Efficient Power Electronics Conversion TRIZ Cases

Segmented inductor coils eliminate multiplexer switches, reducing silicon area and power loss while enabling independent duty-cycle adjustment.

A power converter switches modulation modes to manage high currents during faults.

Mounting a linear regulator on a heat sink suppresses temperature increase while generating stable power source voltage from high input AC.

A voltage regulator adjusts bypass resistance based on duty cycle differences to generate regulated output voltage.

A control circuit adjusts average impedance of a synchronous rectifier conduction path to manage inductor discharge timing.

A synchronous converter adjusts LED current by varying the second switch on-time duration to enable precise dimming control.

A piezoelectric resonator connects across switch terminals to eliminate even-order harmonics in electrical converters.

A multiphase converting controller adjusts conduction time periods to balance workload across phases and reduce switch loss.

A switched-mode power supply uses a transformer relayed signal to transmit control information across isolation barriers.

A current loop controller measures actual switching periods to generate stable control signals for boost converters.

A flyback converter adjusts switch on-time via a phase-lock-loop module to correct distorted input current waveforms and improve power factor.

A duty cycle controller modulates a charge pump to maintain low channel resistance in an nMOS load switch.

A synchronous rectification device uses an isolation coupling element to transmit control signals between primary and secondary sides.

A hysteretic controller manages dual inductors on a transformer secondary side to regulate output voltage and current.

Silicon carbide transistors enable high-frequency hard-switching to exceed 1 kW/kg power density while reducing weight for rooftop solar installations.

Detects DC voltage ripple to time switching operation start, preventing overcurrent during boost chopper startup.

A poly-phase AC/DC active power converter reconfigures to voltage boost mode during startup using a DSP controller.

A power converter merges AC-DC and DC-AC stages using shared switching elements to produce stable output voltage.

Adaptive dead time control minimizes switching delays in power converters using real-time body diode detection.

A synchronous rectifier control method calculates drive signals from transformer winding current to manage power transfer in non-isolated DC-DC converters.

A control circuit gradually turns on the main power transistor to maintain current at a predetermined value.

Controller regulates input current command using oscillation component data from an LC filter capacitor to stabilize power conversion.

A power system apparatus couples resistive loads during specific power cycle portions to align current waveforms with voltage.

Dynamic DC bus voltage regulation using hysteresis control improves conversion efficiency by adapting to input variations.

A switching power supply device adjusts output voltage settings using a transformer with multiple secondary windings and synchronous rectification elements.

Computes real drain-source voltage by compensating parasitic inductor drop to prevent false triggering and improve efficiency.

A power factor correction controller turns off the active stage during low power consumption to reduce energy loss.

A perturbation mechanism modifies the current sense signal, enabling accurate overload detection at low input voltages where traditional thresholds fail.

A self-driven active rectification system uses a low-side feedback control loop to regulate MOSFET switching for efficient AC power conversion.

Segmented chokes suppress differential-mode ripples and improve EMI performance without increasing parasitic capacitance or device complexity.

A switch-mode power supply controller estimates input and output voltages using magnetizing inductance discharge time measurements.

Current injection discharges parasitic capacitances to eliminate voltage spikes and ringing across secondary rectifiers.

A converter circuit switches between full-bridge and half-bridge modes to adjust voltage gain dynamically.

Active voltage tuning unit adjusts impedance to minimize voltage gain variations and protect components from spikes without changing operating frequency.

A synchronous rectification circuit integrates switching transistors with a control circuit on one chip to reduce device size.

Adaptive synchronous drivers in multi-phase SMPS skip pulses via tri-stating, reducing energy waste from sensing resistors.

A power converter uses a multiplexer to route energy packets from a single inductive element to multiple load circuits.

A lossless snubber circuit recollects input power to correct the power factor in high-power LED drivers.

A power manager integrated circuit uses a single switching regulator to supply multiple domains.

A DC to AC power converter uses four switches and a transformer to generate sinusoidal output.

Rectifying circuit converts phase-shifted AC to DC, filtering harmonics to stabilize voltage and prevent flickering in LED lighting systems.

A semiconductor device merges direct and switching charging paths using transistor networks to supply battery voltage.

Shifting modulation waves to carrier extrema reduces switching losses and thermal stress on semiconductor devices.

A power converter controller integrates input current through a capacitor to enable cycle-to-cycle limiting.

Dynamic controller shifts between pseudo resonant and bottom skip modes to suppress magnetostrictive transformer noise under varying load conditions.

A buck-boost PFC converter regulates output voltage using dynamic switching control.

A forward converter uses a secondary LCD circuit to enable bidirectional energy transmission and improve power efficiency.

Dynamic switching frequency adjustment aligns phase count with resonant frequency, suppressing output voltage ripple during load transitions.

Detection circuit reduces switching device ON time when source gate voltage drops, preventing excessive current flow from damaging the controller.