Blower speed control
US4734012A · kind A · utility
15Cited by
5References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 17, 1987 |
| Grant date | Mar 29, 1988 |
| Priority date | — |
| Expiry date | Apr 17, 2007 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02P25/04
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A speed controlling circuit for an alternating current powered blower motor is disclosed in which rectified direct current voltages are manipulated, regulated responsive to ambient temperature, and compared so as to provide reliable and cost effective blower speed control in proportion to ambient temperature and low blower speed cut off.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.