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The present work proposes a solution for implementing an isolated gate driver for SiC power MOSFETs. The isolation capability, gate switching and power transfer to the isolated side features are accomplished by using a unique magnetic transformer. To avoid core saturation, the original PWM control signal is modulated with a high frequency square-waveform. The on and off times are modulated with two...
This work proposes a solution for an isolated gate driver for SiC MOSFETs, based on a magnetic transformer that simultaneously provides to the secondary side the turn-on and turn-off gate signals and the power required for an adequate gate control. This avoids the use of a dedicated DC-DC isolated converter and optocoupler. The original pulse signal is converted into impulses, avoiding transformer...
A non-resonant electronic ballast based on one power switch and on one reactive element-one inductance-is described in this paper. The special current mode control implementation provides an intrinsic short-circuit protection and a very simple control circuitry. Filament heating time, current during the heating period, and protection against broken tube can be easily implemented with the proposed...
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