Method and apparatus for voltage regulation depending on battery charge
US5280232A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 21, 1991 |
| Grant date | Jan 18, 1994 |
| Priority date | — |
| Expiry date | Oct 21, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/0048
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The method of regulating a voltage produced by a generator with a voltage regulator according to a battery charge state includes providing a controller containing a clock and a memory able to store battery and power supply reference data, battery voltage and generator rotation speed; maintaining a regulated voltage produced by the generator at a normal value (U.sub.R) during a first time interval (t1); measuring a battery voltage (U.sub.B) and decreasing the regulated voltage (U.sub.R) during a second time interval (t2); determining the battery charge state from the measured battery voltage (U.sub.B) according to the stored battery- and power supply-reference data; and, when the battery charge state is determined to be unsatisfactory, determining an additional time interval (t4) with the controller and an amount of increase of the regulated voltage (U.sub.R) sufficient to obtain a satisfactory battery charge state during the additional time interval (t4) without damaging the voltage sensitive components of the voltage regulator; and increasing the regulated voltage above the normal value (U.sub.R) by the thus determined amount and turning on no voltage-critical consuming device dur…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.