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At high-frequency applications, the gate drive loss of the power metal oxide semiconductor field-effect transistor (MOSFET) becomes quite significant. A new dual-channel low side resonant gate drive circuit is proposed in this paper. The proposed drive circuit can provide two symmetrical drive signals for driving two MOSFETs. It charges and discharges the MOSFET gate capacitor with a constant current...
At high frequency applications, the gate drive loss of the power MOSFET becomes quite significant. A new dual channel low side resonant gate drive circuit is proposed in this paper. The proposed drive circuit can provide two symmetrical drive signals for driving two MOSFETs. It can recover most of the driving energy and clamp the gate and source voltage of the driven MOSFETs to either drive voltage...
The paper proposed a resonant gate drive circuit for buck converter with synchronous rectifier. The circuit can recover more than 50% of the conventional gate drive loss. It charges and discharges the gate of MOSFET at constant current. It can also reduce the switching loss significantly. Other advantages of the proposed circuit include better noise immunity for dv/dt turn on, less sensitive to track...
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