Electric Lighting Sources TRIZ Cases

A wearable wireless device transmits digital messages to adjust load control parameters via a touch-responsive display and rotatable dial.

Flash lamp annealing controls impurity diffusion by maintaining substrate temperature at a diffusion level before raising it to an activation state.

MCU-controlled relay and PFC circuit limit input surge voltage, preventing electrolytic capacitor damage from grid anomalies.

A switch-mode power supply directly couples a full-bridge converter to a hot-filament cathode using an autotransformer.

A discharge lamp driving device switches control modes to adjust direct and alternating current rates.

Segmented cathodes and pulse width modulation resolve inconsistent write effects in neon lighting.

Twin induction coils detect leakage current while a control chip manages reversed wire protection to reduce assembly complexity.

Accessory wiring carries power and tri-state logic to enable visual feedback in remote dimmers without neutral connections.

Dynamic voltage regulation reduces peak inrush currents in optical gas sensors, extending battery life without adding current sensors.

A light control system uses a power buffer to store and release energy for UV disinfection.

A discharge lamp drive device selects optimal current patterns via machine learning to adapt to individual lamp characteristics.

Dual-threshold asymmetry detection identifies shorted field effect transistors, preventing load damage from asymmetric AC waveforms.

A high voltage offset detection circuit monitors floating node voltage to trigger zero voltage switching signals.

A control circuit detects line voltage presence before enabling battery power to lamps, preventing premature activation during shipping.

A sweep generator cyclically detunes the operating frequency of an electrodeless discharge lamp to generate additional ignition voltage.

A control circuit monitors transformer feedback to detect inverter faults and adjust switching parameters.

A discharge lamp driving device adjusts AC and DC current ratios to maintain stable electrode shape.

A forward converter design uses two electronic switches and diode networks to generate galvanically isolated output voltages from three-phase inputs.

Alternating AC and DC current periods varies the arc flare angle, preventing inner wall devitrification from excessive localized heating.

Electronic ballast supplies high frequency AC voltage to a high-pressure sodium lamp with specific arc length.

Longitudinal collection from elongate plasma boosts brightness for metrology throughput.

A discharge lamp drive device selects drive patterns using machine learning to adapt to individual lamp characteristics.

Hooks and slide locks secure base modules to a pre-mount chassis, eliminating complex wiring and expert installation requirements.

Simulation-based pre-calculation of switching times combined with real-time measurements resolves accuracy errors in EUV discharge plasma generation.

A power supply charges an energy storage capacitor during triac off-periods to provide low-voltage control circuitry power.

A limiter circuit uses a voltage dependent element to bypass common mode chokes and clamp high voltage values.

A discharge lamp drive device selects tailored current patterns based on accumulated lighting time and individual lamp characteristics.

Dynamic switching between fast and slow time constants resolves the contradiction between noise filtering and response speed, preventing lamp extinguishment.

Current sensing detects lower load currents while mains frequency timing reduces reset periods, improving reliability across varying input voltages.

A ballast circuit uses a gate isolation transformer to drive high-side MOSFETs in half-bridge inverters for electrodeless fluorescent lamps.

A universal smart button integrates MOSFETs and a microprocessor to switch, dim, or operate connected electrical devices.

Asynchronous capacitor charging prevents voltage drop and flickering in two-wire electronic switches.

Anti-parallel diodes and transistors in the determination unit detect the input connector state, reducing circuit complexity and costs.

A discharge lamp driving device alternates AC and DC current periods to manage electrode thermal load.

Periodic heating pulses remove adsorbed gas molecules from a cold field emitter, maintaining high emission current and preventing stability decline.

A projector control section adjusts cooling fan speed based on discharge lamp inter-electrode voltage to maintain optimal operating temperature.

Synchronizing light source switching with modulation polarity periods cancels horizontal-striped brightness unevenness in projected images.

A lighting device controller calculates power values for AC voltage half cycles to detect ground faults in discharge lamps.

Lower frequency RF signals capacitively couple energy into the electrodeless bulb, resolving poor system efficiency caused by high-frequency excitation losses.

A control circuit varies dead time based on body diode current detection to maintain optimal switching conditions.

Switching the shield electrode from ground to floating potential suppresses unwanted discharges while maintaining stable illumination intensity.

A display controller switches to low-power mode by detecting voltage levels and deactivating auxiliary circuits.

Master dimmer transmits signals during specific AC power half-cycles to enable accessory dimmers to detect device type and selectively enable functions.

Silica-alumina films prevent abnormal discharge and peeling by neutralizing charge accumulation and lengthening creeping discharge distances.

A discharge lamp drive device executes multiple drive patterns with varying parameters to extend operational life.

An electronic circuit uses a comparing unit to control a switching unit and capacitive component, eliminating bulky Zener-diodes and reducing power dissipation.

Alternating AC and DC currents stabilizes arc bright spots, preventing flicker when drive power is lower than rated.

Alternating asymmetric and symmetric AC periods balances electrode heating to prevent protrusion deformation in discharge lamps.