Efficient Power Electronics Conversion TRIZ Cases

A voltage conversion circuit adjusts transistor switching based on load conditions to optimize power delivery.

Delaying rectifier turn-off extends on-time to preserve switching frequency, preventing audible noise and simplifying EMI filter design.

Dual feedback parts detect output voltage to enable overvoltage protection without adding redundant sub-loop circuits or increasing device complexity.

Driving module generates control signals to switch secondary rectifier transistors at zero current and zero voltage points.

Replacing bulky passive components, an electronic inductor controls DC link voltage to minimize total harmonic distortion without saturating at high currents.

Active clamp circuit recycles leakage inductance energy, reducing rms current through the clamp capacitor to increase power density above 27 W/in³.

Auxiliary resonant circuits achieve zero-voltage switching in solid state transformers, reducing switching losses and electromagnetic interference.

A distributed electrical generation system uses high voltage diode bridges to rectify alternating current into direct current for transmission.

A bidirectional power converter manages reactive power via a switched mode cycloconverter and resonant tank.

A charge pump circuit uses a voltage inverter and current source to regulate output levels.

Secondary side voltage signals pass through isolation components to drive primary side clamping circuits, preventing voltage spikes during switching operations.

An internal error feedback loop adjusts the PWM duty cycle to dampen voltage peaking in buck regulator output signals.

Modulating the oscillator frequency distributes spectral energy to reduce electromagnetic interference in switching regulators.

A single-phase non-isolated inverter uses a PI controller to adjust switch duty cycles for balanced capacitor voltages.

Super burst mode turns off charge pump transistors during low load currents, reducing switching losses while buck transistors regulate output voltage.

A parallel resistor and inductor current detector reduces power loss during normal operation of a power semiconductor device.

A switching device compensation circuit adjusts control pulse amplitude via a variable-gain amplifier to maintain stable transistor operation.

An isolated DC/DC converter circuit regulates output voltage by switching transformer turns ratios to maintain a constant duty cycle.

A control device adjusts inverter carrier frequency based on DC-side voltage to manage switching signals.

A GaN switching converter uses a parallel clamp circuit to recycle leakage energy and charge the inductor independently.

A pulse skip circuit adaptively adjusts high-side and low-side switch on-times in voltage converters.

A dual control loop switching regulator reduces output voltage swings during light load transitions by dynamically adjusting reference voltages.

Evaluating superimposed voltage components via one sensor pin minimizes harmonic reflection into the network while reducing device complexity.

A synchronous rectifier controller adjusts the turn-off threshold based on output voltage to maintain consistent dead time.

An adaptive ramp signal generator adjusts RC time constants to control PWM switching in power regulators.

Bypass diodes provide alternative current paths during inactive PFC modes, reducing component stress while maintaining voltage levels.

Auxiliary control module samples output supply voltage to prevent flickering during dimming.

External circuitry detects zero voltage state via diode conduction, eliminating complex controller calculations and reducing switching losses.

Power converter recovers leakage inductance energy via secondary winding to suppress spike voltage and reduce conduction losses.

A power factor correction circuit operates a switching element in burst mode to reduce switching losses during light load conditions.

Injecting a zero sequence component into the total modulation wave of a hybrid topology power converter to generate compensated signals for precise switching control.

A power conversion controller switches between variable and fixed frequency modes to optimize circuit operation across different load levels.

A power converter system stabilizes voltage levels through dedicated high and low voltage control circuits.

A bias stage converter circuit provides an isolated power signal and monitors input voltage on the secondary side of the isolation barrier.

Coupling inductors extract DC offset current from the transformer, reducing size and improving zero-voltage switching efficiency.

A voltage ramp circuit modifies output voltage response using compensation parameters to eliminate ramp lag and latency during dynamic voltage transitions.

An open-loop charge pump reduces input voltage for a closed-loop buck converter, minimizing switching losses at low loads.

Merging multiple supply functions into one module reduces energy waste while maintaining reliable operation.

Segmented magnetic cores cancel adjacent flux between transformer and inductor windings, reducing core losses without increasing volume.

A series resonant DC/DC converter uses specific switching intervals to achieve zero voltage and current switching.

A switching power supply device uses duty ratio modulation to control output power while maintaining a fixed switching frequency.

A control mechanism detects synchronous rectifier drain-to-source voltage to adjust LLC resonant converter switching frequency.

A DC to DC converter maintains a consistent switch operation order across operating modes.

A power monitoring circuit uses an integrator and divider to calculate regulator power.

A three-level switch circuit uses resonant oscillation to enable zero-voltage switching of transistors.

Replacing secondary diodes with MOS transistors enables synchronous rectification that minimizes magnetic flux leakage and stabilizes load operation.

Dynamic frequency adjustment prevents transformer core saturation and reduces switching losses in compact flyback converters.

Segmented feedback detection isolates transient disturbances from normal operation signals, maintaining stable output voltage during electrical fast transients.

A synchronous rectification control circuit adjusts delay timing to turn off the rectification switch at zero inductor current.

A buck power factor correction circuit adjusts line current to the bulk capacitor for stable output.