Voltage/Current Isolation TRIZ Cases

Power-on degaussing uses the existing coil and controlled alternating current to clear residual magnetism and prevent sensor offset.

Aligned through-holes create a rifted conductor that stabilizes magnetic coupling in current sensors and avoids post-manufacturing calibration.

A transformed low-voltage signal replicates Rogowski coil output to test GIS protection circuits under high-current conditions.

Multiple sensor units and shift-invariant features detect faults, sag, and overload on power lines for proactive maintenance.

A T-coil and staggered-sensitivity detection circuits let ICs sense ESD polarity and level without sacrificing signal integrity.

Integrated sensing and coupling capacitors enable MV/HV voltage sensing, energy harvesting, and communication without external power or cabling.

Embedded capacitive harvesting and voltage division let an MV/HV insulation plug sense line voltage and transmit data without external power or cabling.

An integrated sensing coil detects magnetic flux from vertical current flow, enabling compact current sensing with low loss and reduced distortion.

A protruding electrode bridges socket gaps in T-connectors to prevent flashover and stray capacitance, improving voltage measurement accuracy.

A conductor rift in layered substrate traces creates uniform magnetic coupling above the sensor, improving current accuracy without custom calibration.

Flexible circuit boards with optical LED signaling monitor fuel cell voltages in less space while improving electrical safety and assembly.

A mould-anchored frame centers annular current or voltage sensors in an insulator, improving measurement accuracy in a compact structure.

A delayed analog switch isolates the power stage during Rogowski integrator startup transients, reducing electrical stress and improving relay stability.

Automatic microcontroller calibration corrects Rogowski coil phase shift and gain variation, improving accuracy while reducing manual effort.

Automated one-touch calibration corrects Rogowski coil gain and phase errors, cutting setup time and avoiding technician exposure to hazardous currents.

Busbar recesses concentrate current near surface-mounted magnetic sensors, improving field accuracy while reducing crosstalk from adjacent busbars.

Separating coil and Hall sensing elements while stabilizing the wound coil improves current accuracy and sensitivity across a wide range.

Shared calibration aligns magnetic and resistive current sensing to correct offset, temperature variation, and lifetime drift with less circuit overhead.

Hall effect current sensing and remote clutch control help a winch measure power delivery and prevent mechanical overload.

Measures grid-side voltage across a surge protector, cutting resistor-string cost and PCB spacing while preserving surge tolerance.

Inductive coupling detects whether a conductor is open or closed without current flow, improving safety-compliant state sensing accuracy.

Perpendicular antennas preserve electric field detection accuracy when the wearable is worn vertically, horizontally, or at an angle.

A 3D Hall sensor uses distributed current flow and isolated contacts to measure magnetic vectors inside ICs without added process cost.

Orthogonal coil and open-loop sensor elements cut interference, while a pinboard holder stabilizes the coil and core for more accurate current sensing.

An EMF sensor detects time-varying current in a hot wire without ground or neutral connections, improving test safety and flexibility.

Offset magnetic sensing units and shielding reduce adjacent bus bar interference, improving multi-channel current measurement precision.

Polarized-light sensing captures transient current signals in semiconductor modules without electrical contact, improving isolation and anomaly detection.

An optical sensor added across a low-voltage capacitor lets a mixed-connected CVT capture harmonics and transient overvoltage accurately.

A capacitive divider with one high-impedance sensor measures cable voltage without contact, precise centering, or multiple sensors.

Multiple Hall sensors and pairwise signal processing separate two conductor currents while reducing cross-talk and external magnetic disturbance.

Matched temperature-dependent impedances cancel thermal drift in a voltage divider, improving sensor accuracy without added temperature sensors.

Adaptive electric and magnetic field sensing gives workers directional alerts to energized conductors while reducing false alarms.

A multilevel substrate routes a U-shaped current trace under the Hall die to avoid mold voids, shrink package size, and increase I/O flexibility.

An indented, chamfered bridging branch stabilizes current sensing by reducing sensitivity to PCB conductor layout and thickness.

A stacked primary conductor plate and bond-wire layout boosts current sensing sensitivity while avoiding flip-chip complexity and preserving shielding.

A TGG crystal and fiber-coupled laser enable direct magnetic-field sensing for narrow pulsed currents without EMI-driven noise or calibration.

A coaxial detection and test coil layout improves magnetic field sensitivity while enabling induced-voltage testing for more reliable sensor modules.

An L-shaped conductor places differential magnetic sensor elements at different distances to reject stray fields and improve current measurement precision.

Driving the field mill shutter at an even fraction of resonance separates drive and measurement frequencies, reducing overcoupling and improving accuracy.

Magnetic current sensing identifies failed positive or negative power-source connections so redundant control units can maintain power distribution.

Combining a current transformer and resistive voltage divider in one bushing simplifies installation while delivering 0.3% metering accuracy.

Two field measurements at different conductor distances enable accurate non-contact voltage sensing without precise sensor spacing.

Known-permittivity dielectric layers enable ratiometric voltage sensing without exact sensor-to-conductor distance, improving non-contact measurement reliability.

A gapped circular core concentrates the busbar field while parallel detection supports thinner packaging and stable accuracy under vibration.

An inserted sensing section detects the busbar’s magnetic field, reducing external-field interference and easing assembly while preserving accuracy.