Ac-Dc Conversion TRIZ Cases

A charge pump control circuit adjusts output voltage through pulse width modulation of internal switch groups.

Programmable gate-source clamp voltage and slew rate control prevent electrostatic discharge damage and in-rush currents in USB power delivery systems.

A d-q component transformer generates voltage and current values for fault detection in power systems.

Segmented secondary control units monitor H-bridge switching cells, isolating main unit anomalies to ensure continuous vehicle propulsion and charging safety.

Control unit heats intermediate circuit capacitor via specific current patterns.

A repetitive servomechanism controller regulates inverter current and voltage using discrete sliding mode and feed-forward loops.

Sense emitters measure transistor current without expensive sensors, maintaining accuracy via compensation circuits.

A voltage control inverter synchronizes output with a power system using a single detection circuit and controller logic.

Segmenting the pre-charge circuit into independent modules resolves flat-array maintenance bottlenecks while preserving power density.

Serial data transmission with error-detecting bit sequences reduces cabling complexity while maintaining high switching speeds for parallel inverters.

Interleaved converters with inductive circuits eliminate current fluctuations without adding extra conversion stages.

A decentralized power converter control system uses subunits to transmit summarized voltage data, enabling efficient load distribution across switching modules.

Equipotential connection member links interior cooling conduit to conductive enclosure wall.

Nanocrystalline alloy cores concentrate magnetic flux from 1 amp currents, enabling reliable sensor power without batteries.

Adaptive DC-value estimator isolates double frequency ripple from grid-connected DC/AC converter bus voltage signals.

Replacing low pass filtering with adaptive observers, the system achieves high bandwidth power control while maintaining measurement accuracy.

Dynamic fault current control reduces capacitor size and manufacturing cost while maintaining operational reliability.

Parallel polyphase inverters use opposing electromagnetic coupling coils to cancel common mode flux and maintain differential inductance.

A power converter controller adjusts current limits based on switching element loss to expand the motor operation area.

Power converter filter elements align frequency response minima with switching harmonics to reduce AC voltage components.

A quantum diode transforms alternating current into direct current using electron tunneling through an insulating layer.

Segmented diodes in the bridge minimize battery drain from high-temperature leakage currents while maintaining manufacturing simplicity.

A calculating unit predicts pulse train periods to update command frequencies before edges arrive, resolving synchronization delays at low operating speeds.

A matrix converter controller generates switching patterns using phase voltage correlations to perform direct AC power conversion.

Dual compensation signals dynamically switch based on power factor states to resolve neutral point voltage imbalance in renewable energy applications.

A state observer predicts filter capacitor current using dc-link and capacitor voltages, removing ripple distortion and sensor costs.

A drive circuit supplies charging current to a voltage-controlled switching device via an integrated control loop and external series components.

A DC-DC converter level shifter generates complementary switch control signals with a larger voltage swing to drive display panel transistors.

A power supply circuit protects smoothing capacitors by switching off current paths when voltage exceeds safe thresholds.

Dynamic bypass circuits detect transistor off-states to reduce dead time, improving energy efficiency and switching speed.

A modulation method generates synchronized switching sequences for parallel-connected power converters using a common reference signal.

A controller adjusts inverter phase to equalize power flow across parallel UPS units based on individual battery voltage differences.

Charge pump stages use self-discharge circuitry to prevent cascaded short circuits during voltage multiplication.

Branch current regulation decouples variables to damp circulating currents and adapt to varying submodule counts.

A clamp section with anti-parallel switching elements enables effective reactive power supply despite phase shifts between output voltage and current.

A power converter controller adjusts current-limiting resistance to stabilize capacitor voltage.

A start-up circuit provides initial bias voltage for power adapters using a dedicated control path.

Merging multiple DC sources into one capacitor reduces harmonic distortion while lowering manufacturing cost and inverter size.

An active EMI capacitor discharger circuit monitors AC zero crossings to trigger controlled discharge.

A segmented driver circuit uses dynamic current path switching to control transistor gate voltage levels.

Segmenting the power supply circuit isolates driver paths, reducing parasitic impedance-induced potential differences that cause false switching operations.

Upper arm drive circuit uses a capacitor and reverse current prevention circuit to hold gate voltage without latch circuits.

A control circuit uses an analog-to-digital converter in the high-voltage zone to digitize current signals before optical transmission.

A power supply control circuit sets multiple DC output voltages to determine conductor resistance and adjusts the output voltage for accurate load regulation.

An isolating driver circuit receives after-bridge control signals to manage a before-bridge damper circuit within a rectifier topology.

Segmented pulse-width modulation improves voltage accuracy at low commands while reducing switching losses in the matrix converter.

A power control system injects a sinusoidal signal at a cross-over frequency to calculate gain values for the current controller.

A controller regulates transmitting inductor current via asymmetric duty cycles at constant switching frequency.

Dynamic clock frequency adjustment controls charge pump ramp rates to prevent hot electron injection and read disturbs in non-volatile memory devices.

An 18-pulse diode rectifier converts raw AC power to a DC bus, feeding an inverter to create a clean AC bus.