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| Number | Title | Issue Date |
| 7982402 | Integrated igniter base for ceramic metal halide light source A PAR38 light source assembly for use with a fixture having PAR38 socket connected to a ballast circuit for generating a ballast voltage. An electrically insulating housing supports a PAR38 screw base and encloses a CMH lamp and a circuit board providing a high volt... | 07/19/2011 |
| 7439684 | Inductive lamp assembly An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of powe... | 10/21/2008 |
| 7368875 | Discharge lamp lighting device A through hole that is slightly larger than a size of a rear end of a transformer container is formed in a rear cover constituting a part of an external wall of a starting circuit unit. The transformer container houses therein a transformer and constitutes a transfo... | 05/06/2008 |
| 7365501 | Inverter transformer An inverter transformer includes a coil unit including a bobbin and a plurality of windings, and a transformer core unit. The bobbin is formed with a core-receiving compartment, and includes first, second and third coil winding portions. The windings are wound aroun... | 04/29/2008 |
| 7358689 | Phase-control power controller for converting a line voltage to a RMS load voltage A phase-control power controller converts a line voltage to an RMS load voltage and includes a phase-control clipping circuit that clips a load voltage to provide the RMS load voltage. The power controller may be in a base of a lamp and connected to a lamp terminal.... | 04/15/2008 |
| 7352134 | Lamp containing fixed reverse phase switching power supply with time-based phase pulse triggering control A lamp contains a lamp voltage conversion circuit within the lamp and connected to a lamp terminal. The voltage conversion circuit includes a phase-control clipping circuit that clips a load voltage and provides an RMS load voltage to the lamp. The phase-control cli... | 04/01/2008 |
| 7342359 | Forward/reverse hybrid switching power supply with time-based pulse triggering control A phase-control power controller that converts a line voltage to an RMS load voltage includes a fixed phase forward/reverse hybrid phase-control clipping circuit that performs phase-control clipping of a load voltage to provide an RMS load voltage. A conduction angl... | 03/11/2008 |
| 7339790 | Halogen lamps with mains-to-low voltage drivers A halogen lamp includes a mains base and a converter operably connected to the mains base. The converter has a lamp socket, a toroid transformer, and a heat sink disposed within a center opening of the toroid transformer. A lamp is removably disposed in the lamp soc... | 03/04/2008 |
| 7319297 | Balanced current lamp module and multi-lamp circuit A balanced current lamp module driven by a power source includes a first balanced current unit, a second balanced current unit and a balanced transformer. The first balanced current unit includes a first transformer, a first lamp and a second lamp. The first transfo... | 01/15/2008 |
| 7301291 | Power controller having current limited RMS regulated output A power controller converts a line voltage to an RMS load voltage for a lamp, and includes a switch and a microcontroller that operates the switch to define the RMS load voltage. The microcontroller senses a load voltage of the lamp, compares the sensed load voltage... | 11/27/2007 |
| 7301427 | Transformer having auxiliary winding coil for sensing magnetic flux balance and driving circuit using the same A transformer having auxiliary winding coils for sensing magnetic flux balance is disclosed. The transformer comprises a first winding part having a first channel, a second winding part having a second channel a third winding part having a third channel, a primary w... | 11/27/2007 |
| 7294973 | Discharge tube lighting apparatus, light source apparatus, and display apparatus A discharge tube lighting apparatus is used to drive a plurality of discharge tubes. The apparatus includes a balance coil having a winding input end and a plurality of winding output ends to which the discharge tubes are connected individually; a power section for ... | 11/13/2007 |
| 7291984 | Method of reducing RMS load voltage in a lamp using pulse width modulation A method of converting a line voltage to an RMS load voltage in a lamp includes modulating a load voltage with a pulse width modulation circuit that is entirely within the lamp and provides an RMS load voltage to a light emitting element of the lamp. Conduction is t... | 11/06/2007 |
| 7279843 | Inductively powered apparatus An inductive power supply system for providing power to one or more inductively powered devices. The system includes a mechanism for varying the physical distance or the respective orientation between the primary coil and secondary coil to control the amount of powe... | 10/09/2007 |
| 7274148 | Lamp having fixed forward phase switching power supply with time-based triggering A lamp contains a lamp voltage conversion circuit that is entirely within a base for converting a line voltage at a lamp terminal to an RMS load voltage at a light emitting element. The voltage conversion circuit includes a forward clipping circuit with a three-term... | 09/25/2007 |
| 7274149 | Lamp with integral pulse width modulated voltage control circuit A lamp has a voltage controller that converts a line voltage to an RMS load voltage suitable for operation of the lamp's light emitting element, where the voltage controller is entirely within a lamp base and uses pulse width modulation to define the RMS load voltag... | 09/25/2007 |
| 7274156 | Power supply circuit and transformer thereof A power supply circuit for a first and a second lamps and the transformer thereof is provided. The power supply circuit comprises a driving circuit and a transformer. The transformer includes a magnetic core, a primary coil set, a secondary coil, a first coil and a ... | 09/25/2007 |
| 7262554 | Lamp with integral voltage converter having phase-controlled dimming circuit with hysteresis control for reducing RMS load voltage An incandescent lamp includes a lamp voltage conversion circuit within the lamp and connected to a lamp terminal, where the voltage conversion circuit converts a first line voltage at the lamp terminal to a second RMS load voltage usable by a light emitting element ... | 08/28/2007 |
| 7256548 | Electric circuit for igniting a discharge lamp, and electric component module and discharge lamp incorporating such an electric circuit An electric circuit for igniting a discharge lamp includes a voltage source, and at least one condenser electrically connected to the voltage source. Further, a series chain is provided, electrically connected in parallel with the condenser, of at least one ignition... | 08/14/2007 |
| 7250726 | Systems and methods for a transformer configuration with a tree topology for current balancing in gas discharge lamps An apparatus and methods for balancing current in multiple negative impedance gas discharge lamp loads. Embodiments advantageously include balancing transformer configurations that are relatively cost-effective, reliable, efficient, and good performing. Embodiments ... | 07/31/2007 |
| 7224151 | Fixed phase power controller with analog trigger A fixed phase power controller that converts a line voltage to an RMS load voltage includes an analog control block with a capacitor that receives an input that is independent of a change in magnitude of the line voltage and that charges and discharges to provide a ... | 05/29/2007 |
| 7224130 | Method of operating a lamp containing a fixed phase power controller A method of operating a lamp that has a power controller connected between a terminal and a light emitting element that converts the line voltage to an RMS load voltage. An input to an analog control block is provided in the controller that is independent of a chang... | 05/29/2007 |
| 7224125 | Dimmable fluorescent lamp package A lamp package includes a base for insertion into an electrical socket, a complete dimmable ballast circuit contained within and electrically connected to the base, and a fluorescent lamp, including a CFLP, connected to and dimmed through the ballast circuit. The ba... | 05/29/2007 |
| 7222990 | Headlight apparatus equipped with an insertible complementary module, for a motor vehicle A headlight apparatus has a lighting element with a connector base disposed in an aperture formed in the lighting element. The connector base has a set of terminals arranged to make contact with a set of electrical contact zones of a complementary module. Each elect... | 05/29/2007 |
| 7218055 | Discharge lamp lighting apparatus The discharge lamp lighting apparatus includes a power section operating to generate a high voltage to be applied to a discharge lamp to trigger electrical discharge within the discharge lamp and to generate an AC voltage to be supplied to the discharge lamp to keep... | 05/15/2007 |
| 7218054 | Lamp having fixed phase power controller with analog trigger A lamp which includes a fixed phase power controller connected between a terminal and a light emitting element converts line voltage to an RMS load voltage. The controller has an analog control block that receives an input that is independent of a change in magnitud... | 05/15/2007 |
| 7211964 | Lamp including phase-control power controller with digital RMS load voltage regulation A phase-control power controller that converts a line voltage to an RMS load voltage includes a phase-control circuit with a potentiometer and a capacitor whose resistance and capacitance determine clipping of a load voltage, a load sensing circuit that senses the l... | 05/01/2007 |
| 7208879 | Lighting apparatus for discharge lamp An embodiment of a discharge lamp lighting apparatus of the present invention includes a socket inserted with a discharge bulb, a transformer having a coil including a secondary side winding connected at one end to the socket, connected at the other end to a first d... | 04/24/2007 |
| 7199532 | Lamp containing phase-control power controller with analog RMS load voltage regulation A lamp includes a phase-control power controller within the lamp. The phase-control power controller includes an analog load voltage sensor that provides an optical output related to an RMS load voltage and a phase-controlled dimming circuit that has a comparison ci... | 04/03/2007 |
| 7196480 | Method of soft-starting a switching power supply containing phase-control clipping circuit A method of operating a power controller that converts a line voltage to an RMS load voltage includes a soft start in which a conduction angle of a phase-control clipping circuit is gradually increased to a steady state value that defines the RMS load voltage. The c... | 03/27/2007 |
| 7180248 | Inductively coupled ballast circuit A ballast circuit is disclosed for inductively providing power to a load. The ballast circuit includes an oscillator, a driver, a switching circuit, a resonant tank circuit and a current sensing circuit. The current sensing circuit provides a current feedback signal... | 02/20/2007 |
| 7172316 | Lighting or indicating apparatus equipped with a complementary module, for a motor vehicle Lighting or indicating apparatus for a motor vehicle comprises in particular a light emitting element which includes a reflector, a light source, and a casing which defines a set of faces, comprising side, lower and upper faces. There is, optionally, at least one op... | 02/06/2007 |
| 7170231 | Lamp that sets desired RMS load voltage with variable pulse width modulation A lamp includes a voltage controller that converts a line voltage to a desired RMS load voltage. The voltage controller is entirely within a lamp base and uses pulse width modulation to define the RMS load voltage. The voltage controller has a feed-back circuit that... | 01/30/2007 |
| 7170236 | Method of setting desired RMS load voltage in a lamp A method of converting a line voltage to a desired RMS load voltage in a lamp includes the steps of pulse width modulating a load voltage with a pulse width modulation circuit, triggering conduction in the pulse width modulation circuit independently of a line volta... | 01/30/2007 |
| 7166964 | Lamp containing pulse width modulated voltage conversion circuit A lamp includes a voltage conversion circuit entirely within a lamp base. The voltage conversion circuit includes a pulse width modulator for modulating a lamp load voltage and provides a load voltage to a light emitting element. A feed-back circuit adjusts the puls... | 01/23/2007 |
| 7153178 | Method of manufacturing a lamp assembly A lamp assembly configured to inductively receive power from a primary coil. The lamp assembly includes a lamp circuit including a secondary and a lamp connected in series. In a first aspect, the lamp circuit includes a capacitor connected in series with the lamp an... | 12/26/2006 |
| 7141933 | Systems and methods for a transformer configuration for driving multiple gas discharge tubes in parallel An apparatus and methods for balancing current in multiple negative impedance gas discharge lamp loads. Embodiments advantageously include balancing transformer configurations that are relatively cost-effective, reliable, efficient, and good performing. Embodiments ... | 11/28/2006 |
| 7135822 | Transformer, lamp base having a transformer and high-pressure discharge lamp A transformer for being fitted in a lamp base and to a lamp base having a transformer arranged in it, the transformer housing being provided with guide elements which serve the purpose of inserting the transformer in the correct position in the lamp base. The transf... | 11/14/2006 |
| 7126287 | Lamp with integral voltage converter having phase-controlled dimming circuit with fuse-resistor network for reducing RMS load voltage An incandescent lamp includes a lamp voltage conversion circuit within the lamp and connected to a lamp terminal, where the voltage conversion circuit converts a first line voltage at the lamp terminal to a second RMS load voltage usable by a light emitting element ... | 10/24/2006 |
| 7116062 | Method of soft-starting a switching power supply including pulse width modulation circuit A method of operating a power controller that converts a line voltage to an RMS load voltage includes a soft start in which a duty cycle of a pulse width modulation circuit is gradually increased to a steady state value that defines the RMS load voltage. The control... | 10/03/2006 |
