Efficient Power Electronics Conversion TRIZ Cases

Integrator accumulates primary current to maintain constant output current without secondary feedback.

A power converter uses a capacitor-switch parallel structure to reduce voltage peaks generated during switching operations.

A UPS input circuit adjusts transistor switching frequency using pulse width modulation to correct power factor and reduce harmonic distortion.

A single-stage current-fed clamped series resonant converter integrates a boost input shaper with digital control to achieve unity power factor correction.

Controller disables synchronous rectification when conduction time is shorter than blanking period, preventing energy loss and maintaining high efficiency.

A control circuit generates a PWM signal based on inductor current and input voltage to drive the power stage.

Variable deadtime calculation adapts to switching frequency and voltage thresholds, reducing time loss while preventing cross-conduction in H-bridge circuits.

Synchronizing phase and frequency before mode transition prevents output voltage deviations during switching.

Segmenting lock screen interactions into distinct levels allows users to access relevant content while maintaining power savings and security.

Snubber circuit absorbs reflected voltage from secondary winding, reducing switch stress and improving output stability.

Interleaved modulation in a modular DC/DC converter achieves high step-down voltage ratios while reducing component count and cost.

An integrated modular multifunction converter eliminates bulky passive filters by actively synthesizing balanced three-phase AC waveforms from battery DC power.

A regulator circuit adjusts output voltage based on sensed load current to maintain optimal power levels.

A buck circuit uses a transient control module to rapidly discharge excess current via the low side MOS.

Segmenting power conversion between a main flyback stage and supplemental regulator reduces energy losses while maintaining regulation performance.

An active diode isolates a bootstrap node from a supply voltage, preventing circuit breakdowns when voltages exceed limits.

Dynamic transistor control prevents current backflow in parallel power inputs, reducing heat generation and improving supply efficiency.

An auxiliary power supply circuit generates backup voltage from the secondary switching element source-drain potential to maintain control logic operation.

Sensing voltage slope at the intermediate node allows dynamic dead time adjustment, reducing reverse recovery charge and thermal stress on low-side transistors.

A synchronous rectifier drive circuit uses auxiliary windings to generate control signals.

An LLC resonant converter adjusts switching frequency by dynamically modifying LC circuit capacitance via controlled switches.

Dead-time measurement estimates load current to resolve accuracy issues in switching regulator mode transitions.

Synchronous rectifier switches create a controlled short circuit to redirect transient energy back to the DC input.

A power converter controller pre-charges a soft-start capacitor to reduce startup delay and ensure stable voltage regulation.

Detects transformer magnetizing current to switch PSFB control modes for optimal soft switching.

Adjusting switch transition timing reduces energy loss and voltage stress on semiconductor elements by distributing spikes across multiple switches.

A processor modulates voltage regulator communications using stored parameter information to enable flexible platform design.

A non-inverting buck-boost converter regulates voltage ratios for an LLC resonant stage to support universal mains input.

A photovoltaic power conditioning unit uses a shared series inductor to balance current between parallel dc-to-dc converters.

Antiparallel thyristors discharge capacitive elements via reverse-biased leakage current triggered by gate signals.

A hysteretic DC-DC converter uses a unique feedback network with resistors and a feed-forward capacitor to enable externally adjustable switching frequency.

Second converter cells internally dissipate power from DC link capacitors during start-up, preventing overvoltage damage to semiconductor devices.

A switching mode power supply control circuit manages burst mode transitions to reduce switching losses.

A switching regulator adjusts the sawtooth signal threshold to stabilize the switching frequency in quasi-resonant converters.

A three-stage power source uses an unregulated inverter and soft switching to reduce heat losses.

Alternating H-bridge switching elements distributes thermal loads, reducing transients and harmonics in electro-slag remelting furnaces.

Scaling linear controller output based on load current thresholds mitigates non-linear behavior and maintains stability in resonant-tapped inductor converters.

Averaging sequence avoids critical duty ratios to eliminate voltage spikes, enabling lower-rated components while maintaining output regulation.

Asymmetric grounding and synchronized switching balance capacitor currents to eliminate electromagnetic noise propagation at the grounding point.

A power supply uses a resonance circuit to enable zero current switching, eliminating switching losses and heat generation in DC-DC converters.

Dynamic control of switch ON times prevents overvoltage damage in resonant switched-capacitor converters without adding bulk circuitry.

A chopper circuit uses statistical processing of device electrical characteristics to set switching control unit timing parameters.

A self-driven synchronous rectifier circuit uses a MOSFET body diode to sense current flow and synchronize gate drive signals.

Multi-input LLC resonant converter uses balance capacitors to maintain voltage equality across series-connected switch elements.

A single-stage LLC resonant converter uses a separate shunt inductor to drive multiple output circuits.

Skipping oscillation frequency signals prevents switching localization, reducing output voltage ripple and noise while maintaining power conversion efficiency.

A switching power supply adjusts its reference voltage to optimize efficiency at partial load conditions.