Duration/Width Modulated Pulse Demodulation TRIZ Cases

Converts PWM dimming signals to output voltage in one cycle using fixed-ratio counting, avoiding large capacitors and complex LED driver circuits.

Extracts PWM duty cycle digitally to generate stable analog dimming voltage in one cycle without large capacitors or complex peripheral circuits.

Combining pulse width and amplitude modulation lets one carrier transmit independent datasets with higher spectral efficiency and less hardware.

External switch-based frequency adjustment retunes ultrasonic transducers without disassembly, reducing heat, excess current, and service time.

Auto-calibration uses sensor offset nulling and PWM demodulator adjustment to correct temperature and humidity effects in gas sensing.

Temperature and humidity feedback drives PWM offset nulling in a gas sensor, improving leak detection accuracy without complex calibration circuitry.

Dynamic end-of-message timing uses PWM auxiliary symbols to fill allotted transmission time, improving synchronization and bandwidth use.

A long-pulse symbol embeds an extra bit into payload transmission, preserving data rate while enabling reliable CRC, ECC, or control signaling.

An RC ripple and comparator stage lets a PWM filter switch output behavior at a duty-ratio threshold, avoiding fixed 0 V output.

Grouped pulse-width analysis determines symbol rate without a clock estimate, improving accuracy by filtering perturbations and using all pulses.

Optical PWM generation replaces slow comparators to produce narrow, low-distortion RF transmission signals from amplitude and phase data.