Multi-Output Dimming Power Supply for Smooth Hybrid Mode Control
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Solution Overview
Problem
Existing dimming power supplies face challenges in synchronizing different color temperatures and colors, leading to issues with flicker, noise, and dimming smoothness, and require a wide range of power supplies for various applications, complicating the selection process for end users.
Innovation Solution
A multi-output dimming power supply with switchable output modes, comprising a dimming signal processing circuit, PWM regulation modules, an electromagnetic filter circuit, a switching power supply main control circuit, a transformer, a rectifier filter circuit, a feedback regulation loop, a single-chip microcomputer control circuit, and a mode-switching circuit, allowing for switching between voltage regulation, PWM regulation, and hybrid regulation modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If voltage regulation mode is used, then dimming smoothness is improved, but synchronization of different color temperatures and colors deteriorates
Solution Approach 1:
The power supply is designed with multi-output capabilities that can simultaneously support voltage regulation mode and PWM regulation mode across multiple channels. This allows the system to universally handle different lighting requirements including synchronized color temperature and color control while maintaining smooth dimming performance.
2Adaptability or versatility
If PWM regulation mode is used, then adaptability to different color temperatures and colors is improved, but dimming smoothness deteriorates due to flicker and noise
Solution Approach 1:
The system dynamically switches between PWM regulation mode and voltage regulation mode based on operational requirements. This dynamic adaptation allows the power supply to maintain high adaptability for different color temperatures and colors while ensuring smooth dimming by selecting the appropriate regulation mode for each specific operating condition.
3Illumination intensity
If hybrid mode is used, then dimming smoothness is improved, but synchronization of different color temperatures and colors deteriorates
Solution Approach 1:
The power supply incorporates multiple independent output channels, each capable of operating in voltage regulation mode or PWM regulation mode. This multi-functional design enables simultaneous synchronization of different color temperatures and colors across channels while maintaining smooth dimming performance through selective mode operation.
4Adaptability or versatility
If multiple power supply models are developed for different applications, then adaptability is improved, but device complexity increases
Solution Approach 1:
The patent merges multiple power supply functions into a single integrated device. The multi-output dimming power supply combines voltage regulation capabilities and PWM regulation capabilities in one unit, allowing it to replace multiple separate power supply models. This consolidation maintains adaptability across various application scenarios while reducing the complexity of selecting and managing multiple different power supply models.
Data Source
AI summary
The present invention provides a multi-output dimming power supply with switchable output modes and its use method, comprising: a dimming signal processing circuit, at least two PWM regulation modules, an electromagnetic filter circuit, a switching power supply main control circuit, a transformer, a rectifier filter circuit, a feedback regulation loop, a single-chip microcomputer control circuit, and a mode-switching circuit connected in sequence; wherein the feedback regulation loop is further connected to the main control circuit, and a signal input of each PWM regulation module is connected to each control terminal of the single-chip microcomputer control circuit. A positive pole of each PWM regulation module is connected to an output of the rectifier filter circuit and a load, respectively, and a negative pole is connected to the load. The present invention is capable of selecting different output modes for different applications, facilitating the achievement of superior dimming effects.