US 12,278,568 B2
Power facility for remote control
Byeng Joo Byen, Suwon-si (KR); and Byung Hwan Jeong, Gwacheon-si (KR)
Assigned to HYOSUNG CORPORATION, Seoul (KR)
Appl. No. 17/623,153
Filed by HYOSUNG CORPORATION, Seoul (KR)
PCT Filed Jun. 14, 2021, PCT No. PCT/KR2021/007407
§ 371(c)(1), (2) Date Dec. 27, 2021,
PCT Pub. No. WO2021/256809, PCT Pub. Date Dec. 23, 2021.
Claims priority of application No. 10-2020-0074340 (KR), filed on Jun. 18, 2020.
Prior Publication US 2022/0271678 A1, Aug. 25, 2022
Int. Cl. H02M 3/335 (2006.01); H02M 1/00 (2006.01)
CPC H02M 3/33576 (2013.01) [H02M 1/0003 (2021.05)] 6 Claims
OG exemplary drawing
 
1. 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.