- Joined Oct 21, 2015
Okay, but is one of them "better" than the other?They are significantly different.
In the first one, the full input voltage is applied to the current limiting resistor.
In the second one, Rth forms a voltage divider so only 1/3 of the input voltage is applied to the gate.
I'd prefer the first circuit. Pull down to prevent the motor from turning on if the driver isn't actively driving the gate. Resistor to limit gate charging current; if that's an issue.DC motor control via PWM using low side switching.
I'd generally agree with @dl324 above, but it could also be situation specific.Okay, but is one of them "better" than the other?
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