Apple Inc.

Analog Devices,inc.

Dongwon Kwon

Chen Chen

Wei Xiong

Henry C Jen

Min Hao Chen

Jindong Zhang

Majid Gharghi

Stanley B Wang

Nikhil Acharya

Sunmin Jang

Hari P Paudel

Feng Yu

Yongjie Jiang

Shengzhe Jiao

Min Kyu Song

Jialin Liu

Arjunsimha Chaturbhuj

Ruofan Zhang

A display system may include a plurality of light emitting diodes to emit light, where each of the light emitting diodes are connected in parallel and a plurality of first switches respectively coupled to the plurality of light emitting diodes. A first switch of the plurality of first switches is coupled in parallel to a first light emitting diode. The first switch may short the first light emitting diode of the plurality of light emitting diodes through a defined resistor having a defined value that therefore draws a defined short circuit current.

Systems and methods for mitigating micro-LED failures

A multi-phase buck-boost converter circuit comprises a buck circuit stage, a boost circuit stage, and a control circuit. The buck circuit stage is connected to an input of the buck-boost converter circuit to receive an input voltage. The boost circuit stage includes multiple boost circuits connected in parallel. The boost circuit stage is coupled to the buck circuit stage and an output of the multi-phase buck-boost converter circuit. Each boost circuit includes an inductor coupled to the buck circuit stage. The control circuit operates the multiple boost circuit stages out of phase with respect to each other in a boost mode, operates the buck circuit stage in a buck mode, and operates the multiple boost circuit stages out of phase with respect to each other and operates the buck circuit stage in a buck-boost mode.

Multi-phase buck-boost converter

Growing community of inventors

Cupertino, CA, United States of America

Dongwon Kwon