Motor driving apparatus, electric blower, vacuum cleaner, and hand dryer
US11611306B2 · kind B2 · utility
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22Claims
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Assignee
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Key dates
| Filing date | Apr 11, 2019 |
| Grant date | Mar 21, 2023 |
| Priority date | — |
| Expiry date | Jun 2, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02K2201/03
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A motor driving apparatus for driving a single-phase motor includes an inverter disposed between a battery and the single-phase motor, the inverter applying a first voltage to the single-phase motor at startup and applying a second voltage to the single-phase motor during a normal operation. A stop time period is present after application of the first voltage, application of the first voltage being stopped during the stop time period, and the inverter applies the second voltage after a lapse of the stop time period.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.