Discharge Lamp Drive Device Adapting to Individual Differences
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing discharge lamp drive methods fail to adequately account for individual differences between discharge lamps, leading to insufficient lamp life extension.
Innovation Solution
A discharge lamp drive device with a control section that executes multiple drive patterns with varying parameters, including AC and DC current periods, and uses machine learning to select the optimal pattern based on individual lamp characteristics and power changes, allowing for extended lamp life regardless of individual differences.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a single drive method is used for discharge lamps, then the control system is simple, but the lamp life cannot be sufficiently extended due to individual differences between lamps
Solution Approach 1:
The patent implements multiple drive patterns (first, second, third patterns) with different drive parameters that can be dynamically selected based on individual lamp characteristics. The control section chooses different drive patterns according to the specific lamp being operated, transforming the static single-drive-method system into a dynamic multi-pattern system that adapts to individual lamp variations, thereby extending lamp life without requiring overly complex control logic.
Solution Approach 2:
The patent varies drive parameters across different drive patterns to optimize lamp life. Each drive pattern contains different parameter settings (such as pulse width, frequency, amplitude), and the control section selects the appropriate pattern based on individual lamp characteristics. This parameter variation approach allows the system to accommodate individual differences between lamps and maximize their operational lifespan.
2Reliability
If multiple drive patterns are executed to account for individual differences, then lamp life is extended, but the control complexity increases
Solution Approach 1:
The control section automatically selects the appropriate drive pattern based on individual lamp characteristics without requiring manual intervention. The system self-adjusts by executing different drive patterns (first, second, or third pattern) according to the specific lamp being operated, eliminating the need for users to manually configure complex control parameters while still achieving optimized lamp life extension.
3Adaptability or versatility
If drive parameters are fixed, then the control system is simple, but it cannot adapt to individual differences between discharge lamps
Solution Approach 1:
The patent divides the drive parameters into distinct drive patterns (first, second, and third patterns), each with specific parameter configurations. Instead of using a single complex set of adjustable parameters, the system segments the parameter space into discrete, pre-configured patterns that can be selectively applied. This segmentation approach provides adaptability to individual lamp differences while maintaining control system simplicity through pattern-based management.
Data Source
AI summary
A discharge lamp drive device includes a discharge lamp driver adapted to supply a drive current to a discharge lamp having a first electrode and a second electrode, a control section adapted to control the discharge lamp driver, and a storage section adapted to store a plurality of drive patterns of the drive current. Each of the plurality of drive patterns has a plurality of drive parameters. The control section executes at least three of the drive patterns in a case in which drive power to be supplied to the discharge lamp is in a predetermined power band, and in a case in which an inter-electrode voltage of the discharge lamp is a predetermined voltage value. Any two of the at least three drive patterns are different from each other in a value of at least one of the plurality of drive parameters.