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Patent AT-E400984-T1: [Translated] DIGITAL CONTROL FOR FLUORESCENT LAMPS
A method to control the illumination intensity of a gas discharge lamp is achieved. The method comprises, first, converting an analog lamp illumination signal into a digital lamp illumination signal. The analog lamp illumination signal is a function of the illumination intensity of a gas discharge lamp. Second, digital target signal is subtracted from the digital lamp illumination signal to create a digital error signal. Third, a digital frequency set point is adjusted from a current value to a new value based on the digital error signal. The digital frequency set point is a high resolution digital value. Fourth, the current value and the new value are averaged by a digital delta sigma modulator to create a smoothed frequency set point. The smoothed frequency set point is a medium resolution value. Finally, an oscillating voltage signal is generated with a drive frequency based on the smoothed frequency set point. The drive frequency determines the illumination intensity of the gas discharge lamp.
Complete Metadata
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| accessLevel | public |
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"009:25"
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| description | A method to control the illumination intensity of a gas discharge lamp is achieved. The method comprises, first, converting an analog lamp illumination signal into a digital lamp illumination signal. The analog lamp illumination signal is a function of the illumination intensity of a gas discharge lamp. Second, digital target signal is subtracted from the digital lamp illumination signal to create a digital error signal. Third, a digital frequency set point is adjusted from a current value to a new value based on the digital error signal. The digital frequency set point is a high resolution digital value. Fourth, the current value and the new value are averaged by a digital delta sigma modulator to create a smoothed frequency set point. The smoothed frequency set point is a medium resolution value. Finally, an oscillating voltage signal is generated with a drive frequency based on the smoothed frequency set point. The drive frequency determines the illumination intensity of the gas discharge lamp. |
| distribution |
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"description": "Access the complete Patent AT-E400984-T1: [Translated] DIGITAL CONTROL FOR FLUORESCENT LAMPS on the official website.",
"downloadURL": "https://pubchem.ncbi.nlm.nih.gov/patent/AT-E400984-T1"
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| identifier | https://healthdata.gov/api/views/8b3q-kmsv |
| issued | 2025-09-05 |
| keyword |
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"chemistry",
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| landingPage | https://healthdata.gov/d/8b3q-kmsv |
| modified | 2025-09-06 |
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| publisher |
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| theme |
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| title | Patent AT-E400984-T1: [Translated] DIGITAL CONTROL FOR FLUORESCENT LAMPS |
