Parallelling Mosfets

The characteristics of paralleled mosfets will not be guaranteed to be exactly the same due to manufacturing differences, tolerances etc, so your design needs to allow for this. Heatsinking Paralleled mosfets should be placed close together and use the same heatsink so they are thermally matched. Current Sharing Resistor You typically need to use a source […]

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Using MOSFETs As General Switches

Basic MOSFET Selection Rules / Checks The Drain to Source max voltage rating (max Vds) determines the maximum voltage you can switch. The Gate threshold voltage determines the voltage difference you need to apply to the gate to make the mosfet conduct. The Gate to Source max voltage (max Vgs) is a critical factor that must not be exceeded (even […]

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