Ac-Dc Conversion TRIZ Cases

A clock control circuit boosts the voltage level of a first clock signal to generate a second clock signal with elevated voltage.

Inductors greater than 10 nH in parallel switching arms equalize current distribution, preventing switch destruction from imbalance during voltage conversion.

A charge pump unit generates high voltage using specific control signals to maintain stable output levels.

A power inverter switching circuit uses series transistors and inverse-parallel diodes to enable selective frequency operation.

Replacing silicon with GaN HEMs eliminates parallel cell complexity, enabling single-device operation at 7 A peak current and 100 MHz bandwidth.

Dual control inputs and independent energy storage enable redundant triggering of a pyrotechnic actuator, preventing uncontrolled failures in power converters.

Current-dependent switching patterns adjust duty cycles across load ranges to minimize conduction losses while reducing semiconductor costs.

A DC-AC converter uses a transmission capacitor to move time-varying DC power between circuits.

A voltage change detection circuit monitors power switch current using the DC-line capacitor.

Adjustable resistance circuit modulates charge pump output voltage via error amplifier feedback, resolving accuracy limitations under varying load conditions.

Synchronizing switch closing times across parallel inverter units prevents short-circuit charge currents that damage components with different capacitances.

Replacing mechanical switches with semiconductor switching and isolated transformers eliminates arcing hazards while maintaining continuous DC power delivery.

A DC-AC inverter module generates auxiliary AC power using a sinusoidal filter connected to an auxiliary service transformer.

Pinned gate electrodes create inversion layers to block high voltages while maintaining low on-resistance.

A charge pump circuit adjusts clock signal frequency based on load current to maintain high power efficiency across varying operating conditions.

Recovering electric charge from bootstrapping nodes after charge sharing prevents discharge loss, enhancing current efficiency and reducing power consumption.

Auxiliary switches limit voltage stress to half the input level, reducing switching losses and electromagnetic compatibility issues in single-phase inverters.

Center-aligned pulse-width modulation patterns in multi-level converters balance switching states to regulate AC terminal voltages.

A voltage regulator uses a detection circuit and charge pump to control an input transistor based on supply voltage levels.

A four-pole neutral-point clamped converter constrains switch states to produce zero common mode voltage.

Piezoelectric actuator destroys semiconductor crystal structure to enable safe current flow, eliminating pyrotechnic drive safety hazards.

Signal lines break when mechanical switches close, enabling low-cost monitoring that prevents short-circuit damage in high-voltage converters.

A DC-to-AC conversion apparatus reduces switch count and output inductors using series-connected input capacitors.

Independent phase switching frequency control manages inverter semiconductor thermal dynamics.

Segmented switching limits voltage stress on components, reducing grid-tie inverter cost and complexity.

An AC/DC converter arrangement uses a smoothing capacitor to generate current oscillation for isolating relay operation.

Control circuit adjusts switching device constants using one temperature sensor to simplify semiconductor module design.

A grid converter controller modifies current references using high-pass filtered output voltage signals to stabilize power flow.

A booster circuit uses a microcomputer to gradually increase target voltage during initial states, stabilizing output.

Segmenting the converter into independently charged modules generates finely stepped voltages without requiring excessive component counts.

Active vector pulse width modulation sequences eliminate zero vectors to minimize common mode voltages and prevent motor bearing damage.

Control circuits monitor chip temperatures using detection diodes to determine case overheating states.

A regulator uses nonlinear compensation to limit proportional gain and boost integral gain during transitions.

A three-phase UPS control method uses a harmonic frequency alternating current as a 0-axis reference to generate a modulated wave.

A bypassed converter cell discharges its capacitor to measure voltage drop time for online degradation assessment.

Segmented IGBT structures reduce turn-off trailing time by extracting excess holes from the drift region through dedicated emission zones.

Segmenting a full bridge into two half-bridges reduces switching loss and leakage current, resolving the trade-off between bipolar and unipolar modes.

A charge pumping circuit uses phase-shifted clock signals to sequentially operate high-voltage pumps in different regions.

Auxiliary current branch diverts main circuit flow via active switching bridge to regulate voltage and current.

Parallel three-level circuit units reduce bus capacitor groups and device voltage stress while maintaining efficient multi-level output performance.

Control circuits dynamically switch MOSFETs in a PoE rectifier to prevent detection errors during high-power supply stages.

Ring-configured AC-to-AC modular multilevel converter reduces device complexity by balancing DC capacitor voltages through circulating currents.

A multilevel DC-to-AC converter uses six phase modules and a transformer to generate nine output voltage levels for power conversion.

A snubber circuit reduces current and voltage variations during switching operations using reactors and condensers.

Alternating transistor operation in LCD inverters reduces chip heat accumulation, preventing burnout while maintaining load driving capability.

A multilevel inverter uses shared cut-off circuits to control switching elements, reducing wire count and circuit size.

A voltage converter circuit uses a bridge rectifier, transistors, and a Zener diode to provide stable output voltage.

Directional charge and discharge paths suppress LC resonance between parallel switch terminals, preventing malfunctions without reducing switching rates.

Lookup tables reduce computational burden while maintaining capacitor voltage balance in medium voltage power conversion systems.