Refrigerator
US6367273B2 · kind B2 · utility
23Cited by
7References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 13, 2001 |
| Grant date | Apr 9, 2002 |
| Priority date | — |
| Expiry date | Apr 13, 2021 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02B30/70
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
A refrigerator, having a motor for driving a compressor, an inverter for controlling the operation of the motor, a converter responsive to AC to perform a boosting function to supply DC of variable voltage to the inverter, converter control means for controlling the converter so that a plurality of DC voltages are outputted thereby and inverter control means for controlling the inverter in pulse width modulation each of the plurality of voltages. The lowest voltage among the plurality of voltages being a voltage which turns off the boosting function of the converter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.