Electrical Apparatus TRIZ Cases

A magnetic fiber holder system uses perpendicular contact surfaces to secure positioning without mechanical fasteners.

Gravity-sensing switch automatically inverts LED flame direction to eliminate mechanical noise and improve reliability.

A light-emitting assembly uses a shading mask with side emergence holes and reflecting surfaces to redirect lamp bead light.

An electrical box assembly uses an integral siding block to create a drainage channel for water management.

A control circuit determines actual lamp current by forming a quotient from inverter power and voltage drop to generate precise switch clock signals.

A ballast line detection circuit identifies power source type using a Zener diode and comparator to regulate voltage.

A low-voltage controller receives step signals to adjust lamp intensity levels for patient comfort.

A modular illumination apparatus connects to support bodies and adjusts light intensity and spectrum based on real-time sensor measurements.

Integer multiple of parameter lambda a minimizes resonance current, reducing electromagnetic noise emission.

An LED controller dynamically adjusts bleeder current through a single sink path to maintain TRIAC conduction stability.

A light source device uses an optical sensor with exposure periods shorter than the minimum pulse width to detect emitted light intensity.

A horticultural lighting module switches between discrete spectral modes to optimize plant biological processes.

A buck-boost device supplies constant current to primary LEDs while deriving voltage for secondary buck devices.

Snaking the tubular outer member contacts conductive paths, preventing inner surface damage from vibration-induced shaking.

An AC LED drive circuit uses voltage detection to dynamically switch LED strings between series and parallel configurations for varying input voltages.

Wireless controllers command a harmonized system to integrate mixed LED fixtures, resolving the trade-off between energy efficiency and ease of operation.

An artificial load circuit compensates for low power factor in high-efficiency lighting, enabling reliable dimming without neutral connections.

A current splitter circuit divides driver output into separate paths for multiple LED arrays.

A method compensates OLED drive circuit aging by measuring threshold voltage and resistance changes through generated test images.

A third circuit couples in parallel with a second LED circuit to draw feeding voltage for centralized dimming and color control.

An LED lighting device uses a resistor to distribute heat away from the switch unit, preventing overheating and reducing power consumption.

A friction-fit elastomeric blocking body seals building support structure holes, reducing air and moisture leakage during cable installation.

A multiple-legged transformer balances currents across parallel cold cathode fluorescent lamps using specific winding configurations.

A digital dimming LED drive circuit uses demodulation and constant current chopping to adjust brightness based on input signals.

Multilayer PCB design merges driver and LED arrays into one fixture, resolving spatial constraints while enabling independent channel control.

A backlight control module adjusts power switch timing to maintain constant current ripple values across multiple light emitting channels.

Switchable resistors in the voltage divider counteract battery voltage drops, stabilizing the comparison window for reliable occupancy detection.

A LED linear driving circuit uses parallel discrete MOS tubes to improve thermal management and allow flexible load configuration.

Variable frequency modulation adjusts LED on and off periods to eliminate visible intensity steps while maintaining stable output frequencies.

A wireless LED strobe master lamp adjusts power and duration via a touch screen interface.

A dimmer controller derives synchronization signals from voltage drops across the switching device during conduction.

A light-emitting device uses selection signals to designate chips for lighting up.

An LED tube lamp circuit detects pin impedance to verify correct installation and disconnect power when contacts are missing.

An arbitration unit analyzes mains voltage waveforms to select phase cut or digital modes, eliminating flickering at low brightness levels.

Bayonet hooks engage spring-loaded latches to eliminate screw assembly complexity in floor boxes.

Reduces parasitic capacitance in stacked phase-change material RF switches via compensation capacitors to improve power handling.

A tubular seal uses injection molding to form an integral sealing element around a pipe, creating a unified component without separate assembly steps.

A control unit manages LED duty cycles and forward current to maintain smooth brightness transitions.

A resistance change element uses an injection layer with a higher work function to block electron tunneling between electrodes.

A lighting control device uses received signal strength indication to automatically adjust LED brightness and color temperature levels.

A lighting system adjusts illumination range using radio frequency signal strength thresholds to activate specific light-emitting modules.

Delaying PWM activation until a specific current level in the triangular waveform eliminates beat frequencies and visible flicker at low dimming levels.

Removing current control loops creates constant input impedance, preventing voltage imbalances in series-connected LED luminaire arrays.

An autonomous LED matrix system uses independent sensors and Kalman filtering to dynamically adjust light distribution, eliminating manual switching complexity.

Modular LED fixtures integrate sensors and mesh networks to reduce wiring costs in retrofit applications.

A light generating device uses a switch matrix to reconfigure LED circuits between series and parallel modes based on detected input voltage levels.

A resin film with hygroscopic particles and dispersant provides sealing for organic electroluminescent devices.

Elastic hose creates moisture-tight seal via press fit, eliminating complex sealing mechanisms and additional materials.

Tapered inorganic barrier layer edges on OLED encapsulation structures prevent moisture ingress along lead wires while maintaining device flexibility.

A terminal reception block accommodates a bus bar while a dedicated protector covers the protruding end portion within the casing.