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In this paper, the switching loop inductance was investigated on the Current Source Drivers (CSDs). The analytical model was developed to predict the switching losses. It is noted that although the CSDs can reduce the switching transition time and switching loss greatly, the switching loop inductance still has the current holding effect on the CSDs. This results in high turn off loss for the control...
In this paper, an auxiliary circuit is presented to improve the dynamic response of a buck converter. Since it is well established that for typical voltage regulator applications, voltage overshoots (due to step-down load transients) are much larger than voltage undershoots (due to step-up load transients), the goal of the proposed method is to reduce the former. The circuit only functions during...
This paper proposes a new current-source gate drive circuit for a synchronous buck converter. The proposed driver can drive two MOSFETs independently with different drive currents for optimal design. For the control MOSFET, the optimal design involves a tradeoff between switching loss reduction and drive circuit loss; while for the synchronous-rectifier MOSFET, the optimal design involves a tradeoff...
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