Power facility for remote control

A semiconductor transformer for remote control, comprising:

• a high-voltage unit that converts an input low-frequency high-voltage AC into a high-frequency high-voltage AC voltage;
• a step-down unit that converts the high-frequency high-voltage AC voltage into a high-frequency low-voltage AC voltage by stepping down the high-frequency high-voltage AC voltage;
• a low-voltage unit that rectifies the high-frequency low-voltage AC voltage, charges the rectified low-voltage DC voltage, and outputs the rectified low-voltage DC voltage;
• an analog sensing value reception unit that collects an internal analog sensing value of the semiconductor transformer;
• a digital conversion unit that converts the analog sensing value into digital information;
• and
• a communication unit that transmits the digital information to an external remote control device by using one optical path,
• wherein the communication unit transmits the digital information with an asynchronous frame,
• wherein the asynchronous frame includes:
• a preamble portion providing synchronous information;
• a control operation portion providing control information;
• a data portion providing the digital information;
• and
• a checksum portion checking an error during transmission of the frame.