LED Output Consistency in Multi-Device Systems

Uniformly controlling the illuminance of LED lighting systems with multiple LED arrays containing LEDs with different forward voltages. The method involves individually controlling the current applied to each LED in an array based on its illuminance, then balancing the total array illuminance by adjusting the current limits. An illuminance detection unit finds the lowest illuminance LED in each array. It then sets the array current limits to make all LEDs have the same illuminance as the lowest one. This compensates for variations in forward voltage. By independently controlling the current for each LED and array, it balances illuminance across arrays with mixed LED types.

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Independently controlling the dimming of multiple channels of LED lights using a single controller. The method involves dividing the controller's output voltage into separate dimming values for each channel based on the gear position of a PWM signal. This allows independent control of each channel's brightness. The division is achieved by sampling the PWM signal and output voltage in each gear to find the unique dimming values.

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Synchronizing photon emission from multiple LED lights to improve efficiency and reduce power stress. The LED lights receive timing signals from a master controller, compare it to their own internal clock, and adjust accordingly to synchronize. This allows commands to be transferred between lights through the master. The lights also pulse at reduced rates to maximize response without full power. By coordinating emissions, it avoids unnecessary simultaneous illumination. The lights also use unique IDs and channels to ignore errant signals.

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Controlling multiple LED lights using a central controller that provides precise and versatile control over the lights. The controller connects to multiple LED lights and allows two modes of operation: preset mode and real-time mode. In preset mode, the controller sends predetermined signals to the lights. In real-time mode, the controller receives signals from an external source like a computer and passes them on to the lights. This allows different control methods for different applications, such as synchronized flashing of all lights or independent control of individual lights.

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Lighting device and two-way communication lighting control system that synchronizes and controls color temperature and brightness of auxiliary lighting parts of separate lighting devices connected through a network when the primary lighting device adjusts its color temperature and brightness based on user behavior and atmosphere. The secondary lighting devices receive the color temperature information from the primary device and adjust their lights accordingly. It allows remote synchronization of lighting color and brightness across devices based on the primary device's settings.

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Synchronous lighting control for large-scale lighting systems using a master-slave configuration with grouping. The lighting control method involves dividing a large number of candidate LEDs into groups, with one LED from each group as the master. The masters are connected directly to the control device, while the slaves connect to their masters using a secondary protocol. This allows synchronized lighting control by sending commands to the masters, which propagate to the slaves. Grouping optimizes efficiency by avoiding individual control of each LED.

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Efficient and precise control of multiple LED lights using a simple hardware setup and algorithms to reduce cost and improve user experience. The control method involves a light source controller, input module, driving module, feedback unit, and multiple LED lights. The controller parses user input to extract brightness and color parameters, gets ambient light, generates driving instructions for each LED based on the parameters and ambient light, and sends them to the driving module. This allows accurate control of multiple LED lights using a basic setup compared to complex hardware and algorithms.

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LED dimming and color adjustment system that allows precise and independent control of individual LED lights for creating customized lighting environments. The system has an external controller like a phone, remote, or computer that connects wirelessly to a wall-mounted control panel. This panel communicates with a processor module containing multiple LED light controllers. Each group of LED lights is connected to a separate controller to enable independent dimming and color adjustment. This allows accurate and tailored lighting effects compared to overall dimming buttons.

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Controlling multiple LED groups in a single lighting fixture to produce different color temperatures and intensities using a single driver. The controller receives color temperature and intensity settings. It generates control signals to turn the LED groups on/off in a cycle based on the color temp setting. The LED groups are dimmed based on the intensity setting. By controlling the duty cycle of each LED group, the overall color temperature is adjusted. This allows a single driver to power multiple LED groups for variable color temps and intensities.

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A smart lighting system using 5G communication for efficient and flexible control of LED lights. The system has LED lamps with controllers that communicate over 5G. It allows intelligent dimming of individual lamps or groups based on unique identifiers. The system also has features like loop dimming, remote dimming from servers, and local dimming based on environmental parameters. The controllers can also monitor lamp health and faults. The 5G connectivity enables scalable, flexible, and reliable lighting control without needing dedicated power lines or mesh networks.

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Two-wire LED lamp system for dimming and color temperature control using a single controller for multiple lamps without additional modules or drivers in the lamps. The system has a two-wire LED controller that receives remote control signals and generates complementary PWM signals to simultaneously adjust brightness and color temperature of connected LED lamps. The lamps have constant current drivers. The controller's half-bridges drive the lamps and it has sensors/modules for feedback. This allows intelligent dimming and color tuning of multiple lamps over two wires by synchronously adjusting PWM duty cycles. It enables direct AC connection and avoids stroboscopic flicker.

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Low-profile LED lighting module with reduced cross-section and improved light uniformity. The module uses primary optics to customize the light output from multiple LEDs and a reflective back surface to redirect and blend the light. A secondary diffuser scatters the light for uniform emission. The module has a minimized height-to-width ratio and reduced LED density to balance efficiency and uniformity.

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A method to synchronously control multiple LED lights using a single remote control. The method involves establishing a one-to-one correspondence between each LED controller and the remote control. When the remote sends a mode or speed, all controllers run the same change. One controller becomes the host and sends a sync frame every 0.5 seconds. Others receive and forward the sync. If a controller doesn't receive, it becomes host. This allows simultaneous synchronized changes across multiple controllers using a single remote.

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Intelligent dimming and color adjustment for multi-primary LED lighting that allows high quality, tunable white lighting with high color rendering index (CRI) and dimming capability. The method involves using multiple primary LED colors (e.g., red, green, and blue) instead of just white LEDs. By optimizing the mixing ratios of the primaries at different dimming levels, the CRI remains high. This is in contrast to white LEDs where CRI drops when dimmed. The multi-primary LEDs are driven by a control module that calculates the optimal mix based on dimming level. The system uses wireless networking and supports multiple modes like ZigBee, WiFi, and Bluetooth.

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LED module with customized connection of series parallel circuits to achieve uniform thermal loading of LEDs for optimum heat dissipation and reliability. The number of LEDs in the parallel circuits is varied based on their position on the circuit board. Fewer LEDs are connected in parallel in the central region compared to the edge regions. This reduces the current and heat in the center where cooling is poorer.

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LED module lamp with remote dimming control that allows synchronous color temperature adjustment in multi-module setups without requiring individual segmented switches on each module. The lamp has a central controller connected to a remote control module. The LED modules are connected to the controller via a terminal line. This allows dimming and color temperature adjustment from the remote control module to synchronously change all modules. The centralized controller eliminates the need for individual segmented switches in each module.

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Managing lighting configurations in networks of intelligent lighting devices to enable fine-grained control of LED light output. The system allows nodes like outdoor lighting controllers to be added to a gateway and receive lighting configurations from it. Nodes can also have a "lockdown" mechanism to tie them to a gateway and prevent bouncing between multiple gateways. This prevents mixing of lighting configurations from different systems. The configurations can adjust brightness, light frequencies, color temperature, etc. to optimize lighting for applications like outdoor lighting, human centric lighting, and energy savings.

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Dimming and CCT tuning control for LED lighting systems using existing low voltage signals to avoid proprietary controllers. The control circuit mixes signals from separate dimming and CCT tuning inputs to generate PWM signals for driving multiple LED types in each lamp. This allows independent dimming and CCT adjustment without inconsistent results due to voltage drop. The circuit determines factors based on the dimming level and CCT ratio to generate the PWM signals.

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A lighting system with adjustable color temperature that allows consistent color transitions across multiple devices. The system uses wireless signals to propagate color temperature commands throughout the lighting network. A master device sends wireless signals specifying a color temperature to individual devices. The devices receive, process, and retransmit the signals to other devices. This allows uniform color transitions across the system when commanded by the master.

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LED light source device and control method that allows independent adjustment of brightness and color temperature of multiple LED strings. The device has multiple LED strings connected to a power supply. Brightness is adjusted by a first signal. Color temperature is adjusted by a second signal for one string and a third signal for the other string. The duty cycle of the first signal determines overall brightness. The duty cycle of the second signal is smaller than the third signal for one string to have higher color temperature. This allows independent brightness and color adjustment without affecting overall brightness.

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