Ac-Dc Conversion Without Reversal TRIZ Cases

A bidirectional power converter adjusts AC current phase to cancel shunt-induced advances from filter capacitors, improving the power factor.

Split secondary windings form a regular hexagon to produce 24-pulse DC voltage, reducing harmonic distortion for avionics applications.

Control circuitry restricts capacitor charge duration to prevent instantaneous current spikes and ensure stable output.

An inductor forms a series resonant circuit with capacitors to amplify output voltage while reducing conduction noise in high-voltage systems.

Circulating current correction circuit adjusts active and reactive references to regulate neutral point voltage in three-level converters.

Artificial inertia in wind farm converters stabilizes grid frequency and replaces telecommunication systems with DC link signals.

A control circuit disconnects non-essential components using a trigger signal and energy storage to lower standby power consumption.

Unified control loops balance stacked power modules, resolving input voltage sharing challenges while maintaining precise DC output regulation.

A solid-state circuit interrupter uses microprocessor waveform analysis to detect ground and arc faults.

A power switch module uses a flip-flop circuit to maintain logic states during power interruptions for electronic devices.

A rectifier circuit with a control-based protection mechanism for wireless power receivers.

A bidirectional converter transfers power between an AC source and a parallel balancing bus to support series DC transmission.

A transition mode power factor correction controller uses an up-down counter to automatically adjust offset voltage.

A power supply device adjusts current limiter settings and charge accumulation capacitance based on detected input frequency variations.

Adaptive synchronous switching in resonant converters minimizes energy dissipation by dynamically adjusting timing to preserve switching element integrity.

Asymmetrical five-level converter structure reduces switching unit count to resolve complexity and reliability trade-offs in high-power applications.

A voltage detector processes alternating current input to generate isolation signals.

Digital control drives bridge leg switches to merge rectification and power factor correction, reducing energy losses across processing stages.

Replacing electromagnetic relays with solid-state FETs and diodes reduces mechanical wear during frequent solar-to-mains transitions.

A high-voltage power supply apparatus controls drive signal duty to prevent switching element breakdown during load variations.

A power controller jitters the maximum switching frequency to spread radiation energy across a broader spectrum.

An electronic regulation module adjusts pulse duty cycles to prevent low-consumption bulb illumination while maintaining reliable device operation.

Shifted phase PWM control manages switching elements to maintain constant DC capacitor voltage and high input power factor.

A secondary controlled AC-DC converter uses an independent primary-side oscillator to generate gate-drive signals for efficient low frequency operation.

Segmented power cells in a regenerative cascaded H-bridge power supply reduce semiconductor device count and cost while maintaining three-phase AC output.

Helically cascaded unit cells implement a reactor within multilevel converters, eliminating bulky separate components while suppressing circulating currents.

A DC power supply unit uses adaptive rectifier control to manage AC voltage conversion and reduce harmonic currents in air conditioner applications.

A power converter circuit uses a dedicated rectifying path to charge the electrolytic capacitor independently of the main relay.

Active voltage equalization control enables lower rated switching elements, reducing conduction losses while maintaining reliability.

A current detecting circuit compares drain voltages of normally-off switching elements to generate a detection signal.

An overvoltage relay in a VFD pre-charge circuit cuts current flow to protect the DC link capacitor bank.

Capacitive power conversion circuit scales charging current using switching capacitors to enable rapid battery replenishment.

A coordinated control method adjusts active power references to maintain DC voltage balance across series-connected valve groups.

A power converter control device adjusts a compensation rate to manage DC link ripple and drive a motor efficiently.

Adjusts converter valve switching based on detected neutral current asymmetries to eliminate transformer saturation and vibration.

A power converter control section corrects ac side current sensor amplitude and offset errors using dc side current measurements.

A power supply circuit uses a shunt and energy storage to maintain constant LED current.

A voltage regulator filter unit purifies the comparison signal to generate a stable control voltage.

A power conversion device maintains constant load voltage using bidirectional switching elements and a drive control unit.

A synchronous rectifier circuit uses a switching control circuit to self-adjust operating points of its switches.

Controlling unit adjusts switching pulse timing using detected current and inductance correction amounts to manage power conversion operations.

A single-stage power conditioning unit uses pulse-width modulation to regulate direct current output voltage from an alternating current source.

A switch controller detects zero cross-points to generate a reference signal synchronized with dimmed input voltage, resolving phase misalignment.

A control circuit adjusts switch duty cycles using input current and output voltage sensing to generate sinusoidal average input currents.

Synchronizing shunt switch openings with AC current zero crossings limits switching frequency in capacitive dropper power supplies.

An AC-DC switching power converter modifies switching frequency in response to load changes, reducing capacitive and core losses during light load conditions.

Modular converter platforms merge collection and conversion functions, eliminating separate collector infrastructure and reducing subsea cabling complexity.

A self-oscillating half-bridge circuit generates high-frequency AC signals to power loads without external controllers.

A grid-connected inverter controller calculates D-axis and Q-axis voltage variations to adjust output current references.

A modular multilevel converter adjusts its DC voltage command value based on detected capacitor voltage variations to maintain stable operation.