12-24 volt power system
US5164655A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Aug 5, 1991 |
| Grant date | Nov 17, 1992 |
| Priority date | — |
| Expiry date | Aug 5, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02J7/1423
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A dual state power system utilizing power drivers to switch an alternator from 12 volt to 24 volt charging. A 12-24 volt alternator regulator charges a 12 volt battery or a 24 volt battery depending on the position of a mode switch. The invention allows the use of one alternator/engine combination to charge either a 12 volt or 24 volt system. The invention uses a 12 volt mode priority to override a 24 volt charging mode. The 24 volt charging mode is interrupted to provide voltage to a 12 volt battery for a predetermined time period. A voltage controller drives a smart electrical current driver which controls the output of an alternator. A reset circuit determines from system parameters reported from system components whether the charging system to a reset error circuit whether or not the alternator is operating correctly. A sense lamp driver indicates to the user that the system is in a non functioning state. A 12 volt mode lock-out and 24 volt mode lock-out isolates the 12 volt or 24 volt modes where appropriate. An open circuit sensor drives a reset circuit that prevents an open circuit from damaging the system. The reset shuts off alternator fields for many conditions including …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.