US Patent No. 10,342,080

SYSTEM-IN-PACKAGE FOR LED DRIVING AND LED LIGHTING DEVICE INCLUDING THE SAME


Patent No. 10,342,080
Issue Date July 02, 2019
Title System-in-package For Led Driving And Led Lighting Device Including The Same
Inventorship Sung Ho Jin, Ansan-si (KR)
Sang Wook Han, Ansan-si (KR)
Hyung Jin Lee, Ansan-si (KR)
Assignee Seoul Semiconductor Co., Ltd., Ansan-si (KR)

Claim of US Patent No. 10,342,080

1. A light-emitting diode (LED) lighting apparatus comprising:at least one LED group comprising a plurality of LEDs;
a rectifier configured to rectify an alternating current (AC) voltage and generate a driving voltage for the at least one LED group; and
a system-in-package (SIP) configured to drive and control the at least one LED group, the SIP connected to the at least one LED group and the rectifier,
wherein:
the SIP comprises a driving module, a functional module, and a first resistor disposed on a single substrate; and
the driving module comprises:
a driving controller configured to determine a magnitude of the driving voltage and control driving of the at least one LED group according to the magnitude of the driving voltage;
a driving current controller configured to control a current flowing in each LED group to have a constant value;
an internal power supply unit configured to generate an internal power used in the driving module from the driving voltage;
an LED driving current setting Unit configured to set an LED driving current value for each operation period based on resistance values of external LED driving current setting resistors; and
a dimming control unit configured to provide a dimming signal to at least one of the driving controller and the LED driving current setting unit.