What is a Resolver? - A Galco TV Tech Tip | Galco

A resolver is a rotary transformer used to measure degrees of rotation. Resolvers can loosely be described as the analog equivalent to a rotary encoder, and provide position and speed feedback for a variety of industrial applications.

Resolver featured in video:

Connect with us!

Don't forget to like and comment on this video, and subscribe to our channel!

With respect to the usage, installation or assembly of any products described in this video, Galco Industrial Electronics, Inc., a Michigan corporation, encourages you to follow the requirements and/or guidelines of: i) the Occupational Safety and Health Act of 1970, Public Law 91-596, as amended, and all laws, rules and regulations implemented in relation thereto; ii) the National Electric Code®; and iii) NFPA 70E®. Any installation, assembly or work described in this video should be performed by a qualified licensed electrician.

LEGAL DISCLAIMER:
While we have made every attempt to ensure that the information provided is accurate and has been obtained from reliable sources, Galco is not responsible for any errors or omissions, or for the results obtained from the use of this information. All information is provided "as is", with no guarantee of completeness, accuracy, timeliness or of the results obtained from the use of this information, and without warranty of any kind, express or implied, including, but not limited to warranties of performance, merchantability and fitness for a particular purpose. At all times you should defer to the instructions and safety guidelines issued by the manufacturer. In no event will Galco, its agents or employees thereof be liable to you or anyone else for any decision made or action taken in reliance on the information provided to you or for any consequential, special or similar damages, even if advised of the possibility of such damages.

[debdamico]

I seem to have a resolver that has 9 wires. 6 seem standard, what are the other 3?

[MR-nlxr]

Could of used this video a year ago. Follow up break-down video would be nice.

[elmnaoirfer]

If we set 7 volts in the primary coil, what will be the peak voltage in the cosine coil at angle zero Is it 7 volts or less? The rule to find out the peak voltage at angle zero is as follows (peak potential of the cosine signal = voltage on the input coil x cosine of angle sita) (V cosine=Vr x cos cita)