Electric Lighting Sources TRIZ Cases

See how a portable IPL sterilizer replaces UV contact methods with xenon-lamp pulsed light to a

Nanosecond pulsed power from a wide band gap converter stabilizes excimer lamp discharge, extends lamp life, and speeds Far-UVC sanitization.

A battery-backed standby circuit keeps sensors active and triggers low-level light only when motion or low ambient light is detected.

A resonant AC driver uses anti-parallel laser diodes and LEDs with a parallel capacitor to simplify color control and avoid multi-channel wiring.

Dynamic current-limit switching after each AC control time helps dimmers handle inductive and capacitive loads without unstable overcurrent.

Capacitive touch sensing replaces mechanical switching to add gesture control and visual feedback for multi-function electrical load control.

A toroid-based current signal lets a Wi-Fi three-way switch detect relay orientation without inter-switch communication or losing mechanical switch compatibility.

Capacitive touch input, LED feedback, and a perpendicular antenna expand load control functions beyond simple mechanical switches.

Multi-level PFN pulse shaping lets IPL lamps create rapid heat variations while cutting energy use and reducing stress on lamps and capacitors.

Multi-level PFN pulse waveforms create rapid heat variation in IPL treatment while lowering energy demand and cooling complexity.

Pulsed and sustained thyristor gate-drive modes help LED dimmers control high-efficiency loads without neutral wiring or off-state glow.

Operating a transformer near higher circuit resonances boosts lamp voltage and frequency, increasing light output with less size and complexity.

Optical ignition replaces electrodes in a laser-driven plasma bulb, reducing evaporation and stress while enabling compact, stable high-brightness light.

Dual gate-drive modes and zero-crossing detection let a thyristor dim LED and CFL loads without a neutral wire or off-state glow.

A balanced push-pull driver uses dual-tapped inductors and transistor control to power excimer lamps with lower weight and stable output.

By correlating injected electrical energy with circuit response, the controller identifies bulb type for synchronized dimming and burnout detection.

Automatic neutral-wire detection switches between two-wire and three-wire dimming modes to improve zero-cross timing and LED power control.

Wide band gap switching and a planar inductor create nanosecond pulses that stabilize excimer lamp discharge and speed Far-UVC sanitization.

Neutral-wire detection and dual zero-cross sensing let LED dimmers switch between two-wire and three-wire modes while protecting power delivery.

By enabling overcurrent protection only after FET conduction begins, this AC load control case improves LED dimming reliability.

Impedance-based waveform switching helps Far-UVC excimer lamps start faster, sustain stable discharge, and extend lamp life.

Periodic lighting-circuit energization keeps electrons in an excimer lamp, cutting UV startup delay after long idle periods.

PWM boosting and full-bridge inversion convert battery DC into stable 135V AC, turning on leakage-protected LED tubes with a simpler circuit.

A capacitor-backed timing relay blocks hot restart for metal halide lamps, adds load capacity, and shows delay status with indicators.

A parallel bypass resistor keeps current flowing when a series light fails, preserving illumination while limiting energy use and heat buildup.

A protected power supply, relay sense circuit, and microcontroller coordinate relay timing, auto-addressing, and surge handling in AC lighting panels.

Continuous thyristor gate drive and zero-cross detection let neutral-free dimmers control LED and CFL loads without off-state glow.

Temperature feedback and power adjustment shift excimer lamp filaments away from hot spots, reducing mesh damage and extending lamp life.

A balanced MOSFET driver uses dual-tapped inductors and feedback PWM control to power excimer lamps with less size, weight, and drift.

A GCT thyristor shunts flash lamp current after ignition, cutting tail current to improve wafer cooling and lamp life.

A double-contact mechanical switch separates signal input from power regulation to enable stable, high-power single-live-wire dimming and speed control.

Adjusting current pulse count in each AC half-cycle enables low-power LED dimming with complete extinction while avoiding flicker and buzzing.

Constant-power allocation between warm and cool LED loads tunes color temperature while avoiding arc-prone mechanical switching.

Solid-state switching and motion sensing tune LED color temperature and dimming without mechanical arcs, improving safety in explosive areas.

Adjust mixed LED color temperature by complementary power control between two LED loads while keeping total light intensity unchanged.

Reverse complementary power control switches between paired LED loads to tune color temperature while keeping light intensity unchanged.

Reverse complementary power control blends two LED color temperatures through a diffuser while keeping total light intensity unchanged.

Complementary power balancing between warm and cool LED loads switches color temperature without changing total light intensity.

Reverse complementary power control shifts output between two LED loads to tune color temperature while keeping total light intensity unchanged.

Parallel current paths, a switching regulator, and energy storage let a two-wire switch power itself without dimming LEDs or stressing capacitive loads.

Complementary power allocation across two LED loads adjusts mixed color temperature while keeping total light intensity essentially unchanged.

Touchless motion sensing and solid-state switching tune LED color temperature and power safely without arc-prone mechanical switches.

Converts high-voltage phase-cut dimming signals into stable low-voltage control signals to reduce harmonics and protect lighting devices.

Analog setpoint comparison lets the dimming loop keep fine resolution while using a lower-bit A/D converter for faster response.

Built-in carrier selection and synchronization generate multiple modulation formats without external modulators while avoiding glitches and spurs.

A higher-voltage clock path and Vmin data path cut clock-to-output delay and setup time in processor sequential logic.

A backup input circuit and constant drive path keep vehicle headlamps operating when static electricity or surge damage disrupts PWM input control.

PWM duty ratio and capacitor control create a compact soft start for discharge lamp inverters, reducing driver cost and lamp stress.

A power control circuit monitors switching voltage to identify faulty load connections and reports status information.

Frequency modulated current waveforms stabilize DLP projector discharge lamp electrodes, preventing tip burning back and extending service life.