SLVA654B June 2014 – March 2019 DRV8301 , DRV8301-Q1 , DRV8302 , DRV8303 , DRV8307 , DRV8308 , DRV8312 , DRV8323R
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Hardware design considerations for an efficient vacuum cleaner using a BLDC motor
- Trademarks
- 1 Suction Principle
- 2 Brushless DC Motors (BLDC)
- 3 Microcontrollers
- 4 Gate Driver and MOSFETs
- 5 Isolation
- 6 Power Management (6 to 60-V DC Power Supply)
- 7 CAP and QEP interfaces
- 8 Enhanced Controller Area Network (eCAN)
- 9 High-Resolution and Synchronized ADCs
- 10 DRV8323R
- 11 Feedback Stage
- 12 Conclusion
- 13 About the Author
- 14 References
- Revision History
11.3 Position Loops
A resolver or optical encoder can be used. If a resolver is used then an ADC must be used. An optical encoder provides a digital output which eliminates the need for an ADC. The position loop is the back-EMF signal feedback loop, which is required for commutation.
