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WO/2020/068089A1 |
A zero-crossing detection method, and devices incorporating the method, enable a selectively enabled bias to pull-up a zero-crossing signal, thereby enabling monitoring of the zero-crossing of both half-cycles of the alternating current ...
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WO/2020/056083A1 |
Techniques for controlling the color of a light source during dimming are provided. A current control circuit may be arranged within a light source module and configured to adjust, according to a driving input current, the current path t...
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WO/2020/052798A1 |
The invention relates to a method for flashlamp control, in which a main pulse of the lamp current, producing a flash, is generated, and a pre-pulse of the lamp current is previously generated by application of a bias voltage, as well as...
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WO/2020/009268A1 |
A light emitting diode driving circuit comprises: a capacitor; a first diode bridge circuit for receiving and rectifying a (1-1)th diode bridge input signal and a (1-2)th diode bridge input signal to output a (1-1)th diode bridge output ...
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WO/2020/004251A1 |
Provided is a flash discharge tube (1) that reduces variations in optical light distribution characteristics when the amount of light emitted therefrom is small while being able to provide an improved service life/durability even when us...
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WO/2019/229590A1 |
Disclosed is a phase-cut dimmer, comprising an AC switch coupled in series between an AC supply and a load; a DC power supply powered from a voltage across the switch; a zero-crossing detector of a phase-cut AC voltage across the switch;...
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WO/2019/225044A1 |
This device is provided with: a lamp lighting unit configured to execute operations for lighting up a deuterium lamp by controlling a lamp drive unit and a heater drive unit; an abnormality determination unit configured to determine, in ...
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WO/2019/226567A1 |
One embodiment can provide a light switch module for controlling at least one light source coupled to the light switch module. The light switch module can include a manual control configured to receive a user manual operation; a control-...
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WO/2019/225917A1 |
A fluorescent lamp ballast-compatible LED lamp stabilizer comprises: a low-voltage operating load circuit which changes the state of a switch by comparing a voltage acquired from a junction of a plurality of resistances with a predetermi...
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WO/2019/218129A1 |
A method and device of detecting the status of a lamp, and a lamp driver are provided. The status of the lamp can be determined according to degrees of variations of output voltages of a driver of the lamp (101). Therefore, the status of...
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WO/2019/222259A1 |
A lighting module includes a housing formed of a thermally conducting material having a thermal conductivity greater than at least 0.5 W m-1K-1. The housing comprises a sidewall that forms a substantially cylindrical cavity, and a flange...
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WO/2019/205071A1 |
A power supplier circuit, a controlling method and an electronic equipment. The power supplier circuit includes: a converting circuit, configured to convert input voltage to output voltage, the converting is controlled by a controller of...
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WO/2019/154580A1 |
The invention relates to a method for operating at least one lighting means (3) which has a temperature-dependent current/voltage characteristic curve U(I), comprising an LED converter (2), wherein a control circuit (14) of the LED conve...
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WO/2019/150359A1 |
An IPL apparatus utilizing a Pulse Forming Network (PFN) for generating a plurality of light pulse sequences, comprising a treatment unit comprising one or more lamps adapted to emit a plurality of light pulses towards a treatment face o...
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WO/2019/140335A1 |
Various embodiments are directed to methods and apparatus relating to fan and/or lighting control. Some embodiments are directed to the use of RF and WiFi control in a fan device to control fan status and speed and/or fan light on/off st...
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WO/2019/117534A1 |
The present invention relates to an air cleaning module mounted to a vehicle-mounted air cleaning device, and the air cleaning module mounted to a vehicle-mounted air cleaning device according to the present invention is a high-efficienc...
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WO/2019/118324A1 |
Software is used to allow inputs to a microcontroller to have primary and alternate functions, which reduces the need for additional inputs and associated conductors in a programmable device such as a warning signal light. The microcontr...
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WO/2019/099455A1 |
The specification discloses a flashing lamp circuit including (1) at least one LED, (2) a dual-BJT astable multivibrator, and (3) a BJT/MOSFET pair that functions as both (a) a switch between the multivibrator and the lamp and (b) a curr...
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WO/2019/092719A1 |
A current regulator for a pulsed load is provided herein. The current regulator may include: an input power source; a current sense circuit; a capacitive energy storage device; a current sink driver; a current source charger which receiv...
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WO/2019/084298A1 |
The present disclosure provides an intelligent lighting control system. A controller of the lighting control system causes a phase change cut to be applied to an AC power signal to signal to a light bulb apparatus connected to a luminair...
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WO/2019/080359A1 |
Provided by the present invention are an input detection protection circuit and an alternating current electrical ballast for a high-intensity discharge (HID) lamp, wherein the input detection protection circuit comprises: a power input ...
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WO/2019/080360A1 |
Provided by the present invention is an output detection protection circuit, comprising: an anti-short circuit module, an output current signal detection module, a leakage current detection module, a fault alarm module, and an MCU chip. ...
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WO/2019/084277A1 |
The present disclosure provides intelligent lighting control systems.
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WO/2019/064695A1 |
The objective of the invention is to enable constant current control even when a lamp is in a stable state without increasing the rated output of a power source. When the lamp is in a stable state in which the lamp voltage change value a...
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WO/2019/060364A1 |
Methods, systems, computer-readable media, and apparatuses for improved camera flash are presented. In some embodiments, a method includes performing an autofocus technique on a scene to obtain an autofocus output. The method also includ...
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WO/2019/044881A1 |
[Problem] To provide a high-frequency-power-source UV lamp monitor with which it is possible to easily confirm the illumination of a UV lamp built into a housing having a hermetically sealed structure. [Solution] A monitor provided as an...
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WO/2019/044761A1 |
The present invention addresses the problem of providing a power supply device with which externally emitted noise can be decreased in a preferable manner. The power supply device 100 is a power supply device to which alternating-current...
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WO/2019/029910A1 |
The invention relates to a dimmer for controlling the power consumption of a connectable load, in particular of an integrated or connectable lighting device, comprising at least two dimmer channels (K1, K2, Kx), each having a channel con...
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WO/2019/027220A1 |
Disclosed is a TV lighting control device and method for eye protection. The TV lighting control device for eye protection comprises: a sensor module for sensing information on light emitted from a TV screen, including the intensity and ...
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WO/2019/016025A1 |
The invention describes a method of controlling a segmented flash (10) having a plurality of flash segments (S1, S2, …, Sn), which method comprises the steps of measuring the forward voltages (Vf1, Vf2, …, Vfn) of the flash segments ...
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WO/2018/231230A1 |
In connection with a ground transportation vehicle light head (86) powered by a battery-based voltage source (20) supplying positive (76) and reference (i.e., ground) (78) voltages that define a voltage difference (22) applied across a n...
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WO/2018/222251A1 |
A method and apparatus for assigning addresses to components sharing a common bus. In one embodiment, an iterative elimination process is used to assign the addresses to each component. In another embodiment, each component includes a di...
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WO/2018/206925A1 |
A pulse width modulated voltage regulator comprises a first node (23) and a second node (24) with a load connected between them, a direct current voltage source comprising a supply rail (25) at a first voltage and a zero voltage rail (26...
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WO/2018/188109A1 |
Disclosed in the present invention is a switchable output electronic ballast, comprising a ballast module used for converting mains supply into a high frequency alternating current, comprising a filter circuit, an AC-DC conversion circui...
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WO/2018/186371A1 |
A high-voltage discharge lamp (1), provided with: a light-emitting tube (10); a reflector (20) having a spherical or non-spherical reflective surface (22) formed around the longitudinal axis of the light-emitting tube (10), and an insert...
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WO/2018/161461A1 |
Provided in embodiments of the present invention are a flash, flash adjustment method, and optical system. The flash is applicable in an optical system, and comprises a light source module, a cavity, and a flexible parabolic reflector mi...
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WO/2018/157891A1 |
The invention relates to a composition for producing a polymer, comprising: a) 20 to 60 wt%, in relation to the total amount of the composition, of at least one monomer; and b) 30 to 60 wt%, in relation to the total amount of the composi...
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WO/2018/115554A1 |
The invention relates to a self-oscillating electronic ballast comprising: - a current inverter with switching devices (Q1, Q2); a resonant tank circuit connected to the output of the current inverter; a current detector circuit for dete...
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WO/2018/085138A1 |
A lighthead identification system for controlling lightheads of a surgical lighting system. The lighthead identification system includes illuminated indicator lights that visually indicate to an operator that an associated lighthead has ...
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WO/2018/077678A1 |
In order to control a lamp system having a gas-discharge lamp, an electronic ballast and a control unit, a performance-influencing controlled variable of the lamp system is used. In order to specify, on the basis of this, a method for op...
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WO/2018/065265A1 |
The invention relates to a control interface for a machine-vision lighting device (12), comprising: a plurality of light sensors each for capturing a light signal of respective origin, and emitting a respective sensor signal in response ...
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WO/2018/058298A1 |
A dimming switch system (130). The system (130) comprises a dimming switch (520), a weak-current module (510) and a high-current module (530). The weak-current module (510) may receive at least one drive signal and control the state of t...
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WO/2018/064655A1 |
A rectangular pulse generator system is operatively configured to generate a generator output signal, the generator output signal formed as a base rectangular waveform gated by a modulating rectangular waveform, the base rectangular wave...
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WO/2018/048340A1 |
The invention discloses a method for determining a starting time for a flash emitted from a flash tube (1 ) of a flash apparatus (200). The flash apparatus (200) comprises a triggering circuit (10), and a drive circuit (20). The method c...
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WO/2018/048341A1 |
The invention discloses a drive circuit and a method for controlling a drive circuit for a flash tube. The drive circuit comprises a capacitor and a first inductor switch group comprising a first inductor and at least one first switch co...
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WO/2018/043199A1 |
Provided is a technique allowing an extension of the lifespan of a discharge lamp to be achieved when the discharge lamp is lit at a lower power than the rated power. This discharge lamp lighting device has: an electricity supply unit fo...
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WO/2018/041655A1 |
The invention relates to a method for operating a flashlight (10) and to a flashlight (10) operating according to the method, said flashlight comprising a light-emitting element (12, 12'), a voltage transformer (20) and, on the output si...
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WO/2018/039433A1 |
Environmental characteristics or scenes of habitable environments (e.g., hotel or motel rooms, spas, resorts, cruise boat cabins, offices, hospitals and/or homes, apartments or residences, or other spaces or sub-spaces) are controlled to...
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WO/2018/037192A1 |
The invention relates to a pulse generator (10) comprising an inductor (Lstock) that is intended to store energy that is delivered, during a charge phase, by a DC voltage source (30) to two power supply terminals of the generator (10), a...
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WO/2018/024218A1 |
The present invention provides an electronic ballast-based apparatus for controlling an electronic control circuit and an illuminating lamp. The apparatus comprises an electronic ballast and an electronic control circuit that are connect...
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