Ac-Dc Conversion Without Reversal TRIZ Cases

A power supply device dynamically adjusts voltage levels to increase transmission capacity without raising current.

Power control modules convert stored DC energy into AC power, reducing transmission losses and enabling continuous delivery during system malfunctions.

Segmenting fuel cell stacks into modular DC/DC converter branches reduces harmful ripple currents below 5% while maintaining required voltage output.

Integrated switching circuits replace diode bridges and power factor converters, reducing cumulative energy loss across multiple conversion stages.

A power supply system adjusts output voltage using terminal and modulated currents to compensate for line loss.

A field oriented controller uses a sliding mode observer to estimate rotor position without hardware sensors.

Charges a capacitor using primary side inductor current to supply control circuitry voltage.

A power conversion apparatus uses series input and parallel output connections across multiple units to reduce switching device stress.

Dynamic switching between complementary chopper circuits enables charge and discharge across varying bus voltages, improving energy use efficiency.

Interleaved converter windings enhance magnetic flux to improve voltage conversion efficiency, eliminating autotransformers and reducing device complexity.

A synchronous rectifying circuit uses a controller to drive power transistors based on transformer winding signals.

A power supply device adjusts target voltage based on operation mode to maintain accurate output.

Interleaved pulses from two parallel transformer rectifier units reduce current distortion and increase power factor without adding excessive windings.

Removing the AC-to-DC converter reduces system volume and improves energy transformation efficiency.

Self-commutated converters minimize reactive power exchange and stabilize frequency in weak high-voltage AC networks without separate energy sources.

Parallel power converters operate in optimal ranges to overcome efficiency drops at low and high loads.

Controller switches power converter modes based on capacitor charge to manage current flow.

A compensation coupling circuit adjusts threshold voltage levels across capacitor strings to boost power conversion efficiency in battery-less RF apparatus.

Secondary side controller cross-references current sensing resistor data with transformer energy transmission signals to identify output faults.

Open-loop resonant DC/DC converter control reduces sensing complexity while maintaining constant average output voltage.

Asymmetric duty cycle protection signal inhibits control circuit switching when feedback indicates excessive power output, preventing component overheating.

Discharging the intermediate circuit capacitor via existing switches prevents component damage while avoiding chopper circuits.

Merges power supply and clock generator functions using shared AC input, reducing device size and manufacturing costs.

A DC isolated-parallel uninterruptible power supply system uses bidirectional converters and chokes to equalize power demand among modules.

An interconnection apparatus reconfigures a rectifier circuit to adapt to varying supply networks, reducing electrical resistance and switch costs.

A hybrid converter links voltage source and line commutated converters to transform wind power into direct current.

A single-chip main control circuit manages voltage and current feedback in an AC-AC conversion system.

An asymmetric power supply design segments conversion pathways to resolve the contradiction between high reliability and low device complexity.

Detects secondary winding voltage vibrations to control the synchronously rectifying element without external current transformers.

Multi-phase power conversion unit segments generator phases into independent single-phase units to achieve linear current control.

A PWM rectifier switches modulation schemes based on current amplitude to minimize semiconductor switching operations.

Control unit generates burst pulse signals to synchronize sinusoidal current, resolving detection complexity and cost trade-offs.

A main converter uses a pre-charge unit and grid side converters to accumulate energy in DC links before grid connection.

Dynamic Input Voltage Compensator adjusts voltage divider resistance to stabilize dimming interface power across wide AC input ranges.

A reconfigurable DC output filter circuit dynamically switches between capacitive and inductive configurations to reshape rectifier current waveforms.

Segmented power conversion stages eliminate switching losses by isolating line frequency power factor correction from high frequency DC-DC conversion.

A bidirectional bridge rectifier circuit integrates transient voltage suppression diodes to protect digital input modules from electrical surges.

Transformer-based detection calculates and corrects AC voltage to reduce power duty errors, shortening first print out time in image forming equipment.

Segmenting the AC stage protects active components from DC faults, minimizing size and cost while maintaining efficient power transmission.

Segmented power supplies isolate voltage fluctuations from beam strikes, preventing arcing and maintaining stable operation at high beam currents.

A damage predicting device monitors gate insulating layer degradation through a resistor and control circuitry.

A switch control circuit synchronizes power switch turn-on with the resonance start point to maintain soft-switching conditions.

A controller activates a second DC discharge circuit upon AC input loss to safely reduce residual voltage without causing damage.

Periodic voltage monitoring detects AC signal removal to trigger safe capacitor discharge, eliminating standby power consumption from resistors.

A power factor correction system detects AC voltage zero crossings to generate precise sinusoidal reference signals.

Digital controller adjusts current limits via DC rail voltage sensing, enabling safe operation across varying load demands without fixed settings.

A power converting apparatus samples DC voltage values at specific intervals to calculate an estimation value for output voltage correction.

Current-based control in a two-wire dimmer resolves impedance mismatch issues, enabling precise intensity adjustment without minimum load requirements.

Smart bypass diode bridge rectifiers prevent PoE port deadlocks and reduce power dissipation by 96.28% using ideal diode topology.

A power converter circuit uses a charge pump driven by load current to smooth waveforms and reduce ripple in the rectified supply.