Ciena Corporation

Karan Goel

Chander Prakash Gupta

Ranjeet Chaurasiya

Sachin Singla

Anand Kumar

Sujoy Mandal

Suyash Agrawal

A networking equipment enclosure assembly, including: a base chassis; a lid coupled to the base chassis; a printed circuit board disposed within the base chassis; and a power supply unit disposed between the printed circuit board and the lid, wherein the power supply unit is spaced apart from and biased away from the printed circuit board and towards the lid via a spring mechanism coupled between the printed circuit board and the power supply unit. The networking equipment enclosure assembly also includes a heat spreader plate disposed between the power supply unit and the lid and coupled to the power supply unit. The power supply unit is biased towards the lid via the spring mechanism coupled between the printed circuit board and the power supply unit such that the heat spreader plate is pressed into thermal contact with the lid.

Outdoor networking equipment enclosure utilizing internal open frame power supply for optimum thermal management and cable minimization

A single stage electromagnetic interference (EMI) filter circuit includes a power source input configured to connect to a power source; an equivalent common mode and differential mode filter including a single inductor having both common mode inductance for common mode filtering and specific parasitic inductance; and a differential capacitance stage connected to the single inductor in parallel, wherein a combination of the specific parasitic inductance and capacitance of the differential capacitance stage are used to provide differential mode filtering.

Single stage EMI filter design to meet EMI requirements

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Gurugram, India

Karan Goel