Ac-Dc Conversion Without Reversal TRIZ Cases

Adaptive inverter frequency and duty control with SiC switching improves heating of non-magnetic cookware while cutting switching losses.

Sequential transistor switching after diode conduction cuts fault-mode losses, EMI, and transistor stress during rapid power converter transitions.

Scheduling-driven DC/DC switching control suppresses radio unit power disturbances from antenna muting and carrier aggregation without filter capacitors.

Two parallel saturable reactors use both PMG half-cycles to improve DC voltage regulation and reduce PMG size requirements.

Diode-based intermediate circuit coupling limits compensating currents and overloading while enabling safe energy recovery between drive converters.

Mechanically synchronized switching and NTC precharge paths limit transformer and capacitor inrush current in a three-phase rectifier.

Machine-learning load prediction adjusts active converter phases ahead of rapid current changes to improve efficiency without destabilizing operation.

A shielding plate linked to the rectifying unit cuts stray capacitance in compact high-voltage generators and supports stable wide-voltage operation.

A rectifier, Zener signal stage, and transistor switching power a microcontroller from the LED current path without added converters or inductors.

Overlapping cross-connections in segmented wireless charging coils cancel induced currents, cutting circulating loss and improving energy transfer.

Current-limited, voltage-clamped capacitor drive shortens optocoupler ON time to cut zero-crossing detector power use without losing accuracy.

Noncentrosymmetric crystals rectify high-frequency fields into DC without diode thresholds, enabling tunable terahertz energy harvesting.

Detecting condenser surge current lets the converter shut off switching elements early, while a varistor clamps voltage to prevent damage and fire.

A dual-branch resonant converter processes power only once, improving high-power charging efficiency while meeting regulatory constraints.

Capacitor-backed dual-channel MPPT captures sub-threshold turbine output and releases it when grid-ready power can be supplied.

A passive precharge path equalizes switch voltage before turn-on, cutting common-mode current spikes and protecting power converter switches.

Load-status-based voltage switching cuts cable loss and improves 48 V base station power efficiency while maintaining stable supply.

By switching two phases at a time, the controller derives real branch impedance in star or delta loads without a neutral reference.

Active buck-boost control limits startup and brownout inrush current without NTC thermistor losses, heat rise, or AC mains dips.

A current-triggered disconnection unit removes the IGBT gate capacitor during faults to stop LC oscillation, limit overvoltage, and protect the switch.

Transformer short-circuit impedance limits fault current so DC branch interrupters can trip first without added current-limiting circuits.

When command deviation or change rate rises, the control device boosts switching frequency to stabilize power conversion while limiting extra loss.

Compares converter output voltages to detect combiner wiring errors without combiner-point sensing, reducing retrofit cost and complexity.

Direct feedback between generator and rectifier controllers reduces AC/DC stage delay, enabling faster fault correction and improved power quality.

A controllable capacitive circuit lets the converter adapt to load impedance changes while maintaining output regulation and zero-voltage switching.

Bidirectional power sharing across modular charging ports balances DC link voltage, improving SST charging efficiency and reducing cost.

A configurable outdoor connector switches between PoE and 48 V power without internal relays, preserving isolation and weather-proof sealing.

Configurable input and output interfaces let one converter adapt to AC, DC, wind, and photovoltaic power while reducing hardware variety and maintenance.

A voltage multiplier assist helps wide-input PFC circuits cut RMS current, copper loss, and inductor loss while maintaining output voltage.

Bidirectional DC converters create isolated multi-voltage DC buses from one solid-state transformer while balancing voltage and three-phase power.

Alternating phase-shift sequences suppress double-frequency power fluctuation while preserving ZVS and balanced sharing in cascaded LLC power modules.

By adding an inverter to a detachable vehicle battery, external electrical equipment can be powered without a separate energy storage unit.

Coupled resonant inductors let parallel N-phase resonant circuits share current more evenly, limiting overload, overheating, and component damage.

Linear control of the low-frequency node voltage cuts zero-crossing leakage current, surge noise, and shock risk in a totem-pole PFC converter.

An auxiliary voltage feedback path enables earlier control response, preventing capacitor overvoltage without costly high-voltage parts.

Adjusting secondary winding phase shifts equalizes transformer output voltages, balancing rectifier currents without added reactors.

Duty-cycle, phase-shift, and frequency control balance stacked capacitor voltages in a high-power resonant converter across a wide range.

Overlapping cross-connections in segmented planar coils cancel induced currents, cutting circulating loss and improving wireless charging efficiency.

Adaptive on-time control keeps SMPS switching above the audio range at light loads while limiting peak current and stabilizing output voltage.

A diode, sampling current, and timing scheme discharges the X-capacitor efficiently while avoiding false power-off detection under input distortion.

Spring contact bands and interference fits secure DC pins in a rotating rectifier ring while removing weak braze joints and BeCu hazards.

Bypassing zero-voltage MMC cells reroutes current around switching elements, cutting conduction loss while preserving high withstand voltage.

A split AC-DC and PFC rectifier converts two phases separately from the third to cut transistor current stress and lower rectifier cost.

Nested shield electrodes and a rotary target assembly raise x-ray energy toward 750 keV while limiting vacuum breakdown and target overheating.

A four-switch polarity circuit lets one electrophoresis power supply apply forward or reverse high voltage for more flexible capillary analysis.

Valley-Fill rectification and phase-shifted RF amplification raise AC-to-RF efficiency, improve power factor, and limit MOSFET heating.

Controller-set DC and AC voltage references keep bipole HVDC currents balanced and sustain downstream power when the return conduit fails.

Only a small share of AC power is converted and added back through a differential path, cutting regulator size, cost, and energy loss.

A signal convergence unit lets multiple transformer rectifier controls share optical fiber links, cutting isolation cost and wiring complexity.

Switched discharge resistors split fault current in a chain-link AC-DC converter, limiting voltage rise and reducing energy storage size.