Electronic ballast with programmable processor
US7129647B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 14, 2003 |
| Grant date | Oct 31, 2006 |
| Priority date | — |
| Expiry date | Nov 14, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/28
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electronic ballast circuit includes a programmable processor. The processor is programmed to vary operating parameters of the ballast circuit to accommodate operation of different types and/or sizes of lamps. Ballast circuit operating parameters that can be varied by the programmable processor include component parameters, such as inductance and resistance, and the frequency at which the ballast circuit is oscillated. The processor can be programmed to produce an oscillating processor signal which is used to produce a corresponding oscillating power signal to ignite and/or sustain ignition of the lamp. A voltage monitor and a current monitor are employed to monitor the operating condition of the lamp. The monitor outputs are used by the processor to optimize circuit operation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.