Ac-Ac Conversion TRIZ Cases

Bidirectional switches alternate to step down AC voltage while maintaining a release path for inductive energy accumulated in the reactor.

A converter module uses a switching unit to select individual or summed capacitor voltages across series-connected components.

A matrix converter compensator adjusts output voltage based on potential differences and capacitance between input and output terminals.

A multilevel inverter power cell bypass circuit disconnects failed stages via control switches.

Synchronous common coupling links electrically isolated stacks to enable flexible power routing.

Independent PWM control of three inverter legs eliminates center-tapped transformers while minimizing harmonic distortion under imbalanced loads.

Inverse polarity control cancels common-mode currents from parallel converter strings, reducing electromagnetic radiation without extra shielding.

Dynamic switch configuration reduces disturbance sensitivity by minimizing voltage difference sums.

A power delivery system shifts a voltage waveform window to smooth input current.

A 3-level inverter balances positive and negative DC bus voltages by transferring energy between busses during specific AC line cycle periods.

A matrix direct AC/AC converter uses FPGA-based PWM control to optimize switching events.

Synchronizing the moving average width with carrier signal peaks reduces current detection delay while maintaining measurement accuracy.

A frequency inverter pre-charging circuit uses a choke and semiconductor switch to control charging current intensity.

A power conversion device uses a DC link filter circuit with Y-shaped capacitors to reduce leakage current.

Synchronized switching cancels common mode voltages across dual inverters, reducing insulation stress while enabling higher torque output.

Removing the converter circuit eliminates conduction and switching losses while maintaining voltage conversion capability during power supply fluctuations.

Microprocessor control switches traction elevators to backup power via pulse-width modulation, resolving parallel operation risks.

A cascade converter pre-charges bus capacitors using an inverter circuit and a low-voltage AC power supply.

A secondary branch with a series resistor and capacitor shifts resonant frequency to avoid harmonic amplification while filtering grid-side disturbances.

Switching between phase angle and full cycle firing modes reduces harmonic induction while maintaining precise temperature control.

Replacing mechanical switches with a controlled semiconductor switch in the bypass circuit reduces configuration complexity and switching delays.

Pre-charges the DC bus to match peak AC voltage before closing the circuit breaker, eliminating large inrush currents that stress input components.

A transformerless cycloconverter topology uses six bridge modules to couple three-phase grids while integrating batteries for power continuity.

A power converter uses a single SPDT relay to short-circuit the pre-charging resistor and disconnect the start-up assembly.

Shifting inverter modulation signals reduces common mode voltage to protect motor bearings without adding filter losses.

A controller detects container presence using inner and outer working coils to convert resonance signals into square waves for precise power control.

Extracted timing circuit allows 10 nF capacitor to store energy for reliable TRIAC ignition, reducing component size and production costs.