Current/Voltage Measurement TRIZ Cases

Comparing the reference voltage against a stable band-gap source detects ADC degradation, maintaining measurement accuracy without adding hardware complexity.

A vehicle power supply controller adjusts offset values to maintain accurate current measurements.

A mode-controlled voltage excursion detector adjusts sensitivity during transitions to prevent false signals.

Automated phase identification replaces manual wiring verification, resolving labor-intensive bottlenecks in multiphase electrical distribution systems.

Groove-mounted conductive sensing parts simplify assembly and maintain electrical contact under vibration.

WAMS-based controller analyzes real-time phasor measurements to identify critical modes and generate damping signals for grid-scale storage.

A method locates faults on high-voltage three-phase AC cables by measuring conductor and shield currents at cable terminals.

A flexible display screen adjusts its curvature angle to visually indicate battery charge levels without requiring user interaction.

Adjustable resistance in a loop circuit enables accurate internal resistance measurement across varying voltage scopes.

HVDC interconnection equipment uses superconductor current limiters and controlled switches to isolate faults without communication.

A current protection circuit monitors and amplifies high voltage bus signals using bipolar junction transistors to control load power delivery.

Peer-to-peer modules propagate unique test signals through wiring to identify outlets on common circuits without manual switch flipping.

A semiconductor package measures operating current from each die on a shared monitor pad to prevent malfunctions caused by excessive total current draw.

Segmented housings with a magnetic reed switch resolve the contradiction between compact size and component access for linemen.

A capacitor charges from individual cells to determine voltage via timing, simplifying circuit architecture.

Upper level controller supplies AC voltage to charge submodule capacitors, enabling fault identification without additional devices.

A current measurement circuit uses two independent sub-circuits to measure voltage drops across a sense resistor.

Offset slots with dual sensors cancel external stray magnetic fields, ensuring high accuracy without additional shielding.

A drive circuit detects excessive excitation current using voltage thresholds to limit power supply and prevent component breakdown.

A fault circuit indicator uses a vent pipe transceiver to relay sensor data.

A start-up circuit charges an energy storage device using primary side DC bus voltage to power the control circuit during initial operation.

Active voltage reduction circuit tracks input variations to extend hold time without capacitors.

A comparison circuit architecture uses a ramp signal to evaluate analog and digital inputs simultaneously.

A dedicated indicator device couples to positive and negative DC wire lines, featuring current and voltage sensors that compare measured levels to threshold values.

Automated analysis of power data identifies underperforming current transformers, preventing billing inaccuracies from measurement errors.

An independent power supply keeps the indicator active when main power fails, ensuring continuous operation and reliable detection.

Comparing actual motor current against expected values identifies freewheeling skew failures before mechanical damage occurs.

Real-time signal analysis detects amplitude and symmetry faults in encoder feedback, improving diagnostic reliability.

An optical measurement apparatus uses a Pockels crystal to detect high-frequency inverter pulse voltage without corona discharge interference.

Adjusting the Faraday rotator angle to 22.5° plus alpha suppresses ratio error fluctuations within ±0.5% across -20°C to 80°C operating ranges.

A capacitive sensor forms an electric capacitor with the user's hand to detect phase voltage on a protective ground conductor.

Current monitoring detects elevator brake disengagement through test sequences, resolving reliability issues caused by conventional sensor complexity.

Elongate conductive elements with detector and reference electrodes measure pool water voltage differences to identify stray electrical currents.

Tri-state window comparator analysis resolves low contrast surface detection errors by extracting strong and weak peaks from pixel voltage differences.