Power supply for intermittently operated loads
US5013973A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 6, 1989 |
| Grant date | May 7, 1991 |
| Priority date | — |
| Expiry date | Sep 6, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/34
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A power supply for intermittently energized loads, particularly gas discharge tubes employed as high intensity lights, has a pair of capacitances which are charged to a high voltage level to provide primary and secondary sources of anode voltage for the load. A coupling circuit impedes the discharge of the secondary anode voltage source capacitance when the primary anode voltage source capacitance is discharged through the load whereby a high voltage is present at the load, i.e., a discharge tube anode, immediately subsequent to the tube being extinguished thus reducing the time between successive firings of the tube. The current available for recharging the primary anode voltage source capacitance may also be increased during the time periods when the tube is being rapidly and repetitively fired.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.