This thread has been locked.
If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.
Part Number: TIDA-RESOLVER-APPLICATIONS-REFERENCE-DESIGN
We are using a resolver for our axial type motor.
Our customers requested for the following details
-position offset in degrees between the resolver's mechanical zero position and the machine's electrical zero position
- a specification of the procedure used to take the measurement.
Could you please guide me to get answers for the above questions. If there is any instrument to find the offset in degree that would also help us.
We are glad that we were able to resolve this issue, and will now proceed to close this thread.
If you have further questions related to this thread, you may click "Ask a related question" below. The newly created question will be automatically linked to this question.
In reply to Tom Hendrick:
In reply to Vikash Kumar Sivasubramaniam:
the PGA411-Q1 is an highly integrated single-chip resolver to digital converter and provide the resolver mechanical position in a 12-bit or 10-bit digital representation, through SPI or parallel interface. Please refer to TIDA-00363 TI design for hardware design and test results.
The zero position is with respect to the resolver's mechanical zero position. As you wrote there could be an offset between the motor's mechanical zero angle position and the resolver's mechanical zero angle position, depending how you mount it to the motor shaft. I write mechanical angle since the motor electrical angle depends on the pole pairs of the motor. For a single pole pair the electrical and mechanical angle are equal. For two or more pole pairs is scales accordingly.
With the PGA411-Q1's digital output you'd simply subtract this offset for the digital output angle. If you don't know the offset, as simple method is to apply a zero voltage vector to the motor to stall it to it's zero position. Then you read the resolver angle. The difference is your mechanical offset if you have a single pole pair motor.
If the zero this is s
All content and materials on this site are provided "as is". TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with regard to these materials, including but not limited to all implied warranties and conditions of merchantability, fitness for a particular purpose, title and non-infringement of any third party intellectual property right. TI and its respective suppliers and providers of content make no representations about the suitability of these materials for any purpose and disclaim all warranties and conditions with respect to these materials. No license, either express or implied, by estoppel or otherwise, is granted by TI. Use of the information on this site may require a license from a third party, or a license from TI.
TI is a global semiconductor design and manufacturing company. Innovate with 100,000+ analog ICs andembedded processors, along with software, tools and the industry’s largest sales/support staff.