Electric Lighting Sources TRIZ Cases
- High Side Driver Thermal Reset for Incandescent Lamp Inrush
A high side driver circuit applies an extended cooling interval to reset MOSFET temperature before resuming operation.
- Fluorescent Lamp Array Voltage Control via Digital Microcontroller
Firmware-based digital control replaces unstable analog circuits to maintain light output within narrow tolerances despite temperature variations.
- Projector Cooling Control for Discharge Lamp Life
A projector controller detects installation attitude to manage discharge lamp cooling.
- Lamp Type Detection via PFC Switch-On Time
A power factor correction circuit determines lamp type using switch-on time.
- Discharge-Lamp Driver With Variable AC Periods for Electrode Wear
A discharge-lamp driving device controls alternating current periods to manage electrode heat loads and promote protrusion growth.
- Amalgam Lamp Dimming via Electrode Heating Current
Segmented electrode circuits adjust auxiliary heating based on discharge current to sustain mercury vapor pressure during dimming.
- Resonant Switching System Frequency Control via Current Monitoring
A resonant switching system adjusts operating frequency based on working current detection within a defined observation window.
- Excimer Lamp Light Source Device Tube Axis Discharge Control
An inverter supplies power below the contracted discharge threshold while a xenon gas medium eliminates mercury hazards for safe household use.