Efficient Power Electronics Conversion TRIZ Cases

A DC power supply device uses segmented magnetic cores and series-connected secondary circuits to achieve stable electrical isolation.

A synchronous rectifier driver pre-positions the gate voltage to enable rapid turn-off of the switching device.

A buck converter high side driver turns off during tri-state mode to prevent current leakage.

Light load detection circuit adjusts SR driver gate voltage to minimize switching losses during low power operation.

A switching power converter uses a hysteretic control loop to adjust threshold values and maintain constant on-time.

A voltage converter uses dual media and a choke to manage energy storage through controlled switching phases.

Secondary controller induces voltage pulses via impedance changes to reflect output status through bias winding, resolving magnetic coupling inaccuracies.

A soft-stop overvoltage protection circuit reduces multiplier output when detection voltage exceeds a first threshold to stabilize power supply operation.

A drain detect circuit monitors primary switch states to gate synchronous rectifier turn-on signals.

Dual submodule merges two asymmetric half-bridge circuits to share current paths and reduce line losses in modular multilevel converters.

A resonant inverter uses a snubber circuit and zero voltage switching to protect switching elements from surges.

A resonant power converter uses a control circuit to dynamically adjust switching frequencies and pulse widths for stable output regulation.

A flyback converter uses a timing control method to turn on the secondary switch twice per cycle for zero-voltage switching.

A power-on-reset circuit consumes virtually no current until the supply voltage reaches a threshold.

A control circuit bypasses bridge rectifier diodes after startup to minimize steady-state energy consumption in power supply apparatuses.

A switching converter adjusts ramp signal slope and delay via feedback to maintain stable output voltage across varying loads.

Bridgeless power factor correction converter eliminates the bridge rectifier to reduce conduction losses and common mode noise.

A control apparatus stabilizes resonance cycles in switching power supplies by generating fixed-duration on signals during no-switching periods.

An LC network coupled to the output terminal creates a dominant pole that resolves slow regulation speeds under dynamic load variations.

Replacing bulky transformers with resonant coupling eliminates manufacturing complexity while maintaining reliable galvanic isolation.

A system controller manages PWM controller current consumption by powering down unnecessary blocks during light load conditions.

An asymmetric transformer configuration enables soft switching in a DC/DC converter, reducing power loss during primary side voltage fluctuations.

A buck DC-DC converter control component uses measured load current and input voltage to generate PWM signals that decouple disturbances.

Controller detects module voltages to adjust modulation signals, resolving voltage disequilibrium without extra hardware circuits.

Series primary transformers and autotransformer current doubler reduce voltage stress while maintaining high efficiency.

A predictive synchronous rectification controller uses a ramp generator and peak sampling unit to manage switch conduction states.

Stepwise reference adjustment minimizes energy wastage during transitions while accelerating voltage calibration speed.

A control circuit synchronizes switching pulses across multiple power factor correction stages using inductor magnetization feedback signals.

Replacing discrete diodes with controlled power switch tubes reduces power loss and improves system integration in on-chip rectification applications.

A hybrid power converter uses a segmented buck boost stage and a resonant stage to achieve zero voltage switching.

Adding an average inductor current correction signal to the control loop improves the -3 dB bandwidth and reaction speed of a current-mode DC/DC converter.

Feedforward compensation counters gain reduction to prevent controller-induced pulse skipping during low duty cycle operations without adding components.

Primary side controller estimates magnetizing current zero-crossing to generate an auto-tuned delay for the active clamp switch.

A PFC signal generation circuit stabilizes control pulse cycle lengths using a counter with a defined lower limit.

Dynamic off-threshold calculation compensates for electronic switch turn-off delays, maintaining constant output signal across varying input voltages and loads.

Analog predictive dead-time control synchronizes half-bridge switches using phase difference voltage, eliminating cross-conduction and reducing power loss.

A power converter system uses a wake-up element to maintain output voltage with quasi-zero standby power consumption.

A flyback switching power supply uses secondary-side rectifier control to improve dynamic response performance under varying load conditions.

A bi-directional DC/DC converter switches between fixed frequency and frequency modulation control modes to expand voltage range delivery.

A power converter uses a switch and current-limiting element to manage normally-on transistor operation.

A control device synchronizes interleaved converter stages using a common signal to maintain precise phase offsets.

Primary side logic synchronizes switch phases to eliminate cross-conduction and reduce circuit complexity in synchronous rectification power supplies.

A DC-DC converter minimizes output voltage ripple by merging filtering capacitors into the main power conversion circuit topology.

Dynamic reference voltage adjustment optimizes duty cycle across varying input voltages and temperatures, reducing power conversion losses.

External bypass circuitry offloads heat generation from the driver circuit voltage regulator, eliminating bulky heat sinks.

Buffer device extends reverse recovery time to eliminate bleeder resistors and reduce power losses.

A rectifier control apparatus uses segmented detection and logic circuits to manage MOS transistor switching with high precision.

Timer circuit manages half-bridge switching cycles to prevent hard switching and reverse recovery stress on transistors.

Alternating resonance condensers manage charging cycles to lower peak currents in power supply reactors, enabling compact designs without saturation.