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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 |
| 7285922 |
Driving apparatus for CCFL |
Oct. 23, 2007 |
| 7285921 |
Electric current balancing device |
Oct. 23, 2007 |
| 7282872 |
Discharge lamp lighting circuit |
Oct. 16, 2007 |
| 7282871 |
Backlight inverter for inductively detecting current |
Oct. 16, 2007 |
| 7282870 |
Driving apparatus for CCFL |
Oct. 16, 2007 |
| 7282868 |
Inverter circuit for discharge lamps for multi-lamp lighting and surface light source system |
Oct. 16, 2007 |
| 7280375 |
Circuit arrangement for operating at least one light-emitting diode |
Oct. 9, 2007 |
| 7279958 |
Synthesized resonation for an EL driver circuit |
Oct. 9, 2007 |
| 7279853 |
Fluorescent lamp dimmer control |
Oct. 9, 2007 |
| 7279852 |
Apparatus and method for striking a fluorescent lamp |
Oct. 9, 2007 |
| 7279844 |
Electronic ballast |
Oct. 9, 2007 |
| 7276862 |
Stabilizer circuit for high-voltage discharge lamp |
Oct. 2, 2007 |
| 7276861 |
System and method for driving LED |
Oct. 2, 2007 |
| 7276855 |
Auxilary lighting circuit for high intensity discharge system |
Oct. 2, 2007 |
| 7275835 |
Projector for changing driving frequency for driving light source lamp within allowable frequency range |
Oct. 2, 2007 |
| 7274178 |
Multi-lamp driver with active current regulator |
Sep. 25, 2007 |
| 7274159 |
Backlight for a display device |
Sep. 25, 2007 |
| 7274158 |
System for driving plural lamps |
Sep. 25, 2007 |
| 7274157 |
Lamp operation controller and controlling method of lamp operation |
Sep. 25, 2007 |
| 7274155 |
Flash lamp drive circuit |
Sep. 25, 2007 |
| 7274152 |
Rare gas fluorescent lamp lighting apparatus |
Sep. 25, 2007 |
| 7274149 |
Lamp with integral pulse width modulated voltage control circuit |
Sep. 25, 2007 |
| 7274148 |
Lamp having fixed forward phase switching power supply with time-based triggering |
Sep. 25, 2007 |
| 7271642 |
Charge pump drive circuit for a light emitting diode |
Sep. 18, 2007 |
| 7271552 |
Ballast circuit for operating a gas discharge lamp |
Sep. 18, 2007 |
| 7271551 |
Driver protection circuit for a push-pull type discharge lamp |
Sep. 18, 2007 |
| 7271550 |
Dimmer circuit arrangement |
Sep. 18, 2007 |
| 7271549 |
Current balancing circuit for a multi-lamp system |
Sep. 18, 2007 |
| 7271546 |
Lighting device for dielectric barrier discharge lamp |
Sep. 18, 2007 |
| 7271544 |
Lighting apparatus for illumination light source |
Sep. 18, 2007 |
| 7270790 |
Sterilizer monitoring and controlling system and method |
Sep. 18, 2007 |
| 7268501 |
Multi-lamp driving circuit |
Sep. 11, 2007 |
| 7268500 |
Control device for multiple lamp currents of liquid crystal display backlight source |
Sep. 11, 2007 |
| 7265681 |
Light emitted diode driving apparatus |
Sep. 4, 2007 |
| 7265503 |
Applications of halogen convertor control IC |
Sep. 4, 2007 |
| 7265502 |
Dimming apparatus of light emitting unit |
Sep. 4, 2007 |
| 7265501 |
Mobile light |
Sep. 4, 2007 |
| 7265500 |
Backlight assembly for directly backlighting displays |
Sep. 4, 2007 |
| 7265499 |
Current-mode direct-drive inverter |
Sep. 4, 2007 |
| 7262752 |
Series led backlight control circuit |
Aug. 28, 2007 |
| 7262562 |
Method for driving a fluorescent lamp and an inverter circuit for performing such a method |
Aug. 28, 2007 |
| 7262561 |
Method for controlling power supply through multiple modulation modes |
Aug. 28, 2007 |
| 7262560 |
Regulating a light source using a light-to-frequency converter |
Aug. 28, 2007 |
| 7262559 |
LEDS driver |
Aug. 28, 2007 |
| 7262558 |
Lamp current control device |
Aug. 28, 2007 |
| 7262554 |
Lamp with integral voltage converter having phase-controlled dimming circuit with hysteresis control for reducing RMS load voltage |
Aug. 28, 2007 |
| 7259527 |
Stepped dimming ballast for fluorescent lamps |
Aug. 21, 2007 |
| 7259526 |
Method and apparatus for controlling driving current of illumination source in a display system |
Aug. 21, 2007 |
| 7259525 |
High efficiency switching LED driver |
Aug. 21, 2007 |
| 7259524 |
Apparatus and methods for regulating delivery of electrical energy |
Aug. 21, 2007 |
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