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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 |
| 6369526 |
Method and device for operating electronic ballasts for high intensity discharge (HID) lamps |
Apr. 9, 2002 |
| 6366027 |
Circuit device for operating a discharge lamp by means of a high-frequency current |
Apr. 2, 2002 |
| 6366030 |
Starter circuit configuration for a discharge lamp lighting circuit |
Apr. 2, 2002 |
| 6366032 |
Fluorescent lamp ballast with integrated circuit |
Apr. 2, 2002 |
| 6362575 |
Voltage regulated electronic ballast for multiple discharge lamps |
Mar. 26, 2002 |
| 6362578 |
LED driver circuit and method |
Mar. 26, 2002 |
| 6361189 |
Operating theater luminaire including discharge lamps within a reflector |
Mar. 26, 2002 |
| 6359391 |
System and method for overvoltage protection during pulse width modulation dimming of an LCD backlight inverter |
Mar. 19, 2002 |
| 6359393 |
Dimmer for a gas discharge lamp employing frequency shifting |
Mar. 19, 2002 |
| 6359394 |
Scheme for sampling lamp conditions during ignition and steady state modes of lamp operation |
Mar. 19, 2002 |
| 6359395 |
Control circuit for power factor corrected electronic ballasts and power supplies |
Mar. 19, 2002 |
| 6356038 |
Microcomputer-controlled AC power switch controller and DC power supply method and apparatus |
Mar. 12, 2002 |
| 6356365 |
Image reading device and image reading method |
Mar. 12, 2002 |
| 6353293 |
Method and apparatus for controllably generating sparks in an ignition system or the like |
Mar. 5, 2002 |
| 6353295 |
Lamp electronic ballast with a piezoelectric cooling fan |
Mar. 5, 2002 |
| 6351073 |
Self-supplied DC/DC switching power supply |
Feb. 26, 2002 |
| 6351074 |
Discharge lamp device for vehicle |
Feb. 26, 2002 |
| 6351080 |
Circuitry for dimming a fluorescent lamp |
Feb. 26, 2002 |
| 6351081 |
Electronic ballast for high intensity discharge lamp |
Feb. 26, 2002 |
| 6351082 |
Electronic ballast for a fluorescent lamp |
Feb. 26, 2002 |
| 6348768 |
Remote control device of lamp tube |
Feb. 19, 2002 |
| 6348769 |
Electronic ballast |
Feb. 19, 2002 |
| 6346778 |
AC power converter |
Feb. 12, 2002 |
| 6346780 |
Low-voltage, high-efficiency fluorescent lighting for canes and umbrellas |
Feb. 12, 2002 |
| 6344717 |
High frequency, high efficiency electronic lighting system with iodine and/or bromine-based metal halide high pressure discharge lamp |
Feb. 5, 2002 |
| 6339295 |
Light source lighting device and method |
Jan. 15, 2002 |
| 6339298 |
Dimming ballast resonant feedback circuit |
Jan. 15, 2002 |
| 6337544 |
Digital lamp signal processor |
Jan. 8, 2002 |
| 6333606 |
Ballast for discharge lamp |
Dec. 25, 2001 |
| 6333607 |
High voltage discharge lamp device |
Dec. 25, 2001 |
| 6331755 |
Circuit for detecting near or below resonance operation of a fluorescent lamp driven by half-bridge circuit |
Dec. 18, 2001 |
| 6329754 |
Diagnostic system for a ballast of a high-pressure gas discharge lamp for a motor vehicle |
Dec. 11, 2001 |
| 6329767 |
Automatic light dimmer for gas discharge lamps |
Dec. 11, 2001 |
| 6320329 |
Modular high frequency ballast architecture |
Nov. 20, 2001 |
| 6320330 |
Illuminating electronic device and illumination method |
Nov. 20, 2001 |
| 6316880 |
Constant or variable brightness flashlight |
Nov. 13, 2001 |
| 6316882 |
Electronic ballast having a stable reference voltage and a multifunction input for soft dimming and ON/OFF control |
Nov. 13, 2001 |
| 6316883 |
Power-factor correction circuit of electronic ballast for fluorescent lamps |
Nov. 13, 2001 |
| 6316886 |
Method and device for controlling the operational performance of gas discharge lamps |
Nov. 13, 2001 |
| 6316887 |
Multiple ignition high intensity discharge ballast control circuit |
Nov. 13, 2001 |
| 6316888 |
Ballast for at least one gas discharge lamp and method for operating such a ballast |
Nov. 13, 2001 |
| 6313585 |
Method for dimming a fluorescent lamp arranged in the secondary circuit of a transformer and arrangement to implement said method |
Nov. 6, 2001 |
| 6313586 |
Control apparatus capable of improving a rise time characteristic of a light source |
Nov. 6, 2001 |
| 6313587 |
High frequency inductive lamp and power oscillator |
Nov. 6, 2001 |
| 6313588 |
Signal generator and control unit for sensing signals of signal generator |
Nov. 6, 2001 |
| 6313589 |
Power supply circuit for traffic signal lights utilizing LEDs |
Nov. 6, 2001 |
| 6309216 |
Curing system for photohardenable materials |
Oct. 30, 2001 |
| 6310445 |
Led indicator disable circuit and led indicator incorporating the led indicator disable circuit |
Oct. 30, 2001 |
| 6310446 |
Method for adjusting at least one operating parameter of an operating unit for electric lamps |
Oct. 30, 2001 |
| 6310447 |
Method for operating at least one fluorescent lamp, and electronic ballast therefor |
Oct. 30, 2001 |
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