Current/Voltage Measurement TRIZ Cases
- Secondary Battery Leakage Current Calculation for Low Voltage Defect Classification
A calculation method determines secondary battery leakage current using aging process discharge voltage profiles and open circuit voltages.
- Optical Fiber Current Transformer Temperature Compensation
Pre-calibrated temperature-current compensation curves correct magneto-optical coefficient drift in optical fiber current transformers.
- Differential Voltmeter Voltage Measurement Method
A differential voltmeter measures two voltages sequentially using a known potential reference and switching unit.
- Battery Pack Current Estimation via Cell Voltage and Internal Resistance
Compensates for current sensor errors by calculating pack current from cell voltages and internal resistance, ensuring accurate state of charge assessment.
- Processor-Based Connection Interface Failure Detection
A processor outputs inspection signals to identify connection states without extra hardware.
- Six-Port Circuit Frequency Measurement with Interference Detection
A six-port circuit uses a delay line and arithmetic unit to measure signal frequency in two operating modes.
- Test System Power Management via Dynamic Current Thresholds
A test system manages power consumption by dynamically adjusting unit operations based on real-time current thresholds.
- Audible Current Monitoring Device with Microcontroller Threshold Alerting
A microcontroller-based current meter stores readings and activates alerting devices when changes exceed preset thresholds.
- Voltage Converter Control Circuit for Reverse Voltage Protection
A voltage status comparator generates a bias voltage to control a driving switch in a power converter circuit.
- Voltage Detector Dual Impedance Discrimination
A voltage detector uses dual impedance measurement to distinguish real from induced line voltages.
- FPGA Derivative Processing for Transient Event Characterization
A high-speed data acquisition device converts sampled signals to first derivative representations on an FPGA to extract local minima and maxima.
- Power Supply Fault Detection via Input Current Moving Average
A power supply controller compares instantaneous input current against a moving average to identify fault conditions.
- RFID Tag for Non-Contact Wire Current and Environmental Monitoring
Clips-on RFID tags replace bulky Hall sensors by using electromagnetic induction to measure wire current alongside temperature and humidity simultaneously.
- Contactor Control Unit for Energy-Efficient Closing
A control unit detects contactor closure via coil current feedback to switch from pull-in to hold current.
- Magnetic Detection Device AC Noise Cancellation Timer Reset
A magnetic detection device uses timer circuits to reset based on output changes, removing alternating current magnetic field noise from the signal path.
- Voltage Detection for Image Heating Adaptability
A voltage detection device determines AC power supply levels to switch heater connections.
- Arc Fault Detection Unit Using Voltage Current Thresholds
An arc fault detection unit monitors voltage and current changes to identify electrical faults in low-voltage circuits.
- Dynamic Sampling Frequency Current Measurement System
A current measurement system adjusts sampling frequency to reduce aliasing and time-lag.
- Magnetic Field Current Measurement with Interference Cancellation
Multiple magnetic field sensors feed a processor that applies a Taylor series expansion to cancel external interference and determine current amplitude.
- Battery Evaluation Device Using Charge-Discharge Efficiency Clustering
A battery evaluation device clusters charge-discharge efficiency intervals to generate characteristic information for real-time monitoring.
- Energization Control Device Zero-Cross Timing Correction
A control portion calculates correction values from detection signal periods to adjust switching timing in energization devices.
- Surface Potential Sensor Using Electret Electrode and Piezoresistive Bridge
Electret electrode on diaphragm detects surface potential via piezoresistive bridge circuit, eliminating mechanical choppers to reduce sensor size.
- Current Correction Circuit for Power Semiconductor Devices
A current correction circuit adjusts sense terminal potential using temperature data to improve detection accuracy.
- Battery Voltage Determinator with Error Signal Output
Voltage determinator outputs error signal to separate corrector, resolving inaccuracy from physical separation.
- Power Supply Assembly Voltage Converter for Semiconductor Testing
A power supply assembly uses a voltage converter to maintain constant power consumption across varying output levels.
- Terminal Apparatus Power Segmentation for Data Storage Reliability
A terminal apparatus controller stops power to the communication interface during outages.
- Current Sensor Calibration Trigger Circuit
Hardware-based current sensor controller monitors temperature and voltage signals to initiate precise trimming operations without software intervention.