Discharge Lamp Drive Device Adaptive Control
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Solution Overview
Problem
Existing discharge lamp drive methods fail to adequately account for individual differences between discharge lamps, leading to insufficient extension of lamp life.
Innovation Solution
A discharge lamp drive device that adjusts drive patterns based on accumulated lighting time and individual differences, utilizing machine learning to select the most suitable drive pattern and varying execution times and frequencies to optimize lamp operation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a fixed drive pattern 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 dynamic drive patterns that adapt to individual lamp characteristics. The control system monitors lamp-specific parameters such as inter-electrode voltage and adjusts drive patterns accordingly, transitioning from static to dynamic control to extend lamp life while managing complexity through adaptive rather than purely predetermined approaches
Solution Approach 2:
The system incorporates feedback mechanisms by monitoring lamp operation parameters and using this information to adjust drive patterns. The control section determines appropriate drive patterns based on detected lamp characteristics, creating a closed-loop system that extends lamp life through continuous adaptation rather than fixed predetermined patterns
2Reliability
If drive patterns are customized for each individual lamp, then lamp life is extended, but the complexity of managing multiple drive patterns increases
Solution Approach 1:
The system enables lamps to effectively 'identify' themselves through their electrical characteristics. The control section automatically detects lamp-specific parameters and selects appropriate drive patterns without requiring manual intervention or complex user management, allowing individualized control while maintaining ease of operation
Solution Approach 2:
The patent manages complexity by changing drive pattern parameters dynamically based on detected lamp characteristics rather than maintaining separate fixed patterns for each lamp. The control system adjusts parameters such as drive waveform and timing based on inter-electrode voltage and other lamp-specific measurements, reducing management burden while achieving individualized optimization
3Device complexity
If the same drive pattern is applied to all lamps at the same voltage, then the control logic is simple, but individual lamp differences cause suboptimal performance
Solution Approach 1:
The system performs preliminary detection of lamp characteristics before applying drive patterns. The control section measures inter-electrode voltage and other parameters during lamp operation to pre-determine the most suitable drive pattern, allowing the system to prepare appropriate control parameters in advance based on individual lamp behavior rather than reacting to performance degradation
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
This approach extends the life of discharge lamps by allowing for tailored drive patterns, even under the same inter-electrode voltage, thereby accommodating individual variations and improving overall lamp longevity.
Implementation Method 1
discharge lamp drive device... supplying a drive current I to a discharge lamp 90
Data Source
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AI summary
A discharge lamp drive device includes a discharge lamp drive section 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 drive section, and a storage section adapted to store a plurality of drive patterns of the drive current, the drive patterns each have a plurality of drive parameters, the plurality of drive patterns includes a first drive pattern and a second drive pattern different in a value of at least one of the drive parameters from each other, and the control section executes the first drive pattern and the second drive pattern in accordance with at least one of accumulated lighting time of the discharge lamp and an individual of the discharge lamp in a case in which an inter-electrode voltage of the discharge lamp is at a predetermined voltage value.