Brushless DC motor, and identification method and identification apparatus of identifying type of brushless DC motor
US10439522B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Apr 30, 2018 |
| Grant date | Oct 8, 2019 |
| Priority date | — |
| Expiry date | Apr 30, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01R31/343
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An identification method is an identification method for use in an identification apparatus that identifies types of brushless DC motors each including a circuit board on which a terminal for tachometer is mounted. The duty ratios of pulses outputted from the terminals for tachometer vary among multiple types of brushless DC motors. The identification method includes: supplying a power supply voltage from the identification apparatus to a brushless DC motor; inputting pulses outputted from the terminal for tachometer of the circuit board to the identification apparatus; obtaining the duty ratio of the pulses as a unique information piece of the brushless DC motor; and identifying the type of the brushless DC motor based on the unique information piece of the brushless DC motor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.