Power Supply Testing TRIZ Cases

By switching the bypass circuit into conduction during inverter feeding, the controller detects hidden bypass faults before load transfer fails.

Sensor-based monitoring tracks spare part lifespan and storage conditions to prevent expiry, resupply delays, and power system downtime.

Heating elements thermally couple AC/DC power to isolated sensors, eliminating crosstalk and enabling low-uncertainty calibration.

By disconnecting main power and using one steering branch as the load, this case checks backup battery health from voltage drop and discharge behavior.

A resistor-divider sensor replaces transformers and opto-couplers to measure primary-side voltage accurately while meeting UL 60950-1 isolation rules.

Step excitation and transient response analysis estimate fuel cell ECSA loss in real time, avoiding complex CV or imaging workflows.

By tracking only the thermally most stressed power module, this case estimates converter fatigue damage with lower processing load and supports refurbishment.

A closed-loop UPS test setup recirculates power between two UPS units, cutting generator use while maintaining the required test load.

A folded spring-elastic sheet metal clamp keeps reliable bipolar plate contact in dense fuel cell stacks while simplifying assembly.

Small control-current injection at a regulator feedback divider enables linear internal voltage shifts for IC test verification without extra pads.

Voltage oscillation and temperature monitoring switch lighting power controllers before overheating, flicker, or failure disrupt operation.

Residual and predicted flux are compared to time backup switching, limiting transformer inrush while maintaining power to critical loads.

Sensor and alert monitoring tracks spare-part lifespan, location, and storage conditions to trigger timely resupply for power supply systems.

Closed-loop supply network emulation uses frequency-dependent impedance and measured current-voltage feedback to validate component stability.

A resistor-divider sensing circuit replaces transformers and opto-couplers to measure mains voltage accurately across isolation boundaries.

A transparent relay case, residue tray, and terminal cap help detect contact faults, contain fusing debris, and reduce short-circuit risk.

By comparing relay and reference voltages, this circuit detects welded contacts accurately even when capacitors cause photocoupler current.

By matching residual and predicted transformer flux, the controller switches to backup power without inrush spikes or output voltage collapse.

Voltage drop across shorted leads is used to estimate wire resistance and regulate load voltage without sense-wire noise or ground loops.

Detects and validates short electrical transients to predict harmful voltage sags and protect electric machines from damaging current spikes.

Stored power from the test source keeps cooling fans running during load testing, removing the need for an ancillary power supply.

A filter and cascaded regulators separate AC and DC components to measure on-die PSRR accurately across wide frequencies and high loads.

An on-die filter and matched regulators enable accurate PSRR measurement across wide frequencies and high load current without external components.

Adaptive authentication skips checks for low power and verifies transmitters before higher USB power reception to improve safety and speed.

A filter plus two regulators enables accurate on-die PSRR measurement across wide frequencies and high load currents with less test complexity.

Quantized ripple amplitude statistics reveal aging capacitor effects in power supplies early, reducing false alarms and unplanned downtime.

Per-phase self-calibration uses ADC feedback and stored load values to correct trim errors and improve power supply telemetry accuracy.

Quantized ripple amplitude counts expose aging capacitor effects in power supplies before late threshold alarms and unexpected failures.

A DC-link battery tester uses base converters, a switchable booster, and safety switches to deliver flexible high-power testing at lower cost.

Output current and voltage signatures reveal power converter degradation without extra sensors, improving maintenance timing and failure prediction.

Separate breaker sections and local breaker devices prevent erroneous power supply during high-voltage load testing without step-down transformers.

Microcontroller-controlled capacitor switching replaces manual plugging to speed power supply testing and improve accuracy and capacitor life.

Failure probability modeling links health indices to parameter-level contributions, helping prioritize electrical asset maintenance and avoid outages.

Adaptive regression on ON-state switch voltage improves power module life prediction under temperature variation and detects wire breaks.

A bidirectional transformer and switched coil groups let one load tester match high- and low-voltage sources while adjusting power factor.

A wireless conductive structure captures SMPS transients and reconstructs a local PWM signal for accurate duty-cycle and frequency testing.