to the power supply;
• an external power line entering from outside of the housing to one side of the housing adjacent to the power supply and configured to be connected to the first board to supply the external power to the first board;
• and
• an AC power line extending from the first board and configured to be connected to the power supply to transmit the AC power to the power supply,
• wherein the external power line is configured to extend along a first side of the water treatment module,
• wherein the AC power line is configured to extend along a second side of the water treatment module, which is different from the first side, and
• wherein the AC power line is configured to be spaced apart from the external power line by a predetermined interval or more.