Efficient Power Electronics Conversion TRIZ Cases

A switching power supply control circuit manages capacitor charging to reduce audible noise.

A switching converter system transitions between PWM and PFM modes using peak inductor current thresholds.

A voltage conversion circuit uses multiple pulse control circuits to source current pulses based on offset feedback signals.

A power converter controller adjusts auxiliary switch timing based on detected voltage waveforms to optimize zero-voltage switching.

On-chip inductors in a resonant buck regulator reduce switching power consumption while shrinking component size.

A power converter control scheme uses low-pass filters to generate feedback signals for dynamic switching frequency adjustment.

Boundary control scheme adjusts switching frequency within a defined band to optimize voltage gain and efficiency in LLC resonant converters.

A contactless energy transfer system determines coil parameters through current measurement during a shorted secondary phase.

Bidirectional signals prevent simultaneous transistor activation, eliminating damage risks while maintaining rectification efficiency.

A voltage converter adjusts switching frequency based on pulse width to maintain stable output voltage.

A SIMO power supply circuit adjusts switching transistor ON-times using real-time inductor current detection signals.

Dynamic voltage control in a two-stage PFC rectifier reduces downstream stage volume while maintaining tight output regulation.

A freewheeling step-down converter topology uses a diode and MOSFET clamp across the inductor to improve efficiency.

A compensation network detects input-output voltage differences to enable zero-voltage switching, reducing switching losses and increasing power density.

A controller manages conduction times in an active clamp flyback circuit to enable zero voltage switching.

A primary-side controlled quasi-resonant flyback converter generates sinusoidal input current using a shaper circuit and bias network.

A control circuit generates switching signals to maintain input current proportional to the voltage conversion ratio.

An electronic converter uses an inductive element and offset cancellation to estimate secondary current, resolving precision issues in resonant topologies.

A synchronous rectifier disables switching during startup to prevent energy recirculation damage in power converters.

A charge pump controller decouples the power source during low loads to minimize quiescent current consumption.

A controlled resonant charge transfer device adjusts switch times and voltage ratios using a feedback control system.

Active clamp flyback converter shifts resonance dominance to the output capacitor.

LLC converter uses PWM startup to limit surge current before switching to resonant mode, protecting MOSFETs during capacitor charging.

Voltage selection circuit compares input and output voltages to activate the optimal power supply path, eliminating voltage drops from series switches.

A predriver circuit selectively adjusts gate terminal impedance to control switching transitions in power converters.

A half-bridge inverter integrates rectification and boosting functions to drive solid state lighting loads.

A power converter controller adjusts on-state resistance of switching blocks to regulate output voltage.

A control circuit generates a feed-forward current proportional to input voltage and propagation delay for accurate switching timing.

A single-phase cycloconverter uses line-frequency energy storage to maintain phase difference with AC mains for constant power transfer.

A second reactor positioned between AC side terminals and bridge connection points suppresses overcurrent flow caused by switching timing deviations.

A DC/DC converter uses dynamic phase control to manage switching elements for voltage conversion.

An interleaved power factor corrector uses a single current sampling resistor to detect multiple phase currents for precise PWM control.

A switching power supply unit uses a surge voltage suppressing circuit to gently recover reverse voltages and reduce rectifier losses.

A switching converter controller adjusts buck and boost duty cycles to maintain consistent output voltage across varying input levels.

A switching power supply corrects feedback signal levels based on secondary side conduction period to stabilize output voltage.

Pulse skipping circuitry reduces power loss by temporarily disabling PWM pulses when output voltage exceeds target values.

A silicon carbide power module integrates a baseplate and active metal braze substrate to improve thermal performance.

Adjusting resonant period and delay periods minimizes auxiliary switch conduction losses while lowering voltage stress on primary power switches.

Segmented inductors decouple voltage stability from transient response time, preventing device failure during rapid current changes.

N:1 resonant star topology voltage regulator uses high-frequency switching to achieve ten times higher bandwidth than traditional step-down regulators.

A trimmable inductor assembly balances phase currents by modulating air gap size through a mechanical positioning device, reducing component sensitivity.

A multi-stage power converter uses a single control unit and digital isolators to manage signal transmission across conversion stages.

A sense resistor and comparator detect open-diode faults in synchronous output stages, preventing latch-up risks.

A boost converter uses floating capacitors to increase electrical impedance between switching elements and a mounting member.

Wide bandgap semiconductor switching devices reduce turn-on and turn-off losses in power conditioning modules.

A resonant current sensing circuit detects capacitive region operation in LLC converters to modify switching control signals.

A PFC circuit adjusts fan rotation speed to balance positive and negative bus bar voltages.

Offline power converters enter low-power sleep states using energy storage capacitors to minimize standby consumption.

A motor driver modulates gate drive current levels across switching regions to control voltage transitions and reduce electromagnetic interference.