Current/Voltage Measurement TRIZ Cases
- AC Current Loop Zone Status Detection Circuit
An AC signal generator drives a current loop with bi-directional limiters to isolate zones from common mode noise while powering sensors.
- Leakage Detection Circuit for 3D NAND Word Lines
Coupling capacitors transfer word line voltages to a differential comparator that triggers an alarm when leakage exceeds a hysteresis threshold.
- Voltage Traveling-Wave Differential Protection for VSC-HVDC Lines
A voltage traveling-wave differential protection method calculates frequency-dependent line parameters to identify internal faults in VSC-HVDC transmission lines.
- X-Ray Power Supply Self-Diagnostic Mode
Control device switches to diagnostic mode to isolate the X-ray tube, allowing precise measurement of internal power supply faults without external equipment.
- Connector Floating Detection via Complementary Current Phases
A connector probes floating states using alternating current phases to measure voltage thresholds without altering net charge.
- Voltage Detection Apparatus Using Periodic Capacitor Charging
Periodic capacitor charging isolates measurement phases from non-leak discharges, enabling accurate leak fault determination in single-capacitor systems.
- Auxiliary Core Fixing Protrusions for Stator Iron Loss Measurement
Fixing protrusions on the auxiliary core engage stator slots to eliminate gaps that cause vibration, enabling accurate quantitative iron loss measurement.
- Pockels Cell Voltage Measurement with Bias Control
Bias electrode feedback maintains zero internal electric field in the Pockels cell, preventing charge fluctuations that degrade DC voltage measurement accuracy.
- Locating Device Distance Measurement Control Unit
A locating device control unit processes sensor data to output distance information along a movement path.
- Wireless Multi-Scan Wire Identifier for Building Wiring
A wireless multi-scan wire identifier system uses RF transceivers to map building wiring pairs efficiently.
- Alarm Panel Battery Capacity Testing via Internal Monitoring
Automated alarm panel test circuitry monitors battery voltage and current to determine backup capacity without external equipment.
- Scalable Actuator Driver System for Camera Motion Control
A scalable actuator driver system uses primary and secondary drivers to regulate coil current for precise lens movement.
- Battery Cell Voltage Measurement Circuit with Compensation Current
A battery cell voltage measurement circuit uses a current generator to produce compensation currents that cancel resistive drops.
- Single-Phase Overcurrent Cause Identification Using Wavelet Transform
Wavelet transform extracts time-frequency features from three-phase current signals to identify single-phase overcurrent causes.
- Power Conversion Device Sign Diagnosis for Fault Detection
A power conversion device uses a sign diagnostic unit to analyze restart information and detect abnormality signs before system shutdown.