driving 24v 4A 6Ohm solenoids, selection of flyback diode
I wanted to quickly ask,
I wanted to drive a Solenoid (6 Ohm, rated for 12v and 2A, Duty cycle 10%) off of the expansion board on the Duet.
It is only actuated momentarily with 24v for switching the hotends, so i think the duty cycle with the higher current should be fine.
My question is if one of those Diodes would be fine?
And the mosfets would be those
Either of those diodes will be more than adequate. The mosfet board will it be suitable if it will work from a 3.3V control signal.
Alternatively, if the E1 heater output on your Duet is spare, connect it to that. You still need the flyback diode.
Hi dc42, thank you for answering so quickly.
No, the E1 heater output is not to spare sadly.
I was thinking of using the two PWM ports on the duet expansion breakout board?
What do you mean by
The mosfet board will it be suitable if it will work from a 3.3V control signal.
Do you mean the mosfet board does not work on 5v?
If so, do i have to connect it to the board itself?
Which pins would be suitable for that?
The PWM ports provide 5V drive. Check that your mosfet board is ok with that.
From this "diagram"
They list that the mosfet is to be connected directly to the old mosfet heated bed output, so i guess 12-24v
Does that mean that 5v is OK or does that mean that maybe 5V is not enough?
It means that 5V may not be enough.