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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:

Class Number Class Name Patents
315/308 Regulator responsive to plural conditions 1,133
315/310 Shunted impedance-type regulator 59
315/309 Thermal responsive regulator 277
315/311 Variable impedance-type regulator 116


Patents under this class:
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Patent Number Title Of Patent Date Issued
8193725 Voltage converter, backlight module control system and control method thereof Jun. 5, 2012
8193723 LED current-balance driving circuit Jun. 5, 2012
8193720 Electrodeless lamp protecting device Jun. 5, 2012
8193718 Diagnosis circuit apparatus and lamp ballast circuit using the same Jun. 5, 2012
8188683 Poly-chromatic light-emitting diode (LED) lighting system May. 29, 2012
8188676 Systems and methods for driving light-emitting diodes May. 29, 2012
8188675 Method for operating an illumination system with sequential color filtering and a high pressure discharge lamp May. 29, 2012
8188671 Power factor control for an LED bulb driver circuit May. 29, 2012
8188667 Lighting device and lighting system for a vehicle May. 29, 2012
8183799 Starter stopper for high intensity discharge lighting May. 22, 2012
8183797 90-260Vac dimmable MR16 LED lamp May. 22, 2012
8183796 Stepwise repairing for electrode of discharge lamp May. 22, 2012
8183795 LED current-supplying circuit and LED current-controlling circuit May. 22, 2012
8183792 Backlight module with dynamic open-lamp protection and related driving method May. 22, 2012
8183791 System and method for preventing low dimming current startup flash May. 22, 2012
8183789 Lighting system for avionics applications and control method thereof May. 22, 2012
8183788 Led luminance control circuit and backlight source of liquid crystal display May. 22, 2012
8183783 Power failure reporting in a networked light May. 22, 2012
8179059 Circuit and method for controlling light emitting device, and integrated circuit therefor May. 15, 2012
8179058 Determine a setting of a TRIAC dimmer through induced relaxation oscillation May. 15, 2012
8179057 Electronic ballast for discharge lamp May. 15, 2012
8179054 LED power supply May. 15, 2012
8179052 Reduced power loss in electronic ballasts May. 15, 2012
8174205 Lighting devices and methods for lighting May. 8, 2012
8174204 Lighting system with power factor correction control data determined from a phase modulated signal May. 8, 2012
8174202 Lamp driving circuit May. 8, 2012
8172423 Illumination apparatus May. 8, 2012
8169163 Control device and LED light emitting device using the control device May. 1, 2012
8169160 Circuits and methods for driving light sources May. 1, 2012
8169159 Boost converter LED driver and controller thereof May. 1, 2012
8169158 Cold cathode tube lighting device May. 1, 2012
8169157 Passive current balance driving apparatus May. 1, 2012
8169149 Circuit arrangement and method for the operation of at least one discharge lamp May. 1, 2012
8164279 Method for controlling light source driving circuit Apr. 24, 2012
8164278 Output buffer and source driver using the same Apr. 24, 2012
8164277 LED system for producing light Apr. 24, 2012
8164276 LED drive device, LED drive method and lighting system Apr. 24, 2012
8164275 Drive circuit for high-brightness light emitting diodes Apr. 24, 2012
8164273 Light emitting diode circuits for general lighting Apr. 24, 2012
8164271 Uni-directional light emitting diode drive circuit in bi-directional power series resonance Apr. 24, 2012
8164269 Discharge lamp lighting device and lighting fixture Apr. 24, 2012
8160752 Managing energy usage Apr. 17, 2012
8159153 LED light sources with improved thermal compensation Apr. 17, 2012
8159151 Control circuit for inverter Apr. 17, 2012
8159150 Method and apparatus for light intensity control Apr. 17, 2012
8159149 Systems and methods for security controlled LED lighting fixture Apr. 17, 2012
8159146 Apparatus and method for pulsed L.E.D. illumination Apr. 17, 2012
8159145 Synchronous operating system for discharge tube lighting apparatuses, discharge tube lighting apparatus, and semiconductor integrated circuit Apr. 17, 2012
8159141 Methods and apparatus for driving discharge lamps Apr. 17, 2012
8154222 Pulse-width modulation current control with reduced transient time Apr. 10, 2012

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