Thanks! I think these options are over kill. I realize the speed may be to fast. I only need ~60rmp. The step angle can be 7.5 (or better). I can set a limit at the factory so I can use a stepper I think.
Jameco has a bunch but they show the torgue but not the speed. They don't show speed for...
I have a product with a manual wheel for height adjustment. My customer wants this to be motorized.
My existing product has a wheel to adjust my load.
The current speed is manual ~ 60rpm.
The torque is 1.6Nm (see attached).
The motorized speed should be about 60 – 600 rpm (this is...
I am an EE with Power Supply Design and 3 phase AC Induction Design experience. I have a new project that requires rotating a 4 pound load at speeds of 10 – 2000 RPMs via direct drive (no gears). There will be a slow start ramp of a TBD rate. I also need to control the direction. I think a PM-DC...
"13.5 to 14.5 volts" -> Yeah, the batteries and solar systems are advertised as 12V. A battery that has a no load voltage of 12V is useless.
"Principal of operation" -> VFD = varies motor speed. Application = Gates.
"DC to DC Converter" -> Add a rectifier to an...
Thanks for the feedback – keep it coming!
The application is controlling a gate. There are a lot of different power requirements. Not all will need solar, but all will need battery backup (as an option). Solar panels would only be used on fractional HP model. I mention the solar cell only...
I have designed a 1HP VFD. I now need battery backup motor control for the same power range. I also have a solar requirement which keeps the battery voltage at 12V (24V solar is an option but less popular). I have two options:
1. 'Step-up' the battery voltage to the VFD DC voltage through an...
electricuwe,
Search engines did lead me to lots of info on European Conference on Power Electronic and Applications. I wan't able to find the paper (only the abstract). It would be great if you could forward me a copy (dpulis@chamberlain.com). Thanks once again!
Any chance you will be at APEC...
Thanks for everyones help!
In regard to electricuwe's response, any idea how to get a hold of the paper "Novel Digital Controller for Induction Machines Considering Inverter Switching Times and a Fluctuating DC-Link Voltage"?
I have been tasked with designing a variable speed drive for an induction motor. What is the required (recommended) ripple for the DC voltage? This will determine my capacitor. What happens if I operate with more ripple?
I understand I need to maintain constant air-gap flux with constant...
