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A circuit that accepts a small-signal digital input and produces as output a high current appropriate for driving the gate of a power MOSFET. See also the [gate-driving] tag.

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Why did a 1k resistor at the MOSFET gate solve my problem?

Why did a 1k resistor solve my problem? I wanted to control a 3 wire computer fan with PWM(25 kHz 50% duty) from my Arduino NANO pin 10. My Circuit was very simple. I had an IRLB8721F N-Channel MOSFE …
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