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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 |
| 7564197 |
Discharge tube operation device |
Jul. 21, 2009 |
| 7564196 |
Power supply device, and LED device and electronic device using same |
Jul. 21, 2009 |
| 7564195 |
Circuit of the electronic ballast with the capability of automatic restart |
Jul. 21, 2009 |
| 7564194 |
Method for detecting lamp current and lamp driving circuit using the method for detecting the lamp current |
Jul. 21, 2009 |
| 7564193 |
DC-AC converter having phase-modulated, double-ended, full-bridge topology for powering high voltage load such as cold cathode fluorescent lamp |
Jul. 21, 2009 |
| 7564191 |
Inverter having single switching device |
Jul. 21, 2009 |
| RE40843 |
Electronic dimmable ballast for high intensity discharge lamp |
Jul. 14, 2009 |
| 7560879 |
Method and apparatus for DC to AC power conversion for driving discharge lamps |
Jul. 14, 2009 |
| 7560878 |
Circuit arrangement and method for operating high-pressure discharge lamps |
Jul. 14, 2009 |
| 7560877 |
Operation circuit for a discharge lamp and device for operation of a discharge lamp and a light source device |
Jul. 14, 2009 |
| 7560867 |
Starter for a gas discharge light source |
Jul. 14, 2009 |
| 7557522 |
Preheat control device for modulating voltage of gas-discharge lamp |
Jul. 7, 2009 |
| 7557521 |
LED power control methods and apparatus |
Jul. 7, 2009 |
| 7557520 |
Light source driving circuit |
Jul. 7, 2009 |
| 7557519 |
Controlling power to light-emitting device |
Jul. 7, 2009 |
| 7557518 |
Solid-state, color-balanced backlight with wide illumination range |
Jul. 7, 2009 |
| 7557516 |
Resonant inverter |
Jul. 7, 2009 |
| 7554273 |
Protection for external electrode fluorescent lamp system |
Jun. 30, 2009 |
| 7553152 |
Flame detector trapezoidal excitation generator output control circuit and method |
Jun. 30, 2009 |
| 7550932 |
Control method and device for a power-converting module that drives a light-emitting component |
Jun. 23, 2009 |
| 7550930 |
Method and device for lighting an electronic or electromechanical apparatus |
Jun. 23, 2009 |
| 7548150 |
Method for the allocation of short addresses in illumination systems |
Jun. 16, 2009 |
| 7548030 |
Color control for dynamic scanning backlight |
Jun. 16, 2009 |
| 7545106 |
Discharge lamp driving device and driving method |
Jun. 9, 2009 |
| 7545105 |
Driving circuit for piezoelectric lamps |
Jun. 9, 2009 |
| 7544951 |
Electron gun assembly |
Jun. 9, 2009 |
| 7541751 |
Soft start control circuit for lighting |
Jun. 2, 2009 |
| 7541750 |
DC to DC converter with load open detection and related method thereof |
Jun. 2, 2009 |
| 7541748 |
Discharge lamp lighting device |
Jun. 2, 2009 |
| 7541746 |
Lamp driver circuit with power factor correction circuit coupled to direct-current to direct-current power converter |
Jun. 2, 2009 |
| 7541745 |
Fluorescent lamp assembly having multiple settings and method |
Jun. 2, 2009 |
| 7538499 |
Method and apparatus for controlling thermal stress in lighting devices |
May. 26, 2009 |
| 7535185 |
Method and system for implementing power reduction algorithms in a night vision system power system |
May. 19, 2009 |
| 7531971 |
Backlight units and display devices |
May. 12, 2009 |
| 7531970 |
Power source driving circuits and controllers thereof |
May. 12, 2009 |
| 7531966 |
Lamp ballast circuit |
May. 12, 2009 |
| 7528557 |
Electronic controller for high-power gas discharging lamp |
May. 5, 2009 |
| 7528555 |
LED controller IC using only one pin to dim and set a maximum LED current |
May. 5, 2009 |
| 7528554 |
Electronic ballast having a boost converter with an improved range of output power |
May. 5, 2009 |
| 7528553 |
Lighting control apparatus for vehicle lighting device |
May. 5, 2009 |
| 7525780 |
Liquid crystal television and backlight power supplying circuit |
Apr. 28, 2009 |
| 7525293 |
Power supply switching circuit for a halogen lamp |
Apr. 28, 2009 |
| 7525261 |
Circuit arrangement for operating a high pressure discharge lamp |
Apr. 28, 2009 |
| 7525260 |
Discharge lamp lighting apparatus |
Apr. 28, 2009 |
| 7522211 |
Studio light |
Apr. 21, 2009 |
| 7521912 |
Power supply apparatus |
Apr. 21, 2009 |
| 7521879 |
Device for driving light emitting diode |
Apr. 21, 2009 |
| 7521877 |
Dimmer circuit for a discharge lighting apparatus |
Apr. 21, 2009 |
| 7521874 |
Dimmable ballast control integrated circuit |
Apr. 21, 2009 |
| 7521873 |
Circuit designs and control techniques for high frequency electronic ballasts for high intensity discharge lamps |
Apr. 21, 2009 |
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