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Class Information
Number: 315/291
Name: Electric lamp and discharge devices: systems > Current and/or voltage regulation
Description: Systems which include means to regulate the current and/or voltage supplied to the load device.
Sub-classes under this class:
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 6858995 |
Energy-saving dimming apparatus |
Feb. 22, 2005 |
| 6858996 |
Driver IC for use with simple microcontrol |
Feb. 22, 2005 |
| 6858997 |
Circuit synchronization apparatus and method |
Feb. 22, 2005 |
| 6856098 |
Converter for converting an AC power main voltage to a voltage suitable for driving a lamp |
Feb. 15, 2005 |
| 6856101 |
Method and apparatus for switching of parallel capacitors in an HID bi-level dimming system using voltage suppression |
Feb. 15, 2005 |
| 6856102 |
Three-stage electronic ballast for metal halide lamps |
Feb. 15, 2005 |
| 6853150 |
Light emitting diode driver |
Feb. 8, 2005 |
| 6853153 |
System and method for powering cold cathode fluorescent lighting |
Feb. 8, 2005 |
| 6853154 |
Open loop bi-level ballast control |
Feb. 8, 2005 |
| 6853155 |
Electric discharge lamp device |
Feb. 8, 2005 |
| 6853156 |
Piezoelectric ceramic light starter |
Feb. 8, 2005 |
| 6850016 |
Rare gas discharge lamp lighting apparatus |
Feb. 1, 2005 |
| 6847175 |
Lighting ballast with reverse current flow protection |
Jan. 25, 2005 |
| 6841947 |
Systems and methods for controlling brightness of an avionics display |
Jan. 11, 2005 |
| 6841950 |
Dimmable electrolumanescent lamp drivers and method therefor |
Jan. 11, 2005 |
| 6841951 |
Single stage HID electronic ballast |
Jan. 11, 2005 |
| 6841952 |
Electronic stabilizer |
Jan. 11, 2005 |
| 6838838 |
Power feeding apparatus for discharge lamp |
Jan. 4, 2005 |
| 6836074 |
Organic electro-luminescence display driving system and mobile communication terminal used this system |
Dec. 28, 2004 |
| 6836078 |
Circuit for lighting HID lamp |
Dec. 28, 2004 |
| 6836079 |
Light emitting lamp |
Dec. 28, 2004 |
| 6836157 |
Method and apparatus for driving LEDs |
Dec. 28, 2004 |
| 6833678 |
Circuit arrangement for operating discharge lamps |
Dec. 21, 2004 |
| 6834208 |
Method and apparatus for providing distributed control of a home automation and control system |
Dec. 21, 2004 |
| 6831423 |
High Q impedance matching inverter circuit with automatic line regulation |
Dec. 14, 2004 |
| 6831426 |
Electronic device, or dimmer, for regulating the power supply applied to a load |
Dec. 14, 2004 |
| 6828737 |
Discharge lamp operating circuit with a current regulation circuit and a circuit for detection of the proximity to capacitive operation |
Dec. 7, 2004 |
| 6828739 |
Light emitting device |
Dec. 7, 2004 |
| 6828740 |
Electrodeless discharge lamp operating apparatus, electrodeless compact self-ballasted fluorescent lamp and discharge lamp operating apparatus |
Dec. 7, 2004 |
| 6825619 |
Feedback-controlled LED switching |
Nov. 30, 2004 |
| 6825620 |
Inductively coupled ballast circuit |
Nov. 30, 2004 |
| 6822399 |
Half-bridge circuit |
Nov. 23, 2004 |
| 6822401 |
Fault management method for electronic ballast |
Nov. 23, 2004 |
| 6822402 |
Circuit synchronization apparatus and method |
Nov. 23, 2004 |
| 6819060 |
Power line monitor and interrupt arrangement for averting premature lamp mortality in low voltage conditions |
Nov. 16, 2004 |
| 6819061 |
Power supply apparatus for light source |
Nov. 16, 2004 |
| 6819062 |
Discharge lamp lighting apparatus, light source apparatus and projection type display apparatus |
Nov. 16, 2004 |
| 6819063 |
Sensing voltage for fluorescent lamp protection |
Nov. 16, 2004 |
| 6819089 |
Power factor correction circuit with high-voltage semiconductor component |
Nov. 16, 2004 |
| 6815908 |
Dimmable self-oscillating electronic ballast for fluorescent lamp |
Nov. 9, 2004 |
| 6815910 |
Device for operating a high pressure discharge lamp |
Nov. 9, 2004 |
| 6815912 |
Discharge lamp lighting apparatus and discharge lamp apparatus |
Nov. 9, 2004 |
| 6812623 |
Piezoelectric transformer |
Nov. 2, 2004 |
| 6809483 |
Method and apparatus for arc detection and protection for electronic ballasts |
Oct. 26, 2004 |
| 6806658 |
Method for making an LED |
Oct. 19, 2004 |
| 6803730 |
Single stage PFC + ballast control circuit/general purpose power converter |
Oct. 12, 2004 |
| 6801003 |
Systems and methods for synchronizing lighting effects |
Oct. 5, 2004 |
| 6801007 |
Electrically-operated actuator system |
Oct. 5, 2004 |
| 6794827 |
Multiple ballasts operable from a single DC bus |
Sep. 21, 2004 |
| 6794828 |
Driving serially connected high intensity discharge lamps |
Sep. 21, 2004 |
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