Efficient Power Electronics Conversion TRIZ Cases

Angled filter condensers shorten wiring paths between switching elements and capacitors in polyphase power converters.

A high-frequency impedance circuit grounds the dual-DC bus midpoint while suppressing third harmonic common-mode current during active rectifier transients.

A PFC switch timing controller adjusts on-time via PID regulation to maintain average current proportionality.

Hybrid control stabilizes voltage under light loads by switching between frequency modulation and width-fixed frequency modulation via hysteresis thresholds.

A self-oscillating LLC converter circuit generates gate drive signals using electrical feedback parameters to achieve stable power factor correction.

A synchronous clock generator circuit produces balanced phase-shifted pulses using width-based master-slave detection.

A dual converter power supply processes wide input voltages with reduced conduction loss by segmenting ranges across LLC and inverter stages.

Switch-selected taps adjust resonator inductance, maintaining high transmission efficiency across varying load impedances.

A peak current detector subtracts a pedestal component from an indicator current to generate a calibrated signal for precise inductor monitoring.

Pre-charging charge pump stages via standby signals reduces internal voltage buildup time while maintaining high voltage for accurate data read operations.

Adaptive control adjusts non-overlap time based on current flow through auxiliary switches to reduce power dissipation.

Constant on-time control in a boost converter resolves the bandwidth-stability trade-off, delivering fast transient response without circuit complexity.

A power supply device adjusts output current based on electrical consumer power consumption using pulse-width modulation.

A multi-level inverter reduces input voltage to a resonant unit, maintaining operation near the resonant frequency.

Asymmetrical commutation timing minimizes circulating energy and harmonic distortion in high-efficiency AC-to-DC conversion.

Stop transition unit halts microcomputer operation before regulator output reduction, ensuring data saving completion and preventing overheating.

A PWM signal generator determines the turn-on time of a switching transistor based on input voltage levels.

A DC to DC converter bypasses a diode using a synchronized switch to reduce forward voltage drop.

Eliminating counters from the hysteretic switching mechanism reduces hardware complexity and improves response rates during load changes.

A field electrode structure limits horizontal extension to reduce output capacitance in semiconductor devices.

A discontinuous pulse width modulation technique adjusts gating signals to minimize semiconductor switching losses in power conversion systems.

Built-in gate resistors balance current across parallel semiconductor elements by suppressing LC resonance from stray inductance and parasitic capacitance.

Reconfiguring PWM modules prevents random pulses that saturate magnetic components during power up.

A constant on-time isolated converter uses a secondary-side processor to detect output voltage and current directly.

A controller manages gate drive signals across five phases to transfer leakage energy and achieve zero voltage switching.

A resonant inverter uses selective switching of control capacitances to adjust the power factor and resonant frequency dynamically.

A control apparatus monitors choke coil current to manage switching element timing for effective surge voltage suppression.

Controller extends switching cycle when junction voltage indicates light load, reducing switching losses and improving detection accuracy.

A control circuit adjusts peak signals based on switch voltage to maintain phase shift in interleaved converters.

Parallel charge and discharge paths manage energy accumulation to prevent element breakdown while reducing wiring inductance losses.

A half-bridge LLC converter adds a third transistor to enable PWM mode during hold-up operation.

Adjustable restart delay suppresses rectifier surge voltage during startup while maintaining fast transient response in normal operation.

A power-supply controller signal combiner generates a combined feedback signal from sense and output signals.

A control circuit triggers power switches at inductor current zero-crossings to refresh bootstrap capacitors.

A control circuit with deep burst mode reduces switching loss by generating a single switching signal per period during very light-load conditions.

Self-oscillating DC-DC converter uses a Curie temperature transformer core to provide galvanic isolation for LED arrays.

A small air-core inductor dampens parasitic reverse current pulses through catch diodes in switching mode power supplies.

A voltage supply circuit generates a driver supply voltage from a transformer secondary winding using a flyback converter.

An auxiliary coil provides reliable zero-current detection signals when resonance voltages drop, preventing power factor reduction and switching losses.

A DC-DC converter employs a fully differential amplifier to generate stable output signals.

Voltage-second controller manages secondary duty cycle during DC-to-DC converter startup to maintain output voltage at a non-zero pre-biased level.

A detection circuit measures rectifier voltage during OFF cycles to generate current pulses for primary-side feedback.

A DC/DC power conversion device suppresses voltage applied to switching elements using series-connected reactors and legs.

Synchronous rectifiers in a Class D amplifier power supply topology reduce quiescent power consumption from 12.1 W to 8.4 W.

Interleaved two-phase DC-DC converter uses an auxiliary inductor to achieve self-assisted zero-voltage switching.

Correction circuit aligns input and output waveforms to reduce total harmonic distortion in aircraft electrical systems.

Voltage-controlled current source masks undamped resonance during load jumps, preventing component destruction and enhancing control bandwidth.

A flyback converter control circuit recycles transformer leakage inductance energy through an active clamp mechanism driven by demagnetization timing.