LED DRIVER ELECTROMAGNETIC INTERFERENCE MITIGATION

LED DRIVER ELECTROMAGNETIC INTERFERENCE MITIGATION

An apparatus includes a digital ramp generator comprising a delay line, the delay line comprising one or more delay elements and an oscillator, wherein the digital ramp generator is configured to generate a code based on respective outputs of the one or more delay elements, a digital to analog conve...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: Guo, Jing, Lu, Junjie, Song, Jungwoo, Gan, Jianhua, Jiang, Xicheng, Duan, Jingbo
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
BASIC ELECTRONIC CIRCUITRY
ELECTRICITY
PULSE TECHNIQUE
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Beschreibung
Zusammenfassung:An apparatus includes a digital ramp generator comprising a delay line, the delay line comprising one or more delay elements and an oscillator, wherein the digital ramp generator is configured to generate a code based on respective outputs of the one or more delay elements, a digital to analog converter coupled to the digital ramp generator, wherein the digital to analog converter is configured to generate a reference signal, wherein the reference signal is generated based, at least in part, on the code, and a driver coupled to the digital to analog converter, the driver configured to generate a drive current based, at least in part, on the reference signal.