ClassID:

233218

H05B39/047 - CPC Classification

Classification description:

Circuit arrangements or apparatus for operating incandescent light sources; Controlling the light-intensity of the source continuously with pulse width modulation from a DC power source

Recent Application in this class:
#1
20210256896
2021-08-19

Pixel diagnostics with a bypass mode

#2
20210029788
2021-01-28

Controller for controlling light source module

#3
20200137849
2020-04-30

Dimming circuit and lighting device

#4
20200107416
2020-04-02

Alternating current (AC) dimming and emergency power supply method and device

#5
20200084868
2020-03-12

Dynamic pixel diagnostics for a high refresh rate LED array

#6
20200082749
2020-03-12

Pixel diagnostics with a bypass mode

#7
20190191536
2019-06-20

Selective power supply device for incandescent lamp or light-emitting diode

#8
20180310390
2018-10-25

Selective power supply device for incandescent lamp or light-emitting diode

#9
20170057401
2017-03-02

Apparatus and method for lamp control in vehicle

#10
20150327339
2015-11-12

LED (light-emitting diode) string derived controller power supply

#11
20150271882
2015-09-24

LED (light-emitting diode) string derived controller power supply

#12
20140252952
2014-09-11

Dimmable LED reading light unit, arrangement of power supply and dimmable LED reading light unit, method of operating a dimmable LED reading light unit in a power supply system, and method of replacing a dimmable light unit by a dimmable LED reading light unit

#13
20140142808
2014-05-22

Power supply unit control device for internal combustion engine driven vehicle and internal combustion engine driven vehicle equipped with power supply unit control device

#14
20130162161
2013-06-27

Apparatus for controlling an illumination device and method for controlling an illumination device

#15
20120119678
2012-05-17

Method for driving a PTC electrical load element

#16
20110140636
2011-06-16

System and method for providing a control signal

#17
20110101886
2011-05-05

Load control circuit

#18
20110043180
2011-02-24

Power supply controller including an anomaly monitor

#19
20100253240
2010-10-07

PWM control method and device and light adjusting device

#20
20100237927
2010-09-23

Circuit configuration for protecting a circuit element having overcurrent and overtemperature detection

#21
20100166634
2010-07-01

METHOD AND A REACTOR FOR PRODUCTION OF HIGH-PURITY SILICON

#22
20100013408
2010-01-21

DIMMING CIRCUIT FOR CONTROLLING ELECTRICAL POWER

#23
20100007278
2010-01-14

Lamp overload detection/modulation circuit

#24
20090295294
2009-12-03

Vehicular conspicuity lamp with rapidly modulated intensity

#25
20090212705
2009-08-27

Method of supplying power to an automobile headlight lamp and headlight using that method

#26
20090153235
2009-06-18

Load controller

#27
20090102400
2009-04-23

Method for driving a PTC electrical load element

#28
20090027029
2009-01-29

Load control unit

#29
20080310068
2008-12-18

Control circuit of semiconductor device having over-heat protecting function

#30
20080303453
2008-12-11

Illumination control apparatus using a pulsating waves

#31
20080297065
2008-12-04

Dual mode searchlight dimming controller systems and methods

#32
20080238343
2008-10-02

System and method for dimming one or more light source

#33
20080224630
2008-09-18

Dimming circuit for controlling electrical power

#34
20080122365
2008-05-29

Method of Supplying Pulsed Power to Light Bulbs in Motor Vehicles

#35
20080106204
2008-05-08

Lighting control device and control method

#36
20080084196
2008-04-10

Method and apparatus to compensate for supply voltage variations in a PWM-based voltage regulator

#37
20080074409
2008-03-27

Method for controlling the power supply from a power source to a power consumer

#38
20080048587
2008-02-28

Method for controlling an electrical light source by pulse width modulation

#39
20080036552
2008-02-14

Method and Circuit Arrangement for the Production of an Output Signal of a Predefined Average Size From a Relatively Larger Input Signal by Pulse-Width Modulated Connection of Said Input Signal

#40
20070262765
2007-11-15

Method for controlling an electrical light source by pulse width modulation

#41
20070247072
2007-10-25

Illumination device

#42
20070194725
2007-08-23

Automobile lighting pulse width modulation duty cycle control with voltage and temperature compensation

#43
20070194720
2007-08-23

Illumination control circuit

#44
20070189030
2007-08-16

Illuminating device for imaging apparatus

#45
20070090766
2007-04-26

Automatic PWM controlled driver circuit and method

#46
20060267515
2006-11-30

PWM switching power supply control methods

#47
20060164025
2006-07-27

Lamp driving apparatus for vehicle

#48
20060066262
2006-03-30

Filament lamp light quantity control method and filament lamp light quantity control unit and filament lamp light source unit

#49
20060066260
2006-03-30

Filament lamp light quantity control method and filament lamp light quantity control unit and filament lamp light source unit

#50
20050258781
2005-11-24

Driving voltage controller for light-emitting source

#51
20050174788
2005-08-11

High intensity lamp system for a motorcycle

#52
20050169005
2005-08-04

Lighting and/or indicating device equipped with a device for regulating the luminous flux for a halogen bulb

#53
20050168168
2005-08-04

Light dimmer for LED and incandescent lamps

#54
20050134200
2005-06-23

Load control circuit

#55
20050067983
2005-03-31

PWM controller with automatic low battery power reduction circuit and lighting device incorporating the controller

#56
20050017654
2005-01-27

Lighting system and method