Electric Variable Regulation TRIZ Cases

A programmable second-order LPF helps LDOs cancel SMPS-induced resonance and keep phase margin stable across varying capacitive loads.

A feedback loop blends PTAT and CTAT signals to keep a low-voltage reference stable under load, noise, and temperature variation.

Pre-charge current control enables a bandgap reference circuit to start quickly without overshoot across PVT conditions while lowering power and latency.

A sampled-voltage pull-up current suppresses reference overshoot in fast PA startup, helping 5G circuits meet timing and stability needs.

Segment-level gate monitoring converts each FET gate voltage to current, selects the highest segment current, and detects linear-region risk.

Separate supply paths let the error amplifier and driver operate stably at low input voltage while cutting current use in large-load LDOs.

Output-voltage detection delays foldback limiting and undershoot suppression so an LDO can start normally under load without protection maloperation.

Multiple voltage-temperature slope domains and max-voltage selection keep supply voltage within functional limits across wide temperatures.

Matched transistors and resistor ratios replace the op-amp to generate accurate reference current with low temperature drift, less area, and lower power.

A composite and intrinsic transistor stack cuts headroom voltage while preserving high output impedance in scaled current mirrors.

Sliced pole tracking adjusts gain and pole frequency across load currents to keep voltage regulators stable, fast, and efficient.

Threshold-canceling transistor pairs generate a more stable 1/2 VDD bias, reducing temperature-driven voltage error to 0-0.4%.

Pseudo-random switching re-groups current-path components to average mismatch errors and keep output current ratios precise.

A CTAT bipolar transistor network offsets Zener temperature drift while preserving long-term reference stability at lower supply voltage.

A fast current limiting loop bypasses the error amplifier in an LDO to curb in-rush current, stabilize transients, and protect against shorts.

A P-type voltage tracking circuit biases the deep well dynamically to suppress NMOS over-voltage leakage and prevent overheating.

A hybrid analog-digital LDO uses dual rails and feedback loops to balance strong PSRR with higher conversion efficiency.

A passive compensation network counters parasitic capacitance and supply ripple to stabilize regulator output voltage and improve PSR.

A tracking, margin, and startup circuit sets only the needed load voltage, cutting quiescent current, area, and startup delay.

Biasing a supply transistor in subthreshold mode filters supply noise over a wide frequency range while reducing RC filter area and cost.

A selection unit feeds detection voltage before amplifier response to curb startup voltage spikes and protect shunt regulator circuitry.

Current mirroring boosts PTAT current in a bandgap reference circuit to cut output noise and temperature drift without larger transistors.

An NMOS pass-transistor LDO improves PSRR and supply-noise rejection while reducing regulator area in integrated circuits.

A second transistor clamps the pass transistor voltage, stabilizing linear power output under wide input-voltage variation.

Selective switching between full-power and low-power regulators cuts junction heat, power use, and chip area across multiple supply modes.

Negative feedback equalizes resistor voltage drops to cut current mismatch and keep a bandgap reference stable below 1.2 V.

A dynamic op-amp feedback path uses transistors and discrete components to speed load-rise and load-shed response without hurting power factor.

A secondary high-bandwidth loop suppresses startup and load-step overshoot, while an open-loop sub-regulator cuts standby power.

A buffer amplifier and matched bipolar paths suppress noise and temperature drift while keeping the reference voltage circuit compact and precise.

A feedback GaN reference circuit uses positive-temperature-coefficient impedance to hold output voltage stable against temperature and supply changes.

A mode selection circuit controls LDO output transistor current to limit overshoot and undershoot with small integrated capacitance.

A mode-switched LDO compensation circuit precharges and delivers initial correction voltage to limit overshoot, undershoot, and standby instability.

A power chip adjusts driving voltage from detected input voltage so the driver chip keeps operating normally despite IR drop and low supply levels.

Edge-triggered pull-up and pull-down resistor control helps digital LDOs achieve fast transient response, low power, and wide load range.

A dynamic RC network and adaptive biasing help an LDO cut voltage undershoot while keeping quiescent current and circuit area low.

Charge sharing between parasitic capacitances speeds bias-voltage settling, cutting start-up delay and power waste in low-power circuits.

A dual-capacitor output stage isolates stored charge in low-power mode to cut inrush current and charge wastage during wake-up.

A nested feedback mirroring circuit compensates comparator operating current to suppress banding noise and preserve image quality.

A two-capacitor output stage stores charge during low-power mode to cut inrush current and reduce charge waste on power restoration.

A leakage detector and temperature-based compensation pulses maintain internal voltage during power-down, preventing abnormal active-mode operation.

Averaging voltages across multiple connection nodes lets an LDO regulator stabilize load supply, cutting voltage-drop mismatch, noise, and power use.

Dual compensation circuits vary node resistance with load current to shift poles and keep LDO phase margin stable without ESR dependence.

A two-phase start-up bandgap with lowpass filtering cuts noise and quiescent current while keeping regulator response fast.

Dynamic Miller capacitance shifts the dominant pole in a capacitor-less LDO to maintain PSRR and ripple suppression across load changes.

A reset-based mode switching circuit reactivates soft start to limit surge current, reducing EMI and component stress during voltage changes.

Separate voltage and current control loops stabilize parallel linear regulators, preventing oscillation and balancing load current.

A correlated PTAT and core bandgap circuit flattens voltage drift over temperature, cutting calibration effort and production test complexity.

A two-phase start-up bandgap with lowpass filtering cuts regulator start-up time, quiescent current, and noise in portable electronics.

An ORING controller links its PG pin to an eFuse EN pin to shut off a redundant regulator quickly when output overvoltage is detected.

A resistor-divider feedback path lets an LDO use a low-voltage compensation capacitor to add a stabilizing zero while reducing chip area.