Ac-Dc Conversion Without Reversal TRIZ Cases

An AC-DC converter uses an impedance-measuring circuit to adjust power output, compensating for voltage drops in varying cable lengths.

A converter control system calculates circulating current setpoints to balance submodule energy.

A DC-to-DC converter detects load conditions to switch between normal and power-save modes.

Analog ICM controller maps voltage to current without sensors.

A power module provides simultaneous alternating-current and direct-current output using a bidirectional inverter-charger.

A power supply device generates drive pulse signals with varying widths to reduce input current harmonics.

A rectifier circuit uses a bypass path to divert inrush current away from switching devices.

Segmenting the pre-charging circuit into independent units with auxiliary power sources reduces device size and cost while enabling hot-plugging.

A bridge circuit with capacitor means achieves electrical resonance with a winding to convert reactive power into active energy.

A bus bar current detector measures aggregate load current to control parallel power converter switching without inter-unit communication.

A ten-phase auto transformer rectifier unit converts three-phase AC input into bipolar DC output using phase-shifted windings.

A rectifier circuit uses a voltage detection unit to regulate current flow from a constant source.

A control method determines an optimum phase-shift angle between converter chopping frequencies to minimize magnetic flux in the common mode filter.

A synchronous rectification apparatus uses a secondary-side winding to generate control signals for transistors.

A primary side PFC driver circuit uses dual-frequency switching to deliver constant current pulses to an LED load.

Secondary side control switches adjust transformer turns ratios to expand output voltage adaptability without degrading efficiency or power density.

A modified Sepic converter uses inductively coupled windings to reduce voltage stress on the switch and coupling capacitor.

Merging two interphase inductances into one shared unit reduces converter mass and volume for aeronautical applications.

A capacitive power supply uses a triac to bypass the surge limiting resistor during steady state operation.

A timing circuit limits active discharge resistor operation to a fixed interval, reducing power rating and cooling needs for electric vehicle inverters.

A single-stage interleaved soft switching converter integrates power factor correction and DC-DC conversion using film capacitors.

A resistive element limits inrush current peaks during startup while thyristors bypass the resistor for efficient voltage-doubling operation.

A power conversion device manages regenerative current through adaptive commutation modes and a clamp circuit with shorting switches.

Segmenting high-voltage switches into series modules reduces switching loss and device volume.

A split boost choke with a common-cathode diode configuration balances currents across parallel power rails.

A magnetic induction power supply device switches unit coils to a rectification unit during initial operation.

A power factor improvement circuit uses series switching and rectifying elements with an inductor to reduce diode loss.

A power conversion apparatus uses parasitic capacitance to enable zero-voltage switching.

Segmented switching units handle high-voltage inputs using low-withstand-voltage semiconductors, reducing switching losses and device costs.

Placing a reactor near ground potential reduces insulation voltage requirements, enabling a compact design with improved earthquake resistance.

A power factor correction circuit uses wave skipping to enhance measurement accuracy at light loads.

A silicon carbide epitaxial wafer uses two-step growth with intermediate etching to form steps inside triangular defects.

A bridgeless power factor correction converter uses segmented rectifier circuits with differentiated diode recovery speeds to optimize energy transfer.

Capacitive networks and comparators measure voltage transitions to adaptively adjust dead time, reducing switching losses and preventing current reversals.

An inverter uses an AC auxiliary power supply to convert grid current into DC for the bus capacitor, enabling system startup without sunlight.

Isolation transformer with out-of-phase secondary windings and phase-shifted rectifiers reduce total harmonic distortion in high voltage uninterruptible power supplies.

Voltage detection triggers synchronized shutdown of the auxiliary boost circuit with the DC-DC converter, eliminating overvoltage risks during power loss.

Power control circuitry manages energy distribution between audio video doorbells and signaling devices using dynamic shunting mechanisms.

Adaptive power distribution system directs AC input among parallel rectifier cells, maintaining high conversion efficiency across varying power levels.

An integrated reactor merges magnetic fluxes in the same direction, suppressing losses and current ripples while maintaining high power factor operation.

A power supply device uses a preliminary charging circuit to charge an output smoothing capacitor before main switching operation begins.

An interleaved quasi-resonant power supply reduces inter-modulation noise by coordinating master and slave switching devices.

Segmenting the power supply into a boosting stage and conversion stage enables reliable meter operation at voltages below 96 Vrms.

Segmented DC/DC converters with MPPT regulate output voltage stability across varying sunlight conditions.

A full-bridge electric power conversion circuit uses switches and reactors to enable bidirectional power transmission between multiple systems.