Ac-Dc Conversion Without Reversal TRIZ Cases

A balancing control element selects switching cells in a multilevel converter based on phase arm current magnitude and direction.

A boost converter uses a silicon-carbide field-effect transistor and a multilevel insulated gate bipolar transistor network for selective capacitor charging.

An adapter integrates a testing switch and detecting circuit to monitor output signals for immediate fault state identification.

Threshold-controlled boost converters maintain stable DC bus voltage while reducing bulk capacitance requirements for compact adapters.

A power supply system adjusts abnormality detection duration based on load current to minimize relay switching.

A synchronous rectifying circuit uses a pulse-signal generation circuit to control power transistors via isolation devices.

A control method generates a compensating current to maintain sinusoidal input flow in AC-DC power converters.

A current-triggered synchronous rectifier uses MOSFETs and a drain-current monitor to switch states based on thresholds.

A control system manages parallel single-phase power regulators to maintain balanced phase currents across a three-phase AC source.

Dynamic voltage sweeping identifies the workable voltage range of a motherboard, resolving the trade-off between testing accuracy and device complexity.

A transconductor system uses an intermediate amplifier to set equal transconductance across amplifiers.

A causal circuit generates off signals to control power transistors in synchronous rectifiers for resonant switching power converters.

A voltage multiplication component amplifies induced AC energy to maintain operational load voltage despite reduced magnetic coupling.

Segmented control reduces algorithm complexity while minimizing high-frequency distortion in multilevel converter output waveforms.

Low-inductance pulse transformers transmit edge signals in a double-ended isolated DC-DC converter, reducing size and weight while preventing short circuits.

A phase detection circuit identifies live and neutral wires using voltage signal timing to enable correct parallel system connections.

Segmented secondary windings with optimized tap points reduce parasitic capacitance, eliminating dummy loads and preventing voltage spikes in CT scanners.

A capacitive power transfer system uses dedicated reference potential electrodes to stabilize electrical potentials between transmission and reception devices.

A power factor correction device uses a multiplier to generate an updated reference current signal from compensating voltage and current signals.

A series compensation device connected to a diode rectifier dynamically adjusts the output voltage to maintain stability under varying load conditions.

Synchronizing converter and inverter carriers removes input current distortions caused by zero voltage vectors and dead time.

Capacitor on transformer secondary winding balances positive and negative voltage peaks, eliminating feedback control complexity in static eliminators.

Fishbone topology divides the circuit into unit cells that absorb broadband signals, reducing return losses and harmonic injection while recovering energy.

A configurable power factor correction circuit switches between buck and boost modes to adapt electronic ballast operation.

A control circuit synchronizes discharging of internal capacitive elements with the AC signal phase to manage energy storage safely.

Integrated mode selection circuits allow a single PWM control IC to adapt to various dimmer types, reducing manufacturing costs and storage requirements.

Segmenting the diode function with a fast recovery diode and rectifying diode reduces reverse recovery loss while keeping inductor size small.

A DC power supply device adjusts capacitor charging frequency to maintain stable output voltage under varying load conditions.

Series-connected voltage multiplying rectifier units divide stress across isolation transformers, improving energy efficiency and insulation properties.

Analog master-slave control architecture achieves high phase accuracy while reducing circuit complexity by eliminating digital processing delays.

A boost circuit adjusts drive pulse widths to manage switching elements and prevent backflow currents in power converting apparatuses.

An enabling circuit detects load presence and switches an AC to DC converter between active and standby states, reducing power consumption during idle periods.

A controlling module generates off-time control signals based on input and output voltages to manage power conversion.

Asymmetric primary windings in a transformer increase input current conduction angle, resolving low power factor and high harmonic currents.

Reverse current suppressor turns off freewheel switch during shutdown to prevent voltage spikes and reverse current damage.

A power factor correction system rejects DC current using average current monitoring and duty cycle control.

A dual-boost power factor correction converter uses a single current sensor to drive active rectifier and boost stage transistors.

A MOSFET rectifier circuit uses a Zener diode to limit forward voltage across the body diode, reducing stored charge and reverse recovery time.

A switching power source device modulates pulse width during PWM cycles to smooth current changes and reduce harmonic noise generation.

An inter-phase transformer restrains circulating current between parallel converters, preserving efficiency in high-power wind energy generator systems.

A power supplying apparatus uses a voltage selecting module to detect identification signals and send specific DC voltages.

A two-stage AC-DC voltage converter uses an isolated first stage for power factor correction and a non-isolated second stage for regulation.

Segmented primary windings allow lower-rated components to handle power, reducing controller costs while maintaining high capacity.

A magnetic amplifier regulates source and load voltages using rectified feedback signals applied to control windings.

Segmenting transformer primary windings allows transistors to handle lower voltage while phase-shifted waveforms cancel ripple without storage capacitors.

A bridgeless power factor correction circuit uses triangular current mode control to detect and turn off switching components during negative current flow.

A control unit adjusts input carrier phase based on harmonic current trends to minimize output harmonics in parallel inverters.

A multi-phase transformer uses specific primary, secondary, and third winding configurations to magnetically couple input voltage and produce higher output levels.

A revolving speed variable voltage power supply adjusts glow plug output based on engine rotation.

A power supply control circuit detects AC plug disconnection using a comparator and timer to trigger capacitor discharge.