US Patent No. 10,973,099

CARRY-SIGNAL CONTROLLED LED LIGHT WITH FAST DISCHARGE AND LED LIGHT STRING HAVING THE SAME


Patent No. 10,973,099
Issue Date April 06, 2021
Title Carry-signal Controlled Led Light With Fast Discharge And Led Light String Having The Same
Inventorship Wen-Chi Peng, New Taipei (TW)
Assignee SEMISILICON TECHNOLOGY CORP., New Taipei (TW)

Claim of US Patent No. 10,973,099

1. A carry-signal controlled LED light with fast discharge, comprising:at least one LED, and
a drive unit coupled to the at least one LED, the drive unit configured to receive a carry light signal and control the at least one LED to light, the drive unit comprising:
a signal detector configured to receive the carry light signal and provide a discharge control signal according to the carry light signal,
a fast discharge unit configured to receive the discharge control signal and control a voltage of the carry light signal to decrease faster, wherein the voltage of the carry light signal is lower than a low-level voltage by both turning on the fast discharge unit and providing a resistance from a positive power pin to a negative power pin of the fast discharge unit,
a light control unit comprising:
an address and data identifier,
a logic controller coupled to the address and data identifier, and
a shift register coupled to the logic controller,
the light control unit configured to drive the light behavior of the at least one LED according to light command content of the carry light signal, and
a capacitor configured to receive a DC power source to be charged, and provide the required work power to the LED light when the fast discharge unit fast discharging.