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The spring return may be slow. If you what a faster pull than put a resister in series with the coil. I thought you needed a doide to get a 50% duty cycle? Andy
Thanks for letting me know. I wounder if a 50/50% duty cycle is best for this app now that we know the solenoid is spring return? Andyhi Andy,Connecting the 555 as shown in the diagram will give a 50/50% cycle
Thanks for letting me know. I wounder if a 50/50% duty cycle is best for this app now that we know the solenoid is spring return? Andy
Its just a matter of how you hookup the 555 timer. It looks like you can change it in the sim. The question will be how long does the pulse need to be to drive the solenoid all the way out but you can make that ajustible too.A smaller "on" duty would allow me to achive higher frequencies, but im not sure how much more this would complicate the circuit.
Hi,
Sorry I will be a little more clear now, because even at the start of the thread I wasnt 100% clear on what I needed. Im doing a project at university which involves mechanically "decoupling" two pistons from one another. In order to simulate the recriprocating motion I was going to propose a system which used a solenoid, and therefore needed a circuit to drive the solenoid back and forth.
I understand that this isnt a good application for a solenoid, but I want to prove this before I go on to other ideas. A smaller "on" duty would allow me to achive higher frequencies, but im not sure how much more this would complicate the circuit.
Just to double check, is it ok to use the IRL540 mosfet?
Also, using your diagram I have worked out the resistors and caps I need. Is it right that the period will be the same for both on and off cycles? Also is it correct that the output is on pin 3 like I have circled in my attachment?
Hi,
From the quoted diagram, what capacitor goes on pin5?
Also, is the 0V in the green box showing that there is also a ground connection to pin1 (and the branches?)
Thank you.