Stmicroelectronics (shenzhen) R&d Co. Ltd.

Hon Hai Precision Industry Co., Ltd.

HongXia Li

Min Chen

Wen Ting Liu

XiaoWu Dai

Tung Min Cho

Yom Wu

A switching circuit includes a first input stage having an input for receiving a first input signal, an output, and a power terminal for receiving an increasing analog current, a second input stage having an input for receiving a second input signal, an output, and a power terminal for receiving a decreasing analog current, and an output node coupled to the outputs of the first input stage and the second input stage for providing a switched output signal. An output stage is coupled between the first and second input stages and the output node. The first and second input stages are operational amplifiers.

Analog signal soft switching control with precise current steering generator

A heat sink ( ) includes a chassis ( ), and a plurality of fins ( ) extending upwardly from the chassis. The chassis includes a platform ( ) and a guide portion ( ) extending horizontally from. an end portion of the platform. The guide portion has top and bottom surfaces. At least one of the top and bottom surfaces is arcuate such that the guide portion tapers toward a distal end. When a fan system operates at a side of the heat sink generally facing the guide portion, the guide portion guides cooling air generated from the fan to top and bottom surfaces of the chassis and to bottom portions of the fins, whereupon the cooling air exits the heat sink. Heat accumulating on the chassis and the bottom portions of the fins is thereby efficiently removed.

Heat sink for facilitating air flow

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Shenzhen, China

HongXia Li