296 results about "Dimmer" patented technology

The utility model relates to a rear-phase-cut single-live-wire type wall light modulator, which comprises an MOS (Metal Oxide Semiconductor) tube switch loop unit, a singlechip control unit and a direct-current power supply unit, the MOS tube switch loop unit comprises a wiring terminal J2 connected with an MOS tube Q1, a grid electrode of the MOS tube Q1 is connected with four resistors in series in sequence and then is connected with an MOS tube Q2, a drain electrode of the MOS tube Q2 is connected with a diode D2, the diode D2 is connected with a diode D1, a fixed end contact of a single-pole double-throw switch is connected with the MOS tube Q2, and two movable end contacts of the single-pole double-throw switch are connected with the wiring terminal J1 and the wiring terminal J3 respectively; the direct-current power supply unit comprises an alternating-current voltage waveform acquisition circuit, a direct-current voltage drop circuit, an overcurrent protection circuit and a filtering voltage stabilizing circuit; according to the single-chip microcomputer control unit, a linear sliding potentiometer is connected with the PC2 end of a single-chip microcomputer after being connected with a resistor in series, the linear sliding potentiometer and a rotary potentiometer are sequentially connected between the output end of the direct-current power supply unit and the ground in series, a triode Q6 is connected with a triode Q5 and then connected with the collector electrode of a triode Q7, and the base electrode of the triode Q7 is connected with the PA6 end of the single-chip microcomputer after being connected with a resistor in series.

A lighting system includes a power supply circuit configured to generate a drive signal for powering a light source based on an input power signal; a temperature sensor configured to measure a light source temperature corresponding to the light source; a current control circuit coupled to the light source and configured to adjust a current of the light source based on the drive signal and a reference signal; a channel controller configured generate the reference signal based on a dimmer setting, and to generate a compensation drive signal based on the light source temperature; and an auxiliary light configured to generate compensation light for compensating a correlated color temperature (CCT) drift in an output light of the light source based on the compensation drive signal.

An illumination device and method are provided for controlling light-emitting diodes (LEDs). The LEDs (specifically, the LED loads) are controlled, e.g., brightness and color of the LED loads, independent of a phase-cut dimmer applied to the AC mains feeding a DC power supply. The power supply is active dependent upon the duration of a conduction angle supplied from the dimmer. The power supply, however, produces drive currents that are independent from the conduction angle by using a two-stage power supply and a relatively slow and fast control loops that are controlled through a microprocessor-based control circuit. Parameters stored in the control circuit are drawn by the microprocessor to control the two-stage power supply to produce the drive currents independent and decoupled from the conduction angle yet dependent on the controller parameters.

The invention provides an optical module, a debugging method and optical equipment. The optical module comprises a display panel, a first cholesteric liquid crystal film, a first electric control dimming device and a second cholesteric liquid crystal film, the first cholesteric liquid crystal film is arranged on the light emitting side of the display panel, the second cholesteric liquid crystal film and the first cholesteric liquid crystal film have the same circular dichroism, and the second cholesteric liquid crystal film and the first cholesteric liquid crystal film are configured to reflect polarized light with the same rotation direction as the first cholesteric liquid crystal film and transmit polarized light with the rotation direction opposite to the first cholesteric liquid crystal film; the first electric control dimming device is configured to be time division multiplexing, can convert the transmitted polarized light into polarized light with opposite rotation directions in a power-off state, and maintains the polarization state of the transmitted polarized light in a power-on state. According to the optical module, when the polarized light is transmitted and reflected at the first cholesteric liquid crystal film and the second cholesteric liquid crystal film and is emitted from the first electric control dimming device in different polarization states, light loss cannot be generated, and the light emitting brightness and the imaging quality of the optical module can be guaranteed.

The application discloses a dimming data transmission method, a backlight system and a display device. The method comprises the following steps: in a display period of a frame image, after a dimming controller sends a frame start identifier to a dimmer, the dimming controller continuously sends a plurality of dimming data packets to the dimmer, each dimming data packet comprises a synchronization signal and N-bit dimming data, N is a positive integer, and N is greater than or equal to 2; and the dimmer determines target dimming data based on a sampling control signal and the dimming data packet received by the dimmer. By sending the dimming data packet comprising the N-bit dimming data, the transmission of multiple bits of dimming data can be simultaneously performed for each dimming data packet, so that the overall transmission time length of the dimming data is shortened, the transmission efficiency is improved, the probability of level jump in the transmission process is reduced, the EMI problem of the system is alleviated, and the display performance is improved.

The utility model discloses a multi-angle irradiation lamp structure which comprises a balance weight base plate, a vertical rod fixed on the balance weight base plate and a lamp body arranged at the top end of the vertical rod, and the lamp body comprises a horn-shaped supporting frame, a lamp holder with a lens, a lampshade, a magnetic suction light changing piece and a magnetic ring. The small opening end of the horn-shaped supporting frame is fixed to the top end of the vertical rod. The lamp holder with the lens is electrically connected into the horn-shaped supporting frame and located at the top end of the vertical rod. Through holes are formed in the bottom end and the top end of the lampshade, and the magnetic rings are fixed to the edges of the through holes; the bottom end of the lampshade is limited in the horn-shaped supporting frame, and the magnetic attraction light changing piece is located on the top face of the lampshade and fixed through magnetic attraction of the magnetic ring. The LED lamp is reasonable in structural arrangement, convenient to disassemble, assemble and operate and beneficial to improving the assembling efficiency, light rays of the lamp holder with the lens can irradiate outwards through the lampshade and the magnetic light changing piece, irradiation in different directions can be achieved, the multi-angle irradiation requirement is met, the illumination and decoration effects are improved, and applicability is high.

Faceplate for a rotary dimmer switch

A multi-modal primary switch 10, such as a wall mounted dimmer switch for lighting devices, provides the capability to operate in different modes depending upon the set-up of associated hardware (e.g.

A smart lighting device may be configured to be controlled in response to control instructions in messages and / or phase-control signals. The smart lighting device may determine whether to respond to the phase-control signal or the control instructions in messages. The smart lighting device may be configured to recognize whether it is electrically connected to a smart load control device or a non-smart load control device. A load control device may determine whether it is electrically connected to a mixed circuit or a non-mixed circuit. When the load control device determines that the circuit is a mixed circuit, the load control device may transmit phase-control signals and control instructions in messages at the same time. The load control device may determine that a smart lighting device has been added (e.g., electrically connected) to the circuit it is electrically connected to.

The utility model relates to the technical field of silicon controlled rectifier dimming, in particular to a multi-color-temperature multi-power switching circuit compatible with silicon controlled rectifier dimming, which comprises a rectifying and filtering module, a silicon controlled rectifier dimming constant-current module, an MCU (Microprogrammed Control Unit) linear power supply module, a power failure detection module, a color temperature control module, a double-path PWM (Pulse-Width Modulation) dimming constant-current module and a load module, the input end of the power failure detection module is electrically connected with the rectification filtering module and used for detecting the power failure condition of the rectification filtering module, and the output end of the power failure detection module is electrically connected with the analog input end of the color temperature control module. The two pulse width modulation ends of the color temperature control module are electrically connected with the two pulse width modulation ends of the double-path PWM dimming constant-current module in a one-to-one correspondence manner, so that not only can a silicon controlled rectifier dimmer be compatible for brightness adjustment, but also the color temperature and the power can be flexibly and conveniently switched at any time; and meanwhile, the problem that the color temperature and the power are switched mistakenly due to the fact that a switch is turned on for several times due to mistakes in the actual use process is solved, and then the use experience of customers is improved.

PM1G_1xSGD400T_Enkin_PX M Dimmer Switch

The utility model discloses a showcase structure with a light source assembly arranged in a hidden mode, which belongs to the technical field of showcase structures and comprises a glass showcase, a showcase body upper box is arranged at the top of the showcase body, a light source part is arranged on the showcase body upper box, a showcase body base is arranged at the bottom of the glass showcase body, and a power supply part is arranged on the showcase body base. The cabinet body display stand is connected to the cabinet body base, and access doors are arranged on the two sides of the cabinet body base. When the glass showcase is installed, the PET transparent wire is installed at the cabinet body glass splicing position of the non-main-view face, the power connector, the power source and the light modulator are installed on the cabinet body base, maintenance and other operation are convenient, only the transparent wire is laid on the glass face, the magnetic attraction lamp is installed in the cabinet body upper box at the bottom of the glass showcase, and the glass showcase is convenient to use. And the transparency of the glass surface is kept, so that the concealed installation of the lamp and the wire is realized.

The electronic control dimming device comprises a first base material (11), a second base material (12), the scattering layer (2), a first conducting layer (31), a second conducting layer (32) and a liquid crystal-polymer composite layer (4), wherein the scattering layer (2), the first conducting layer (31) and the second conducting layer (32) are arranged on the inner surface of the first base material and / or the second base material, and the liquid crystal-polymer composite layer (4) is arranged between the first conducting layer (31) and the second conducting layer (32). The liquid crystal-polymer composite layer comprises a liquid crystal (41) and a polymer matrix (42), the ordinary light refractive index of the liquid crystal component, the refractive index of the polymer matrix and the refractive index of the scattering layer, and the absolute value of the difference between any two refractive indexes is smaller than or equal to 0.02. According to the PDLC dimming device, the scattering layer is additionally arranged in a traditional PDLC dimming device, the triangular paradox of low driving voltage, low transparent state haze and high shielding state haze in an existing PDLC dimming device is solved through matching of refractive indexes, and a dimming device product with a better comprehensive effect is provided for automobile windows, electronic products and building glass.

Panel Mount 1 Gang Dimmer Switch_E

This light control device comprises: a panel unit having a prism shape in which a plurality of polygonal liquid crystal panels are stacked; and a plurality of conductive members provided on a side surface of the panel unit. A lower substrate or an upper substrate has a terminal group including a first terminal electrically connected to a first drive electrode, a second terminal electrically connected to a second drive electrode, a third terminal electrically connected to a third drive electrode, and a fourth terminal electrically connected to a fourth drive electrode. The terminal group is provided along one side of the lower substrate or the upper substrate that is polygonal. The terminal group in one predetermined liquid crystal panel among the plurality of liquid crystal panels is exposed, and the terminal group in another liquid crystal panel other than the one predetermined liquid crystal panel is sealed.

The application relates to a linear thyristor light-adjusting full-voltage constant-power input circuit, wherein a thyristor light adjuster is arranged in communication with an external voltage in front of an input protection circuit, a bridge rectifier circuit is arranged at the rear end of the input protection circuit, an output end of the input protection circuit is connected with a voltage conversion detection circuit, the voltage conversion detection circuit is connected with a full-voltage control circuit, a power supply resistor R11 is connected with the output end of the bridge rectifier circuit, the power supply resistor R11 is connected with the full-voltage control circuit, a series-parallel conversion circuit is connected with the full-voltage control circuit, and an isolation circuit is connected with the series-parallel conversion circuit, wherein four groups of full-balance circuits, reference position circuits, lamp string circuits and filter circuits are arranged respectively, the full-balance circuits, the reference position circuits and the lamp string circuits are connected correspondingly, the filter circuits are connected in parallel at both ends of the lamp string circuit, and the isolation circuit is connected between the full-balance circuit and the reference position circuit. The input circuit can realize full-voltage constant-power input, has strong universality and low cost.

The utility model relates to an adapter with a light modulator. The adapter comprises a shell used for being connected between an external lamp holder and a bulb. The upper end of the shell is provided with a first connecting part used for being in threaded connection with an external lamp holder, and the lower end of the shell is provided with a second connecting part used for being in threaded connection with a screw base of a bulb. A circuit board is installed in the shell, a control unit and a light modulator are arranged on the circuit board, and the control unit is coupled between the first connecting part and the second connecting part so as to control the transmission power between the first connecting part and the second connecting part according to a light modulation signal; the shell is provided with an adjusting knob used for controlling the light modulator, and the adjusting knob is connected with the control unit through the light modulator so as to send a light modulation signal to the control unit; the dimming function can be added under the condition that an existing lamp is not replaced, the cost is greatly saved, and the use convenience is improved.

A dimmer 300 for lighting comprises an input terminal 304, configured for connection to a live mains voltage 108; a first wire 306, configured for connection to a first terminal 410 of a user switch 2

The utility model discloses an assembly type structure of a refitted vehicle, and relates to the related field of refitted vehicle assembly, the assembly type structure comprises a mounting table, a mounting rack, a mounting block, an angle adjusting mechanism, a light supplementing mechanism and a manipulator, the rear end of the top of the mounting table is fixedly connected with the mounting rack, and the front end of the bottom of a connecting plate at the top of the mounting rack is fixedly connected with the mounting block; an angle adjusting mechanism is fixedly connected to the bottom of the mounting block, a light supplementing mechanism is fixedly connected to the left side of the front end of a connecting plate at the bottom of the mounting frame, and a mechanical arm is fixedly connected to the center of the front end of the mounting table. The states of the refitted part under different light conditions are captured, so that a plurality of photos are obtained, and a more comprehensive detection result is obtained; the light supplementing mechanism is arranged, the brightness of the light supplementing lamp is increased or decreased through the light modulator so as to keep a constant illumination environment, and then the brightness adjustment degree of the light supplementing lamp is indirectly judged through the laser range finder.

Systems and methods for reducing temporal light artifacts (“TLAs”) occurrence during light source dimming operations are provided. The system includes a dimmer, a light source, and a driving circuit. The driving circuit is configured to receive a signal from the dimmer and perform a dimming curve algorithm on the signal to drive the light source with a non-linear dimming curve such that a light output of the light source over a dimming duration has no TLAs detectable by a human observing the light output. The method includes receiving, at a driving circuit, a signal from a dimmer; performing a dimming curve algorithm on the signal to generate a non-linear dimming curve; and driving a light source with the non¬linear dimming curve to dim a light output of the light source such that the light output over a dimming duration has no TLAs detectable by a human observing the light output.

This invention discloses a high-power dimmer, comprising a zero-crossing signal detection circuit, a PWM control circuit, a MOS drive circuit, and a MOS switching circuit. The zero-crossing signal detection circuit includes a voltage divider module, a shaping module, and a positive feedback module. The voltage divider module divides the AC input voltage to obtain a voltage at the voltage divider point. This voltage at the voltage divider point is then passed through the parallel shaping module and the positive feedback module to obtain the output voltage at the output terminal of the zero-crossing signal detection circuit. The output terminal of the zero-crossing signal detection circuit is connected to the PWM control circuit, which determines the positive pulse width duration based on the output voltage. The PWM control circuit is also connected to the MOS drive circuit to turn the MOS switching circuit on and off. This high-power dimmer can adjust the brightness by controlling the duration of the PWM positive pulse width, thereby regulating the load's power input. Furthermore, it features low power loss, high output impedance, strong load capacity, and no flickering during dimming.

The application provides an automatic induction lighting dimming lamp and belongs to the technical field of adjusting lamps. The automatic induction lighting dimming lamp comprises a dimming lamp body, a triangular support frame is fixed to the lower end of the dimming lamp body, a heat dissipation box is fixed to one side of the dimming lamp body, a through hole is formed in one side of the heat dissipation box, a wind cooling assembly is clamped in the through hole, one end of the wind cooling assembly extends out of the heat dissipation box, a connecting assembly is arranged between the wind cooling assembly and the side wall of the heat dissipation box, an installation plate capable of being clamped into the heat dissipation box through the through hole is fixed to one end of the wind cooling assembly, a controller is detachably installed on the installation plate, a water cooling assembly is arranged on the installation plate, the wind cooling assembly can drive the installation plate to move out of the heat dissipation box, ventilation holes are formed in the two sides of the heat dissipation box, and dust screens are fixed to the inner walls of the ventilation holes. The application has the advantages of good heat dissipation effect of the controller, improved service life of the controller, quick disassembly and assembly of the controller, and convenient maintenance and replacement of the controller.

The utility model provides a hotel customized lamp with a multifunctional atmosphere adjusting function, which relates to the technical field of lighting equipment and comprises a lamp holder, a plurality of lampshades connected with the lamp holder, LED lamp beads arranged in the lampshades and a rotating mechanism arranged at the bottom end of the lamp holder. The bottom ends of the LED lamp beads are connected with the adjusting mechanism, and the adjusting mechanism comprises a light modulator module and a color adjusting module; the light modulator module is used for controlling the brightness of the LED lamp beads; the color adjusting module is used for controlling the light color of the LED lamp beads; the rotating mechanism is movably connected with the effect lamp, and the effect lamp is used for creating a preset atmosphere; according to the utility model, through the arrangement of the light modulator module and the color adjusting module, the brightness of the LED lamp beads and the light color can be controlled respectively, the diversified atmosphere creation requirements of hotels can be met, and the experience feeling of customers is improved.

The utility model discloses a five-in-one dimming stroboflash-free constant-current power supply circuit, which comprises an EMI circuit, one input end of the EMI circuit is connected with commercial power, the output end of the EMI circuit is coupled with the input end of a rectifying circuit, and the rectifying circuit is used for converting input alternating-current commercial power into direct-current power; and the output end of the rectifying circuit is coupled with the input end of the single-stage PFC flyback circuit through the active and passive bleeder circuit. According to the invention, the active and passive bleeder circuit can ensure that the minimum holding current of the silicon controlled knob is not turned off by mistake; one-stage DC-DC is output to realize a wide output voltage range; the single-chip microcomputer detects the voltage of the silicon controlled rectifier knob after phase cutting or 0 / 1-10V connected with the DIM + and the DIM-, the adjustable resistor and the PWM signal which are converted into a dimming signal. The circuit has the advantages that the circuit is compatible with most front-cut and back-cut silicon controlled rectifier dimming knobs, 0 / 1-10V dimmers, adjustable resistors, PWM dimming and 9-45V output voltage ranges, and the dimming process is smooth and free of stroboflash.

A load control device for controlling the amount of power delivered from an AC power source to an electrical load is operable to conduct enough current through a thyristor of a connected dimmer switch to exceed rated latching and holding currents of the thyristor. The load control device comprises a controllable-load circuit operable to conduct a controllable-load current through the thyristor of the dimmer switch. The load control device disables the controllable-load circuit when the phase-control voltage received from the dimmer switch is a reverse phase-control waveform. When the phase-control voltage received from the dimmer switch is a forward phase-control waveform, the load control device is operable to decrease the magnitude of the controllable-load current so as to conduct only enough current as is required in order to exceed rated latching and holding currents of the thyristor.

1. The name of the design product: the panel of dimmer. 2. The use of the design product: the dimmer is used to adjust the brightness of the lighting device, and the panel of the dimmer is used for the control panel of the dimmer. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: the perspective view of design 1. 5. Design 1 is designated as the basic design. 6. Other circumstances that need to be explained: the solid line part in the view is the part claimed, and the dashed line part is not claimed.

1. The name of the design product: timing dimmer switch. 2. The use of the design product: timing dimmer switch. 3. The design points of the design product: in shape. 4. The picture or photo that best shows the design points: perspective view.

To suppress deterioration of the external appearance of a dimmer due to sagging of a polarizing portion.SOLUTION: A dimmer D includes a first outer frame 11, a second outer frame 25, an intermediate frame 41, a first polarizing unit 51, and a second polarizing unit 52. The intermediate frame 41, to which the second polarizing unit 52 is fixed, is moved vertically relative to the first outer frame 11, to which the first polarizing unit 51 is fixed, thereby adjusting a degree of light transmission. A pair of intermediate main frame portions 42 of the intermediate frame 41 have protrusions that protrude toward a pair of first outer main frame portions 12 (rear side) of the first outer frame 11. A guide portion 17 of each first outer main frame portion 12 protrudes toward the intermediate main frame portions 42 (front side) and engages the protrusions from an inner side in a left-right direction, guiding vertical movement of the protrusions. At least one of the protrusions is configured by an inclined protrusion 44 that is inclined in front-rear and left-right directions so as to be positioned outward in the left-right direction toward the first outer main frame portion 12 (rear side).SELECTED DRAWING: Figure 10

A lighting system includes a power supply circuit configured to generate a drive signal for powering a light source based on an input power signal; a temperature sensor configured to measure a light source temperature corresponding to the light source; a current control circuit coupled to the light source and configured to adjust a current of the light source based on the drive signal and a reference signal; a channel controller configured generate the reference signal based on a dimmer setting, and to generate a compensation drive signal based on the light source temperature; and an auxiliary light configured to generate compensation light for compensating a correlated color temperature (CCT) drift in an output light of the light source based on the compensation drive signal.