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Class Information
Number: 315/307
Name: Electric lamp and discharge devices: systems > Current and/or voltage regulation > Automatic regulation
Description: Systems wherein the regulation of the current or potential supplied to the load device is automatically controlled in response to some condition.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6642668 |
Discharge lamp device for reducing noise radiation and surge pulse current |
Nov. 4, 2003 |
| 6642674 |
Twin dimming controller for backlight system |
Nov. 4, 2003 |
| 6639367 |
Control circuit employing preconditioned feedback amplifier for initializing VCO operating frequency |
Oct. 28, 2003 |
| 6639369 |
Electronic dimmable ballast for high intensity discharge lamp |
Oct. 28, 2003 |
| 6635991 |
Method of adjusting the light spectrum of a gas discharge lamp, gas discharge lamp, and luminaire for said lamp |
Oct. 21, 2003 |
| 6630801 |
Method and apparatus for sensing the color point of an RGB LED white luminary using photodiodes |
Oct. 7, 2003 |
| 6628092 |
Ballast and method of feeding a fluorescent lamp |
Sep. 30, 2003 |
| 6628093 |
Power inverter for driving alternating current loads |
Sep. 30, 2003 |
| 6624598 |
Ballast and method of feeding a fluorescent lamp |
Sep. 23, 2003 |
| 6624599 |
Compact single-stage electronic ballast circuit for emergency lighting applications |
Sep. 23, 2003 |
| 6624600 |
Lamp power measurement circuit |
Sep. 23, 2003 |
| 6621222 |
Power-saving lamp |
Sep. 16, 2003 |
| 6621236 |
Discharge lamp lighting device and illumination device |
Sep. 16, 2003 |
| 6621238 |
Power factor correction circuit with faster bus charging rate during startup |
Sep. 16, 2003 |
| 6617805 |
Ballast control IC with power factor correction |
Sep. 9, 2003 |
| 6617808 |
Discharge-lamp lighting circuit |
Sep. 9, 2003 |
| 6614192 |
Electronic ballast circuit |
Sep. 2, 2003 |
| 6611111 |
Load drive circuit |
Aug. 26, 2003 |
| 6611112 |
Appliance for discharge lamps with reliable starting |
Aug. 26, 2003 |
| 6611113 |
Cool cathode tube control circuit |
Aug. 26, 2003 |
| 6608452 |
Xenon power supply |
Aug. 19, 2003 |
| 6605905 |
Discharge lamp driving apparatus and lighting fixture using the apparatus |
Aug. 12, 2003 |
| 6605908 |
Stopper protection circuit of electronic ballast for fluorescent lamp |
Aug. 12, 2003 |
| 6603275 |
Electronic starter for fluorescent lamps |
Aug. 5, 2003 |
| 6600275 |
Remote control and adjustable device for halogen lamp |
Jul. 29, 2003 |
| 6596977 |
Average light sensing for PWM control of RGB LED based white light luminaries |
Jul. 22, 2003 |
| 6597127 |
Discharge lamp operating apparatus, self-ballasted discharge lamp, dimmer and illumination kit for dimming |
Jul. 22, 2003 |
| 6597131 |
Discharge lamp lighting circuit |
Jul. 22, 2003 |
| 6593708 |
Electronic circuit for the gradual start-up of electric loads, particularly halogen lamps |
Jul. 15, 2003 |
| 6590350 |
Lighting system with a high intensity discharge lamp |
Jul. 8, 2003 |
| 6586887 |
High-frequency power supply apparatus for plasma generation apparatus |
Jul. 1, 2003 |
| 6583570 |
Discharge lamp device for vehicle |
Jun. 24, 2003 |
| 6577066 |
Compact self-ballasted fluorescent lamp |
Jun. 10, 2003 |
| 6577076 |
Adaptive control for half-bridge universal lamp drivers |
Jun. 10, 2003 |
| 6577078 |
Electronic ballast with lamp run-up current regulation |
Jun. 10, 2003 |
| 6573666 |
Digital regulation of fluorescent lamps |
Jun. 3, 2003 |
| 6570334 |
Gas-discharge lamp including a fault protection circuit |
May. 27, 2003 |
| 6570342 |
Fluorescent lamp and power converter |
May. 27, 2003 |
| 6570343 |
Device for turning on light and illumination apparatus |
May. 27, 2003 |
| 6570344 |
Lamp grounding and leakage current detection system |
May. 27, 2003 |
| 6570347 |
Gas-discharge lamp having brightness control |
May. 27, 2003 |
| 6566816 |
Vehicular lamp control apparatus |
May. 20, 2003 |
| 6555971 |
High frequency, high efficiency quick restart lighting system |
Apr. 29, 2003 |
| 6555972 |
High frequency, high efficiency electronic lighting system with metal halide lamp |
Apr. 29, 2003 |
| 6555973 |
Arrangement in connection with discharge lamp |
Apr. 29, 2003 |
| 6552498 |
Method and circuit for controlling current in a high pressure discharge lamp |
Apr. 22, 2003 |
| 6552501 |
Discharge lamp lighting circuit with protection circuit |
Apr. 22, 2003 |
| 6548964 |
Discharge lamp lighting apparatus and luminaire using the same |
Apr. 15, 2003 |
| 6548967 |
Universal lighting network methods and systems |
Apr. 15, 2003 |
| 6545430 |
High-pressure discharge lamp, and manufacturing method, lighting method, and lighting device for the same |
Apr. 8, 2003 |
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