Gas-discharge lamp controller utilizing a novel reheating frequency generation mechanism
US8217583B2 · kind B2 · utility
5Cited by
6References
10Claims
0Family size
Assignee
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Key dates
| Filing date | Jul 21, 2010 |
| Grant date | Jul 10, 2012 |
| Priority date | — |
| Expiry date | Feb 25, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH05B41/295
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A gas-discharge lamp controller utilizing a novel preheating frequency generation mechanism, including: a resistance sensing means, used to generate a sensed voltage when coupled to an external series resistor-capacitor network, the external series resistor-capacitor network being biased between a first supply voltage and a reference ground; a sample and hold circuit, used to generate a sampled voltage of the sensed voltage under the control of a latch signal; and a mapping circuit, used to generate a control voltage according to a function of the sampled voltage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.