dirty dc to a dc linear actuator
dirty dc to a dc linear actuator
(OP)
Hello,
In a nutshell, I cannot incorporate a voltage regulator, a new power supply, a different transformer, or add any significant cost....I've got a 24VDC linear actuator and my control voltage choices are a lumpy rectified 24vac (~22VDC, 120Hz) or 34VDC from using a cap across the rectifier. I will be verifying, but I believe the tolerance on the thing is +/- 10%...which is going to kill this actuator quicker? Or am I fairly safe either way?
In a nutshell, I cannot incorporate a voltage regulator, a new power supply, a different transformer, or add any significant cost....I've got a 24VDC linear actuator and my control voltage choices are a lumpy rectified 24vac (~22VDC, 120Hz) or 34VDC from using a cap across the rectifier. I will be verifying, but I believe the tolerance on the thing is +/- 10%...which is going to kill this actuator quicker? Or am I fairly safe either way?





RE: dirty dc to a dc linear actuator
The 22V pulsing DC is actually more like 31V not 22V so I don't see much improvement. The pulsation will probably be worse. Go with the cap.
If there are no electronics in your actuator it will probably be fine if the duty cycle is low.
Keith Cress
kcress - http://www.flaminsystems.com
RE: dirty dc to a dc linear actuator
RE: dirty dc to a dc linear actuator
I never imagined that the dweeb EE on the project would _not_ use a battery to power it, since it would also be handy for emergency egress from the system.
Said dweeb spent months designing some super- duper custom power supply with super filtering and a rating just above the running current, which I think was about 20A.
Our ace lab tested the first actuator to arrive, using a laboratory power supply with foldback circuit, and declared the actuator dead.
Of course the actuator was perfectly fine.
It just took >200A for a few milliseconds to start.
Said dweeb was then paid to design a custom trickle charger for the car battery that should have been there in the first place.
Mike Halloran
Pembroke Pines, FL, USA
RE: dirty dc to a dc linear actuator
The OP said he didn't want to spend enough money to do the job correctly..
Keith Cress
kcress - http://www.flaminsystems.com
RE: dirty dc to a dc linear actuator
RE: dirty dc to a dc linear actuator
What did the boss say about calling me names? ;)
Dan - Owner

http://www.Hi-TecDesigns.com
RE: dirty dc to a dc linear actuator
His circuits did exactly what he designed them to do, he just designed them to do the wrong thing, and he designed stuff that he should have just bought.
He had zero common sense, and was arrogant and stubborn.
Nice guy, though. Couldn't have been you.
Mike Halloran
Pembroke Pines, FL, USA
RE: dirty dc to a dc linear actuator
Keith Cress
kcress - http://www.flaminsystems.com