LED Control Apparatus Expandable Dimming Patterns
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Solution Overview
Problem
Existing control systems for light emitting diodes (LEDs) lack expandability in controlling luminance patterns, as they are limited by the number of combinations in table information, which restricts the flexibility and complexity of dimming patterns.
Innovation Solution
A control apparatus for LEDs that includes a storage unit for table information indicating luminance magnitude and cycle, along with a control section that repeats the combination of luminance and cycle up to a specified number of times, allowing for various dimming patterns to be realized through pulse width modulation (PWM) control.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If table information stores fixed combinations of luminance magnitude and cycle, then control patterns are simple to implement, but the expandability and flexibility of LED control are limited
Solution Approach 1:
The patent segments the control parameters into distinct fields within table information: luminance magnitude, cycle, and number of times. This segmentation allows each parameter to be independently configured and combined, enabling flexible control patterns without requiring complex interdependent calculations. The control section processes each segment separately, simplifying the overall control logic while expanding adaptability.
Solution Approach 2:
The patent introduces dynamic configurability by allowing the table information to specify the number of times each luminance combination is executed. This dynamic parameter enables the same basic control structure to adapt to different control patterns by simply changing the repetition count, thereby expanding versatility without increasing structural complexity.
2Adaptability or versatility
If multiple control patterns are stored in table information, then diverse dimming patterns can be achieved, but storage resource consumption increases
Solution Approach 1:
The patent creates a universal control structure where a single table information format can generate multiple dimming patterns by varying the number of times parameter. Instead of storing separate control data for each pattern, the same basic luminance and cycle combinations are reused with different repetition counts, making the storage system multi-functional and reducing overall storage requirements.
Solution Approach 2:
The control structure implements a nested organization where the number of times field contains nested repetition of the luminance and cycle combinations. This nesting allows compact representation of complex patterns by embedding simpler patterns within repetition structures, thereby achieving diverse dimming patterns with efficient storage utilization.
3Adaptability or versatility
If the control section repeats luminance combinations multiple times, then expandability of control patterns is improved, but processing time and energy consumption increase
Solution Approach 1:
The patent performs preliminary configuration by pre-defining luminance magnitude and cycle combinations in the table information before execution. The control section only needs to retrieve and repeat these pre-configured combinations according to the number of times parameter, avoiding real-time calculation overhead and reducing processing time while maintaining expandability.
Data Source
AI summary
A control apparatus of a light emitting diode includes a storage unit that stores table information indicating a combination of a magnitude and a cycle of luminance and the number of times of the combinations; and a control section that controls the light emitting diode in accordance with a control pattern in which the combination of the magnitude and the cycle of the luminance indicated in the table information is repeated up to the number of times of the combinations.