Patent · US Active

LED driver circuit, corresponding device and method

US11271555B2 · kind B2 · utility

0Cited by

4References

24Claims

0Family size

Assignee

STMicroelectronics SA

Inventors

Ignazio Cala' · Palermo, IT
Santi Carlo Adamo · San Gregorio di Catania, IT

Key dates

Filing date	Aug 17, 2020
Grant date	Mar 8, 2022
Priority date	—
Expiry date	Aug 17, 2040

Classification

Technology area (CPC G)Physics
CPC primaryG06F2213/0052
WIPO fieldBasic communication processes
WIPO sectorElectrical engineering

Abstract

A circuit includes a set of LED driver devices and a controller including a set of nodes coupled to a first slave address pin and a second slave address pin in each LED driver devices in the set of LED driver devices. Each LED driver device includes a finite state machine (FSM) configured to generate LED drive PWM-modulated signal patterns, an oscillator configured to generate a clock signal for the FSM, a first signal path activatable between the first slave address pin and the FSM, and a second signal path activatable between the FSM and the second slave address pin.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.