Voltage regulator with temperature responsive circuitry for reducing alternator output current
US4470003A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 11, 1983 |
| Grant date | Sep 4, 1984 |
| Priority date | — |
| Expiry date | Apr 11, 2003 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0047
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A conventional voltage regulator is modified to reduce the power output from an associated alternator type generator by lowering the field current duty cycle when the ambient temperature at the voltage regulator exceeds a predetermined critical value, to thereby prevent damage to the alternator and regulator components until the ambient temperature is reduced. A temperature responsive means is connected across the field winding of the alternator and provides an override control function to the regulating section of the regulator, whenever the ambient temperature is too high. The override control causes the closed field current switch to be opened and to be held opened for a period of time that is directly related to the value of the sensed ambient temperature above the critical value.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.