Motor Control
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Motor Control
Hi Guy's sorry this is not a Citroen question but I want to make an electric motor run for five mins. after the power has been switched off. I think this is poss. if I put a capacitor in the feed line to the motor. What do you guy's think????
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Re: Motor Control
You need a timer relay, you can get them for mains use but don't know about about 12 volts, have a look on ebay. A capacitor would work if you had one big enough, several farads would required and you probably don't have room for it. You could make up a circuit using a smaller capacitor and a high resistance relay.
Peter
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Re: Motor Control
Most bathroom extractor fans have a run-on facility, often adjustable duration. I wonder if you could find any circuit diagrams for clues? Vent Axia and Xpelair are the common brands.
Richard_C
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Re: Motor Control
Something like this?
Re: Motor Control
Just to clarify, there are a number of ways if doing this, but none will work with the power removed entirely - you will still need a supply for the run-on function. A capacitor won't store enough charge to keep the motor running (well, no practical capacitor and motor, anyway).
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Re: Motor Control
A cheap source of a relay may be a heated rear window timer relay, although you may need to adjust a component value to get the exact timing that you require.
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Re: Motor Control
Velleman do several small pcb kits that will do this. Google Velleman kits.
You don't say what voltage/power your motor is.
You don't say what voltage/power your motor is.
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Re: Motor Control
If you don't mind me asking, WHY do you want this motor to run on for 5 minutes (and what loads will the motor be under)? Without knowing voltages/amperages any guesses will be just that; guesses.
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Re: Motor Control
Sounds like a turbo timer type of device.
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Re: Motor Control
Suppose you could always use a BIG GINORMOUS HUGE flywheel so it keeps spinning for a very long time, would take an age to get up to speed though. Or pump water/lift a weight as energy storage devices. Or engage the services of a hamster. (all the best ideas come after a bottle of good wine).
If its a serous project and you want to spend a few ££, maybe a raspberry pi as a controller - you could make it do many other things as well. A search for "raspberry pi motor control" will bring you all you would ever want to know and maybe more ...... that's all about control, so you will still need a live power source.
If its a serous project and you want to spend a few ££, maybe a raspberry pi as a controller - you could make it do many other things as well. A search for "raspberry pi motor control" will bring you all you would ever want to know and maybe more ...... that's all about control, so you will still need a live power source.
Richard_C
Current: , C4 Picasso 120 BlueHdi, C3 1.2 Auto
Past Citroens: Dyane (x2), 2CV, Visa, BX (x2), Xantia, Xsara Picasso, C3 (x2) C5 X7 Tourer, Synergie 1.9TD, C1
Others: Hillman Hunter, Cortina Mk 1, Maxi, VW Type 2, Granada, SAAB 900, SAAB 9-5, R5 Gordini
Current: , C4 Picasso 120 BlueHdi, C3 1.2 Auto
Past Citroens: Dyane (x2), 2CV, Visa, BX (x2), Xantia, Xsara Picasso, C3 (x2) C5 X7 Tourer, Synergie 1.9TD, C1
Others: Hillman Hunter, Cortina Mk 1, Maxi, VW Type 2, Granada, SAAB 900, SAAB 9-5, R5 Gordini
- white exec
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and lots of Rovers before that: 1935 Ten, 1947 Sixteen, 1960 P5 3-litre, 1966 P6 2000, 1972 P6 2000TC, and 1975 P6B 3500S - x 1752
Re: Motor Control
We still haven't a clue exactly what the application/installation actually is!
Without that info, all this is just ******* in the wind.
Without that info, all this is just ******* in the wind.
Chris