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Programmable radio frequency waveform generator for a synchrocyclotron

Patent Number: 8466635
Publication Date: 2013-06-18
Inventors: ;

A synchrocyclotron comprises a resonant circuit that includes electrodes having a gap therebetween across the magnetic field. An oscillating voltage input, having a variable amplitude and frequency determined by a programmable digital waveform generator generates an oscillating electric field across the gap. The synchrocyclotron can include a variable capacitor in circuit with the electrodes to vary the resonant frequency. The synchrocyclotron can further include an injection electrode and ...

Phase control for hysteretic controller

Patent Number: 8466634
Publication Date: 2013-06-18
Inventor:

A driver circuit, and light emitting system and method are provided. The driver circuit includes possibly a controller and a phase detector coupled to produce an intermittent output proportional to a value of an input relative to upper and lower threshold values, and a difference between the input signal, which is the intermittent output signal, and a reference value. The light emitting system can include a switch and at least one light emitting device coupled to the switch. The driver ...

Illumination controlling device for vehicle

Patent Number: 8466633
Publication Date: 2013-06-18
Inventors: ; ;

An illumination controlling device for a vehicle includes a controlling portion to change a luminance phase of a meter based on operation of an operating portion and to maintain a luminance phase of a lighting while the lighting is extinguished. The controlling portion changes the luminance phase of the meter based on the operation of the operating portion and changes the luminance phase of the lighting to correspond to the luminance phase of the meter if the operating portion is operated ...

LED device

Patent Number: 8466632
Publication Date: 2013-06-18
Inventor:

An LED device is provided. The LED device implements an efficient dimming operation. The LED device includes a triac dimmer for receiving an AC voltage and adjusting an angle of the AC voltage, a ballast for receiving the AC voltage from the triac dimmer and generating an AC voltage pulse, a bridge diode unit for generating a DC voltage pulse using the AC voltage pulse, an LED for receiving a DC current and emitting a light, an LED drive controller for receiving a dimming signal and ...

Lamp driver with triac dimmer compensation

Patent Number: 8466631
Publication Date: 2013-06-18
Inventors: ;

A circuit for dimming a lamp is provided. The circuit includes a triac dimmer that adjusts the voltage level of an input AC waveform based on the setting of a dimmer switch. The output of the dimmer is provided to a power supply circuit that drives the lamp based on the voltage level at the dimmer output. The power supply circuit includes a compensation circuit that compensates for loss of dimmer output signal caused by the triac when the dimmer switch is adjusted for full output. The ...

Discharge lamp lighting apparatus

Patent Number: 8466630
Publication Date: 2013-06-18
Inventor:

A discharge lamp lighting apparatus includes a capacitor, a charge circuit for charging the capacitor, a switching element, a gate driving circuit that controls ON and OFF states of the switching element, a simmer current supply circuit for passing simmer current through a discharge lamp, a starting circuit that impresses high voltage to a starting electrode, and an electric discharge sequence control circuit that generates the gate signal and the starting signal. When lighting the ...

Lamp tube with detachable power rectifier member

Patent Number: 8466629
Publication Date: 2013-06-18
Inventor:

A lamp tube includes a encapsulation and a power rectifier member. The power rectifier member includes a power rectifier to convert alternating current (AC) energy into direct current (DC) energy. A first holder defining a first cavity for receiving the power rectifier, and a second cavity for detachably receiving and electrically connecting with one end of the encapsulation; and a first side cover detachably connected to the first holder to cover the first ...

Closed-loop load control circuit having a wide output range

Patent Number: 8466628
Publication Date: 2013-06-18
Inventors: ; ; ; ;

A load control circuit, such as a light-emitting diode (LED) driver, for controlling the amount of power delivered to an electrical load, such as an LED light source, comprises a regulation transistor adapted to be coupled in series with the load, and a feedback circuit coupled in series with the regulation transistor, whereby the load control circuit is able to control the magnitude of a load current conducted through the load from a minimum load current to a maximum load current, which is ...

Device with light-emitting diode circuits

Patent Number: 8466627
Publication Date: 2013-06-18
Inventor:

Devices (1) have branches (20,30) for receiving AC voltages. First branches (20) comprise first light-emitting diode circuits (21) and first arrangements for phase-shifting first currents flowing through the first light-emitting diode circuits (21) with respect to the AC voltages. Second branches (30) comprise second light-emitting diode circuits (31) and do not comprise second arrangements for phase-shifting second currents flowing through ...

Light management system device and method

Patent Number: 8466626
Publication Date: 2013-06-18
Inventors: ; ;

A lighting control system is disclosed. The lighting control system is electrically coupled to a load circuit for controlling indoor and/or outdoor lighting. The lighting control system includes a control module with a night light for providing low-level night light illumination and one or more sensors for operatively controlling the indoor and/or outdoor lighting and the night light in response to measured light levels and/or detected motion. The system is preferably configured to provide ...

Illumination device and method controlling the same

Patent Number: 8466625
Publication Date: 2013-06-18
Inventor:

An illumination device and a method controlling the same are provided. The illumination device produces a pulse width modulation signal to control an illumination light source of the illumination device. The illumination light source is used to illuminate an environment. A driver of the illumination device provides a current to the illumination light source so the illumination light source emits light and a light detecting element of the illumination device detects a first brightness in the ...

Electrohydrodynamic fluid accelerator device with collector electrode exhibiting curved leading edge profile

Patent Number: 8466624
Publication Date: 2013-06-18
Inventors: ; ; ; ;

Performance of an electrohydrodynamic fluid accelerator device may be improved and adverse events such as sparking or arcing may be reduced based, amongst other things, on electrode geometries and/or positional interrelationships of the electrodes. For example, in a class of EHD devices that employ a longitudinally elongated corona discharge electrode (often, but not necessarily, a wire), a plurality of generally planar, collector electrodes may be positioned so as to present respective ...

Impedance matching methods and systems performing the same

Patent Number: 8466623
Publication Date: 2013-06-18
Inventor:

Provided are an impedance matching method and a matching system performing the same. The method includes: measuring an electrical characteristic of the power transmission line including the matching system and the load; extracting a control parameter for impedance matching from the electrical characteristic of the power transmission line; and controlling the matching system by using the control parameter. The extracting of the control parameter comprises utilizing an analytic coordinate ...

High frequency power supply

Patent Number: 8466622
Publication Date: 2013-06-18
Inventor:

For determining a wave running time between a RF source in a plasma power supply device and a load connected to the plasma power supply device, an RF pulse is transmitted forwards from the RF source to the load. The pulses are reflected by the load and transmitted backwards to the power source. A return time measured on arrival of the pulse(s) at the inverter is used to determine a wave running ...

Conversion of vehicular indicator lights to multi-function indicators

Patent Number: 8466621
Publication Date: 2013-06-18
Inventors: ;

Vehicle indicator lights, such as run-brake lights and/or side running lights, are converted to run-turn-brake indicator lights. A run-turn-brake converter is connected to vehicle-supplied run, brake, left turn, and right turn signal leads, the run-turn-brake converter producing left and right run-turn-brake signals. Existing vehicle wiring is reconfigured by disconnecting a first lead wire from the low-intensity input of a first three-terminal brake-run light socket, disconnecting a second ...

Bi-color license plate frame

Patent Number: 8466620
Publication Date: 2013-06-18
Inventor:

A bi-color license plate frame, for surrounding a license plate of a vehicle, comprises a rectangular body comprising an aperture that is adapted to show a license plate, and a wall defining a hollow frame space inside the wall, a plurality of light-emitting elements contained in the frame space, and a controller that is electrically connected to the light-emitting elements and that controls the light intensity of the light-emitting elements according to the braking status of the vehicle. ...

Illumination apparatus and driving method thereof

Patent Number: 8466619
Publication Date: 2013-06-18
Inventors: ;

An illumination apparatus includes an adapter that converts power into driving power; a light emitting device illumination part that is detachably and electrically connected to the adapter to emit light according to the driving power from the adapter; and a driving unit that controls an illumination direction of the light emitting ...

Configuration of a luminaire system

Patent Number: 8461781
Publication Date: 2013-06-11
Inventor:

There is provided a method for advanced configuration and initialization of a luminaire system. The luminaire system comprises one or more lighting devices (102), an apparatus (104) and a user interface (106). The apparatus comprises a light sensor. One or more of the lighting devices are not connected to a central controller by means of a wired/wireless connection. Therefore, techniques and procedures to use manual interaction by an operator (114) to control ...

Method for driving a PTC electrical load element

Patent Number: 8461780
Publication Date: 2013-06-11
Inventors: ; ; ; ; ; ;

A method is intended to make it possible to drive a PTC electrical load element with a switching unit with the highest possible operational reliability. For this purpose, the electric current is switched off if a predetermined current threshold value is exceeded, the magnitude of the current threshold value being determined from the operating parameters of the load ...

Alternating turn off timing of a fluorescent lamp starter unit

Patent Number: 8461779
Publication Date: 2013-06-11
Inventor:

A starter unit (for example, an RF-enabled and replaceable starter unit) has an ability both to turn on and to turn off a fluorescent lamp. The starter unit detects whether a ballast in the circuit with the fluorescent lamp is of a first type (for example, an L-type ballast) or is of a second type (for example, a C-type ballast). If the determination is that the ballast is of the first type, then the starter unit turns off the lamp in a first way (for example, using C-type timing and then ...

Controlling intensity of a light through qualified motion sensing

Patent Number: 8461778
Publication Date: 2013-06-11
Inventor:

Methods and apparatuses for controlling light intensity of a light through motion sensing are disclosed. One method includes sensing a first instance of motion. The light is activated only if consecutive instances of motion are sensed, wherein each instance is sensed within a gap of time of a previously sensed instance of motion, and the consecutive instances of motion being sensed span an entire window of time after sensing the first instance of motion. One apparatus includes a motion ...

Protection from short cathode condition in LED driver and method therefor

Patent Number: 8461777
Publication Date: 2013-06-11
Inventors: ;

A Light Emitting Diode (LED) driver for preventing shorting has an LED driver circuit. A protection circuit is coupled to the LED driver to detect a fault condition by monitoring a cathode of an LED string of the LED driver, an LED current sense voltage of the LED driver, an LED current feedback error voltage of the LED driver circuit, and a state of a dimming switch of the LED ...

Solid state lighting panels with variable voltage boost current sources

Patent Number: 8461776
Publication Date: 2013-06-11
Inventors: ; ;

A lighting system includes a lighting panel having a string of solid state lighting devices and a current supply circuit having a voltage input terminal, a control input terminal, and first and second output terminals coupled to the string of solid state lighting devices. The current supply circuit is configured to supply an on-state drive current to the string of solid state lighting devices in response to a control signal. The current supply circuit includes a charging inductor coupled to ...

Integrated three dimensional inductor and method of manufacturing same

Patent Number: 8461775
Publication Date: 2013-06-11
Inventors: ;

An integrated 3-dimensional inductor device is provided. The inductor device includes a substrate having an electrical trace and a 3-dimensional inductor attached to the substrate. The inductor includes a magnetic core and a coil whose windings are formed from the electrical traces of the substrate and conductive material in the interconnect ...

Lighting power circuit with peak current limiter for EMI filter

Patent Number: 8461774
Publication Date: 2013-06-11
Inventor:

Light source power circuits and EMI filters therefor are presented in which a depletion mode field effect transistor is connected in series with an EMI filter capacitor following an input rectifier to allow filtering of EMI and to limit capacitive currents during triac switching when powered through a phase-cutting dimmer ...

High pressure discharge lamp ballast and light source apparatus

Patent Number: 8461772
Publication Date: 2013-06-11
Inventor:

A high pressure discharge lamp ballast performs driving with a synthesized current waveform comprising a combination of first and second sets of current waveforms. The ballast controls content rates of each of the sets per unit time; detects a rotation synchronization signal for a color wheel; applies a synthesized current waveform in accordance with the synchronization signal and the content rates to a high pressure discharge lamp; and detects a lamp voltage. A period of each of the first ...

Electronic ballast for a discharge lamp

Patent Number: 8461771
Publication Date: 2013-06-11
Inventor:

An electronic ballast arrangement for a discharge lamp is provided. The electronic ballast arrangement includes an electronic ballast for a discharge lamp with a control application specific integrated circuit, the control application specific integrated circuit having a control input, which is characterized by the fact that the potential present across it sets the operating frequency of the control ASIC when driving the discharge lamp; and a switch; wherein the electronic ballast is ...

Light-emitting diode driver

Patent Number: 8461770
Publication Date: 2013-06-11
Inventor:

A light-emitting diode (LED) driver used to power at least one LED with an alternating current (AC) voltage source is provided. The LED driver includes a rectifying unit applying N-fold higher voltage than the voltage from the AC voltage source to the LED. The rectifying unit includes a first charging unit to charge a first voltage, and a second charging unit to charge a second voltage. The first voltage includes the voltage at the AC voltage source during a first half-cycle of one AC ...

LED driving circuit, LED driving control unit and transistor switch module thereof

Patent Number: 8461769
Publication Date: 2013-06-11
Inventors: ;

An LED driving circuit is used for dimming by switching between an operating current and a maintaining current or by voltage clamping of a source/drain of MOSFET that is coupled to the LED module. When the LED module is dimmed off, the voltage across the LED module can be kept at a value around a lighting threshold voltage of the LED module that is a minimum voltage for lighting the LED module. Therefore, a voltage difference between the drain and the source of MOSFET coupled to the LED ...

Transmitter and information processing device converting supply voltage to drive voltage

Patent Number: 8461768
Publication Date: 2013-06-11
Inventor:

A transmitter includes a voltage conversion circuit converting supply voltage externally supplied into drive voltage and outputting the drive voltage; and an optical output unit which is supplied with the drive voltage and outputs an optical signal, wherein the voltage conversion circuit and the optical output unit are included in a same ...

Power factor control for an LED bulb driver circuit

Patent Number: 8461767
Publication Date: 2013-06-11
Inventors: ;

A light-emitting diode (LED) bulb has a shell and a base attached to the shell. An LED is within the shell. A driver circuit provides current to the LED. The driver circuit has a power factor control circuit that includes a tracking circuit configured to produce a tracking signal indicative of the voltage of the supply line. The power factor control circuit also includes a switch-mode power supply (SMPS) controller having an input pin and an output pin. The tracking circuit is connected to ...

Driver circuit with primary side state estimator for inferred output current feedback sensing

Patent Number: 8461766
Publication Date: 2013-06-11
Inventor:

An LED driver circuit and an isolated DC-DC converter therefor are presented, in which a primary side state estimator circuit is provided for inferred output current sensing for closed loop control of pulse width modulated flyback or buck converters. Specifically, the estimator circuit includes a capacitance having a first terminal coupled to a comparator input of a pulse width modulation controller, and a second terminal coupled to an error input of an error amplifier, and a switching ...

LED driving device

Patent Number: 8461765
Publication Date: 2013-06-11
Inventor:

An LED driving device includes a rectifier circuit, a first LED module, a first switch, a second LED module, a second switch, and a diode module. The rectifier circuit includes a pair of input terminals and first and second output terminals for receiving an AC voltage and rectifying the AC voltage to output a pulsed rectified voltage. The first LED module and first switch connected in series are electrically connected between the first and second output terminals of the rectifier circuit. ...

Sampling external voltage which may exceed integrated circuit maximum voltage rating

Patent Number: 8461764
Publication Date: 2013-06-11
Inventors: ; ;

An LED driver arrangement wherein a low voltage IC is arranged to sample the voltage at a terminal of each of the respective electronically controlled switches controlling a plurality of LED strings each receiving power from a single source, with the single source providing voltage in excess of the voltage rating of the IC. For each electronically controlled switch a controllable current source and an isolating unidirectional electronic valve is provided, the respective current source being ...

Electron cyclotron ion source and manufacturing method thereof

Patent Number: 8461763
Publication Date: 2013-06-11
Inventors: ; ;

An apparatus of an electron cyclotron resonance ion source may include: a magnet unit containing a magnet for generating magnetic fields; an ionizing chamber housing unit for generating ions through electron cyclotron resonance from a plasma; a microwave generating unit for injecting microwaves to the ionizing chamber housing unit to generate ions; and a beam integrating and guiding unit for treating the generated ions. The magnet unit may include: a bobbin for winding the magnet; a ...

Apparatus for magnetic and electrostatic confinement of plasma

Patent Number: 8461762
Publication Date: 2013-06-11
Inventor:

An apparatus and method for containing plasma and forming a Field Reversed Configuration (FRC) magnetic topology are described in which plasma ions are contained magnetically in stable, non-adiabatic orbits in the FRC. Further, the electrons are contained electrostatically in a deep energy well, created by tuning an externally applied magnetic field. The simultaneous electrostatic confinement of electrons and magnetic confinement of ions avoids anomalous transport and facilitates classical ...

Induction accelerating device and acceleration method of charged particle beam

Patent Number: 8456110
Publication Date: 2013-06-04
Inventors: ; ;

The present invention provides a set of induction accelerating cell for controlling acceleration of a charged particle beam and an induction accelerating device for controlling generation timing of an induced voltage applied by the induction accelerating cell in a synchrotron. The induction accelerating device in a synchrotron includes: an induction accelerating cell that applies an induced voltage; a switching power supply that supplies a pulse voltage to the induction accelerating cell ...

Lighting system having a dimming color simulating an incandescent light

Patent Number: 8456109
Publication Date: 2013-06-04
Inventor:

A lighting system has a white light source and a color light source, a control circuit pulses the white and color light sources and changes relative duty cycles of the light sources to alter a color output of the lighting fixture, in response to a change in a control signal from a controller. A comparator compares a reference voltage relating to an aggregate current driving the light sources to a signal voltage relating to the periodic signal from a signal generator. The comparator controls ...

LED lighting apparatus

Patent Number: 8456108
Publication Date: 2013-06-04
Inventor:

An LED lighting apparatus includes a triac dimmer 3, a series circuit connected to the triac dimmer and including a primary winding P of a switching transformer T and a switching element Q1, the switching transformer having a plurality of windings, a controller 14 of the switching element, a rectifying-smoothing circuit of a voltage of a secondary winding S of the switching transformer, LEDs 1a to 1n connected to an output of the ...

Spotlight and method of lighting up an object

Patent Number: 8456107
Publication Date: 2013-06-04
Inventor:

Embodiments show a spotlight comprising light emitting diode modules wherein each LED module comprises at least two light emitting diodes with different light emission spectra and a light mixer, wherein each light mixer is arranged at one side of the light mixer in cooperation with an assigned LED module and each light mixer is configured to mix the different light emission spectra of the at least two LEDs of the assigned LED module to form a light beam, and wherein exit surfaces at the ...

LED driver with extended dimming range and method for achieving the same

Patent Number: 8456106
Publication Date: 2013-06-04
Inventors: ;

A circuit for powering of a Light Emitting Diode (LED) string has a switching power converter. A brightness control circuit is coupled to the switching power converter to allow a duration of a conductive state of the power converter to exceed a duration of a conductive state of the LED string for maintaining a current magnitude in the LED string ...

Driving circuit capable of enhancing energy conversion efficiency and driving method thereof

Patent Number: 8456105
Publication Date: 2013-06-04
Inventor:

A driving circuit includes a switch, a detecting unit, and a current supply unit. A first terminal of the switch is used for coupling to a first terminal of a first LED group of a plurality of LED groups and receiving a first voltage, and a third terminal of the switch is used for coupling to a first terminal of a last LED group of the plurality of LED groups. The detecting unit is used for outputting a switch control signal to a second terminal of the switch for controlling turning-on and ...

Variable backlight control for bezel

Patent Number: 8456104
Publication Date: 2013-06-04
Inventor:

A method and system provide for dynamic control of backlighting of a light-transmissive bezel of a display device. A color control signal is received and processed by a processor and control element of the display device to generate a backlighting control signal and transmit the backlighting control signal to the backlighting element of the display device. The backlighting element generates a backlighting color to illuminate the light-transmissive bezel in accordance with the received ...

Current regulator apparatus and methods

Patent Number: 8456103
Publication Date: 2013-06-04
Inventor:

An apparatus according to the present invention provides regulated pulsed current to an LED from a voltage source such as a rectified AC voltage. The present inventions provide methods for delivering regulated pulsed current to an LED from the voltage ...

Illumination control apparatus

Patent Number: 8456102
Publication Date: 2013-06-04
Inventors: ;

An illumination control apparatus configured to control brightness of a plurality of illumination devices that is provided in a plurality of sections, respectively, includes: a detection unit configured to detect presence or absence of a person in each of the plurality of sections based on an output of a video camera configured to take images of the plurality of sections; and a control unit configured to turn on an illumination device of a detected section among the plurality of ...

Power systems with platform-based controllers

Patent Number: 8456101
Publication Date: 2013-06-04
Inventors: ;

A power system includes a switching circuit, a resonant tank, a feedback circuit, and controller circuitry. The switching circuit including a first switch and a second switch provides a first AC signal. The resonant tank coupled to the switching circuit receives the first AC signal and generating a second AC signal for powering a load. The feedback circuit coupled to the load monitors an electrical condition of the load and provides a feedback signal. The controller circuitry coupled to the ...

Device for generating light

Patent Number: 8456100
Publication Date: 2013-06-04
Inventor:

An illumination system (10; 100) for generating light comprises: at least one a lamp assembly (14; 114) capable of generating light (17; 117) with a variable color; a controller (15; 115) for controlling the lamp assembly; a user input device (19) coupled to the controller. The controller (15; 115) is designed, on the basis of data received from the user input device (19), to generate color control signals for the lamp assembly. The ...

Method for operating a gas discharge lamp

Patent Number: 8456099
Publication Date: 2013-06-04
Inventors: ; ; ;

The invention relates to a method for operating a gas discharge lamp, in which the shape of at least one electrode of the gas discharge lamp is changed, in which by changing the lamp current for a predeterminable duration, at least one current pulse is generated such that structures which have grown on the at least one electrode are at least partially removed, the current pulse being generated for the duration of at least one entire half cycle of the AC voltage or the alternating current if ...

Method and apparatus for efficiently powering digital electronic nodes on a single conductor current line

Patent Number: 8456098
Publication Date: 2013-06-04
Inventors: ; ;

Direct current circuits always require a voltage source consisting of a positive voltage and a ground. To power a plurality of a direct current circuit nodes one must traditionally supply a power supply line and a ground line to each circuit node. To simplify wiring, a single conductor system of powering a plurality of circuit nodes is disclosed wherein each circuit node has only two external connections and the circuit nodes are coupled in series. Specifically, each individual circuit node ...

Modified dimming LED driver

Patent Number: 8456097
Publication Date: 2013-06-04
Inventor:

A driver circuit produces variable current output for an LED lighting system providing improved dimming capability and greater power efficiency when responding to industry standard lighting dimmers through the use of an input voltage monitoring circuit which variably controls the current output of a switching regulator. Output current modulation methods such as analog, PWM, Pulse Frequency Modulation, or other digital modulation, and combination or hybrid may be employed. The current ...