Three-Or-More-Wire Dc Circuits TRIZ Cases

A controlled charge-discharge backup power circuit keeps load voltage stable during source failure while extending power storage life.

A neutral conductor creates two DC supply paths, doubling bus transmission power without raising voltage or adding more conductors.

A reference-voltage limiter and MOSFET-based supply circuit protect vehicle loads from overvoltage between high- and low-voltage bus networks.

Feedback control redistributes DC power across multiple load lines to account for converter efficiency and cut overall power loss.

Voltage-comparison switching isolates a failed supply and connects backup power automatically, avoiding damage and manual recovery.

Parallel CVCC power units use output-voltage differences to switch between CV and CC modes, sharing load without coordination lines.

Load-based resonance calculation adjusts drive frequency so one isolation transformer can efficiently supply multiple DC outputs.

Dynamic cutoff coordination adapts to added vehicle loads to prevent simultaneous trips and protect electric wires without redesign.

Housing the main battery, sub-battery, and switching unit together cuts harness bulk while keeping the control board powered from either source.

By summing current through adjacent switches, this case detects ground faults more reliably and isolates only the affected power path.

A neutral-bus bipolar PV layout splits DC voltage across two inverters and uses redundant overvoltage detection to protect power devices.

A two-level ECU power architecture replaces relay boxes and fuse-heavy wiring to improve automotive power reliability and reduce copper use.

By throttling wattage before AC-to-DC switching and disabling converter phases, this case improves laptop battery-mode efficiency and battery life.

A voltage-threshold DC-DC converter charges a secondary battery only when the engine battery stays above a setpoint, preventing discharge.

A two-level main and subsidiary control architecture replaces relays and fuse boxes with solid-state branch protection for smarter, lighter automotive power distribution.

Engine battery voltage feedback lets a DC-DC converter charge a secondary battery only after the primary battery stays above a setpoint.

Standardized network-unit states and switching sequences simplify HVDC state control, reducing engineering effort while supporting modular expansion.

Power from trunk stations is routed through a submarine cable branching unit to feed branch lines and repeaters without branch-station PFE.

Maintaining USB PD line levels after power-off enables preconditioned voltage requests and cuts imaging device startup delay.

A series discharge suppression section drops excess battery-input voltage difference to prevent charging leakage with low component count.

Switching electrical consumers between two isolated vehicle power networks maintains supply during faults and improves reusable overcurrent protection.

Dual voltage monitors trigger sub-100 μs disconnection of non-critical loads, preserving critical vehicle functions during undervoltage.

Medium-voltage DC conversion cuts cabling size and footprint while delivering megawatt-scale power closer to dense IT loads.

A step-down converter using MOSFET switching and starter winding inductance limits source current peaks while maintaining engine-starting torque.

Multiple generator windings feed separate DC buses to cut transformer losses and keep marine zones powered during faults.

Selective switching across multiple battery voltage rails enables buck and boost regulation with faster response under variable input and high load.

Dynamic isolators split DC busbar groups by voltage difference to stop ground faults, leakage currents, and common-mode currents.

Dynamic switching across battery voltage rails lets one regulator buck or boost quickly to keep output voltage stable under changing inputs.

Solid-state switching replaces bulky transfer switches to route AC, DC, PV, and battery power with lower loss and uninterrupted data center supply.

A multipoint controller separates power and Ethernet communication to cut custom cabling, reduce noise, and improve ultrasonic welding accuracy.

Different slot resistors create unique voltage intervals, letting plugged-in breakers self-identify position for real-time maintenance and planning.

Controlled ground switching isolates positive or negative wires to detect faults in a backup power circuit without triggering short-circuit current.

Wireless relay control and smart override switches let an RV power center manage DC loads and polarity-reversing accessories safely.

A shared third switch enables sequential load shedding in DC power circuits, cutting contactor size, cost, and arc extinguishing hardware.

Inductive switching combines DC inputs from shaded photovoltaic cell strings to limit shorted-cell losses and improve panel efficiency.

A reversible coupling element isolates a faulty partial vehicle power network, then reconnects it to keep safety-relevant systems available.

A cascaded power path lets server distribution units back up each other, cutting redundant supplies while improving load ratio and conversion efficiency.

Multiple DC buses and load combiners isolate faults while sustaining maximum load current for efficient, redundant data center power.

Unique slot resistors create voltage intervals that let each circuit breaker report its physical position automatically for faster maintenance.

Sequential load switching with state monitoring stabilizes startup of multiple communication facilities and prevents main power source overload.

Using shared operation and transient branches, this case cuts DC feeder interconnection footprint and cost while preserving fault clearance reliability.

A door release circuit detects 12V or 24V input and unlocks only the matching charging compartment to prevent damage during jump starting.

MOSFET switches and relays let one DC/DC converter feed parallel redundant power paths, cutting size and weight while preserving fault tolerance.

Voltage change signals let DC micro-grid loads self-detect control commands, cutting dedicated wiring cost while managing power quality.

A door release circuit senses input voltage and unlocks only the matching 12V or 24V charging terminal to prevent electrical system damage.

Segmented power zones isolate electronic devices to redundant units, ensuring continuous operation during supply failures.

Merging multiple conversion functions into one apparatus reduces system weight while maintaining efficient charging capabilities across varying load demands.

A power circuit uses a control mechanism to selectively enable or disable power delivery at the terminal.

A battery module power source switch circuit autonomously selects internal or external voltage to supply a control circuit.