Patents

[1] "High-efficiency integrated power circuit with reduced number of semiconductor elements and multiple output ports", Park, J. E., Han J. K., United States - Registration No. 12237759 (2025.02.25) 

[2] "Integrated DC/DC and AC/DC converter system", Park, J. E., Moon, G. W., Bae, J. H., Kim, T. W., United States - Registration No. 11824435 (2023.11.21) 

[3] "AC-DC converter circuit system and method of designing AC-DC converter circuit system", Park, J. E., Choi, S. H., United States - Registration No. 11742773 (2023.08.29) 

[4] "Wireless power transmitter and method of wireless power transmission", Gwak, B. S., Seo, J. K., Park, J. E., Europe - Registration No. 02822141 (2019.02.20)

[5] "Wireless power transmitter and method of wireless power transmission", Gwak, B. S., Seo, J. K., Park, J. E., United States - Registration No. 09831030 (2017.11.28)

[6] "Electronics device, electric vehicle and wireless electric power transmission device", Chae, B. S., Park, J. E., Jeong, K. H., Seo, J. K., Jung, B. S., United States - Registration No. 09821672 (2017.11.21)

[1] "Converter circuit integrated with two-switch flyback converter and buck converter and method of controlling the same", Park, J. E., Han J. K., South Korea - Registration No. 10-2857545-0000 (2025.09.10)

[2] "AC-DC converter with integrated bridgeless PFC converter and phase-shifted full-bridge resonant DC-DC converter", Park, J. E., South Korea - Registration No. 10-2664416-0000 (2024.05.02)

[3] "High-efficiency integrated power circuit with reduced number of semiconductor elements and control method thereof", Park, J. E., Han J. K., South Korea - Registration No. 10-2608668-0000 (2023.11.28)

[4] "Power system with high efficiency maximum power point tracking control algorithm", Park, J. E., South Korea - Registration No. 10-2495089-0000 (2023.01.30)

[5] "AC-DC converter with integrated bridgeless PFC converter and resonant DC-DC converter", Park, J. E., South Korea - Registration No. 10-2473161-0000 (2022.11.28)

[6] "Power supply apparatus for extending hold-up time", Park, J. E., Park, M. H., South Korea - Registration No. 10-2467961-0000 (2022.11.14)

[7] "AC/DC converter circuit system, and operating method of AC/DC converter circuit system", Park, J. E., Choi, S. H., South Korea - Registration No. 10-2387123-0000 (2022.04.12)

[8] "Integrated DC/DC and AC/DC converter system", Park, J. E., Moon, G. W., Bae, J. H., Kim, T. W., South Korea - Registration No. 10-2379157-0000 (2022.03.22)

[9] "Power system with maximum power point tracking control algorithm", Park, J. E., South Korea - Registration No. 10-2374918-0000 (2022.03.16)

[10] "OBC device for electric vehicles, and design method of OBC device for electric vehicles", Park, J. E., South Korea - Registration No. 10-2357315-0000 (2022.01.25)

[11] "Selective converter device for electric vehicle OBC, and power conversion method of selective converter device for electric vehicle OBC", Park, J. E., South Korea - Registration No. 10-2335226-0000 (2021.11.30)

[12] "Power generation system and control method with boost converter", Park, J. E., Yoon, S. T., Lee, S. K., South Korea - Registration No. 10-2333360-0000 (2021.11.26)

[13] "DC-DC converting apparatus with coupled inductor", Park, J. E., Han, S. K., Bae, J. H., Koo, J. C., Lee, N. Y., Choi, J. D., South Korea - Registration No. 10-2326432-0000 (2021.11.09)

[14] "DC-DC converting apparatus", Park, J. E., Han, S. K., Bae, J. H., Koo, J. C., Lee, N. Y., Choi, J. D., South Korea - Registration No. 10-2322799-0000 (2021.11.01)

[15] "Power system with boost converter", Park, J. E., Yoon, S. T., Lee, S. K., South Korea - Registration No. 10-2309852-0000 (2021.09.30)

[16] "Power system with buck converter", Park, J. E., Yoon, S. T., Lee, S. K., South Korea - Registration No. 10-2295757-0000 (2021.08.25)

[17] "Power system and control method with buck-boost converter", Park, J. E., Yoon, S. T., Lee, S. K., South Korea - Registration No. 10-2295755-0000 (2021.08.25)

[18] "DC-DC converting apparatus using coupling among output inductors", Park, J. E., Jang, J. B., Cheon, Y. J., Kim, S. H., South Korea - Registration No. 10-2288894-0000 (2021.08.05)

[19] "Battery charging device", Park, J. E., Koo, J. C., Cheon, Y. J., South Korea - Registration No. 10-2288879-0000 (2021.08.05)

[20] "DC-DC converting apparatus using coupling with input inductor", Park, J. E., Jang, J. B., Cheon, Y. J., Kim, S. H., South Korea - Registration No. 10-2256221-0000 (2021.05.20)

[21] "Power system in satellite", Park, J. E., Kim, K. D., Park, S. W., Jang, J. B., Kim, S. H., South Korea - Registration No. 10-2186314-0000 (2020.11.27)

[22] "Wireless power transmitting apparatus, wireless charging system and control method thereof", Park, J. E., Lee, J. J., Jeong, B. S., Seo, J. K., Chae, B. S., South Korea - Registration No. 10-2121987-0000 (2020.06.05)

[23] "Wireless power transmitter and method of wireless power transmission", Gwak, B. S., Park, J. E., Lee, J. J., Jeong, B. S., Seo, J. K., South Korea - Registration No. 10-2096312-0000 (2020.03.27)

[24] "DC to DC converting apparatus", Park, J. E., Kim, D. K., Lee, N. Y., Choi, J. D., Jang, J. B., Lee, S. R., South Korea - Registration No. 10-2081411-0000 (2020.02.19)

[25] "Output fire pulse control system and method of satellite attitude controlling valve", Kim, K. D., Park, S. W., Park, H. S., Park, J. E., Yang, J. H., South Korea - Registration No. 10-2062677-0000 (2019.12.30)

[26] "Wireless power transfer apparatus adjusting gain of LC resonant generator using fixed frequency and method for adjusting gain of LC resonant generator", Jung, B. S., Park, J. E., Seo, J. K., Chae, B. S., South Korea - Registration No. 10-2048989-0000 (2019.11.20)

[27] "Wireless power transfer apparatus having a plurality of power transmitter", Park, J. E., Jung, B. S., Seo, J. K., Chae, B. S., South Korea - Registration No. 10-2036636-0000 (2019.10.21)

[28] "Electronics device, electronic vehicle, wireless power transfer apparatus", Chae, B. S., Park, J. E., Jeong, K. H., Seo, J. K., Jung, B. S., South Korea - Registration No. 10-2015496-0000 (2019.08.22)

[29] "DC to DC converting system", Park, J. E., Lee, N. Y., Choi, J. D., Jang, J. B., Lee, S. R., South Korea - Registration No. 10-2005880-0000 (2019.07.25)

[30] "DC to DC converting system", Park, J. E., Yang, J. H., Yoon, S. T., South Korea - Registration No. 10-2005881-0000 (2019.07.25)

[31] "Divider using analog circuit", Yang, J. H., Yoon, S. T., Park, J. E., Park, H. S., Park, S. W., Koo, J. C., Jang, J. B., Lee, S. K., South Korea - Registration No. 10-1737514-0000 (2017.05.12)

[32] "Multiplier using analog circuit", Yang, J. H., Yoon, S. T., Park, J. E., Park, H. S., Park, S. W., Koo, J. C., Jang, J. B., Lee, S. K., South Korea - Registration No. 10-1726582-0000 (2017.04.07)