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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 |
| 6201354 |
Device for controlling light sources |
Mar. 13, 2001 |
| 6201357 |
Overheating protection device for a control device in gas discharge lamps |
Mar. 13, 2001 |
| 6198230 |
Dual-use electronic transceiver set for wireless data networks |
Mar. 6, 2001 |
| 6198232 |
Discharge lamp circuit with dual ignition coils |
Mar. 6, 2001 |
| 6198234 |
Dimmable backlight system |
Mar. 6, 2001 |
| 6198236 |
Methods and apparatus for controlling the intensity of a fluorescent lamp |
Mar. 6, 2001 |
| 6194841 |
Discharge lamp lighting device |
Feb. 27, 2001 |
| 6194845 |
Ballasts with tapped inductor arrangements for igniting and powering high intensity discharge lamps |
Feb. 27, 2001 |
| 6191541 |
Solid state tail light for aircraft |
Feb. 20, 2001 |
| 6188183 |
High intensity discharge lamp ballast |
Feb. 13, 2001 |
| 6188184 |
Electronic ballast with reduced operating frequency after lamp ignition |
Feb. 13, 2001 |
| 6184630 |
Electronic lamp ballast with voltage source power feedback to AC-side |
Feb. 6, 2001 |
| 6184632 |
Lighting apparatus including circuit to detect an electrical characteristic of a component of a lamp mounted in the apparatus |
Feb. 6, 2001 |
| 6181066 |
Frequency modulated ballast with loosely coupled transformer for parallel gas discharge lamp control |
Jan. 30, 2001 |
| 6181074 |
Operating circuit for discharge lamps with switchable operating states |
Jan. 30, 2001 |
| 6181075 |
Power supply circuit for gas discharge tube |
Jan. 30, 2001 |
| 6181077 |
Safe and reliable power supply for xenon arc lamp |
Jan. 30, 2001 |
| 6181084 |
Ballast circuit for high intensity discharge lamps |
Jan. 30, 2001 |
| 6181085 |
Electronic ballast with output control feature |
Jan. 30, 2001 |
| 6181086 |
Electronic ballast with embedded network micro-controller |
Jan. 30, 2001 |
| 6181087 |
Discharge lamp operating device |
Jan. 30, 2001 |
| 6177764 |
Methods and apparatus for the closed loop control of magnetron current |
Jan. 23, 2001 |
| 6177769 |
Electric Ballast with selective power dissipation |
Jan. 23, 2001 |
| 6175195 |
Triac dimmable compact fluorescent lamp with dimming interface |
Jan. 16, 2001 |
| 6175200 |
Device for operating a gas discharge lamp with reduced average lamp power |
Jan. 16, 2001 |
| 6172466 |
Phase-controlled dimmable ballast |
Jan. 9, 2001 |
| 6172468 |
Method and apparatus for igniting a gas discharge lamp |
Jan. 9, 2001 |
| 6172469 |
Device for operating a gas discharge lamp |
Jan. 9, 2001 |
| 6169373 |
Work light |
Jan. 2, 2001 |
| 6169375 |
Lamp adaptable ballast circuit |
Jan. 2, 2001 |
| 6163114 |
Starting circuit for low-pressure discharge lamp |
Dec. 19, 2000 |
| 6163115 |
High-pressure discharge lamp lighting apparatus system |
Dec. 19, 2000 |
| 6160361 |
For improvements in a lamp type recognition scheme |
Dec. 12, 2000 |
| 6160362 |
Ignition scheme for a high intensity discharge lamp |
Dec. 12, 2000 |
| 6157142 |
Hid ballast circuit with arc stabilization |
Dec. 5, 2000 |
| 6157143 |
Fluroescent lamps at full front surface luminance for backlighting flat panel displays |
Dec. 5, 2000 |
| 6150761 |
Discharge lamp ballast circuit with charge pump igniter |
Nov. 21, 2000 |
| 6150768 |
Ballast with active power factor correction |
Nov. 21, 2000 |
| 6150772 |
Gas discharge lamp controller |
Nov. 21, 2000 |
| 6150773 |
Model and method for high-frequency electronic ballast design |
Nov. 21, 2000 |
| 6147458 |
Circuit arrangement and signalling light provided with the circuit arrangement |
Nov. 14, 2000 |
| 6147459 |
Voltage-controlled ballast for gas-discharge lamps |
Nov. 14, 2000 |
| 6147461 |
Operating apparatus of discharge lamp |
Nov. 14, 2000 |
| 6147462 |
Ballast |
Nov. 14, 2000 |
| 6147463 |
Electronic ballast for the operation of at least one gas discharge lamp |
Nov. 14, 2000 |
| 6144160 |
Lamp with a temperature-controlled automatically protecting circuit |
Nov. 7, 2000 |
| 6144169 |
Triac dimmable electronic ballast with single stage feedback power factor inverter |
Nov. 7, 2000 |
| 6144171 |
Ignitor for high intensity discharge lamps |
Nov. 7, 2000 |
| 6144172 |
Method and driving circuit for HID lamp electronic ballast |
Nov. 7, 2000 |
| 6144174 |
Control device for low-pressure fluorescent lamp |
Nov. 7, 2000 |
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