Electric Power TRIZ Cases

See how back-EMF from a station suction motor wakes a docked cordless cleaner, cutting standby

See how a hybrid battery-utility energy system enables tankless water heater installation in fa

See how a controller manages AC and DC power distribution to a heating element, reducing grid s

See how a modular cart design with panel apertures and adjustable trays enables customizable wo

See how a vacuum cleaner uses one switch to control power and mode transitions, merging on/off

Interchangeable charging segments and removable connectors create customizable port layouts while keeping charging expandable and serviceable.

Series-parallel rectifier switching adapts RF harvesting to weak or strong signals, improving IoT charging speed and sensitivity.

Real-time voltage feedback adjusts switch timing to match different charger power levels, stabilizing charging and preventing damage.

Real-time voltage feedback adjusts PWM switching to stabilize emergency start charging across chargers with different power output.

Real-time voltage feedback varies switch timing to match charger power, stabilizing emergency start battery charging and preventing mismatch damage.

Periodic LoRa-based reporting lets compact battery-powered fixture endpoints monitor operations, extend battery life, and simplify field service.

Charging current is distributed across multiple backup power storages to keep total vehicle power load within acceptable limits.

Voltage-adjusting adapter circuitry lets lithium-ion batteries safely replace heavy lead-acid packs in automatic clay throwers.

PMOS and NMOS switching locks the battery during transport to prevent over-discharge, then unlocks it when external power is connected.

A driving chip and identification circuit detect vaporizer orientation and switch power connections for normal forward or reverse insertion.

Real-time voltage, temperature, and adjusted cycle tracking changes charging settings to limit swelling, thermal events, and battery aging.

A shared precharge resistor charges and discharges the smoothing capacitor to prevent startup overcurrent between parallel power storage devices.

Magnetic coupling keeps rotating robotic accessories aligned so inductive coils can transfer power and data without mechanical fasteners.

Real-time current sensing and USB PD renegotiation rebalance power across multiple ports, preventing overload and wasted power.

A paired portable supply and charging unit keeps devices powered while one battery recharges, cutting off-grid downtime and swap interruptions.

Timed over-allocation lets a multi-port charger boost port power, then rebalance by device demand, temperature, and timeout limits.

Color-coded battery parts and optical sensing improve battery selection, life-cycle tracking, and safe segregation of mixed chemistries.

A thermoelectric assembly harvests fluid-to-seawater temperature differences to charge subsea batteries and maintain power during outages.

Segmented support baffles create separate charging spaces for multiple devices, improving organization, fit, and access during charging.

Initial charging under a first protocol allows protocol matching and cable current checks before switching to a faster second protocol.

Surplus battery power is routed to overloaded monitoring units only above a load threshold, improving normal-operation power use and battery life.

Integrating wireless charging into a solid-state battery module shortens wiring, cuts power loss, and enables smaller wearable-ready mounting.

Three protected current loops and unidirectional circuits block reverse currents and limit charge flow to prevent sparking in HazLoc radio batteries.

A transistor-switched charging interface accepts either terminal polarity, prevents short circuits, and supports charging plus communication.

Power input and output are limited by battery deterioration and operating-state indexes to suppress low-voltage battery wear and extend life.

Multiple MOSFET paths and control logic isolate a shorted circuit and keep the non-faulty load powered from available sources.

A DC powertrain links batteries, motors, and a PDU to integrate grid, generator, and stored energy for efficient mobile crusher operation.

Staggered charging of backup power storage portions limits onboard supply load while keeping all backup units adequately charged.

A latch relay and NMOS circuit automatically correct reversed battery insertion, protecting the load while minimizing battery drain.

Separate controller substrates let vehicle loads be changed more easily while current monitoring shuts off the load path when thresholds are exceeded.

A resistor-based pre-charge path and switched discharge circuit limit startup in-rush current and remove parasitic terminal voltage in power tools.

A low reverse-conduction switch path using a parallel Schottky diode cuts voltage drop and speeds battery activation into fast charge.

An ultra-capacitor supplements battery power during peak motor demand, extending runtime and helping cordless tools avoid shutdowns.

A reconfigurable PMIC switches between thermoelectric input and a rechargeable battery to sustain wireless sensor nodes under low harvested power.

A squib-linked battery switch keeps stored countermeasures unpowered until cartridge connection, improving activation reliability and dispense timing.

Timed USB-C power boost raises charging speed, then reverts to a compliant profile to limit heat and component stress.

A current-threshold voltage foldback scheme cuts startup and load-change spikes while limiting voltage distortion with asymmetrical fold and unfold rates.

Fuse-based cutoff at the converter input and output blocks ground fault current, protecting backup power circuits without extra switches.

A depletion-mode MOSFET current source and P-channel JFET switch discharge high-voltage capacitors quickly without continuous bleed loss.

Combining wired charging with multiple wireless charging circuits raises total charging power while splitting current to limit device heating.

Active IC-based pre-charging replaces resistor-contactor circuits to limit inrush current, speed capacitor charging, and monitor voltage faults.

A control and switch circuit cuts power to non-essential earphone components in the charging box, improving charging efficiency.

An integrated lock-and-lever battery switch enables authorized on/off control without vehicle modifications, reducing discharge and theft.

Real-time voltage feedback adjusts switch duty cycles so emergency start charging stays stable across different charger power levels.

A rail-mounted magnetic connector lets bicycle auxiliary units detach easily while maintaining aligned, reliable charging from a shared battery.

Real-time voltage sensing adjusts switch duty cycles to match charger power deviations, keeping emergency start charging stable and efficient.

Real-time voltage feedback and PWM switching let an emergency start charger adapt to mismatched charger power while keeping charging stable.

A sampled-current control loop and resistor branch enable quick, stable battery discharge without costly grid energy feedback.

A gated pull-down path rapidly discharges the charging tube gate in BMS faults while a higher resistor value keeps standby power low.

Suspicious EVs are identified from alert data and excluded from dispatch planning to keep facility backup power reliable under cyberattack.

Real-time voltage feedback adjusts PWM switching in an emergency start charging circuit to handle charger deviations and keep charging stable and efficient.

Identifier-based charging and locking keeps battery modules near the dock, blocks unauthorized use, and triggers alerts for unknown units.

Detects charger type and switches voltage mode to avoid heating with non-adaptive chargers while preserving efficient charging.

Bridges wired audio sources to wireless earphones while also powering and charging the earphone case through one adapter.

Received power feedback lets the transmitter adjust wireless charging profiles in real time to improve efficiency under changing conditions.

Mode switching limits circulating current when parallel BMS units have different voltages or capacities, preventing overcharge and damage.

Stores braking energy in the backup battery and conditions grid power to keep elevators and emergency lighting running through outages and disturbances.

Quick-swap battery modules built into detachable limbs keep pumps and controls powered, cutting simulator downtime during medical training.

Adjusting modulation depth to received power strength prevents signal distortion, keeps charging communication stable, and lowers fire risk.

Real-time adapter temperature and capability data let the host enable boost power without causing supply shortfalls or overheating.

A voltage-converting adapter enables battery packs to charge from external power and run external devices with simpler, more portable hardware.

A three-layer finite-state control scheme uses virtual unit and sensor objects to manage hybrid DC power systems on standard microcontrollers.

Blowers and housing vents cool an in-vehicle wireless charger, reducing heat buildup while preserving charging convenience.

Automatic switching between AC input and a charged battery keeps DC outlets powered continuously while reducing adapter clutter across devices.

Multiple battery-powered inverters use phase-angle control in open delta or wye layouts to deliver portable AC power without harmful battery ripple currents.

Two-stage differential and common-mode protection cuts input surge current, improves metering accuracy, and reduces grid interference.

A mobile device, energy storage pack, and intelligent power supply relay control instructions to remotely start and adjust outdoor electrical apparatus.

A brown-out circuit switches backup power to only essential lights, cutting energy use and enabling a smaller emergency battery.

Beacon-based phase prediction improves directional wireless power delivery to moving clients despite multipath interference, blockage, and noise.

A sensing circuit disconnects an electrochemical cell from a load when voltage drops to a predetermined threshold.