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:
Jul. 17, 2018
Filed:
Jun. 24, 2016
Seoul Semiconductor Co., Ltd., Ansan-si, KR;
Hye Man Jung, Ansan-si, KR;
Hyun Gu Kang, Ansan-si, KR;
Oh Seok Kim, Ansan-si, KR;
Young Eun Yang, Ansan-si, KR;
Seoul Semiconductor Co., Ltd., Ansan-si, KR;
Abstract
A lighting apparatus includes a light-emitting diode (LED) array, a rectifying unit configured to rectify an alternating current (AC) voltage and to generate a driving voltage for the LED array, a switch control signal generation unit configured to generate a switching control signal depending on the driving voltage, the switching control signal including connection control signals and a compensation control signal, connection changing units configured to change a connection between the LEDs according to the connection control signals, and a light output compensation unit configured to generate a compensation voltage according to the compensation control signal, and selectively supply the compensation voltage to the LED array.