Efficient Power Electronics Conversion TRIZ Cases

A clamping circuit enables rapid switching between pulse frequency and pulse width modulation modes in DC-to-DC converters.

Resonance current paths reduce switch voltage stress and circuit efficiency losses in bi-directional power transfer systems.

A power allocation method for multi-parallel power electronic transformers uses curve fitting to determine optimum distribution.

A reverse current determination circuit detects discharge from a secondary battery using existing components.

Secondary-side control circuitry drives a load switch to block current paths during supply voltage faults.

A synchronous boost regulator circuit maintains high efficiency during pass-through operations by keeping the high-side switch ON.

A high-frequency AC-DC converter uses a resonant technique to shape line current sinusoidally and operate semiconductor devices at the fundamental frequency.

A snubber circuit connects between bus bars and power supply terminals to minimize inductance.

A semi-resonant switching regulator uses level sensing to optimize zero voltage switching points.

Preliminary integration of sinusoidal waveforms during off-time periods eliminates low-pass filter latency while maintaining measurement precision.

A power supply controller adjusts switch on-time using a compensation circuit to regulate output voltage and minimize phase shift.

A switching converter control circuit generates a cancelling signal to eliminate output voltage ripple.

A current sampling circuit processes switch currents to represent output current in multi-mode converters.

Segmented snubber capacitors on shorter leads reduce surge voltage without increasing module size or cost.

A variable frequency multiplier power converter adjusts switching frequencies to optimize energy transfer across wide input voltage ranges.

A switching power source design incorporates voltage-current conversion units and a comparison unit to enable precise low-current detection.

A switching regulator control circuit generates variable on-time signals to maintain stable output voltage during light load conditions.

A flyback active clamping power converter uses a resonant inductor and clamping capacitor to enable zero current switching.

Short-circuiting the transformer during idle phases allows larger neutral point regulating currents to balance capacitor voltages under light load conditions.

A valley locking circuit samples output current to generate feedback signals that control switching power supply operation.

A control circuit detects input voltage and adjusts switching duty to regulate output without bulk capacitors.

A resonant gate driver recovers energy from transistor gate capacitance using an LC circuit to charge and discharge the switch efficiently.

Segmented gate drive currents limit voltage thresholds during Miller plateau regions to reduce electromagnetic interference while maintaining switching speed.

A drive device uses a sense current control circuit to regulate the gate current of a power switching element.

Dynamic control mode selection based on detected load current reduces switching losses while maintaining low total harmonic distortion.

A detection circuit uses a multi-stage differential input to generate an offset voltage that adjusts turn-off timing.

A voltage detection circuit extracts flyback signals to enable precise dimming control in LED luminaires.

Phase-modulated switching disperses EMI noise across a wider frequency range while reducing inductor volume and minimizing switching losses.

A DC-DC switching converter uses burst mode operation to maintain output voltage regulation at low loads.

A switching regulator adjusts ON-periods of complementary elements to maintain stable output voltage.

Segmenting transformer groups in a branched resonant converter reduces current density and power loss, enabling efficient high-frequency operation.

Asymmetric inverter leg uses superjunction MOSFETs for outer switches and IGBTs for inner switches to balance voltage across the phase leg.

A switching regulator uses a comparator circuit to monitor node voltage for accurate current detection without inserting a sense resistor.

An SR driver adjusts gate control signals via a load detection circuit to manage switching timing.

A voltage dependent non-linear resistance injects additional current into a PFC flyback controller multiplier input to shape the AC line waveform.

A switching power converter uses burst mode operation to deliver efficient power conversion across varying load conditions.

A high voltage start-up circuit uses a latch unit and charge sharing to form current paths for external capacitor charging.

A synchronous converter control circuit detects inductor current zero crossings to adjust the rectifier gating signal.

A commutation switch control voltage generating circuit manages gate signals in forward converters to stabilize switching operations.

Digitally-controlled nonlinear load compensation mechanism adjusts reference voltage via auxiliary winding feedback to cancel output cable resistance effects.

A method disconnects inverter power sources to nullify transformer secondary voltage before chopper switching.

A three-phase Vienna rectifier control method uses pulse width modulation to selectively switch two arms based on current sign changes.

Real-time detection eliminates idle wait times, preventing brownouts while maintaining stability.

Self-driving high-side switches minimize switching losses by reusing gate charges through parasitic capacitances.

Segmented power paths isolate auxiliary sensors from high-load stages, reducing standby consumption below 0.5 W.

A DC-to-DC converter adjusts switching element duty cycles using output and current detectors to regulate power delivery.

A multi-path control circuitry switches between pulse width modulation and pulse frequency modulation modes to adjust output voltage.

A dual-ramp modulator controls ON and OFF times in a DC/DC converter, clamping the falling ramp during discontinuous conduction mode to avoid sub-harmonics.

Switching voltage regulators adjust supply levels based on integrated circuit power states to resolve performance and energy trade-offs.