Robert Neal Dean

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The impact of parallel GaN HEMTs on efficiency of a non-isolated point of load (POL) converter is investigated. The test results indicate how many parallel GaN HEMTs should be used to achieve maximum efficiency based on load current. Loss calculations and simulations provided initial direction, and ten POL converters were tested-only varying the number of(More)
The overall power system can generally be divided into three stages: front end, middle stage and point-of-load (POL). The overall efficiency of the power supply chain is dependent on the multiplicity effect which means each stage should be taken into account. Increases in efficiency of the POL converter have the benefit of reducing extra heat generation(More)
Similar to phase-locked loops, frequency-locked loops (FLLs) are useful in many applications involving waveform synchronization or synthesis. Simple logic circuit-based relaxation oscillators convert capacitance to frequency, which is a characteristic inverse relationship between output frequency and input capacitance. The oscillator’s logic level(More)