An EMI suppression MOSFET driver
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The MOSFFTs dVdrain/dt during turn off is sensed by the EMI suppression driver circuit, which selectively adjust the Vgs transition time at a voltage near the MOSFFT's threshold voltage. This technique controls the dVdrain/dt and reduces the EMI noise produced by a hard switching power MOSFET while keep its power loss at a minimum
Published in:
Applied Power Electronics Conference and Exposition, 1997. APEC '97 Conference Proceedings 1997., Twelfth Annual
(Volume:1
)
Date of Conference: 23-27 Feb 1997