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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 |
| 6534932 |
Method and arrangement for monitoring a gas discharge lamp |
Mar. 18, 2003 |
| 6534933 |
High power factor electronic ballast with load dependent bus voltage regulation |
Mar. 18, 2003 |
| 6534934 |
Multi-lamp driving system |
Mar. 18, 2003 |
| 6531834 |
Circuit arrangement for controlling an analog voltage signal |
Mar. 11, 2003 |
| 6531835 |
Back lighting source module for liquid crystal display |
Mar. 11, 2003 |
| 6528956 |
Electronic ballast for high-intensity discharge lamps |
Mar. 4, 2003 |
| 6528957 |
Power/energy management control system |
Mar. 4, 2003 |
| 6525479 |
Method and ballast for operating a lamp fitted with a fluorescent tube |
Feb. 25, 2003 |
| 6525487 |
Light driver for shoe |
Feb. 25, 2003 |
| 6525491 |
Stabilizing the operation of gas discharged lamps |
Feb. 25, 2003 |
| 6522088 |
Lamp ignition with automatic compensation for parasitic capacitance |
Feb. 18, 2003 |
| 6522089 |
Electronic ballast and method for arc straightening |
Feb. 18, 2003 |
| 6515430 |
Power supply for lamps |
Feb. 4, 2003 |
| 6515432 |
Circuit device |
Feb. 4, 2003 |
| 6515436 |
Discharge lamp lighting apparatus and lighting appliance employing same |
Feb. 4, 2003 |
| 6515882 |
Power supply apparatus for lamp |
Feb. 4, 2003 |
| 6512338 |
Control device for an appliance adapted to assume a level selected from a range of levels, method of controlling a roller blind using the device, and user module for the device |
Jan. 28, 2003 |
| 6507157 |
Electronic ballast system with dual power and dimming capability |
Jan. 14, 2003 |
| 6507159 |
Controlling method and system for RGB based LED luminary |
Jan. 14, 2003 |
| 6504315 |
Lamp system with electronic ballast |
Jan. 7, 2003 |
| 6504322 |
Discharge lamp operating apparatus |
Jan. 7, 2003 |
| 6504323 |
High pressure discharge lamp driving apparatus, luminaire and high pressure discharge lamp driving method |
Jan. 7, 2003 |
| 6501234 |
Sequential burst mode activation circuit |
Dec. 31, 2002 |
| 6501235 |
Microcontrolled ballast compatible with different types of gas discharge lamps and associated methods |
Dec. 31, 2002 |
| 6498437 |
Short circuit protection for multiple lamp LCD backlight ballasts with PWM dimming |
Dec. 24, 2002 |
| 6498442 |
Self-heating type cold-cathode discharge tube control apparatus |
Dec. 24, 2002 |
| 6495964 |
LED luminaire with electrically adjusted color balance using photodetector |
Dec. 17, 2002 |
| 6495970 |
Lamp stand with multi-stage light modulation |
Dec. 17, 2002 |
| 6495971 |
High intensity discharge lamp ballast |
Dec. 17, 2002 |
| 6495972 |
Dielectric barrier discharge lamp light source |
Dec. 17, 2002 |
| 6495974 |
Power supply for brightness control of a gas-discharge tube |
Dec. 17, 2002 |
| 6492781 |
Closed-loop cold cathode current regulator |
Dec. 10, 2002 |
| 6489724 |
Dimmer switch with electronic control |
Dec. 3, 2002 |
| 6489729 |
Auxiliary lighting system for high intensity discharge lamp |
Dec. 3, 2002 |
| 6489731 |
Power supply and/or ballast system controlled by desired load power spectrum |
Dec. 3, 2002 |
| 6489732 |
Discharge lamp lighting circuit |
Dec. 3, 2002 |
| 6486618 |
Adaptable inverter |
Nov. 26, 2002 |
| 6483259 |
Method and apparatus for determining power frequencies that cause arc instabilities in discharge lamps |
Nov. 19, 2002 |
| 6479950 |
High intensity discharge lamp, driving apparatus for high intensity discharge lamp, and high intensity discharge lamp system |
Nov. 12, 2002 |
| 6476567 |
Control gear for fluorescent lamps |
Nov. 5, 2002 |
| 6476568 |
Gas discharge lamp lighting device |
Nov. 5, 2002 |
| 6476683 |
Adaptive switching speed control for pulse width modulation |
Nov. 5, 2002 |
| 6472827 |
Parallel-resonant inverter-type fluorescent lamp ballast |
Oct. 29, 2002 |
| 6472829 |
Discharge lamp lighting circuit |
Oct. 29, 2002 |
| 6469454 |
Cold cathode fluorescent lamp controller |
Oct. 22, 2002 |
| 6459215 |
Integral lamp |
Oct. 1, 2002 |
| 6452344 |
Electronic dimming ballast |
Sep. 17, 2002 |
| 6452345 |
Discharge lamp operating device |
Sep. 17, 2002 |
| 6453217 |
Frequency switching method by microcomputer and frequency switching device |
Sep. 17, 2002 |
| 6445139 |
Led luminaire with electrically adjusted color balance |
Sep. 3, 2002 |
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