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Mosfet Driver using 555timer ( Buck-Boost converter)
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Siwastaja:

--- Quote from: Zero999 on February 23, 2019, 07:23:54 pm ---Large spikes in power dissipation are to be expected, especially in start-up.

--- End quote ---

Are to be expected, but may possibly blow up the MOSFET as well, since they are real, not simulation artifacts. Hence the earlier suggestion of current mode control (highly recommended), or minimally, a corner-case hack (like softstart PWM rampup) that works 99% of the time and only blows up 1% of the time.

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