Supply Voltage Varying Control TRIZ Cases

Physical-model-based control voltage tracks driver displacement to cut nonlinear distortion, boost bass, and prevent overtravel.

A replica feedback circuit stabilizes differential output common-mode voltage across input and process variation, preserving gain and peaking control.

Physical-model-based control limits diaphragm excursion and distortion in compact vented or passive radiator loudspeakers while extending bass.

Using input common-mode sensing and feedback biasing, this case stabilizes differential output common-mode voltage under signal and process variation.

A shared low-frequency loop with per-amplifier high-frequency correction tracks supply voltage accurately while cutting circuit area and component count.

By shifting feedback signal phase, this circuit tunes mechanical resonators on both sides of resonance to offset tolerances and drift.

DAC-controlled switching-mode amplification adjusts RF output power linearly in dB without attenuators, improving efficiency and stability.

A charge pump adjusts microphone supply voltage from detected distortion, preventing saturation and preserving clear audio at high sound levels.

Combining analog bias control with digital gain compensation preserves audio fidelity at low volume while avoiding lag and heat in audio amplifiers.

Adjustable phase feedback shifts a mechanical resonator across both sides of series resonance, improving tuning accuracy under tolerances and drift.

Digital gain control in a switching-mode RF transmitter removes wasteful attenuators while keeping output power stable across temperature.

A multi-stage amplifier uses a parallel gain control circuit to reduce differential pair gain during load transients.

A high frequency power amplifier circuit adjusts operating supply voltage to stabilize output.