Impedence Measurements TRIZ Cases
- Leakage Current Detection Using DC Equalization Resistors
Pulsed DC equalization limits balancing current while detecting excessive fault current in isolated electrical installations.
- Adaptive Impedance Protection for Distributed Grid Fault Detection
Dynamic impedance set points and downstream current-change checks improve medium-voltage fault detection and reduce false trips.
- Remote Radio Power Supply Feedback for Long Cable Voltage Drop
A programmable power supply offsets long cable resistance and current variation to hold steady voltage at tower-mounted radios and cut power loss.
- Remote Radio Head Power Supply With Cable Loss Compensation
A programmable DC supply offsets tower cable resistance to hold remote radio head voltage steady, cutting power loss and cable weight.
- HRMG Ground Fault Sensing Circuit for High-Voltage DC Shutdown
Sense resistors and transistor switching detect high-voltage DC ground faults early, limit current, and trigger controlled shutdown.
- Supply Lead Resistance Measurement Without Extra Sense Wires
By driving current through one supply lead and comparing both input voltages, this case isolates lead resistance from other loads without extra wiring.
- HRMG Ground Fault Sensing for High-Voltage DC Bus Protection
HRMG resistors and transistor sensing limit DC bus fault current and trigger shutdown to reduce ground fault damage in high-voltage systems.
- Aircraft Circuit Earthing Network for Insulation Fault Continuity
Parallel resistor-capacitor earthing paths limit false insulation alarms from parasitic capacitance while keeping aircraft circuits operating.
- Aircraft Circuit Protection Links for Multi-Fault Insulation Tolerance
Resistor-capacitor earth links help aircraft circuits tolerate multiple insulation faults, avoid false detection, and keep power available.
- Remote Radio Head DC Power Control for Cable Loss Reduction
Programmable DC voltage adjustment offsets long cable drops to keep remote radio heads stable while cutting base station power loss and cable cost.
- Remote Radio Head Power Supply for Long DC Cable Loss Reduction
A programmable DC power supply raises cable voltage to keep remote radio head input stable, cutting tower cable losses and cable cost.
- Power Converter Grid Impedance Estimation With Benign Current Injection
Benign current injection at the PCC enables fast grid impedance estimation from symmetrical voltage and current components without disturbing active power.
- Petersen Coil Parameter Detection from Zero-Voltage Transients
Continuous zero-voltage phasor sampling captures damping and frequency deviation within one grid period for faster Petersen coil control.
- Controlled Earthing for Loop Impedance Measurement in Unearthed Power Systems
Automated controlled earthing enables loop impedance measurement in unearthed power systems without recurring manual grounding by electricians.
- Silver Paste Activation Detection Using Resistor Voltage Thresholds
Automatic voltage sensing across a series resistor replaces manual silver paste activation checks, improving detection reliability and saving labor.
- Impedance Measurement Circuit Using Equivalent-Time Sampling
Equivalent-time sampling with edge samplers and accumulation speeds PDN impedance profiling while preserving timing resolution and accuracy.
- Vehicle Cable Resistance Monitoring Using Real-Time Voltage Drops
A temperature-corrected resistance baseline is compared with real-time cable voltage drops to flag degradation in vehicle wiring.
- Embedded Impedance-Checking Circuit Using Reflected Bus Signals
Reflected voltage signals let embedded circuit checks verify bus impedance on each PCB, replacing lengthy batch-only measurements.