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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 |
| 6300728 |
Method and apparatus for powering fluorescent lighting |
Oct. 9, 2001 |
| 6294880 |
Protection device in a hid lamp ignition circuit |
Sep. 25, 2001 |
| 6294883 |
Method and apparatus for fast heating cold cathode fluorescent lamps |
Sep. 25, 2001 |
| 6291909 |
Solid state relay |
Sep. 18, 2001 |
| 6291942 |
Self-luminous display element driving device |
Sep. 18, 2001 |
| 6291945 |
Discharge lamp lighting device |
Sep. 18, 2001 |
| 6291946 |
System for substantially eliminating transients upon resumption of feedback loop steady state operation after feedback loop interruption |
Sep. 18, 2001 |
| 6291947 |
Circuit arrangement for operating at least one discharge lamp |
Sep. 18, 2001 |
| 6288500 |
Circuit arrangement for detecting rectification of discharge lamps |
Sep. 11, 2001 |
| 6288501 |
Ballast for a discharge lamp |
Sep. 11, 2001 |
| 6285119 |
Light bulb having increased efficiency |
Sep. 4, 2001 |
| 6285138 |
Apparatus for lighting fluorescent lamp |
Sep. 4, 2001 |
| 6281631 |
Vehicle light system circuit which automatically compensates for a light source failure |
Aug. 28, 2001 |
| 6281636 |
Neutral-point inverter |
Aug. 28, 2001 |
| 6281638 |
Converter/inverter full bridge ballast circuit |
Aug. 28, 2001 |
| 6281640 |
Device and method for controlling brightness of radio terminal |
Aug. 28, 2001 |
| 6281641 |
Electronic ballast for one or more lamps |
Aug. 28, 2001 |
| 6281642 |
Ballast for a discharge lamp with false deactivation detection |
Aug. 28, 2001 |
| 6282105 |
Power supply system for a group of lamps |
Aug. 28, 2001 |
| 6278245 |
Buck-boost function type electronic ballast with bus capacitor current sensing |
Aug. 21, 2001 |
| 6274987 |
Power sensing lamp protection circuit for ballasts driving gas discharge lamps |
Aug. 14, 2001 |
| 6274988 |
Open loop current control ballast low pressure mercury germicidal UV lamps |
Aug. 14, 2001 |
| 6268703 |
Gas discharge lamp having a controlled power source and a lamp base |
Jul. 31, 2001 |
| 6265833 |
Apparatus and method for driving self-emitting display device |
Jul. 24, 2001 |
| 6260992 |
Vehicle headlamp device |
Jul. 17, 2001 |
| 6262542 |
Electronic ballast system |
Jul. 17, 2001 |
| 6259215 |
Electronic high intensity discharge ballast |
Jul. 10, 2001 |
| 6259615 |
High-efficiency adaptive DC/AC converter |
Jul. 10, 2001 |
| 6255783 |
Gas discharge lamp power supply with feed forward compensation for input voltage variations |
Jul. 3, 2001 |
| 6246181 |
Discharge lamp lighting device |
Jun. 12, 2001 |
| 6246185 |
High frequency ballast for high intensity discharge lamps |
Jun. 12, 2001 |
| 6242871 |
High field effect neon lamp |
Jun. 5, 2001 |
| 6239552 |
Discharge lamp lighting apparatus driven by internal combustion engine |
May. 29, 2001 |
| 6239558 |
System for driving a cold-cathode fluorescent lamp connected to a piezoelectric transformer |
May. 29, 2001 |
| 6239559 |
Light source using dielectric barrier discharge lamp |
May. 29, 2001 |
| 6232726 |
Ballast scheme for operating multiple lamps |
May. 15, 2001 |
| 6232727 |
Controlling gas discharge lamp intensity with power regulation and end of life protection |
May. 15, 2001 |
| 6232728 |
Discharge lamp apparatus |
May. 15, 2001 |
| 6225751 |
Fluorescent lamp drive circuit of an image formation apparatus |
May. 1, 2001 |
| 6225754 |
Operating method and operating apparatus for a high pressure discharge lamp |
May. 1, 2001 |
| 6220718 |
Floating candles |
Apr. 24, 2001 |
| 6218788 |
Floating IC driven dimming ballast |
Apr. 17, 2001 |
| 6215252 |
Method and apparatus for lamp control |
Apr. 10, 2001 |
| 6215256 |
High-efficient electronic stabilizer with single stage conversion |
Apr. 10, 2001 |
| 6211619 |
Electronic ballast cathode heating circuit |
Apr. 3, 2001 |
| 6211620 |
Ballast for fluorescent lamp |
Apr. 3, 2001 |
| 6211623 |
Fully integrated ballast IC |
Apr. 3, 2001 |
| 6208088 |
Method and ballast for starting a discharge lamp |
Mar. 27, 2001 |
| 6204613 |
Protected dimming control interface for an electronic ballast |
Mar. 20, 2001 |
| 6204614 |
Bi-level output electronic high intensity discharge (HID) ballast system |
Mar. 20, 2001 |
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