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DOE OSTI · 1569260

Integrated Power Chip Converter for Solid State Lighting (Final Report)

Mehrotra, Vivek
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Abstract

The overall goal of the project was to develop an integrated power converter chip for solid-state lighting. We developed a low component count circuit topology, fast and low loss switching devices, compact and low loss passive components, and integration methodology to enable an integrated LED driver, where cost, size and efficiency are paramount. The converter was designed to operate directly from ac line voltage, nominally providing 24 V output at 25 W with features of dimming and control for light uniformity. We developed a power circuit and control suitable for chip-scale integration, low loss and high frequency GaN power devices with a new vertical architecture that reduces parasitics and lowers cost by decreasing the chip real estate, and high-density passives, including a chip-scale flyback transformer that integrates inductor and transformer action into a single component.

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24 POWER TRANSMISSION AND DISTRIBUTIONChip-Scale CapacitorsChip-Scale ConverterChip-Scale MagneticsFlybackGaN Power DevicesIntegrated Power ConverterLED DriverTeledyne Scientific Company

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Mehrotra, Vivek. 2013-09-27. Integrated Power Chip Converter for Solid State Lighting (Final Report). https://doi.org/10.2172/1569260

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