The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 31, 2024
Filed:
Jul. 06, 2023
Omron Corporation, Kyoto, JP;
Nahit Emanet, East Greenwich, RI (US);
Oezguer Aksoy, East Greenwich, RI (US);
Mustafa Mihmanli, East Greenwich, RI (US);
Takahiro Takeyama, Kyoto, JP;
Ryo Ogura, Kyoto, JP;
Jeongho Baik, Kyoto, JP;
Jun Nakaichi, Kyoto, JP;
Tsuyoshi Uchida, Hoffman Estates, IL (US);
Tomoko Endo, Hoffman Estates, IL (US);
Erica Martin, Hoffman Estates, IL (US);
OMRON CORPORATION, Kyoto, JP;
Abstract
The solar power generation system includes a string, an inverter, and primary and secondary shut-off devices. The primary shut-off device cuts off the string and the inverter in response to a first control signal. The secondary shut-off device cuts off a solar cell module group and another solar cell module or the inverter in response to a second control signal from the primary shut-off device. The secondary shut-off device includes a first secondary-device open-close unit in a first electric pathway, a semiconductor switching device disposed between the first secondary-device open-close unit and a solar cell module group, and a power supply unit having an anode-side terminal connected between a solar cell module group and the semiconductor switching device, which generates power to drive the third open-close unit. The semiconductor switching device enters an OFF state when power generated by the solar cell module groups falls below a predetermined threshold.