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Achtung! Power technology on display at PCIM Nuremberg

May 17, 2019 By Lee Teschler

Power factor control via GaN

One of the items shown by transphorm was this firmware-based 3.3-kW bridgeless totem-pole FPC transphormreference design built with the firm’s TP65H050WS 650-V GaN FETs. A DSP handles the control and the output is firmware-programmable in the range of 373 to 393Vdc. The PFC is a switched design operating in the 45 kHz to 150 kHz range. Typical applications are in vehicular on-board chargers and high-end industrial supplies. Another design shown at PCIM was a dc-dc converter, bottom, also employing GaN FETs. The company says the GaN-based converter excels as switching freqencies rise.

NEXT PAGE: GaN FETs now fit into traction inverters

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Filed Under: Converters, DC-DC, Development Tools, Featured, LED Lighting, Power Components Tagged With: advancedcoolingtechnologies, ashimicrodevices, epc, gansystems, infineon, microchiptechnologyinc, nexperia, transphorm

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