Author's Latest Posts

A Novel Design Method of Highly Efficient Saturated Power Amplifier Based On Self-Generated Harmonic Currents

By Wolfspeed, a Cree Company - 17 Jul, 2019 - Comments: 0

A novel design method without requiring the special harmonic termination circuit for a highly efficient power amplifier (PA) is proposed. The proposed PA is driven into saturated operation, from the linear to knee region, by adjusting the only fundamental load, and the saturated operation induces self-generated harmonic currents. The current and voltage waveforms can be shaped easily by the har... » read more

DC Bus Switching Performance as Determined by Commutation Loop Parasitics and Switching Dynamics

By Wolfspeed, a Cree Company - 19 Jun, 2019 - Comments: 0

In this article a 250 kW all-SiC inverter evaluation kit designed around low-inductance, high-speed power modules is used to demonstrate the DC bus switching performance resulting from the interaction among commutation loop parasitics and the switching dynamics. The interplay among the DC bus structure parasitics and near-RF switching dynamics can be quantified in both the time and frequency do... » read more

Accelerating Adoption of SiC Power

By Wolfspeed, a Cree Company - 20 Mar, 2019 - Comments: 0

The market has heard for many years about wide bandgap product roadmaps and concepts, touting that many possibilities could be available. However, you can’t design in a PowerPoint presentation or a preliminary datasheet, so this article will reinforce that Wolfspeed SiC power has moved way beyond any hype, talk, and fake news and has pioneered the widespread adoption of silicon carbide power ... » read more

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