Drive MOSFET by a 24V input signal of an industrial controller

Question

I want to drive this n-type MOSFET by a 24V input Signal. Because of the max being Vgs=20V I want to set Vgs to 10V.

schematic

^{simulate this circuit – Schematic created using CircuitLab}

Is this ok for building the circuit or do you have any other suggestions?

(Switching frequency <2Hz)

An alternative for the MOSFET presented above is this one.

You'd be better off using the build in schematic editor to make that readable. — David, Nov 17, 2014 at 14:30
Congratulations! It'll work, or so it appears... :-) It would help if you'd add proper reference designations and values to all of the components. — EM Fields, Nov 17, 2014 at 14:42
Thank you, the schematic editor is many times more suitable... I don't really know the type of the other devices. I think D2 will be 1N5819, D1 a standard 10V-z-diode, M1 is a given motor with 3.3V and 3A power characteristic and SW1 an 24V-output of a PLC control. — Findus, Nov 17, 2014 at 15:04
Just as an aside, the circuit would work a little better (the gate capacitance would discharge more quickly) if you changed R1 to 470 ohms, plus you could then get rid of the Zener. — EM Fields, Nov 17, 2014 at 15:08

R Djorane · Accepted Answer · 2014-11-17 14:39:49Z

-1

You can use a mosfet driver is more suitable for this kind of applications. You have an exemple of an mosfet driver http://cds.linear.com/docs/en/application-note/an53.pdf.

answered Nov 17, 2014 at 14:39

R Djorane

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\$\begingroup\$ At 2Hz, and with the switch driving a MOSFET driver, a MOSFET driver would be way overkill. \$\endgroup\$
– EM Fields
Nov 17, 2014 at 14:49

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