Electric Variable Regulation TRIZ Cases

A unity-gain buffer and RC filtering cut amplifier gain noise in bandgap voltage references while preserving output voltage flexibility.

A current-mirror startup circuit pre-charges a bandgap reference node to limit current spikes, cut settling time, and avoid oscillation.

Opposite temperature-coefficient voltages are summed to stabilize an LDO reference and reduce supply drift in miniaturized ICs.

Dynamic feedback shifts the second pole and loop gain with load current to keep voltage regulators stable across wide load ranges.

Level shifters, power gating, and clamps let a thin-oxide on-chip LDO survive high-voltage domains while limiting gate stress and leakage.

Comparator-driven DLDO assistance adjusts current and bandwidth to stabilize low-dropout operation while preserving PSRR and power efficiency.

A flipped voltage follower in a cascoded bandgap reference lowers node impedance to suppress supply noise and improve PSRR at low voltage.

Active current balancing lets parallel linear regulators share load without balance resistors, cutting power loss and improving voltage accuracy.

Chopping and adaptive startup regulation speed bandgap reference generation while reducing mismatch and avoiding post-startup trimming.

Temperature-dependent current and voltage biasing cancel MOSFET drift to deliver stable resistance in implantable medical circuits with less area.

A parallel dual-LDO with signal coupling cuts undershoot, overshoot, and settle time for stable high-speed voltage regulation.

A single adaptive reference voltage circuit switches current injection by mode to preserve voltage accuracy while cutting microcontroller power use.

Multiple compensation current slopes are injected into a bandgap reference resistor to reduce temperature drift and process-batch variation.

Swapped comparator inputs create hysteresis that cuts LDO ripple and avoids large output loads while staying stable at low supply voltages.

Combining temperature detection and power supply functions in one circuit simplifies chip voltage control and helps reduce chip area.

Sub-threshold MOS conversion with op-amp feedback stabilizes digital isolator supply voltage against input current, temperature, and process shifts.

A bandgap reference is given a controlled temperature coefficient to offset drift in subsequent voltage-to-current stages and stabilize IC outputs.

Switchable MOS transistor control lets a regulator alternate between variable-current measurement mode and constant-current security mode.

Negative PN junction bias lets bandgap references keep temperature stability and accuracy while operating at lower supply voltages.

A control circuit coordinates battery and charger regulators to hold output voltage in off mode while preventing rail cross-coupling.

Adjustable voltage-dividing circuits extend bandgap reference output beyond 1.2 V while avoiding current mirror matching errors.

Darlington-based PTAT and CTAT blocks cut supply headroom without raising noise, keeping bandgap reference voltage stable across temperature.

A voltage booster and adaptive clock switching let an n-type LDO regulate closer to supply voltage while cutting transient settling time.

Adaptive gain tied to enabled current-source branches stabilizes digital voltage regulators at light loads without complex computation.

Measured temperature switches parallel current paths to keep an LDO stable without exceeding typical supply current limits.

Peak current control in an LDO wakeup circuit shortens standby-to-active transitions while limiting output overshoot near breakdown voltage.

A mirrored-current bandgap circuit stabilizes reference voltage at lower supply levels while widening input range and improving PSRR.

Pre-calculated compensator steps and dynamic transfer shaping reduce VMIN sensitivity to dropout while improving DLVR transient response and power use.

Parallel output transistors with gate-potential suppression enable phase compensation using smaller output capacitance while limiting voltage overshoot.

Software-selected reference voltages and DAC current settings set current inversion points for accurate voltage conversion with less circuit area.

A skip timer and processing circuit estimate load current during current-off intervals, enabling consistent light-load reporting.

Matched-threshold PTAT and CTAT transistor stacks generate a stable reference voltage across temperature, reducing analog errors and drift.

A bias accelerator and charge compensator cut wake-up settling time and limit switching disturbance in low-power bias reference circuits.

One regulator uses shared control and level-shifted output stages to deliver multiple voltages with lower power use and cost.

A bandgap-based pre-regulator uses startup, current generation, and multiplier blocks to cut off-mode quiescent current and silicon area.

Periodic and continuous sampling adjusts load current from voltage error and digital state to limit voltage droop without slowing digital circuits.

A PID-based feedback loop tunes input current limiter settings from transient samples to curb peaks, overshoot, and ringing across ATX supplies.

A variable voltage-dividing ratio raises feedback voltage as Vin drops, suppressing regulator overshoot without extra detection circuitry.

Series-stacked MOSFETs with different threshold voltages and trimming reduce bandgap reference drift and improve CMOS temperature accuracy.

Parallel single-, double-, and triple-stack transistors balance current density and power dissipation to keep regulator output stable under dropout variation.

A detection circuit and pass transistor suppress supply-voltage transients in an ED-type reference circuit, keeping output voltage stable.

Fast loop and self-biased inverter circuitry help a capless voltage regulator limit voltage dips and recover quickly without an external capacitor.

A power gate replica and feedback loop stabilize branch current, reduce self-heating, and improve digital load current sensing.

Bypass and power control signals let an LDO switch between normal and low power modes while reducing current draw and maintaining output regulation.

An active discharge circuit and ACFC scheme stabilize a capacitor-less LDO during load transients while limiting inrush and quiescent current.

A cascaded RC and notch-filtered BGR with parallel NMOS blocking keeps intermediate LDO supply voltage stable during power glitches.

Matching resistor and differential-voltage temperature coefficients stabilizes reference current without extra resistors, saving circuit area.

Nonlinear clamped reference signals let an LDO supply selector cut noise and supply hopping while maintaining a lower minimum supply voltage.

Switched parallel paths in a common source amplifier cut non-regulation current in an LDO without adding circuit complexity.

Cascaded RC and switched-capacitor filtering stabilize the BGR and LDO output during supply glitches without large capacitors.

A shared high-accuracy reference resistor corrects multi-channel output current, cutting per-channel resistor cost while keeping current stable.

Sub-threshold FDSOI back-gate feedback compensates bandgap reference curvature, enabling low drift at 0.8 V and below.

Dual low- and high-voltage bandgap circuits are selected and buffered to keep reference accuracy across multiple power domains.

By sensing voltage at both ends of the target circuit, the regulator improves load voltage detection and output control efficiency.

Multiphase switching precharges the LDO reference voltage through dedicated current paths, cutting steady-state delay without destabilizing output.

A segmented LDO power stage and feedback compensation widen input range while stabilizing output, cutting noise, and protecting core transistors.

Using the output voltage to power the adjustment circuit isolates input fluctuations and keeps regulator output stable and accurate.

An asynchronous digital comparator and charge accumulator cut output drift and ripple in low-voltage LDO regulation while reducing power use.

A cascode source follower with drain-extended transistors and a current mirror handles higher input voltage while shutting off overcurrent.

An open-loop sensing branch with adaptive zeroing helps an LDO handle high-frequency voltage droops while staying stable across load and capacitance changes.

Multiple parallel pass-gate paths let this LDO adjust resistance in real time to stabilize output voltage while reducing dropout and leakage.

A correction current derived from base-current mismatch is injected at the emitter to preserve bandgap voltage accuracy and temperature stability.

Bootstrapping and current feedback raise amplifier output current and slew rate while supporting high voltage swings with fewer thermal issues.

A feedforward Wilson current mirror and FVF loop suppress fast line and load transients to keep IC output voltage stable under EMI.

A higher-frequency asynchronous clock lets this digital LDO respond quickly to load-current changes while avoiding continuous power draw.

A pre-settling circuit drives the OP-amp output before full stabilization, cutting reference voltage wake-up time and avoiding extra power draw.

Feedback terminals and reference voltage compensation counter IR drops, preserving voltage headroom and preventing logic faults under varying loads.

A monitor circuit tracks output charge-up time to switch LDO frequency compensation only when needed, preserving stability without a large off-chip capacitor.

A flipped-gate transistor reference circuit blocks substrate noise and compensates leakage to keep voltage accuracy stable at high temperature.

Strategic resistive nodes raise PSRR in an LDO, isolating the reference voltage from power noise to keep output regulation accurate.

A cascoded gm-booster with split amplifiers helps an LDO keep sub-μA quiescent current while improving transient response.

An added depletion MOSFET and resistor network cuts reference-voltage drift while keeping current consumption low in compact circuits.

An op-amp state detecting circuit keeps the output transistor off during undervoltage startup, protecting the load without a separate monitor.

Feedback from summed LDO inrush currents modulates the reference current to stabilize supply voltage and prevent converter faults.

A scaled pass-transistor replica and amplifier cancel supply noise in low-dropout regulators, improving high-frequency PSRR and stability.

A delayed voltage monitor switches gain-stage current between low-power and fast-response modes to stabilize output voltage.

Iterative harvest-voltage adjustment estimates extracted power without stopping energy harvesting, reducing calibration loss.

A current mirror loop and resistor-transistor feedback keep op-amp noise near unity gain while stabilizing bandgap reference voltage.

Dual feedback buffers a p-channel LDO gate to lower output impedance, internalize the dominant pole, and improve stability.

A monolithic GaN regulator circuit combines HEMT voltage control with overheating and overcurrent protection for high-voltage operation.

A gate-buffer capacitor with trimmable capacitance helps an LDO suppress load-step overshoot and undershoot while maintaining fast voltage response.

A predictive trim model uses temperature sensing to correct bandgap reference voltage curvature and keep output closer to target across temperatures.

Comparator-based dropout detection turns off current flow during brownouts and fast transients to prevent regulator overshoot and reset cleanly.

Control-bit current mirror trimming sets line driver output impedance accurately despite process variation and supports lower-voltage transistors.

A reference BJT keeps start-up power applied until the bandgap core fully turns on, preventing deadlock across PVT corners.

A monitor circuit detects dominant pole shifts and switches compensation to keep LDOs stable across load changes without a large off-chip capacitor.

Dynamic bias current switching helps a low-power LDO keep fast activation response while cutting standby power use and preserving voltage stability.

Using an NMOS pass transistor, this LDO improves PSRR and noise rejection while reducing silicon area and supporting wider bandwidth.

Sequential UVLO control rapidly drops the highest rail and ramps down the lowest rail to prevent damaging voltage gaps during hot plugging.

A bipolar core and differential error amplifier hold PTAT current at one stable operating point, cutting area, mismatch, and trim.

PTAT and CTAT transistor currents are balanced through a differential amplifier to generate a stable sub-bandgap reference with less process and temperature drift.