Electric Variable Regulation TRIZ Cases

A monolithic bias network uses temperature sensing and a current source bank to keep RF power amplifier gain flat and efficient across wide ranges.

A controller monitors comparison signals and load transitions to suppress internal voltage undershoot and overshoot in an LDO regulator.

Different FET threshold voltages create a temperature-stable reference voltage without PTAT/CTAT balancing, cutting circuit complexity and power.

A current-shunt path controls resistor drop to generate a stable sub-0.7 V reference with lower resistance, less ripple, and wide-temperature operation.

A supplemental transient loop detects output-voltage shifts and drives the pass transistor faster, cutting LDO overshoot without large capacitors.

Mode-switched operating currents let a constant voltage circuit resist parasitic-inductance oscillation in test mode while preserving PSRR in normal use.

An AC-coupled bias path speeds voltage regulator response to fast load changes while keeping output voltage stable without extra power draw.

Common-drain switch-load stages isolate decoupling capacitors from the control loop to limit load-change spikes and keep regulation stable.

Darlington and inverted Darlington pairs compensate base resistance effects in a bandgap reference circuit to stabilize voltage across temperature changes.

A dedicated startup loop senses pass MOSFET current and adjusts gate voltage to limit LDO and bypass inrush without brownout.

A bipolar error amplifier enforces one PTAT path to avoid multiple operating points while cutting area, trim needs, and current drift.

Chained offset amplifiers reduce resistor-ratio drift in bandgap references and enable single-temperature trimming for stable output.

A current mirror with op-amp and resistor sensing maintains accurate output current limiting even when the output voltage falls near 0 V.

A switched-capacitor gate-boost circuit lets an N-type LDO handle high current with less area and lower output ripple.

Adaptive control keeps only safe power stages active, cutting leakage while avoiding voltage drops during fast SoC wake-up.

Current-level switching keeps the FET in saturation while changing power sources, preventing output-voltage transients.

A clamping current source limits feedback-driven quiescent current in an LDO, improving stability and efficiency across load changes.

Selective shared compensation keeps a dual-stage LDO stable with low output capacitance, reducing quiescent current and area in low power modes.

A boost circuit speeds cascode bias transitions during analog gain changes, stabilizing ramp signals for more reliable image capture.

A summed fast low-gain loop and slow high-gain loop improves DC regulation, phase margin, transient response, and ripple suppression.

A switch-based feedback circuit adjusts node voltage by load state, widening tolerance range while cutting regulator complexity and cost.

A watchdog loop boosts or pulls down LDO bias current outside the main feedback path to stabilize output during sudden load changes.

A scaled power gate replica measures branch current and tunes gate bias to curb transient current steps, self-heating, and loop instability.

A controller reconfigures the LDO output stage from load activity signals to limit voltage droop and reduce reliance on large capacitors.

Higher external supply voltage is converted on-chip to lower voltage and higher current, freeing IC pins for signals while maintaining power delivery.

Correction currents with CTAT and PTAT behavior stabilize bandgap reference voltage across -40°C to 125°C with less than 1 mV variation.

A flipped-gate CMOS reference circuit tunes current ratios to reach zero-temperature coefficient operation while avoiding BJT substrate noise.

By keeping the output transistor off until the op-amp is operating, this regulator avoids load overvoltage while shortening startup and saving chip area.

Startup circuitry forces an LDO into a safe default mode until output voltage can reliably power the logic controller and stabilize control signaling.

FET bias and output circuits generate opposing temperature-coefficient currents to stabilize reference voltage and current with low power and small area.

Cascaded PTAT cells mirror current into matched arms to cancel noise and deliver a more accurate, stable CMOS voltage reference.

A single transformer both generates and injects corrective voltage, cutting regulator weight, waste heat, and transport effort in medium-voltage grids.

A dropout-triggered feedforward path cancels supply noise in a linear regulator, improving PSRR without sacrificing power efficiency.

A feedback path that superimposes substrate noise onto the feedback voltage helps prevent DC offset and IC malfunction in constant voltage circuits.

A current-mirror compensation network reduces parasitic-capacitance and supply-noise effects to stabilize regulated voltage and improve PSR.

A temperature-tracking reference voltage lets this source-follower LDO hold output steady without an op-amp or resistor feedback network.

Dynamic reference-voltage calibration uses feedback and time-integrated detection to keep operation voltages stable under temperature and supply variation.

A diode and feedback-controlled current paths keep regulated voltage above brownout level during supply glitches without large external capacitance.

Conditional feedback switching lets a dual-loop LDO settle quickly under peak currents while maintaining accurate output voltage.

Cascode NMOS decoupling isolates bipolar collectors from supply noise, improving bandgap stability and PSR in AMOLED display circuits.

A dual-mode boosting LDO supplies burst current and compensates voltage drop to keep gate driver output stable with lower average current.

A feedback gain stage boosts loop gain and power supply rejection in a low-dropout voltage regulator while maintaining stable output.

Segmented auxiliary driving stages let an LDO match load current in real time, cutting excess area and power under drift and temperature shifts.

Periodic path switching and polarity control cancel resistor deviation effects, keeping a bandgap reference voltage stable across temperature.

A comparator and RC delay ramp the regulator reference during startup to curb output overshoot while cutting SoC circuit size and cost.

A feedforward current-mode ripple canceller boosts LDO PSR above 68 dB up to 2 MHz without added quiescent current or silicon area.

Pseudo-random switching re-groups current paths to average transistor mismatch and improve current mirror ratio accuracy.

PTAT and CTAT currents are combined without an operational amplifier to stabilize reference voltage at nanowatt power in standard CMOS.

Dynamic switching and capacitor-based convergence control reduce offset and temperature sensitivity in a bandgap reference circuit.

A MOSFET-based bias-boosting branch raises bias current when battery voltage drops below the regulated level, preserving amplifier performance.