Ac-Dc Conversion TRIZ Cases

Dynamic gate drive control reduces voltage overshoot during fast switching by adjusting the negative bias voltage rail.

A rotating magnet power generation input device uses magnetic attraction to drive a coil.

A passive bootstrapped charge pump transfers charge between capacitors to boost the gate voltage of an NMOS pass transistor in low dropout regulators.

Voltage balancing units transfer charge between input capacitors to prevent switching element damage caused by voltage imbalances in LLC resonant converters.

An H-bridge circuit with a transverse inductance branch adjusts current flow via a controllable voltage source.

A voltage source converter adjusts module count to maintain optimal utilization levels.

Pulse width modulation at high switching frequencies controls microwave emissions, resolving power and control contradictions.

A ripple-compensation unit generates command values from AC side voltage to adjust DC node levels in electrical energy conversion devices.

A voltage conversion device uses a boost circuit to raise input voltage above a reference level for stable switch control.

A wind power generation apparatus uses controlled duty cycles to intermittently short-circuit an armature winding, boosting voltage and maintaining constant output for general-purpose inverters.

A half bridge inverter circuit incorporates a reactive filter to attenuate high-frequency switching waveforms while delivering sinusoidal AC voltage signals.

Centralized controller adjusts voltage phase angle to balance current flow across parallel power converters.

Segmenting pumping cells with wide and narrow clocks reduces voltage ripples and peak current density in embedded dynamic random-access memory.

An intermediary signal path bypasses delay elements in the protection circuit to maintain dead time consistency and reduce waveform distortion.

A low-power power supply converts existing current input to higher voltage through a switched capacitor network coupled in series.

Active rectifier circuit manages energy transfer through controlled switching intervals and threshold currents.

A multilevel converter protection circuit detects inner switching device failures and adjusts adjacent gate signals to prevent chain reaction faults.

A bridgeless rectifier detects phase differences between transmission and reception resonance circuits to control switching time points.

A UPS control unit compares instantaneous internal voltage and current values against pre-stored reference waveforms to detect performance failure.

A dual mode charge pump circuit restricts current flow during transitions using a constant current source.

Excitation circuit uses dual DC voltages and switching control to drive the coil, reducing heat generation while maintaining measurement stability.

A synthetic diode rectifier circuit uses a comparator and sense resistor to control field effect transistors for conduction.

An H5 inverter controller uses dynamic PWM switching to handle grid outages, reducing leakage current while stabilizing emergency SPS power supply.

Segmented H-bridge modules reduce power switch count and harmonic distortion in uninterruptible power supplies.

A rectifying circuit uses transconductance modulation to convert input voltage into current without relying on diode threshold voltages.

Segmenting three-level circuits reduces switch element count and manufacturing cost while maintaining sinusoidal current injection quality.

Modules autonomously adjust switching duty cycles based on local measurements, reducing voltage ripple without requiring large energy stores.

Adjustable switch resistance in a charge pump stabilizes output voltage by reducing incoming current noise.

Synchronized frequency control eliminates interference that causes color irregularities in image forming devices.

Segmented boosting circuits and adaptive control ensure continuous retrogression and regeneration operations despite single circuit faults.

A three-phase power drive control system processes positive, negative, and zero sequence error signals using parallel harmonic repetitive controllers.

Segmented capacitor arrays and hysteretic feedback maintain regulation while reducing silicon area and tone noise.

A gain adjustor modifies feedback control gain based on supplied voltage and current to optimize power conversion.

Overvoltage protection circuit monitors DC power rail voltage to disable the controller during high-voltage surges.

A power module integrates high-side and low-side programmable circuits into a single daisy chain write port system.

A power conversion device uses a wave propagation medium and synchronized gates to accumulate reflected voltage pulses for efficient energy transfer.

Passive balancing windings on return legs counteract uneven magnetic flux distribution to resolve heating uniformity in three-phase power electronics.

Dynamic dead time reduction improves energy transfer efficiency while preventing short circuits and overheating through closed-loop thermal monitoring.

Alternating switch timing distributes thermal stress evenly, preventing premature failure from uneven loading in parallel power semiconductor circuits.

A power supply uses a voltage-multiplying unit to charge a storage capacitor above normal levels before input failure.

A semiconductor drive device uses a protection cancellation circuit to generate fixed-period signals for clear anomaly detection.

A solid-state transformer design replaces magnetic components with switching circuits to achieve significant size and weight reduction.

A drive circuit restricts gate voltage to a reference level during charging.

A networked control interface manages power supply parameters across distributed security devices.

Spaced fastening points allow the resin connection member to expand with temperature changes, reducing stress on seal interfaces.

Dual discharge circuits ensure reliable capacitor discharge when internal voltage is lost, preventing energy waste.

A power management device uses a change-over switch to connect or disconnect a loading circuit based on detected output voltage levels.