Multifunction regulator synchronized to an alternator
US5079496A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 22, 1989 |
| Grant date | Jan 7, 1992 |
| Priority date | — |
| Expiry date | Feb 22, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A plurifunction device for regulating the excitation voltage of an alternator for charging the battery of an automobile vehicle, comprising battery and alternator phase voltage inputs, an excitation regulation output and a terminal connected to an indicator lamp. It also includes field coil power excitation control circuit, a battery voltage sensing circuit connected to the battery voltage input to supply a signal indicating that an alternator-battery connection is broken and an excitation regulation signal related to the peak and average values of the battery voltage. An alternator phase voltage amplitude sensing circuit supplies a first sensing signal related to a first threshold value authorizing the establishing of an excitation current with a frequency and cyclic ratio imposed by an alternator phase voltage signal applied to the alternator phase voltage input to initiate cutting in of the alternator. A second sensing signal related to an intermediate second threshold value authorizes application of a full-field condition to the alternator during cutting in initiated by the first sensing signal. A third sensing signal related to a third threshold value near a battery charge reg…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.