Current/Voltage Measurement TRIZ Cases

See how a heat pump controller receives total current signals from remote terminals, compares t

See how AI-based multi-parameter analysis predicts floor types in vacuum cleaners to adjust suc

See how a washing machine detects waterproof items by comparing motor driving current before an

See how variable voltage sources enable independent thermoelectric cooler control to prevent de

See how protection circuitry with Hall Effect sensing and ground fault detection prevents elect

See how voltage sensors and type-specific thresholds detect low-battery conditions in hand hygi

See how pressure and motor-load sensors with SVM classification enable a vacuum cleaner to dete

See how analyzing nozzle motor starting current profiles enables automatic type distinction and

See how a PCB-integrated moisture detection circuit stops the suction motor when liquid is dete

See how periodic switching between temperature and corrosion sensors optimizes energy usage in

See how a control unit monitors DC supply voltages against reference values to detect SMPS comp

See how voltage-change monitoring replaces vibration sensors to detect dispenser actuation even

See how a clamp-on cord sensor detects power tool current to activate dust collection without s

See how voltage sensors and dispenser-specific thresholds detect low battery conditions before

See how protection circuitry with Hall Effect sensors and ground fault detection prevents dange

See how a toilet seat load sensor uses register mode to store individual weight distribution pa

See how voltage sensors and type-specific thresholds detect low battery conditions in hand hygi

Voltage sensing in battery-powered dispensers detects low charge, estimates remaining dispenses, and flags battery replacement events.

By estimating inverter protection before overcurrent shutdown, the controller cuts compressor load and extends stable heat source operation.

Predictive inverter protection control reduces compressor load before overcurrent trips, extending stable heating or cooling output.

An integrated MPPT optimizer tracks each assembly’s power directly in analog circuitry, cutting controller complexity, cost, and power loss.

A shared-core inductor combines two power windings and a sensing winding to suppress current ripple while cutting inverter size and parts count.

Multi-band edge sensing and ML prediction cut grid fault response time while enabling rapid mitigation and remote equipment management.

A temperature circuit offsets FET coefficient mismatch to keep current sensing accurate and improve power converter efficiency.

Using the busbar as the sensing element cuts shunt losses while opposite-coefficient compensation keeps overcurrent detection accurate.

Opposite-direction sense cable routing cancels current-loop EMI, improving battery EIS accuracy for cell health and defect diagnosis.

Dual BMS monitoring combines overlapping power averages with modeled MOSFET junction temperature to catch fast overcurrent before switch failure.

Precomputed electrode reference profiles are matched to charge-discharge voltage data to diagnose battery defects and degradation with low processing load.

Impedance sensing and low-pass filters detect cable faults before full power delivery, enabling rapid shutdown to limit shock and fire risk.

A conductive polymer between battery cell leads raises resistance as gas-driven swelling grows, enabling BMS warnings and shutdown before accidents.

Threshold-based AC supply monitoring detects voltage dips through galvanic isolation to prevent failures, fuse trips, and manual restarts.

OCV and SOC deviation measured after full charge helps detect internal battery cell shorts faster when voltage drop differences are minimal.

A clamping bar and self-aligning wired fingers replace glue on bipolar plates, enabling reliable full-stack voltage monitoring and easy disassembly.

A comparator and Y-capacitor sampling circuit detects contactor open or closed states without isolated power supplies, op-amps, or MCU software.

A control capacitor and discharge circuit detect hidden battery voltage drops despite buffer capacitors, enabling restart protection in machine tools.

Voltage comparison across battery pack electrodes and link lines detects external shorts before high current can damage relays or resistors.

Comparator-based overshoot detection opens a transistor as a diode brake to limit load-drop voltage spikes and enable smaller capacitors.

Moving-average deviation analysis filters voltage noise to detect abnormal battery cells early, even under micro-disconnection conditions.

Electrode profile maps match distorted capacity-voltage curves to diagnose degradation in multi-active-material battery cells more accurately.

Resistor-based voltage sensing identifies which RF cable is not engaged across spaced PCBs, reducing inspection effort and power waste.

Telemetry from grid monitoring devices is used to estimate actual network configuration and flag mismatches with documented grid records.

Differential current sensing adjusts modulator on-time and off-time each cycle to catch fast inductor overcurrent and improve power-stage efficiency.

Adaptive voltage tracking and clamping keep the charge pump current limit stable across wide Vin/Vout conditions, protecting internal devices.

Injected test current and node voltage sensing expose high-resistance or open battery strings before they distort cell measurement and charge balance.

Short- and long-term cell-voltage averages help detect battery abnormalities despite temperature, current, and SOH variation.

Virtual grounding resistance links converter states with AC-DC fault behavior to improve LCC-HVDC internal and external fault discrimination.

A two-stage frequency check with power adjustment separates normal load switching from true inverter islanding and improves protection accuracy.

Overpotential-corrected battery profiles enable fast state diagnosis at higher C-rates without the low-rate testing normally needed for accuracy.

Multi-parameter arcing data combines current, voltage, pressure, and temperature to assess gas circuit breaker nozzle materials faster and more accurately.

Electrode profile mapping improves diagnosis of multi-active-material battery cells by matching capacity-voltage curves to degradation states.

Sequential relay control and pack-level current checks let each BMS pinpoint stuck-closed relays in parallel battery packs.

Precomputed lookup-table compensation corrects fastening-position voltage errors so more battery cells stay in safety diagnosis with accurate resistance data.

Corrects battery SOH estimates with SOC change region, change amount, and temperature weighting to avoid full cycling and sensor offset errors.

A wrapped sense wire and feedback control separate inrush from true fault currents, enabling fast isolation of human-contact and leakage hazards.

Temperature-compensated Rdson sensing uses variable resistor ratios and auto-zeroing to improve DC/DC converter current accuracy with low loss.

Voltage, current, and temperature signatures authenticate EV battery cells without exposing credentials, reducing copied replacement cell risks.

A pulse transformer enables isolated gate drive and fault feedback between primary and secondary circuits while reducing component count.

Sequential relay closure and current-threshold checks pinpoint stuck-closed relays across parallel battery packs for reliable fault isolation.

Injected current and node voltage sensing reveal battery connection string faults early, preserving accurate cell voltage measurement and charge balance.

A generator and shunt create low-voltage, high-current busway tests that expose bad joints through heat and voltage-drop anomalies.

Cross-positioned pole sensors reconstruct phase currents from magnetic fields to pinpoint grid faults faster and cut maintenance time.

Discrete overcurrent detection and voltage regulation protect an active wheel speed sensor for durable, low-cost vehicle operation.

Parallel low-pass branches with different cut-off frequencies improve protected-zone fault detection and internal versus external fault discrimination.

OCV profile analysis and electrode profile adjustment estimate battery SOH accurately without slow low-rate charge-discharge testing.

Dual resistor voltage sampling in an H-bridge buck-boost circuit cuts inductor current sensing cost and latency while supporting fast overcurrent protection.

Bulky analog transformers are replaced by integrated Rogowski coil and capacitive divider sensing for compact, self-monitoring switchgear measurement.

Selective high-resolution monitoring and digital twin models cut battery-cell data transfer while preserving accurate aging-state estimation.

IED-based analysis identifies whether voltage unbalance in three-phase loads comes from the source or the load, reducing losses and motor stress.

LED flasher circuits indicate hazardous AC or DC voltage from 40-3000 V in electrical panels without opening the enclosure.

Periodic max-min cell voltage comparison exposes abnormal battery cells that stay within normal ranges, improving diagnosis reliability.

Voltage-monitored resistors trigger local fire-extinguishing fluid discharge to contain battery thermal runaway and stop heat spread.

Offset-corrected accumulated voltage analysis flags abnormal battery cell groups when only group-level sensing is available.

A C/L-band filter before the output photodiode detects first pump laser failure in an EDFA without added blind-stage hardware.

Applying container pressure before assembly reveals abnormal cell self-discharge through voltage checks, helping avoid battery waste and recalls.

High-stimulation battery diagnosis is sped up by removing overpotential noise and correcting full-cell estimates with a machine learning model.

Layer-resolved voltage and current measurement reveals thickness-wise reaction non-uniformity in high-loading electrodes to improve fast charging.

Differential voltage data at two charge rates estimates negative electrode safety and adjusts charging to limit lithium plating.

A feedback loop equalizes drain voltage in a scaled sensing transistor, improving GaN current-sense linearity and accuracy across temperature shifts.

A native-NMOS reference path and replica PMOS stabilize overcurrent thresholds against temperature and process drift while cutting power use.

Periodic comparison of pack voltage extremes reveals abnormal battery cells that stay within normal voltage ranges, without circuit changes.

Serial resistor lines, current sources, and parallel-switched capacitors perform analog MAC operations with lower power use and better reliability.

An MCU-controlled NTC limiter built into the power cord curbs PSU inrush surges, preventing relay failure and PDU damage.

Voltage and temperature sensing let a faulted circuit indicator detect internal power-source degradation before it causes unreliable fault detection.

Multiple overload protection devices compare local ground signals over a network to locate grounded wiring fast without broad system shutdowns.

Multi-band filtering and half-wave energy thresholds improve arc fault identification accuracy under random arc behavior and load noise.

A rectified, superimposed current signal extends sensor range to detect nominal and peak AC currents without false trips.

An S-notched conductor and differential sensor cut heat-sink-induced eddy currents to keep EV power module current sensing accurate.

Fast analog comparators and programmable counters catch brief power rail over-voltage and under-voltage events before SoC damage occurs.

Built-in and external current and temperature sensing detects sensor faults early and protects power semiconductors and wire harnesses from overheating.

A differential tracker generates a 90° lagged grid voltage to suppress imbalance in PWM rectifiers while tolerating frequency drift and reducing memory use.

A calibrated threshold and dual-comparator scheme improves zero-current detection accuracy under process, voltage, and temperature variations.

Zone-based voltage drop monitoring detects vehicle power circuit failures and enables safe driving, stopping, or parking by fault location.

Current-based HUD monitoring detects display panel faults quickly and shuts off the light source without cameras or image analysis.

Downstream relay-contact voltage monitoring detects wear or deformation early, helping maintain stable power supply and timely replacement.

Open-circuit voltage after relaxation enables accurate in-vehicle battery SOH estimation without battery removal or direct capacity testing.

A clamping circuit on the PWM line enables simple, low-cost LED fault detection without complex communication interfaces.

Counteracting drive forces let multicarrier rails test current and sensor behavior early, detecting faults without impacting carriers.

Voltage and temperature deviations are weighted to predict battery cell damage and trigger module disconnection before damage worsens.

Dynamic subspace thresholding improves ESPRIT synchrophasor estimation under harmonics and out-of-band interference while reducing real-time compute load.

A di/dt signal lowers the current threshold in real time, enabling faster overcurrent interruption before rising current damages the system.

A control circuit detects low-efficiency voltage regulator states and shifts loads across matching rails to improve power efficiency and battery life.

Constant-voltage current monitoring detects internal battery short circuits faster than voltage-drop inspection, improving manufacturing throughput.

A switchable parallel divider extends voltage detection from 5V to 48V while preserving low-voltage charging and avoiding false overvoltage trips.

Peak detection and logic-based timing replace photocouplers to cut standby power, reduce PCB area, and improve AC zero-cross accuracy.

Output-current monitoring identifies open-circuit inverter switch faults and applies duty-ratio and phase-shift compensation to keep operation running.

Dynamic SOC-based voltage thresholds improve abnormal battery deviation diagnosis when time-varying characteristics or replaced modules distort fixed limits.

Dynamic voltage thresholds trigger earlier abnormal steering control when backup power fails, preserving steer-by-wire function.

When a BMS link fails, historical SOC, charge, and temperature data help substitute a similar battery state to keep storage operation running.

Compact modules fit standard AC panels to switch and monitor individual circuits, enabling flexible load shedding without rewiring.

A cathode-anode single-particle model tracks lithium diffusion imbalance to detect salt precipitation before short-circuit risk rises.

A mirrored overcurrent detect circuit isolates a minute short by disabling the second display supply while keeping the boost output active.

Current and gradient thresholds at converter poles detect short circuits quickly, protecting flying capacitor cells without per-cell sensors.

Current and di/dt sensing at converter poles detects short and ground faults in flying capacitor converters while reducing sensor count.

Separate sensing and local control loops correct source-path voltage drops without test interruption while detecting miswired sense leads.

Differential sensing of transformer input and output currents enables real-time overload alerts and remote fault isolation in looped distribution systems.

Time-accumulated overcurrent detection protects power converters from sustained overload below trip thresholds, reducing overheating and damage.

Maximum voltage change identifies high-risk cells, allowing current limits that keep battery cells within their operating voltage range.

A resistor-free MOS latch samples supply voltage to catch nanosecond power glitches with lower area and static power in security chips.

Digitized demand-current samples and trigger timestamps replace sense resistors, enabling real-time power converter analysis and tuning.

Captures differential voltage across a resistor during short high-side sensing windows by isolating common-mode voltage with low bias current.

A variable reference with switchable active hysteresis improves low-voltage analog signal detection in noisy industrial environments.