LED INTERFACE EXPANDER CIRCUIT FOR LIGHT EMITTING DIODE LED DRIVER CIRCUITS

An expander circuit may be configured to control a plurality of driver circuits for driving a light emitting diode (LED). The expander circuit may comprise: a bus interface circuit configured to receive a control signal from a processor through a communications bus; and a plurality of modulation sig...

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Bibliographische Detailangaben
Hauptverfasser:	IMANAKA YOSHINORI, GHEDIN DAVIDE, FRAGIACOMO FABIO
Format:	Patent
Sprache:	eng ; kor
Schlagworte:	BLASTING ELECTRIC HEATING ELECTRIC LIGHTING NOT OTHERWISE PROVIDED FOR ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY HEATING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO THEFORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THELIGHT EMITTED INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21Sand F21V, RELATING TO USESOR APPLICATIONS OF LIGHTING DEVICES OR SYSTEMS LIGHTING MECHANICAL ENGINEERING WEAPONS
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Beschreibung
Zusammenfassung:	An expander circuit may be configured to control a plurality of driver circuits for driving a light emitting diode (LED). The expander circuit may comprise: a bus interface circuit configured to receive a control signal from a processor through a communications bus; and a plurality of modulation signal generators configured to generate a modulation signal based on the control signal. The expander circuit may be configured to provide the modulation signal to the plurality of driver circuits for driving the LED. 확장기 회로는 발광 다이오드(LED)를 구동하기 위한 복수의 드라이버 회로를 제어하도록 구성될 수 있다. 확장기 회로는 통신 버스를 통해 프로세서로부터 제어 신호를 수신하도록 구성된 버스 인터페이스 회로와, 제어 신호에 기초하여 변조 신호를 생성하도록 구성된 복수의 변조 신호 생성기를 포함할 수 있다. 확장기 회로는 LED를 구동하기 위한 복수의 드라이버 회로에 변조 신호를 제공하도록 구성될 수 있다.