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<?Pub Dtl?>Considering the tradeoff between efficiency and output ripple over a wide load range, a monolithic dc–dc buck converter with switch-on-demand modulation (SODM) and switch size control (SSC) is presented in this paper. SODM achieves a hybrid mode of pulse skip and pulse width modulation (PWM) without mode detection circuit. The converter's on time is adaptively adjusted with the load...
This paper presents the switching characterization of 1200 V, 5 A SiC JFET prototype devices for application in an AC three-phase current-source rectifier (CSR) with a switching frequency of 150 kHz. The result of device on-resistance is shown as a function of junction temperature. Using a simplified gate drive design, the switching characteristics of the SiC JFET are measured experimentally at voltage...
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