Solar tracker having brake function

A solar tracker having a brake function, comprising:

• a horizontal rotation portion which comprises a horizontal driving motor and a horizontal limit control and position sensing circuit comprising first and second horizontal cut-off switches sensing whether a horizontal moving tab horizontally rotating a solar photovoltaic panel comes into contact therewith and horizontally rotates the solar photovoltaic panel;
• an altitude adjustment portion which comprises an altitude adjustment driving motor and an altitude adjustment limit control and position sensing circuit comprising first and second altitude adjustment cut-off switches sensing whether an altitude adjustment moving tab adjusting an altitude of the solar photovoltaic panel comes into contact therewith and adjusts the altitude of the solar photovoltaic panel;
• a horizontal rotation driving portion which supplies driving power to the horizontal driving motor;
• an altitude adjustment driving portion which supplies driving power to the altitude adjustment driving motor;
• and
• a controller which removes driving power to the horizontal driving motor when contact of the horizontal moving tab is sensed at the first and second horizontal contact switches and removes driving power to the altitude adjustment driving motor when contact of the altitude adjustment moving tab is sensed at the first and second altitude adjustment contact switches.