Electric Variable Regulation TRIZ Cases

A digital assist circuit senses ALDO operating state to adapt current and capacitance, improving PSRR and lowering quiescent current.

A core-plus-power LDO layout enables parallel outputs without external capacitors, improving load flexibility while isolating crosstalk.

Inverse impedance and current ratios stabilize output voltage against load and temperature changes without op-amp area or bandwidth penalties.

Band-limited AC detection boosts op-amp current only during load transients, improving response while preserving high-frequency stability.

Luminance statistics and AE targets let the control circuit switch image sensors between HDR and linear modes for better scene adaptation.

Multiple SVR sub-circuits cut quiescent current while enabling robust startup, high-voltage protection, and fast transient response.

A feedback transistor and amplification stage raise drive capability and gain while maintaining temperature-independent reference voltage and current.

Differential feedback balances current across parallel linear regulators, enabling higher low-noise output without overload or thermal drift.

A boosting LDO uses transient current boost and voltage-drop compensation to hold gate-driver output stable without large bypass capacitors.

A diode-resistor regulator topology limits reverse current and bypass discharge to hold output voltage through supply glitches and avoid brownout resets.

Real-time voltage and current sensing lets a memory regulator compensate voltage drops without oversized hardware, cutting power and heat.

An intermediary startup circuit generates stable nA-level bias voltages so bandgap references can start reliably without raising power consumption.

Two PTAT current sources with different emitter area ratios are differentially combined to stabilize current, read tolerance, and oscillator period.

Using one op-amp and current mirror for both references cuts power while keeping voltage and current stable across temperature and supply changes.

Temperature-compensated adaptive cascode biasing preserves current matching and reference voltage accuracy across PVT variation.

Output-voltage monitoring stops LDO injection current during load transitions to prevent overshoot and protect connected loads.

A sensed pre-charge path biases the current mirror common node near steady state, cutting startup delay without added steady-state power.

A capacitively coupled buffer injects ripple cancellation into an LDO pass transistor, cutting supply noise and jitter in SerDes modules.

A bulk voltage generation circuit switches the bypass switch substrate between I/O and core rails to cut leakage and avoid voltage stress.

PTAT and CTAT superposition with second- and third-order bias adjustment reduces reference signal drift across temperature changes.

A current-mode feedforward ripple canceller boosts LDO PSR across wide frequencies while avoiding extra quiescent current and external capacitors.

Selective switches in daisy-chained current mirror stages vary output on a logarithmic scale while avoiding unnecessary power draw.

A PTAT feedback path compensates Zener temperature drift to deliver a stable reference voltage with fewer components and no output buffer.

Uses PTAT and CTAT current balancing in a current mirror to deliver temperature-stable reference current and voltage without op-amp feedback.

Temperature-threshold switching enables low- and high-range compensation currents to keep a voltage reference stable with about ±0.04% accuracy.

Stepwise selection-voltage reduction enables soft-start in bypass mode, smoothing output rise and limiting large current surges.

A hybrid analog-digital LDO supplies average and peak load current separately to limit voltage fluctuation and reduce decoupling capacitor size.

A shifting source voltage that changes with supply level helps the regulator maintain internal voltage drivability across power fluctuations.

Node initialization and fast turn-on/off sub-circuits help an SVR achieve low quiescent current, quick response, and high-voltage protection.

Matched first and second voltage units with K-times amplification suppress reference-voltage drift at low supply voltage with a simpler circuit.

An incremental startup signal lets a bypass voltage regulator raise output gradually, limiting inrush current and preventing circuit damage.

Loop gain is scaled by power gate code ranges to prevent light-load instability and output voltage oscillation in digital regulators.

A power-down control circuit keeps LDO transistor voltages below 0.75 V to limit leakage and dielectric breakdown at higher voltages.

Using MOSFET saturation voltage, this LDO generates sub-bandgap and multiple outputs from one PTAT circuit, reducing SoC area and cost.

Matched transistors, offset control, and feedback let this regulator track supply changes while isolating noise and avoiding threshold mismatch.

Adjusting the gate voltage difference of paired MOSFETs lets this reference voltage circuit fine-tune PTAT and CTAT temperature compensation.

Separate force and sense contacts in a Kelvin poly resistor reference circuit suppress contact-induced 1/f noise, drift, and accuracy loss.

Common-base bipolar transistors and current mirrors cancel offset and nonlinear temperature terms to deliver accurate reference voltage below bandgap supply.

Gm amplifiers charge and discharge large LDO capacitors in sync to speed power-up and power-down without sacrificing PSRR.

A temperature-tracking reference and source follower stabilize LDO output without an op-amp or feedback divider, cutting power and complexity.

Comparator-based current limit loops restrain LDO startup inrush in both LDO and bypass modes, improving reliability with low area overhead.

Stored multi-temperature model parameters and temperature sensing trim bandgap reference voltage despite curvature across -40°C to 150°C.

Dynamic zero-tracking compensation stabilizes an LDO across varying routing impedance while preserving DC accuracy and transient response.

Using only two parasitic PNP transistors and paired current mirrors, this case cuts bandgap reference current draw while preserving voltage precision.

A dynamic R-C network lets an LDO recover output voltage quickly across wide load changes without raising quiescent current or circuit area.

A capacitive feedback loop replaces noisy resistor networks, cutting DC and AC noise in voltage regulators for sensitive circuits.

A bulk-controlled transistor and capacitor scheme speeds voltage regulator response to load changes while limiting output variation and power use.

Input-supply noise is sampled and injected as a cancellation current, improving LDO rejection and reducing clock jitter on regulated rails.